Edition 43 - Isis Innovation
Edition 43 - Isis Innovation
Edition 43 - Isis Innovation
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News<br />
Reviewing the latest innovations, collaborations<br />
and technology transfer from <strong>Isis</strong> <strong>Innovation</strong> Limited<br />
<strong>Edition</strong> <strong>43</strong> Winter 2004<br />
Network<br />
nerves<br />
Contents: News and Events 3 Oxford <strong>Innovation</strong> Society Talk 4<br />
Technologies 7 Spin-out Updates 13 <strong>Isis</strong> Angels Network 14 OIS Meetings 20
Editorial<br />
Tim Cook<br />
Lawyers, Links and Investigations<br />
The themes of several of the<br />
articles in this Newsletter are<br />
pathways and linkages.<br />
Professor Steve New’s paper,<br />
Supply Chain <strong>Innovation</strong>,<br />
which he gave at the<br />
September meeting of the<br />
Oxford <strong>Innovation</strong> Society,<br />
Dr Tim Cook, Managing<br />
describes the management<br />
Director, <strong>Isis</strong> <strong>Innovation</strong>.<br />
and morphologies of the<br />
supply chain. Although Steve’s subject was primarily<br />
focussed on the supply chain in a commercial context there<br />
is some interesting analysis to be done applying the concepts<br />
he describes to other activities, not least the transfer of technologies<br />
from universities!<br />
Professor Steve Davies’ latest spin-out VASTox, (which name<br />
originated from Value Added Screening Technologies<br />
Oxford), works in chemical genomics and floated on AIM in<br />
October at a valuation of £45 million. The company<br />
describes Chemical Genomics, as “Chemistry probing<br />
Biology” and using Oxford’s combined world-class expertise<br />
in both these disciplines, and as well as a very large workforce<br />
of fruit flies and zebrafish they will screen drug candidate<br />
molecules for the pharmaceutical industry. The company is<br />
already running a programme in Duchenne Muscular<br />
Dystrophy and has recently licensed in some <strong>Isis</strong> technology<br />
in this area.<br />
A recent International Patent Litigation Conference in<br />
London identified major opportunities for the Oxford Expert<br />
Witness Programme, operated from <strong>Isis</strong> <strong>Innovation</strong>, which is<br />
described on page 3.<br />
Contents<br />
News and events 3<br />
Supply chain innovation 4<br />
Dr Steve New<br />
Research Patents – 6<br />
don’t forget your colleagues!<br />
By Hamish Bennett, Darbys<br />
Oxford simulation apparatus 7<br />
for flexible endoscopy<br />
<strong>Isis</strong> Project 1422<br />
<strong>Innovation</strong>s in biological nanostructures 8<br />
<strong>Isis</strong> Project 2113<br />
VASTox plc 9<br />
Spin-out<br />
Diagnostic for Myasthenia Gravis 10<br />
Licence deal signed with Athena Diagnostics Inc<br />
Vaccines which pack a double punch 11<br />
<strong>Isis</strong> Project 1444<br />
Therapeutic Applications of a 12<br />
CC Chemokine Binding Protein<br />
<strong>Isis</strong> Project 1325<br />
Spin-outs – growths and change 13<br />
Rounding up spin-out news<br />
<strong>Isis</strong> Angels Network 14<br />
By James Mallinson<br />
Echocardiographic image analysis 15<br />
<strong>Isis</strong> Projects 1283, 676, 874 and 1095<br />
Brain connectivity mapping 18<br />
<strong>Isis</strong> Project 1341<br />
Oxford <strong>Innovation</strong> Society Meetings 20<br />
2
News and events<br />
The latest developments in Oxford and the world of Technology Transfer<br />
The views of two Vice-Chancellors<br />
Lawyers seek Oxford experts for patent litigation cases<br />
One of the reasons <strong>Isis</strong> <strong>Innovation</strong> has developed so rapidly<br />
has been the support we have received from the top over<br />
recent years. On 5 th October, in the oration marking his<br />
retirement as Vice Chancellor of the University, Professor<br />
Colin Lucas, said:<br />
Legal professionals are increasingly turning to Oxford<br />
University when they need independent, authoritative<br />
advice and expertise. This was one message from the recent<br />
13 th International Patent Litigation Conference held in<br />
Bloomsbury, London.<br />
“We have grown <strong>Isis</strong> innovation into an arm of technology<br />
transfer that has been publicly recognised as exemplary.”<br />
This reflects the changes that occurred in <strong>Isis</strong> during Colin<br />
Lucas’ Vice-Chancellorship, a growth in patents to one a<br />
week and the creation of forty new spin-out companies.<br />
This would not have been possible without University<br />
support at the highest level, both financial and non-financial.<br />
At the same occasion in his address as incoming Vice<br />
Chancellor, Dr John Hood said:<br />
“<strong>Isis</strong> <strong>Innovation</strong> is an acknowledged leader in the management<br />
and commercialisation of intellectual property. It is<br />
therefore imperative that we continue to engage in the<br />
evolution of public policy, to be creative and innovative in<br />
our strategic responses, and to develop our resources so<br />
that we build strongly on our past successes.”<br />
So I believe we can expect no diminution in either the<br />
support we can expect, or the demands, from the University<br />
and I am sure <strong>Isis</strong> <strong>Innovation</strong> will continue to lead the field.<br />
Tim Cook<br />
Oxford University Consulting (OUC), part of <strong>Isis</strong> <strong>Innovation</strong>,<br />
attended the September meeting in order to promote the<br />
Oxford Expert Witness business to around 80 intellectual<br />
property managers, including patent agents and attorneys<br />
from around the world.<br />
Dr Rick Inwood, from OUC, commented, “As a direct result<br />
of this meeting we have had requests for Oxford experts<br />
from IP lawyers litigating patent violation cases in Australia,<br />
Israel and the USA.”<br />
OUC sources renowned experts from the University of<br />
Oxford for clients who value a professional service that is<br />
accredited to ISO 9001 standards of quality assurance.<br />
Clients who contact OUC are assigned a project manager<br />
whose role it is to identify the expert in the University most<br />
suitable to meet the client’s specific needs. OUC produces<br />
all the necessary documentation and manages administration<br />
and financial considerations on behalf of the expert and the<br />
University. Monitoring the progress of the contract to<br />
completion, the OUC project manager acts as a link<br />
between client and expert to ensure a continued flow of<br />
communication.<br />
JP Morgan sponsors Oxford <strong>Innovation</strong> Society meeting<br />
The September meeting of the OIS was sponsored by JP<br />
Morgan and Julian Oakley, Managing Director of JP<br />
Morgan Partners Europe Limited, presented a fascinating<br />
account of some of the deals in capital structure of early<br />
stage companies, providing a uniquely informed insight into<br />
the critical importance of strategic financial management in<br />
technology based businesses.<br />
As well as the provision of expert witnesses to the legal<br />
profession, OUC is also actively engaged in the areas of due<br />
diligence, management consultancy, process optimisation,<br />
data analysis, and specialist scientific testing services.<br />
We hope to publish an account of his presentation in future<br />
issues of Oxford <strong>Innovation</strong> News.<br />
3
Supply chain innovation<br />
OIS meeting at the Saïd Business School<br />
from the interaction between the chain members.<br />
<strong>Innovation</strong> becomes a distributed, shared activity – a pattern<br />
seen in many industries, including automotive and<br />
