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Basic Differences Between Human Cancers and Genetically Engineered Mouse Models Identified

by Kathy Jones on December 7, 2013 at 3:49 PM
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 Basic Differences Between Human Cancers and Genetically Engineered Mouse Models Identified

The existing mouse models of cancer have been compared to human cancer samples by researchers from the Fred Hutchinson Cancer Research Center in Seattle.

These genetically engineered mouse models (which usually either overexpress a cancer-causing gene—or "oncogene"—or carry a deletion for a "tumor suppressor" gene) have been extensively used to understand human cancer biology in studies of drug resistance, early detection, metastasis, and cancer prevention, as well as for the preclinical development of novel targeted therapeutics.

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Cancer is a multistep process that involves a complex interplay between genetic and epigenetic alterations. Epigenetic modifications mediate changes in gene expression without altering the DNA sequence. One of those modifications, DNA methylation, was found to be significantly different between mouse models of medulloblastoma and primary medulloblastoma human samples.



Source: Eurekalert
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