01.03.2013 Views

d(GC) - Association of Biotechnology and Pharmacy

d(GC) - Association of Biotechnology and Pharmacy

d(GC) - Association of Biotechnology and Pharmacy

SHOW MORE
SHOW LESS

You also want an ePaper? Increase the reach of your titles

YUMPU automatically turns print PDFs into web optimized ePapers that Google loves.

Current Trends in <strong>Biotechnology</strong> <strong>and</strong> <strong>Pharmacy</strong><br />

Vol. 6 (2) i-iv April 2012, ISSN 0973-8916 (Print), 2230-7303 (Online)<br />

neuronal cell lineages. According to the findings <strong>of</strong><br />

School <strong>of</strong> Dentistry, Cardiff University, the OMLP-PC<br />

line was derived from cells taken from the inside lining<br />

<strong>of</strong> cheeks <strong>of</strong> patients undergoing routine dental<br />

procedures. Tests showed that even small doses <strong>of</strong><br />

the cells could completely inhibit lymphocytes.<br />

Complete inhibition <strong>of</strong> lymphocyte proliferation was<br />

seen at doses as low as 0.001% OMLP-PCs to<br />

responder lymphocytes, while annexin V staining<br />

confirmed that this immunosuppressive effect <strong>and</strong><br />

was not due to the induction <strong>of</strong> lymphocyte apoptosis.<br />

The findings <strong>of</strong> the study, demonstrates for the first<br />

time that OMLP-PC immunomodulation, unlike that<br />

for mesenchymal stem cells, occurs via a dose- <strong>and</strong><br />

HLA II-independent mechanism by the release <strong>of</strong><br />

immunosuppressive soluble factors. The results<br />

suggest that OMLP-PCs are suitable c<strong>and</strong>idates for<br />

allogenic tissue engineering <strong>and</strong> may have wideranging<br />

potential for immune-related therapies, such<br />

as to prevent rejection <strong>of</strong> transplanted organs <strong>and</strong> to<br />

treat the form <strong>of</strong> diabetes resulting from lymphocyte<br />

attack <strong>of</strong> insulin-producing cells., These cells are<br />

extremely powerful <strong>and</strong> <strong>of</strong>fer promise for combating<br />

a number <strong>of</strong> diseases where we just harvest a small<br />

biopsy from inside the mouth.<br />

Y. Harini<br />

Modified Protein May Reduce Heart Attack Damage<br />

Scientists at Department <strong>of</strong> Pathology <strong>and</strong> Lab<br />

Medicine at the University <strong>of</strong> North Carolina modified<br />

a protein in the heart that greatly reduced cell damage<br />

after heart attacks, according to new research. The<br />

modified protein reduced cell damage by 50% in mice<br />

without causing damaging inflammation. These<br />

findings came during research looking at ways to<br />

prevent heart failure induced by heart attacks. The<br />

protein is called focal adhesion kinase (FAK). It<br />

organizes cell structure by triggering various<br />

processes that help the cells stay alive. FAK is<br />

important for basic processes in all cells, <strong>and</strong> it<br />

appears to be important for cell survival, growth <strong>and</strong><br />

migration in a number <strong>of</strong> cell types, but is especially<br />

critical in the heart. In mice with the new SuperFAK<br />

gene, researchers saw a massive activation <strong>of</strong> FAK<br />

after heart attack, <strong>and</strong> not as many heart cells died<br />

compared to unmodified mice. Three days after the<br />

induced heart attack, the SuperFAK mice had<br />

approximately 50% less heart injury than the<br />

unaltered mice. This benefit was maintained for eight<br />

weeks. FAK also plays a role in the development <strong>of</strong> a<br />

number <strong>of</strong> cancers <strong>and</strong> it has been associated with<br />

tumor growth <strong>and</strong> metastases. Some chemotherapy<br />

agents hinder FAK, leaving the heart susceptible to<br />

damage. Progressive cardiac damage is a typical<br />

adverse effect <strong>of</strong> several chemotherapeutic<br />

treatments. In the future, the investigators hope to<br />

develop drugs to target FAK to protect the heart during<br />

chemotherapy or following a heart attack.<br />

J. Aruna Kumari<br />

The Immune System Reacts More Vigorously to<br />

Hydrophobic Nanoparticles<br />

A recent study showed that the degree to which<br />

the immune system reacts to foreign nanoparticles<br />

is directly related to how hydrophobic the particles<br />

are. Underst<strong>and</strong>ing the interactions <strong>of</strong> nanomaterials<br />

with the immune system is essential for the<br />

engineering <strong>of</strong> new macromolecular drug or vaccine<br />

delivery systems. Investigators at Tel Aviv University<br />

Israel fabricated pure gold nanoparticles that were<br />

two nanometers in diameter. In the unmodified state,<br />

the nanoparticles were not recognized by immune<br />

cells. Thus, the effect <strong>of</strong> any change in the surface <strong>of</strong><br />

the particles could be detected. The investigators<br />

manufactured a series <strong>of</strong> gold nanoparticles that<br />

presented a linear increase in hydrophobicity. These<br />

particles were then added to cultures <strong>of</strong> immune<br />

spleen cells (splenocytes) <strong>and</strong> injected into mice.<br />

Results revealed that increased hydrophobicity <strong>of</strong> the<br />

nanoparticle headgroups, caused a linear increase<br />

in immune activity in the cell cultures. Consistent<br />

behavior was observed with in vivo mouse models,<br />

demonstrating the importance <strong>of</strong> hydrophobicity in<br />

immune system activation.<br />

Ch.Parimala<br />

EDUCATION<br />

PhD/Post Doctoral Programs<br />

Admission to Ph.D. Programme for 2012 - 2013:<br />

Applications are invited for admission to Ph.D<br />

programmes in National Institute <strong>of</strong> Plant Genome<br />

Research, New Delhi-110 067, India in the frontier<br />

areas <strong>of</strong> Plant Biology such as, Computational<br />

Biology, Genome Analysis <strong>and</strong> Molecular Mapping,<br />

Molecular Mechanism <strong>of</strong> Abiotic Stress Responses,<br />

Nutritional Genomics, Plant Development <strong>and</strong><br />

Architecture, Plant Immunity, Transgenics for Crop<br />

improvement, Molecular Breeding <strong>and</strong> other<br />

emerging areas based on plant genomics. The<br />

selection is made on the basis <strong>of</strong> interview only. The<br />

selected c<strong>and</strong>idates will be enrolled for Ph.D. program<br />

in academic affiliation with the Jawaharlal Nehru<br />

University, New Delhi. NIPGR will provide shared<br />

ii

Hooray! Your file is uploaded and ready to be published.

Saved successfully!

Ooh no, something went wrong!