Multiomic analysis of familial adenomatous polyposis reveals molecular pathways associated with early tumorigenesis

Edward D. Esplin, Casey Hanson, Si Wu, Aaron M. Horning, Nasim Barapour, Stephanie A. Nevins, Lihua Jiang, Kévin Contrepois, Hayan Lee, Tuhin K. Guha, Zheng Hu, Rozelle Laquindanum, Meredith A. Mills, Hassan Chaib, Roxanne Chiu, Ruiqi Jian, Joanne Chan, Mathew Ellenberger, Winston R. Becker, Bahareh BahmaniAziz Khan, Basil Michael, Annika K. Weimer, D. Glen Esplin, Jeanne Shen, Samuel Lancaster, Emma Monte, Thomas V. Karathanos, Uri Ladabaum, Teri A. Longacre, Anshul Kundaje, Christina Curtis, William J. Greenleaf, James M. Ford, Michael P. Snyder

Research output: Contribution to journalArticlepeer-review

Abstract

Familial adenomatous polyposis (FAP) is a genetic disease causing hundreds of premalignant polyps in affected persons and is an ideal model to study transitions of early precancer states to colorectal cancer (CRC). We performed deep multiomic profiling of 93 samples, including normal mucosa, benign polyps and dysplastic polyps, from six persons with FAP. Transcriptomic, proteomic, metabolomic and lipidomic analyses revealed a dynamic choreography of thousands of molecular and cellular events that occur during precancerous transitions toward cancer formation. These involve processes such as cell proliferation, immune response, metabolic alterations (including amino acids and lipids), hormones and extracellular matrix proteins. Interestingly, activation of the arachidonic acid pathway was found to occur early in hyperplasia; this pathway is targeted by aspirin and other nonsteroidal anti-inflammatory drugs, a preventative treatment under investigation in persons with FAP. Overall, our results reveal key genomic, cellular and molecular events during the earliest steps in CRC formation and potential mechanisms of pharmaceutical prophylaxis.

Original languageEnglish
Pages (from-to)1737-1753
Number of pages17
JournalNature Cancer
Volume5
Issue number11
Early online dateSep 30 2024
DOIs
StateE-pub ahead of print - Sep 30 2024
Externally publishedYes

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