What question did this study set out to answer?

This research aims to investigate how chronic inflammation contributes to long-term cancer risk through epigenetic mechanisms.

July 30, 2026Open Access

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Epigenetic memory of inflammation as a driver of cancer risk: insights from Colitis

AMAlok MishraThe University of Texas MD Anderson Cancer Center UKUmar Khalid KhanIndian Institute of Technology Kanpur BABushra AteeqIndian Institute of Technology Kanpur

Key Points

This research aims to investigate how chronic inflammation contributes to long-term cancer risk through epigenetic mechanisms.
Investigated intestinal stem cells during colitis to assess epigenetic changes.
Examined how these changes prime cells for tumor development.
Analyzed chromatin states in relation to genetic factors.
Intestinal stem cells exhibit durable epigenetic memory post-colitis, increasing susceptibility to cancer.
Changes in chromatin states suggest a new mechanism for cancer initiation beyond genetic mutations.
Findings highlight the potential for developing biomarkers and therapies focusing on epigenetic memory.

Abstract

Chronic inflammation increases cancer risk, yet the mechanisms linking transient injury to long-term susceptibility remain elusive. Nagaraja et al 1 demonstrate that intestinal stem cells retain durable epigenetic memory of colitis, thereby priming tumorigenesis. This discovery reframes cancer initiation as a consequence of heritable chromatin states, introducing an additional regulatory dimension that operates alongside, and beyond, genetic aberrations. By positioning inflammation induced epigenetic memory as a novel axis for cancer predisposition, this study open avenues for biomarker development and preventive therapeutic strategies.

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Epigenetic memory of inflammation as a driver of cancer risk: insights from Colitis

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Abstract

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