pharmaceuticals.<br />
The question then arises: in what sense does a) affect b)<br />
To understand this, we need to consider the two major<br />
developments in supply chain thinking that have arisen<br />
over the past twenty years or so.<br />
By adopting a long-term,<br />
trusting relationship, firms can<br />
lower what economists call the<br />
intrinsic ‘transaction costs’<br />
within the chain<br />
The partnership idea<br />
Dr Steve New.<br />
Introduction<br />
The term ‘supply chain innovation’ can be taken in two<br />
ways: a) innovations in the way firms manage their supply<br />
chain relationships, and b) the way technological innovations<br />
emerge in the context of the supply chain. The first of these<br />
has become a major area of interest in both practice and<br />
research; to focus merely on the internal management of<br />
organisations is not sensible. Firms operate in webs of complex<br />
interdependency with customers and suppliers, and –<br />
although the metaphor needs careful handling – the<br />
competitive unit can often be conceived as the ‘chain’,<br />
rather than the individual firm. Marketing, operations and<br />
financing become issues best addressed by seeking some<br />
kind of coordination with other members of the chain. The<br />
second interpretation of ‘supply chain innovation’ follows<br />
from this idea: new technologies do not tend to emerge<br />
fully formed from within a single organisation, but arise<br />
The first could be labelled ‘the Partnership Revolution’: the<br />
substitution of traditional, adversarial buyer-supplier<br />
relationships with longer-term, cooperative arrangements.<br />
Instead of being enemies who try to outwit one another in<br />
the rough and tumble of commercial negotiation, buying<br />
and selling organisations become ‘partners’ who seek<br />
mutual, rather than local, advantage. This manifests itself in<br />
the integration of the firms’ operations, as in the Just-In-<br />
Time system, or in efforts to reduce the waste and cost of<br />
unnecessary friction between the parties. By adopting a<br />
long-term, trusting relationship, firms can lower what<br />
economists call the intrinsic ‘transaction costs’ within the<br />
chain.<br />
This approach has significant implications for the management<br />
of technological innovation. Rather as in theories of<br />
employee empowerment (‘with every pair of hands, you get<br />
a free brain’), the partnership idea means that buyers can,<br />
for example, delegate technological expertise to the point in<br />
the chain to which it best belongs. Under adversarial<br />
relationships, powerful firms usually cling to all the technical<br />
knowledge themselves – finding negotiating power in<br />
concentrating technological ownership. This can be seen in<br />
4
the way traditional car manufacturers clung to the design<br />
of the whole car – using suppliers as mere sub-contractors<br />
to make the parts to a provided specification. In contrast,<br />
the partnership model allows skills and expertise to be<br />
distributed more optimally, with knowledge about design<br />
and manufacture held by those best placed to apply it.<br />
Furthermore, the partnership model encourages firms to<br />
delegate particularly risky technological projects to smaller<br />
firms, who may be culturally and structurally more<br />
equipped for high-speed, high-uncertainty innovation.<br />
Firms working in relatively stable, long-term relationships<br />
may also develop inter-firm technology transfer so new<br />
ideas about products and processes can rapidly disseminate<br />
between organisations. The emergence of paradigmbusting<br />
industrial practices in the Japanese automotive and<br />
electronics industry in the 1970s was reinforced by the<br />
remarkable speed with which suppliers adopted the new<br />
approaches. Under this model, it becomes in the firms’<br />
interest to share their technology with supply chain partners<br />
as effectively as possible.<br />
The B2B approach, with its<br />
focus on simple price<br />
competition, fails to address<br />
the way innovation really<br />
works<br />
The B2B frenzy<br />
The second ‘revolution’ emerged in the dot.com bubble of<br />
the late 1990s, only to burst early in the new decade.<br />
When the promise of B2C (business-to-consumer) on-line<br />
businesses became a little jaded, an excitable group of<br />
consultants, merchant banks and pundits began predicting<br />
that the Internet would transform B2B (business-tobusiness)<br />
trading relations.<br />
In particular, B2B Internet sites (‘hubs’ or ‘exchanges’)<br />
would emerge to intermediate the relationship between<br />
buyers and sellers; buyers would post their needs, and<br />
suppliers (globally, and in real time) would bid for the work.<br />
The hubs would be commercial matchmakers, making<br />
redundant traditional sales forces and purchasing<br />
departments. The market for all the stuff that organisations<br />
buy from and sell to one another would become more like<br />
those ‘pure’ and efficient markets about which economists<br />
fantasise, and in consequence prices would rapidly fall. The<br />
hubs, taking a tiny turn on the trillions of dollars of trade,<br />
would fulfil the dot.com dream of being low-capital, instant<br />
businesses that only needed to stake their claim in a<br />
particular sector to generate enormous profits.<br />
Thousands of such hubs were founded – only for the sector<br />
to collapse when people realised that the model rested on a<br />
number of flawed hypotheses about inter-organisational<br />
trade. This can be largely explained by the way these<br />
underlying assumptions failed to account for the nature of<br />
innovation.<br />
The B2B model rests on the notion that markets can become<br />
increasing standardised and commodified. But most industrial<br />
products are not commodities: their specification depends<br />
on constant dialogue between customer and supplier.<br />
In fact, the B2B model constrains innovation by limiting the<br />
intellectual traffic between trading parties. Furthermore, the<br />
buyers and suppliers are suspicious of interaction mediated<br />
by a third party. Additionally, much innovation is about<br />
product differentiation on non-price criteria (such as product<br />
specification, quality and so on). The B2B approach, with its<br />
focus on simple price competition, fails to address the way<br />
innovation really works.<br />
In conclusion, the Partnership model seems to win over the<br />
B2B model in regard to promoting technology innovation.<br />
But the B2B approach – in as much as it still exists in practice<br />
– can exhibit some potential advantages. For example, in<br />
some cases, it has allowed firms to expand the range of<br />
firms on whose expertise they can draw.<br />
In some sectors, such as automotive, B2B initiatives have led<br />
to industry-wide rationalisation of data formats, enabling the<br />
more efficient exchange of technical data. For innovative<br />
firms, however, the key opportunities lie in finding those<br />
long-term relationships with particular customers and<br />
suppliers in which collaborative technology transfer leads to<br />
mutual, and sustained, advantage.<br />
Steve New teaches at the Saïd Business School. His new<br />
book Understanding Supply Chains: Concepts, Critiques<br />
and Futures (co-edited with Roy Westbrook) has just been<br />
published by Oxford University Press.<br />
W www.sbs.ox.ac.uk<br />
5
Research Patents – don’t forget your colleagues!<br />
By Hamish Bennett, Darbys’ Corporate, Technology & Finance Team<br />
Inventions which are novel,<br />
inventive and capable of<br />
industrial application are<br />
