Gene expression profile of metastatic colon cancer cells resistant to cisplatin-induced apoptosis

  • Authors: Sergio Huerta, Diane M. Harris, Ali Jazirehi, Benjamin Bonavida, David Elashoff, Edward H. Livingston, David Heber
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  • Published online on: Saturday, March 1, 2003
  • Pages: 663-670
  • DOI: 10.3892/ijo.22.3.663

Abstract

The current chemotherapeutic modalities for advanced colorectal cancer are limited. DNA-platinating drugs such as cisplatin have poor efficacy against this malignancy. The aim of this study was to identify genes that render survival advantage after cisplatin treatment in metastatic colon cancer. Cell lines SW480 (primary colon cancer) and SW620 (metastatic lesion from the same patient) were obtained from ATCC. Apoptosis was measured by FACS analysis of cisplatin-treated (0.01-10 µg/ml) and untreated cells. Simultaneous analysis of ≈1200 cDNAs was performed by microarray technique on untreated and treated cells from lines. Microarray results were confirmed by RT-PCR. The SW620 cell line was more resistant to apoptosis induced by cisplatin. Western blot analysis revealed equal expression of pro-caspases 3, 8, and 9 in both cell lines. Microarray analysis identified 15 genes and 9 expressed sequence tags (ESTs) significantly altered both by cell type (metastatic vs. non-metastatic) and treatment vs. non-treatment. Several of these transcripts are well-characterized genes including MCT, GAD67, P19, GSTM3, Cyclin D1, ATM, and CO-029 that have been implicated in various malignancies. In the present study, we have identified a set of genes responsible for apoptosis resistance following treatment with cisplatin in the late stages of carcinogenesis. Targeting these genes may increase chemotherapy effectiveness in advanced colon cancer and reduce toxicity in normal tissue.
Journal Cover

March 2003
Volume 22 Issue 3

Print ISSN: 1019-6439
Online ISSN:1791-2423

2012 Impact Factor: 2.657
Ranked #31/196 Oncology
(total number of cites)

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APA
Huerta, S., Harris, D., Jazirehi, A., Bonavida, B., Elashoff, D., Livingston, E., & Heber, D. (2003). Gene expression profile of metastatic colon cancer cells resistant to cisplatin-induced apoptosis. International Journal of Oncology, 22(3), 663-670.
MLA
Huerta, Harris, Jazirehi, Bonavida, Elashoff, Livingston, and David Heber. "Gene expression profile of metastatic colon cancer cells resistant to cisplatin-induced apoptosis." International Journal of Oncology International Journal of Oncology 22.3 (2003): 663-670.
Chicago
Huerta, Harris, Jazirehi, Bonavida, Elashoff, Livingston, and David Heber. "Gene expression profile of metastatic colon cancer cells resistant to cisplatin-induced apoptosis." International Journal of Oncology International Journal of Oncology 22 no. 3 (2003): 663-670.