Advances and Applications in Bioinformatics and Chemistry
Open access peer-reviewed scientific and medical journals.
Dove Medical Press is now a member of the Open Access Initiative
An Author's Guide
A guide to help authors get their paper published.
Support Open Access and Dove Press
Promotional Article Monitoring - further details
Favored Author Program
Real benefits for authors, including fast-track processing of papers.
A network biology approach evaluating the anticancer effects of bortezomib identifies SPARC as a therapeutic target in adult T-cell leukemia cells
(11332) Total Article Views
Authors: Junko H Ohyashiki, Ryoko Hamamura, Chiaki Kobayashi, Yu Zhang, Kazuma Ohyashiki
Published Date October 2008
Volume 2008:1 Pages 85 - 98
Junko H Ohyashiki1, Ryoko Hamamura2, Chiaki Kobayashi2, Yu Zhang2, Kazuma Ohyashiki2
1Intractable Immune System Disease Research Center, Tokyo Medical University, Tokyo, Japan; 2First Department of Internal Medicine, Tokyo Medical University, Tokyo, Japan
Abstract: There is a need to identify the regulatory gene interaction of anticancer drugs on target cancer cells. Whole genome expression profiling offers promise in this regard, but can be complicated by the challenge of identifying the genes affected by hundreds to thousands of genes that induce changes in expression. A proteasome inhibitor, bortezomib, could be a potential therapeutic agent in treating adult T-cell leukemia (ATL) patients, however, the underlying mechanism by which bortezomib induces cell death in ATL cells via gene regulatory network has not been fully elucidated. Here we show that a Bayesian statistical framework by VoyaGene® identified a secreted protein acidic and rich in cysteine (SPARC) gene, a tumor-invasiveness related gene, as a possible modulator of bortezomib-induced cell death in ATL cells. Functional analysis using RNAi experiments revealed that inhibition of the expression SPARC by siRNA enhanced the apoptotic effect of bortezomib on ATL cells in accordance with an increase of cleaved caspase 3. Targeting SPARC may help to treat ATL patients in combination with bortezomib. This work shows that a network biology approach can be used advantageously to identify the genetic interaction related to anticancer effects.
Keywords: network biology, adult T cell leukemia, bortezomib, SPARC
Cannotea Citeulike Del.icio.us Facebook LinkedIn Twitter
Readers of this article also read:
"I was impressed at the rapidity of publication from submission to final acceptance." Dr Edwin Thrower, PhD, Yale University.
- Evolution of a domain conserved in microtubule-associated proteins of eukaryotes
- Overview of the LDL receptor: relevance to cholesterol metabolism and future approaches for the treatment of coronary heart disease
- Is gene activity in plant cells affected by UMTS-irradiation? A whole genome approach
- Discrimination between biological interfaces and crystal-packing contacts