patentable in the UK provided<br />
that they do not fall within<br />
certain exclusions.<br />
Scientific knowledge concerning<br />
Hamish Bennett, Solicitor, natural phenomena is excluded,<br />
Darbys’ Corporate, Technology<br />
as are those inventions whose<br />
& Finance Team.<br />
commercial exploitation is<br />
considered contrary to the values of society. However, when<br />
a university academic applies for a patent which falls<br />
squarely between discovery and invention, tensions may<br />
arise over exactly who are the inventors and beneficiaries of<br />
the patentable invention.<br />
If granted, a patent will confer monopoly rights within the<br />
scope of its claim, but does this monopoly provide just<br />
reward for the endeavour of the inventor or create an<br />
unnecessary barrier to further academic work The statutory<br />
exemption from patent infringement for non-profit-making<br />
academic research often throws up more questions than it<br />
answers, so how then to reward our academic for their<br />
inspiration without biting the hand that feeds them<br />
there are statutory entitlements for the employees to<br />
receive a share of the royalties. When the university own<br />
the patent rights, which is the case in Oxford, it may reserve<br />
the right for its staff to continue to use the patent for their<br />
own internal purposes. This principle will apply should the<br />
university licence the patent straight into the market place,<br />
or ‘spin out’ a company to exploit it. Furthermore, any<br />
subsequent assignment of intellectual property rights to a<br />
spin out company may be made conditional upon a licence<br />
back to the university for research or other commercial<br />
purposes.<br />
Such steps will help to create certainty without reducing<br />
the value of the patent or limiting the inventor’s potential<br />
for significant financial return. It is true that a spin-out<br />
company with the unfettered right to exploit a patented<br />
invention may be more attractive at first glace to venture<br />
capital, but any potential investor should be reassured of<br />
the wisdom in granting such a licence at an uncertain stage<br />
in the company’s development.<br />
A patent owner is under no legal duty to license their<br />
patent, but in some circumstances they may find themselves<br />
the subject of legal sanctions should they refuse to exploit it<br />
or otherwise abuse their monopoly. They should therefore<br />
grasp the opportunity to negotiate a limited licence on their<br />
own terms at an early stage. With patent granted and<br />
academic community placated, our patent owner may<br />
concentrate on exploiting their invention and earning the<br />
plaudits that their genius deserves.<br />
First of all, an applicant may specify in their claim the<br />
commercial use to which they intend to put their invention;<br />
reserving for themselves the right to improve or adapt it, but<br />
clearly setting out the circumstances in which they would<br />
not consider their patent infringed.<br />
Should a patent holder be an employee of a company or a<br />
university the way the benefits are shared between<br />
employer and employee will depend on the employee’s<br />
terms of employment. These vary from institution to<br />
institution, in Oxford and most UK universities the<br />
institution owns the rights and pays the patent costs but<br />
Contact<br />
Hamish Bennett<br />
Solicitor, Darbys’ Corporate, Technology & Finance Team<br />
DT 01865 811733<br />
DF 01865 811766<br />
T 01865 811700<br />
E hbennett@darbys.co.uk<br />
W www.darbys.co.uk<br />
6
Oxford simulation apparatus for flexible endoscopy<br />
OxSAFE: <strong>Isis</strong> Project 1422<br />
Research undertaken within the Nuffield Department of<br />
Anaesthetics has resulted in an invention known as the<br />
Oxford Simulation Apparatus for Flexible Endoscopy<br />
(OxSAFE). This low-cost system enables clinicians to<br />
perform endoscopic procedures in a realistic, virtual reality<br />
environment.<br />
Background<br />
Endoscopy is an important technical skill for many medical<br />
disciplines. This is especially the case for anaesthetists, who<br />
use an endoscope (the intubating fibreoptic bronchoscope) to<br />
visualise and negotiate a patient’s airway past obstacles, such<br />
as tumours or anatomical deformities, in order to correctly<br />
place a breathing tube. Failure to thus ‘secure’ the airway of<br />
a patient undergoing surgery or otherwise unable to breathe<br />
for themselves, can result in a life-threatening loss of oxygen<br />
supply. Managing the ‘difficult airway’ is therefore considered<br />
the anaesthetist’s specialist skill. However, the incidence of<br />
patients presenting with ‘difficult airways’ is low (1 in 3000<br />
general population), making it difficult to acquire and<br />
maintain this crucial skill.<br />
Physicians and surgeons undertaking other important, but<br />
less time-critical, endoscopic procedures, such as<br />
gastroscopy, colonoscopy, ureteroscopy and diagnostic<br />
bronchoscopy face similar issues as the anaesthetists.<br />
Snapshot of initial OxSAFE model.<br />
system may be the cornerstone of a new generation of<br />
endoscope simulators.<br />
The Oxford Invention<br />
Commercialisation opportunity<br />
OxSAFE is a novel device that exploits recent advances in<br />
computer vision, 3D computer graphics and simulation.<br />
OxSAFE isolates the three basic flexible endoscope<br />
movements and then uses computer vision to responsively<br />
measure them. These basic movement parameters are then<br />
fed into a 3D computer graphics engine, where training<br />
scenarios are simulated. The result is an endoscopic simulator<br />
that is simple and inexpensive, yet elegant and responsive.<br />
OxSAFE is also more versatile than current high-fidelity<br />
simulators, as the same device can be configured to receive<br />
endoscopes of all sizes and be oriented either vertically or<br />
horizontally. The inherent advantages of OxSAFE may be<br />
further enhanced by an internet library of virtual-reality<br />
models, constructed de novo or reconstructed from video<br />
samples of real-life cases. The inventors believe that this<br />
<strong>Isis</strong> <strong>Innovation</strong> Limited is in a position to offer this technology<br />
exclusively to a commercial licensee. This technology is the<br />
subject of a UK Patent Application.<br />
Contact<br />
Mrs Gill Rowe<br />
BIC Project Manager<br />
T 01865 280825<br />
E gill.rowe@isis.ox.ac.uk<br />
W www.isis-innovation.com<br />
7
<strong>Innovation</strong>s in biological nanostructures<br />
<strong>Isis</strong> Project 2113<br />
“When we start being able to build micro- and nano-scale<br />
components with imprinted information to self-assemble<br />
with themselves and into hierarchical structures, a whole<br />
new area of engineering will evolve”<br />
Prof. Whitesides, Harvard University<br />
a Strand 1 Strand 2 Strand 3 Strand 4<br />
+ + +<br />
b<br />
Nanobiotechnology is an emerging field of research with<br />
several attractive applications including biological computing<br />
and self-assembling nanorobots. DNA is commonly used as<br />
a biomaterial in the development of nanostructures due to<br />
its chemical characteristics and ability to form large uniform<br />
and/or patterned structures with variable reactivity. DNA<br />
lattices, tiling and nanowires are all currently in development<br />
for scaffolds, membranes and bio-computing, respectively.<br />
Enantiomer 1<br />
17bp (5.8nm)<br />
Or<br />
Enantiomer 2<br />
Digestion<br />
We have developed a simple, one step technique for the<br />
