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New Molecule Discovered That Helps Gastric Cancer Patients Survive Longer

by Bidita Debnath on  September 8, 2015 at 11:53 PM Cancer News   - G J E 4
Researchers at Southern Medical University have discovered a molecule that can help clinicians predict survival time of people afflicted with gastric cancer, a significant health problem in developing countries which is typically associated with late-stage diagnosis and high mortality.
 New Molecule Discovered That Helps Gastric Cancer Patients Survive Longer
New Molecule Discovered That Helps Gastric Cancer Patients Survive Longer
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Patients whose primary gastric cancer lesions express high levels of microRNA 506 have significantly longer survival times compared to patients with low miR-506 expression, the findings showed.

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In addition, miR-506 suppresses tumor growth, blood vessel formation, and metastasis or cancer spread, the study noted.

"Our study suggests that miR-506 acts as a tumor suppressor in gastric cancer," explained lead investigator Xin Song from Southern Medical University in Guangzhou, China.

"Epithelial-to-mesenchymal transition (EMT) is an important process that enables cancer cells to invade their surroundings and to metastasize," Song said.

"Our study presents evidence that miR-506 is a potent inhibitor of EMT," Song noted.

The study involved 84 patients who had undergone cancer surgery.

When samples were divided into groups with miR-506 levels above and below the mean, survival was found to be significantly longer in patients with high miR-506 expression.

The investigators next examined miR-506 expression in cells from seven gastric cancer cell lines.

They found that gastric cancer cells had lower levels of miR-506 than normal stomach tissue.

The findings appeared in The American Journal of Pathology.

Source: IANS
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