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New Targets for Treatment of Invasive Breast Cancer Identified

by Sreeraman on  August 23, 2009 at 11:11 AM Cancer News
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 New Targets for Treatment of Invasive Breast Cancer Identified
Scientists in the U.S have discovered new targets for the treatment of invasive breast cancer.


A new study, led by Suresh Alahari, PhD, Associate Professor of Biochemistry and Molecular Biology Louisiana State University Health Sciences Center New Orleans, has shown for the first time that a tiny piece of RNA appears to play a major role in the development of invasive breast cancer and identified a gene that appears to inhibit invasive breast cancer.

The LSUHSC researchers are the first to show that miR-27b, a novel microRNA, not only inactivates the ST14 gene which they found suppresses the growth of breast tumour cells, but also that miR-27b stimulates the breast cancer to invade other cells.

MicroRNAs are a new class of small, single-stranded RNA molecules that play an important regulatory role in cell biology.

They bind to target genes and decrease their function. MicroRNAs may act as oncogenes (a gene that contributes to cancer development) or tumor suppressors.

In this study working with a line of human breast cancer cells, Alahari's team found that aggressively invasive breast tumour cells contain a large quantity of miR-27b molecules, while normal cells do not.

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