self-assembly of a three dimensional DNA tetrahedron.<br />
While existing methods for generating such structures often<br />
rely on enzymatic treatments as well as laborious purification<br />
steps, the basic synthesis of our structure can be<br />
accomplished in minutes.<br />
By themselves, DNA tetrahedra have a number of potential<br />
applications in drug delivery, gene therapy, and vaccine<br />
delivery. As the structure is three-dimensional, it possesses a<br />
cavity that could host a number of different biomolecules.<br />
Current research at Oxford, for example, is examining the<br />
potential for the tetrahedra to carry biologically significant<br />
proteins and enzymes, which would allow us to modulate<br />
the molecule’s function and activity in vitro and in vivo. One<br />
application being explored is the ability of the structures to<br />
act as taste masking cages.<br />
Another exciting application of these structures is the<br />
assembly of arbitrary shapes and structures on the<br />
nanometre scale. Tetrahedra are natural geometric building<br />
blocks for the construction of other objects, and we are<br />
currently exploring a number of ways of joining tetrahedra<br />
together into custom-designed 3D structures. Once successful,<br />
we may be able to generate extended structures with<br />
nanometre scale precision. This would open up applications<br />
in molecular computing with nanometre scale circuits.<br />
Should we prove successful in generating periodic structures<br />
in three dimensions, the ability to host other biomolecules<br />
Equivalent for<br />
A, B, C, or D digest<br />
could allow the tetrahedral to act as scaffolds for protein<br />
crystallisation. This in turn could facilitate the artificial<br />
crystallisation of proteins, which have failed to generate<br />
crystals using conventional techniques.<br />
This is exciting new technology with many potential applications<br />
and the team is seeking commercial input and<br />
support to develop specific products in the various areas of<br />
interest. We would welcome any interest from commercial<br />
partners with expertise and vision to develop products in the<br />
above areas of drug delivery, biocomputing and protein<br />
crystallisation fields. The inventors are dedicated to enhancing<br />
the value of the technology by understanding and refining<br />
the method of production. If you are interested and would<br />
like further information on this technology or wish to meet<br />
or discuss the invention with the inventors, please do not<br />
hesitate to contact <strong>Isis</strong> <strong>Innovation</strong> Ltd.<br />
Contact<br />
Dr Goslik Schepers<br />
Life Sciences Project Manager<br />
T 01865 280844<br />
Equivalent for<br />
E or F digest<br />
E goslik.schepers@isis.ox.ac.uk<br />
W www.isis-innovation.com<br />
8
VASTox plc<br />
Spin-out<br />
At present there is no cure for either Duchenne or Becker<br />
muscular dystrophy. To date treatment consists of extreme<br />
physical therapy, to avoid tightening of the muscles, and<br />
spinal surgery to treat resulting scoliosis. Steroids can be<br />
used in an attempt to slow the disease progression.<br />
Also gene therapy approaches to this problem have been<br />
investigated but to date they have not been successful.<br />
VASTox PLC, a spin-out from the Department of Chemistry,<br />
listed recently on the AIM market of the London Stock<br />
Exchange. VASTox, an acronym for Value Added Screening<br />
Technologies Oxford, is a chemical genomics business that<br />
offers unique drug discovery and toxicology services to the<br />
pharmaceutical industry as well as developing a new<br />
strategy for drug discovery. Based on the work of Professor<br />
Steve Davies and Dr Andy Mulvaney, the company utilises<br />
zebrafish embryonic cells and fruit flies to assess the<br />
suitability of chemical compounds to be developed as<br />
drugs.<br />
Traditionally, pharmaceutical companies have used a ‘Geneto-Screen’<br />
approach, whereby genomics technologies are<br />
employed to find new targets for drugs to treat human<br />
disease. Once the targets are located, vast numbers of<br />
chemical compounds are screened to identify drug prototypes<br />
that modulate the disease target. However, this<br />
approach has been proven largely ineffective except for a<br />
handful of new drug launches.<br />
VASTox’s ‘Screen-to-Gene’ approach reverses this process.<br />
Rather than starting with the disease, clients’ chemical<br />
libraries are probed in phenotypic screens, which allows the<br />
rapid and simultaneous identification of both the molecular<br />
targets for human disease as well as a suitable drug prototype.<br />
The Oxford researchers have<br />
identified a promoter of the<br />
production of utrophin,<br />
which is both highly<br />
regulated and expressed in a<br />
wide range of tissues<br />
Exciting new research in Professor Kay Davies’ lab has<br />
focused on the possibility of compensating for the loss of<br />
functional dystrophin by up-regulating a related protein<br />
named utrophin. The Oxford researchers have identified a<br />
promoter of the production of utrophin, which is both highly<br />
regulated and expressed in a wide range of tissues, and<br />
Professor Kay Davies working together with Professor Steve<br />
Davies has shown that this biological target of the utrophin<br />
promoter is druggable. That is, they have identified classes<br />
of small molecules (chemicals) that significantly up-regulate<br />
the utrophin gene and these ‘hits’ have been externally<br />
validated by a third party. With this work in the background,<br />
VASTox will now seek to find chemicals that can be used as<br />
pharmaceutical agents to increase the expression of<br />
utrophin in people suffering from the disease.<br />
Additionally, VASTox has licensed technology from <strong>Isis</strong> which<br />
will enable it to continue the research programme begun in<br />
the MRC funded laboratory of Professor Kay Davies at the<br />
University of Oxford. This programme is aimed at finding a<br />
treatment for the muscle wasting disorders of Duchenne<br />
Muscular Dystrophy and the milder form of Becker Muscular<br />
Dystrophy both of which are caused by a mutation in the<br />
dystrophin gene.<br />
Contact<br />
Dr Richard Middleton and Dr James Hamilton<br />
Life Science Project Managers<br />
T 01865 280847 and 2808<strong>43</strong><br />
E richard.middleton@isis.ox.ac.uk and<br />
james.hamilton@isis.ox.ac.uk<br />
W www.isis-innovation.com<br />
9
Diagnostic for Myasthenia Gravis<br />
Licence deal signed with Athena Diagnostics Inc.<br />
Myasthenia Gravis is a disease which causes muscle weakness<br />
and fatigue without general tiredness. It is described as an<br />
autoimmune disease in that the immune system (or defence<br />
mechanism) of the body has started to treat a normal part<br />
of the body as being foreign – in this case the nerve-muscle<br />
junction.<br />
MuSK<br />
Acetylcholine<br />
receptors<br />
Most people who suffer from this disease have formed an<br />
immune response against a particular molecule on the<br />
surface of the muscle called the Acetyl Choline Receptor<br />
(see diagram). The body’s autoimmune response leads to<br />
loss of this molecule leading to the symptoms of muscle weakness<br />
and fatigue. It can even cause death if the breathing and<br />
swallowing muscles are badly affected.<br />
Nerve<br />
Dr McConville and Professor<br />
Vincent were able to develop a<br />
quick and accurate blood test<br />
that could help the doctors<br />
Muscle<br />
In mysathenia gravis, the patient’s immune response attacks the muscle<br />
surface where acetylcholine receptors and MuSK are situated.<br />
