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DNA Methylation

DNA Methylation

NIH researchers have identified a DNA methylation signature in tumor DNA common to five types of cancer. The signature results from a chemical modification of DNA called methylation, which can control the expression of genes like a dimmer on a light switch. They hope this finding will spur development of a blood test that can be used to diagnose a variety of cancers at early stages.


Credit: Darryl Leja, NHGRI.



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