Chronic inflammation can raise a person’s risk of cancer, and a new study reveals key details about how that might happen in the gut and points to better ways to identify and reduce risk. Scientists at the Broad Institute and Harvard University have revealed in mice that after colitis (chronic intestinal inflammation), seemingly healed gut tissues may retain the memory of earlier inflammation through molecular “scars” that make it easier for cancer to take hold later on. These memories are encoded as changes in the epigenome that are handed down from cell to cell through many generations of cell division, with long-lasting effects on gene activity that can later drive tumor growth.
This article was originally published on MedicalXpress.com