identify these patients and<br />
treat them effectively<br />
Professor Angela Vincent of the Weatherall Institute for<br />
Molecular Medicine at Oxford University and Dr Werner<br />
Hoch of the Max Planck Institute in Tuebingen, Germany,<br />
studied those patients who had the symptoms of<br />
Myasthenia Gravis and yet were not producing an immune<br />
response to the Acetyl Choline Receptor. They found that in<br />
these cases the immune response was to a different<br />
molecule at the nerve-muscle junction called MuSK. With Dr<br />
McConville, a Wellcome Trust supported clinical training<br />
fellow, Professor Vincent was able to develop a quick and<br />
accurate blood test that could help the doctors identify<br />
these patients and treat them effectively. <strong>Isis</strong> recently signed<br />
a royalty-bearing licence agreement with the Worcester,<br />
Massachusetts company Athena Diagnostics, Inc. to market<br />
and carry out the test. Athena is the leading provider of<br />
advanced neurological diagnostic assays in the United<br />
States of America and <strong>Isis</strong> is pleased to have entered into<br />
this partnership with them.<br />
Contact<br />
Dr Richard Middleton<br />
Life Sciences Project Manager<br />
T 01865 280847<br />
E richard.middleton@isis.ox.ac.uk<br />
W www.isis-innovation.com<br />
10
Vaccines which pack a double punch<br />
<strong>Isis</strong> Project 1444<br />
A vaccination regime that powerfully activates both arms of<br />
the immune system has been developed in the Nuffield<br />
Department of Clinical Medicine in the University of Oxford.<br />
The production of potent cellular, as well as antibody<br />
responses to a single vaccination regime, has long been<br />
sought by immunologists.<br />
In order to combat diseases more effectively, it is desirable<br />
to induce stronger immune responses by vaccination.<br />
However, vaccination methods that generate high level<br />
antibody responses can differ significantly from those that<br />
engender strong cell-mediated or T cell responses. For<br />
example, alum is a useful adjuvant for inducing antibodies<br />
but generates weak or negligible CD8 + T cell responses. In<br />
contrast, heterologous prime-boost immunisation methods<br />
have induced strong T cell responses in humans, but only<br />
minimal antibody responses; whereas immune protection<br />
against many diseases can be mediated by either T cells or<br />
antibodies at sufficient levels, and optimal protection may<br />
be achieved by inducing strong responses of both types.<br />
Unfortunately, no vaccination approach currently exists that<br />
allows strong responses of each type to be generated.<br />
Researchers at the University of Oxford, funded by the<br />
Wellcome Trust, have developed a vaccination regime<br />
whereby a virus is mixed with a material (antigen) that is<br />
intended to induce an antibody response. The virus both stimulates<br />
a cellular response and also enhances (adjuvants) the<br />
antibody response to the co-administered antigen. This result<br />
is in itself surprising, but it has also been found that the type<br />
of virus used affects the type of antibody response obtained.<br />
A strong cellular and antibody response to the same<br />
vaccination regime should provide clinicians with much<br />
more effective vaccines for a number of diseases.<br />
Additionally, many standard vaccines are designed to raise<br />
an antibody response against the surface structures of<br />
infectious agents. Some infectious agents, such as the<br />
influenza virus, have highly variable and rapidly changing<br />
surface components and so new vaccines may be frequently<br />
required – in the case of influenza, on an annual basis. The<br />
cellular immune response can be raised against internal<br />
structures of infectious agents, and these are usually much<br />
less variable. A longer lasting effect complementary to the<br />
antibody effect may be achieved with this new approach.<br />
Some infectious agents, such as<br />
the influenza virus, have highly<br />
variable and rapidly changing<br />
surface components and so new<br />
vaccines may be frequently<br />
required<br />
Another application would be in malaria or HIV vaccine<br />
development where it is likely that very effective vaccines will<br />
need to induce strongly both arms of the immune system. In<br />
addition, combinations of vaccines to different diseases<br />
could also be envisaged as a result of this method. This<br />
would obviously have an impact on the cost of immunisation,<br />
and possibly also compliance. <strong>Isis</strong> has filed a patent on<br />
this method and would like to talk any parties who would be<br />
interested in developing the technology further into the<br />
clinical setting.<br />
Contact<br />
Dr Richard Middleton<br />
Life Sciences Project Manager<br />
T 01865 280847<br />
E richard.middleton@isis.ox.ac.uk<br />
W www.isis-innovation.com<br />
11
Therapeutic Applications of a CC Chemokine<br />
Binding Protein<br />
<strong>Isis</strong> Project 1325<br />
Researchers at the Department of Cardiovascular Medicine<br />
and the Sir William Dunn School of Pathology have identified<br />
a novel way to reduce local and systemic inflammation<br />
following adenovirus gene transfer. The technology exploits<br />
a protein encoded by the vaccinia virus that binds to CC<br />
chemokines, an important class of inflammatory mediators.<br />
Recent experiments have shown that this approach can<br />
significantly reduce atherosclerosis, which is the underlying<br />
cause of heart attacks and strokes. This technology may find<br />
application in the treatment of other inflammatory diseases<br />
including rheumatoid arthritis, inflammatory bowel disease,<br />
asthma and psoriasis.<br />
Chronic inflammatory diseases are characterised by the<br />
continued recruitment of white blood cells called T cells and<br />
macrophages, which can cause tissue damage.<br />
Macrophages secrete signalling molecules called<br />
chemokines that act to recruit more macrophages and T<br />
cells into the site of inflammation. The continued presence<br />
of T cells and macrophages drives the inflammatory disease<br />
process eventually causing joint erosion (in arthritis) and<br />
blocking of major arteries (in atherosclerosis).<br />
Chemokines are an important class of signalling molecule<br />
that are responsible for continued T cell and macrophage<br />
recruitment in inflammatory disease.<br />
There are over 40 identified human chemokines that<br />
mediate their effects on cells by binding to specific cell<br />
surface receptors. These signalling proteins play an important<br />
role in normal host defence by attracting T cells and<br />
macrophages to sites of infection. Several DNA viruses have<br />
evolved mechanisms to limit the action of these signalling<br />
Treatment with the chemokine binding protein (Ad35K) dramatically<br />
reduces the number of macrophages (stained red) in atherosclerotic<br />
plaques. There was no effect on macrophage recruitment in control<br />
experiments (PBS and AdGFP). For more details see Bursill et al. Circulation<br />
2004; 110: 2460-2466.<br />
molecules. The vaccinia virus CC chemokine binding protein<br />
blocks macrophage recruitment by binding to a wide range<br />
of CC chemokines and preventing them from interacting<br />
with their cellular receptors.<br />
Researchers in Oxford have shown that transfer of a<br />
chemokine binding protein from vaccinia virus to a<br />
recombinant adenovirus can significantly reduce the host<br />
immune response at the site of adenovirus gene delivery<br />
and that the circulating levels of CC chemokine binding<br />
