23.11.2012 Views

Chapter 2 - University of British Columbia

Chapter 2 - University of British Columbia

Chapter 2 - University of British Columbia

SHOW MORE
SHOW LESS

Create successful ePaper yourself

Turn your PDF publications into a flip-book with our unique Google optimized e-Paper software.

26. Buys TPH, Chari R, Lee E, Zhang M, MacAulay C, Lam S, Lam WL, Ling V. (2007)<br />

Genetic changes in the evolution <strong>of</strong> multidrug resistance for cultured human ovarian cancer<br />

cells. Genes, Chromosomes and Cancer, 46(12):1069-79.<br />

Drug resistance is a common problem for cancer patients treated by chemotherapeutics. One<br />

<strong>of</strong> the mechanisms <strong>of</strong> resistance is through the multi-drug resistance phenotype which is <strong>of</strong>ten<br />

associated with the activity <strong>of</strong> ATP-binding cassette (ABC) transporters. In this study, using an<br />

ovarian cancer cell line exposed to increasing concentrations <strong>of</strong> vincristine to derive drug<br />

resistant derivatives, the genetic and gene expression pr<strong>of</strong>iles were compared between these<br />

resistant derivatives and the original cancer cell line. It was found that in while initial resistant<br />

derivatives (lines exposed to lower concentration <strong>of</strong> drug) harbored copy number and gene<br />

expression increase <strong>of</strong> ABCC1 and ABCC6, latter resistant derivatives (lines exposed to higher<br />

concentration <strong>of</strong> drug) did not have the increase in ABCC1 and ABCC6, but had an increase <strong>of</strong><br />

ABCB, suggesting the drug resistance phenotype may be a dynamic process.<br />

27. Coe BP, Lockwood WW, Girard L, Chari R, Minna JD, MacAulay C, Lam S, Gazdar AF,<br />

Lam WL. (2006) Differential regulation <strong>of</strong> cell cycle pathways in small cell and non-small cell<br />

lung cancer. <strong>British</strong> Journal <strong>of</strong> Cancer, (12):1927-35.<br />

Small cell lung cancer (SCLC) and non-small cell lung cancer (SCLC) are the two major cell<br />

types <strong>of</strong> lung cancer. While pathologically they can be distinguished, the molecular basis <strong>of</strong><br />

these two cancer types is not well understood. In this study, a whole genome integrative<br />

genetic and gene expression comparison <strong>of</strong> NSCLC and SCLC was performed and differential<br />

regulation <strong>of</strong> cell cycle pathways was identified. Specifically, NSCLC is primarily deregulated at<br />

the receptor level while SCLC is primarily deregulated at the nuclear transcription factor level.<br />

S<strong>of</strong>tware, analysis approaches, and databases<br />

28. Tsui IFL, Chari R, Buys TPH, Lam WL. (2007) Public databases and s<strong>of</strong>tware for the<br />

pathway analysis <strong>of</strong> cancer genomes. Cancer Informatics, 3:389-407.<br />

181

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

Saved successfully!

Ooh no, something went wrong!