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New Colon Cancer Gene Discovered

Date:
July 9, 2003
Source:
Case Western Reserve University
Summary:
Researchers at Case Western Reserve University and University Hospitals of Cleveland report finding a new gene that is switched off early in the development of colon cancer.

Researchers at Case Western Reserve University and University Hospitals of Cleveland report finding a new gene that is switched off early in the development of colon cancer. The gene, called SLC5A8, is inactivated in 60 percent of human colon cancers, according to their paper in the July 8th issue of the Proceedings of the National Academy of Sciences.

"The normal version of the gene suppresses the growth of colon cancer tumors, both in the test tube and when grown in mice," says senior author of the paper, Sanford Markowitz, M.D., a professor in the Ireland Cancer Center and a Howard Hughes investigator at CWRU and UHC. "However, in our study, we found the silencing of this tumor suppressor gene is a common and early event in human colon cancer."

A biochemical process called aberrant methylation turns off the gene. "We have found that we can detect the abnormal methylated SLC5A8 DNA in the blood of certain patients with colon cancer as a marker of the disease,"says Markowitz. This makes the abnormal gene a possible candidate for a new diagnostic test for the early detection of colon cancer, the second leading cause of cancer death in adult Americans.

The researchers also found that the gene transports a mystery substance into the colon cell, by coupling it to the movement of sodium into the cell. "In further studies, we hope to determine the identity of the mystery substance, which could be a potential target for the development of new anti-colon cancer drugs,"says Markowitz.

The research was supported by Public Health Service grants and by the National Colon Cancer Research Alliance.


Story Source:

The above story is based on materials provided by Case Western Reserve University. Note: Materials may be edited for content and length.


Cite This Page:

Case Western Reserve University. "New Colon Cancer Gene Discovered." ScienceDaily. ScienceDaily, 9 July 2003. <www.sciencedaily.com/releases/2003/07/030709063931.htm>.
Case Western Reserve University. (2003, July 9). New Colon Cancer Gene Discovered. ScienceDaily. Retrieved July 30, 2014 from www.sciencedaily.com/releases/2003/07/030709063931.htm
Case Western Reserve University. "New Colon Cancer Gene Discovered." ScienceDaily. www.sciencedaily.com/releases/2003/07/030709063931.htm (accessed July 30, 2014).

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