protein can significantly reduce the development of atherosclerosis<br />
through reducing macrophage recruitment 1 .<br />
<strong>Isis</strong> <strong>Innovation</strong> is seeking commercial partners to develop<br />
this technology to develop new treatments for inflammatory<br />
disease and to improve the effectiveness of adenoviral gene<br />
transfer technologies.<br />
1. Bursill et al. Circulation 2004; 110: 2460-2466.<br />
This technology may find<br />
application in the treatment of<br />
other inflammatory diseases<br />
including rheumatoid arthritis,<br />
inflammatory bowel disease,<br />
asthma and psoriasis.<br />
Contact<br />
Dr James Hamilton<br />
Life Science Project Manager<br />
T 01865 2808<strong>43</strong><br />
E james.hamilton@isis.ox.ac.uk<br />
W www.isis-innovation.com<br />
12
Spin-outs – growth and change<br />
A round-up of spin-out news<br />
New CEOs<br />
Two spin-outs founded in the millennium year have taken<br />
on new CEOs, reflecting the increased maturity of the<br />
businesses and addressing the next set of growth challenges<br />
that the respective businesses will face.<br />
Oxford Biosensors welcomed Dr David Hawksworth as<br />
CEO in September 2004. David has previously spent many<br />
years with Siemens, Oxford Instruments and associated<br />
companies. He has succeeded Neil Butler, who led the<br />
business ably from start-up through two funding rounds<br />
raising a total of £6.2 million. David graduated with a first<br />
class degree in physics from the University of Bath, and<br />
gained his Materials Science PhD from the University of<br />
Wisconsin where he was later honoured with the<br />
Distinguished Service Award from the College of<br />
Engineering. In 1996 he became the managing director of<br />
the Oxford Instruments / Siemens joint venture Oxford<br />
Magnet Technology, and chaired the Transition Board when<br />
Siemens acquired full control of the business in 2003. The<br />
company had over 700 employees, and during David’s<br />
tenure annual sales increased from £70 million to over<br />
£120 million. Point of care sensors to assess cardiac risk and<br />
risk of renal failure are Biosensors’ leading products. Medical<br />
device approval in the USA is anticipated in early 2005, and<br />
product should be on the market later in the year.<br />
Earlier, in March 2004, Oxford Biosignals welcomed<br />
Matthew Walls as CEO. Biosignals received equity investment<br />
of £3.2 million from Rolls Royce in October 2003, and is a<br />
pioneer in the use of neural net software to provide<br />
automated multi-parameter monitoring in both industrial<br />
and healthcare applications. Matthew spent a number of<br />
years with Zeneca before running venture funded business<br />
Zylepsis. He has succeeded Dr Pauline Hobday who steered<br />
Biosignals through its initial formation and recent funding<br />
round. Oxford Biosignals’ leading product, QUICK<br />
Technology, provides expert on-the-ground, on-the-engine<br />
and on-the-airframe jet engine health monitoring systems.<br />
QUICK acquires data from vibration sensors and shaft<br />
tachometers along with other performance parameters.<br />
Usage of these systems also provides the latest fan trim<br />
balancing capabilities which allows optimum balancing<br />
solutions based on either flight or ground acquired data.<br />
QUICK solutions are readily applied to other gas turbine<br />
plant including in marine and energy applications. Oxford<br />
BioSignals is developing and exploiting the technology<br />
originated by Professor Tarassenko from the Department of<br />
Engineering in the University of Oxford.<br />
IPO News<br />
October saw the successful flotation of Oxford spin-out<br />
VASTox. Founded in February 2003, VASTox raised<br />
£15 million (before expenses) at 135p per share. This valued<br />
the company at £42.3 million. A fuller description of VASTox<br />
is given on Page 9.<br />
At the time of writing flat panel display company<br />
Cambridge Display Technology has filed its registration<br />
documents in anticipation of a Nasdaq IPO. Although not a<br />
spin-out from Oxford, in 2002 CDT acquired the technology<br />
of the Oxford flat panel display spin-out Opsys in a complex<br />
transaction. A successful IPO for CDT will increase the<br />
returns for Opsys investors, so we remain hopeful of good<br />
news from the Fens.<br />
Contact<br />
James Mallinson<br />
Portfolio Manager<br />
T 01865 280903<br />
E james.mallinson@isis.ox.ac.uk<br />
W www.isis-innovation.com<br />
13
<strong>Isis</strong> Angels Network<br />
Investment Meeting 28 th October 2004<br />
A successful presentation meeting was held at the Martin<br />
Wood Lecture Theatre on 28 October 2004 in conjunction<br />
with OION, the Oxford Investment Opportunity Network. An<br />
audience of around 100 business angels heard from three<br />
new <strong>Isis</strong> spin-out businesses, and two introduced by OION,<br />
Risk Decisions, a provider of risk management software, and<br />
Oxsensis, a spin-out from the Rutherford Appleton<br />
Laboratory.<br />
Angela Britton, Private Client Services Partner at Grant<br />
Thornton, gave a brief and informative presentation of<br />
areas where tax planning can contribute substantial value in<br />
Angel-type transactions.<br />
Alan Edwards presented Ori Instruments Ltd, a company<br />
which has been formed to exploit patented novel mechanical<br />
structures, for application in the field of stents. These<br />
structures have been invented and developed by Dr Zhong<br />
You and his team in the Department of Engineering at the<br />
University of Oxford. The new designs can be folded for<br />
deployment using minimally invasive techniques. The first<br />
application for the structures is in high-value implantable<br />
cardiovascular devices, specifically for a Thoracic and<br />
Abdominal Aortic Aneurysm Stent Graft also known as EVAR<br />
(Endovascular Aneurysm Repair). The company is seeking<br />
£1 million to build working prototypes and conduct early trials.<br />
From left to right: Dr David Eastham, <strong>Isis</strong> <strong>Innovation</strong> Ltd; Dr John Gregg,<br />
Oxford RF Sensors; Mr Chris Padbury, Oxford RF Sensors.<br />
Dr Trevor Langley presented Cytox Ltd which has been<br />
formed to commercialise leading research from the<br />
University of Oxford in the field of Alzheimer’s disease. The<br />
business model is based on:<br />
A new understanding of Alzheimer’s disease pathology<br />
providing new drugable targets and methods for<br />
developing therapeutic products.<br />
A blood based diagnostic test, proven in human trials, for<br />
very early detection of Alzheimer’s disease.<br />
Development models and demonstrated proof-ofprinciple<br />
that drugs which regulate cell cycle events can<br />
be used to treat Alzheimer’s.<br />
Dr John Gregg introduced Oxford RF Sensors Ltd. The<br />
company uses radio frequency technology for sensors that<br />
can be used simultaneously to determine both the electrical<br />
and magnetic properties of any material<br />
presented to them. The sensors can be used in a wide<br />
range of applications, typical of which are rotational speed<br />
and position sensing in mechanical applications, oil condition<br />
monitoring and materials recycling. Potential markets<br />
include the automotive and related sectors where stricter<br />
requirements on emissions and fuel consumption require<br />
ever more precise measurements from sensors operating<br />
under extreme environmental issues. The company was<br />
formed in September 2004 by Dr Gregg and has already<br />
generated income from options signed with potential<br />
customers. It expects to grant its first licence of the technology<br />
in early 2005. First round funding of £1 million is<br />
now sought to finance the development of further products<br />
for the automotive and process monitoring markets.<br />
Provisional discussions with major pharmaceutical companies<br />
have already indicated an extremely high level of interest<br />
stemming from the range of new treatments, which might<br />
be developed rapidly, to address this multi-billion dollar<br />
market. £2 million is sought.<br />
Business angels or investment professionals wishing to<br />
obtain further information about these proposals, or wishing<br />
to register with the <strong>Isis</strong> Angels Network, should contact<br />
James Mallinson at <strong>Isis</strong>.<br />
Contact<br />
James Mallinson<br />
Portfolio Manager<br />
T 01865 280903<br />
E james.mallinson@isis.ox.ac.uk<br />
W www.isis-innovation.com<br />
14
Echocardiographic image analysis<br />
<strong>Isis</strong> Projects 1283, 676, 874 and 1095<br />
Ultrasound imaging has tremendous utility in a wide range<br />
of medical imaging applications. Echocardiography benefits<br />
from being easy to use, safe, and generally non-invasive<br />
(apart from injection of contrast agents and cardiac stress<br />
inducing drugs in some specialist examinations). It also<br />
allows image sequences to be acquired in real time with<br />
high spatial resolution.<br />
Researchers at the University of Oxford’s Wolfson Medical<br />
Vision Laboratory, part of the Department of Engineering<br />
Science, in partnership with Mirada Solutions Ltd<br />
(a subsidiary of CTI Molecular Imaging Inc and an Oxford<br />
University spin-out company) have created a portfolio of<br />
intellectual property related to the analysis, motion tracking<br />
and quantification of ultrasound images that is particularly<br />
applicable to functional analysis of the heart and soft tissue<br />
elastography. The resulting work is embedded in a software<br />
application that can assist clinicians in the assessment of<br />
heart performance from echocardiographic images.<br />
Professor Alison Noble, a founding director of the Wolfson<br />
Medical Vision Laboratory, pioneered the work. The thrust<br />
of the Wolfson Medical Vision laboratory’s research involves<br />
the development of 2D and 3D functional image analysis<br />
techniques for quantifying disease progression and regression<br />
and organ function. Professor Noble’s own research interests<br />
are in in-vivo soft tissue analysis. She leads the group’s<br />
research on cardiac image analysis comprising 2D and 3D<br />
echocardiography and cardiac Magnetic Resonance (MR), as<br />
well as breast ultrasound image analysis research. Her group<br />
also works in generic ultrasound image analysis, with<br />
particular interest in ultrasound image segmentation. The<br />
Wolfson Medical Vision Laboratory research is highly<br />
multidisciplinary and prides itself on working closely with<br />
departments in the Oxford University Medical Sciences<br />
Division and Oxford Radcliffe Hospitals NHS Trust.<br />
Echocardiographic diagnosis of Coronary Artery Disease<br />
(CAD) is based on global (whole heart) and regional (wall<br />
segment) assessment of cardiac pumping function. The<br />
accurate assessment of cardiac function is important to<br />
clinical investigations. Performance of the left or right<br />
ventricle assessed via ventricular measurements, such as<br />
chamber dimensions, volume and ejection fraction is<br />
increasingly undertaken in clinical practice. In the presence<br />
of blockages in the coronary arteries, blood supply to the<br />
cardiac muscle is reduced impairing proper contraction and<br />
relaxation.<br />
A typical application is identifying heart muscle that has<br />
become ischemic (deficient in blood) which will become<br />
evident by immediate changes in heart motion, characterised<br />
by changes in (regional) heart motion.<br />
Conventionally, diagnostic parameters are extracted in a<br />
semi-quantitative fashion from echocardiographs by visually<br />
assessing and scoring the motion of segments of the ventricle<br />
walls. Visual assessment is a limitation of the technique<br />
since it requires experienced users to perform the acquisition<br />
and interpretation of the images. A contrast agent can also<br />
be used to enhance the quality of the image, but the<br />
assessment, if visual, still requires similar expertise.<br />
Software tools, based on the inventions presented here,<br />
enables the tracking and analysis of the motion of the left<br />
ventricle (Figure 1) or contrast enhanced images in order to<br />
derive accurate quantitative parameters like regional wall<br />
motion and ejection fraction.<br />
Echocardiographic sequence analysis<br />
– Projects 1283 and 676<br />
These two technologies are newly developed and enhanced<br />
methods for extracting cardiac boundary pixels from<br />
echocardiographic sequences.<br />
There are many instances in which a subject in an image is<br />
moving, and it is necessary to track the subject as it moves<br />
from frame to frame; this movement is known as optical<br />
flow or image velocity. Such measurement of optical flow<br />
may be undertaken to improve the image encoding<br />
efficiency, or allow enhancement of the display of the<br />
movement of some particular tracked part of the image to<br />
assist an observer attempting to interpret the image. Optical<br />
flow determination methods fit into one of three groups:<br />
differential techniques, frequency based methods and<br />
matching techniques.<br />
Medical images present many difficulties in image processing<br />
because of their typically high noise level. This problem is<br />
particularly significant in the tracking of cardiac walls by<br />
15
Figure 1: B-mode long axis frames (a) B-Mode grey level 4 chamber view showing the left ventricle (LV) right ventricle (RV), left and right atria (LA,RA) and the<br />
mitral valve (MV). (b) Traced Endocardial and Epicardial contours.<br />
ultrasound methods, and is compounded by the way in<br />
which cardiac motion varies during the cardiac cycle. Several<br />
means of identifying and tracking cardiac walls in echocardiograms<br />
are conventionally available but have inherent<br />
faults.<br />
The Oxford invention for identifying boundary pixels in<br />
echocardiographic sequences or other ultrasound image<br />
sequences consists of a phase boundary detection stage<br />
followed by an optical flow estimation stage based on block<br />
matching methods. New contributions by Oxford<br />
researchers to the basic computer vision processes have<br />
resulted in a system that is both faster and more robust than<br />
conventional alternatives, delivering information on both<br />
the inner and outer boundaries of the organ.<br />
The system is most beneficial when data is medium to lowcontrast,<br />
when methods for detecting boundaries based on<br />
contrast differences do not work well. Professor Noble said<br />
“In experiments we have done, we have shown that this is<br />
far better than the conventional method which doesn’t use<br />
our novel physics-based approach.”<br />
These methods can be applied to magnetic resonance and<br />
X-ray images as well as ultrasound images for automatic<br />
quantification and analysis.<br />
An image-centric software tool based on these inventions<br />
enables the tracking and analysis of the motion of the left<br />
ventricle in B-mode (Figure 1) or contrast enhanced image<br />
sequences in order to derive accurate quantitative key<br />
parameters like regional wall motion and ejection fraction.<br />
Detection of features in images<br />
– Project 874<br />
This invention relates to an image processing method,<br />
embedded in software, which enables the user to automatically<br />
detect particular features of interest within an image.<br />
The method is particularly useful where the user is attempting<br />
to detect the features in noisy 2D or 3D images, and thus is<br />
particularly useful in medical imaging, for instance using<br />
ultrasound.<br />
The Oxford invention<br />
overcomes the problem by<br />
detecting image features based<br />
on the shape of the intensity<br />
profile of the feature, rather<br />
than just its intensity<br />
Conventional methods for enhancing such noisy images<br />
have relied on examining the intensity of the image, for<br />
instance by smoothing the intensity to reduce noise or by<br />
setting a detection threshold based on amplitude.<br />
However, these conventional thresholding techniques suffer<br />
from the difficulty of setting a suitable global threshold for<br />
the image that will reduce noise yet retain all the features of<br />
interest.<br />
16
Figure 2: This screen shot shows a tracked short axis<br />
contour and two displays of quantitative information.<br />
A contraction image showing endocardial velocities<br />
around the contour over time and a plot of cavity<br />
area, both of which are key properties of interest to<br />
the clinician.<br />
Reproduced from the Quamus ® software package (an<br />
automated echocardiographic analysis tool) courtesy<br />
of Mirada Solutions.<br />
The Oxford invention overcomes the problem by detecting<br />
image features based on the shape of the intensity profile of<br />
the feature, rather than just its intensity. This is achieved by<br />
an intensity independent comparison of the intensity profile<br />
across the image with a shape model of features of interest.<br />
Subsequent image processing is further improved using a<br />
feature labelling process to describe the feature’s properties.<br />
The label can include such information as feature orientation,<br />
or velocity of features in image sequences. By setting the<br />
shape model appropriately the invention is adaptable to the<br />
detection of any features corresponding to a step change in<br />
intensity, such as accurate identification of ventricular walls<br />
in echocardiograms.<br />
By applying the same force and distortion to the tissue<br />
during the scan, change in shape during the scan can be<br />
prevented. A mechanical sweep probe, or constraining the<br />
target object and scanning through a window rather than<br />
making direct contact with the skin will achieve this, but the<br />
scan geometry is limited in both cases limiting their usefulness<br />
in clinical diagnosis.<br />
The Oxford development constructs a scan that would have<br />
been produced if there had been no contact between the<br />
skin and the probe. Using an elastic model specified a priori<br />
the method corrects the deformation applied by the probe,<br />
providing more accurate reconstruction and improved<br />
compounding performance.<br />
Improved Ultrasound Imaging<br />
– Project 1095<br />
To create an ultrasound image the ultrasound probe must be<br />
placed in contact with the skin. This contact force, although<br />
small, is sufficient to distort the skin and soft<br />
tissues beneath. Correction of this contact deformation is<br />
important when the tissue geometry must be known<br />
accurately such as in image guided surgery and in 3D ultrasound<br />
where several 2D images are acquired at different<br />
positions in a volume of tissue. The tissue will only be<br />
accurately reconstructed if its shape is the same in each scan.<br />
Combining or compounding these scans makes an assumption<br />
of constant tissue shape, but if the tissue has been distorted<br />
differently in each scan direct compounding of the<br />
data sets leads to a blurred image.<br />
Unusually, the inventions presented here exist in an implemented<br />
software form (Figure 2), the result of collaboration<br />
between Oxford University and Mirada Solutions. This work<br />
is covered in four patent applications and <strong>Isis</strong> <strong>Innovation</strong> is<br />
currently seeking partners to exploit this technology.<br />
Contact<br />
Dr David Churchman<br />
Project Manager Physical Group<br />
T 01865 280857<br />
E david.churchman@isis.ox.ac.uk<br />
W www.isis-innovation.com<br />
17
Brain connectivity mapping<br />
<strong>Isis</strong> Project 1341<br />
A new and simple method that allows the creation of a<br />
dataset by mapping MRI brain scans of individuals with<br />
brain disorders has been developed and can be used to<br />
determine a pattern of connectivity for certain conditions<br />
such as schizophrenia enabling a better, more accurate<br />
diagnosis of the condition and therefore an improvement in<br />
treatment targeting accuracy and outcome.<br />
The unique connectivity pattern of a brain region<br />
determines the type of information available to it, and<br />
hence influences its function. Defining these patterns<br />
enhances our knowledge of human brain architecture and<br />
function. Non-invasive in vivo definition of brain<br />
connectivity patterns complements functional imaging<br />
and provides new understanding of disorders associated<br />
with developmental or regional alterations of brain<br />
connectivity. There are extensions to this approach to<br />
clinically important issues. As an example, brain<br />
connectivity problems are important in developmental<br />
and acquired brain disorders.<br />
Researchers working within the University of Oxford Clinical<br />
Neurology Department have developed a technique that is<br />
able to provide non-invasive identification of boundaries<br />
between major nuclei in a patient undergoing surgery,<br />
thereby improving both targeting accuracy and outcomes.<br />
The invention relates to mapping the connectivity of the<br />
brain’s nervous system in a human and uses imaging data<br />
derived from magnetic resonance imaging. New computer<br />
methods derive the anatomical connectivity patterns and<br />
analyse the structure of the nervous system.<br />
Testing the hypothesis that changes in fronto-thalamic<br />
circuitry i.e. thalamic dysfunction is a factor in schizophrenia,<br />
becomes a reality using this methodology. Impairments in<br />
cortico-cortical connectivity are found in individuals with<br />
learning disabilities.<br />
The new method allows a quantitative approach to the<br />
differences so that actual variations in learning abilities and<br />
performance can be determined. At present localisation in<br />
stereotactic neurosurgery or deep brain stimulation of<br />
specific thalamic nuclei in movement disorders remains<br />
difficult. This approach to grey matter segmentation has the<br />
potential to improve targeting accuracy and outcomes.<br />
Thalamus – connectivity pattern dataset.<br />
The invention relates to<br />
mapping the connectivity of<br />
the brain’s nervous system in a<br />
human, and uses imaging data<br />
derived from magnetic<br />
resonance imaging. New<br />
computer methods derive the<br />
anatomical connectivity<br />
patterns, and analyse the<br />
structure of the nervous system<br />
Contact<br />
Dr David Eastham<br />
Physical Sciences Project Manager<br />
T 01865 280855<br />
E david.eastham@isis.ac.ox.uk<br />
W www.isis-innovation.com<br />
18
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Published by <strong>Isis</strong> <strong>Innovation</strong> Ltd The Technology Transfer Company of the University of Oxford<br />
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Design: Franks and Franks<br />
Cover photo: Nancy Kedersha / UCLA / Science Photo Library