Gut Microbiome and Bile Acid Interactions: Mechanistic Implications for Cholangiocarcinoma Development, Immune Resistance, and Therapy

Authors

• Nan Wu, Department of Microbiology and Immunology, Virginia Commonwealth University and Richmond Veterans Affairs Medical Center, Richmond, Virginia.
• Sareh Bayatpour, Department of Microbiology and Immunology, Virginia Commonwealth University and Richmond Veterans Affairs Medical Center, Richmond, Virginia.
• Phillip B. Hylemon, Department of Microbiology and Immunology, Virginia Commonwealth University and Richmond Veterans Affairs Medical Center, Richmond, Virginia; Stravitz-Sanyal Institute for Liver Disease and Metabolic Health, School of Medicine, Virginia Commonwealth University, Richmond, Virginia.
• Sayed O. Aseem, Stravitz-Sanyal Institute for Liver Disease and Metabolic Health, School of Medicine, Virginia Commonwealth University, Richmond, Virginia; Division of Gastroenterology, Hepatology and Nutrition, Department of Internal Medicine, Medical College of Virginia, Virginia Commonwealth University, Richmond, Virginia.
• Paul J. Brindley, Department of Microbiology, Immunology and Tropical Medicine, and Research Center for Neglected Diseases of Poverty, School of Medicine and Health Sciences, George Washington University, Washington, District of Columbia.
• Huiping Zhou, Department of Microbiology and Immunology, Virginia Commonwealth University and Richmond Veterans Affairs Medical Center, Richmond, Virginia; Stravitz-Sanyal Institute for Liver Disease and Metabolic Health, School of Medicine, Virginia Commonwealth University, Richmond, Virginia. Electronic address: huiping.zhou@vcuhealth.org.

Document Type

Journal Article

Publication Date

3-1-2025

Journal

The American journal of pathology

Volume

195

Issue

3

DOI

10.1016/j.ajpath.2024.11.004

Abstract

Cholangiocarcinoma (CCA) is a rare but highly malignant carcinoma of bile duct epithelial cells with a poor prognosis. The major risk factors of CCA carcinogenesis and progression are cholestatic liver diseases. The key feature of primary sclerosing cholangitis and primary biliary cholangitis is chronic cholestasis. It indicates a slowdown of hepatocyte secretion of biliary lipids and metabolites into bile as well as a slowdown of enterohepatic circulation (bile acid recirculation) of bile acids with dysbiosis of the gut microbiome. This leads to enterohepatic recirculation and an increase of toxic secondary bile acids. Alterations of serum and liver bile acid compositions via the disturbed enterohepatic circulation of bile acids and the disturbance of the gut microbiome then activate a series of hepatic and cancer cell signaling pathways that promote CCA carcinogenesis and progression. This review focuses on the mechanistic roles of bile acids and the gut microbiome in the pathogenesis and progression of CCA. It also evaluates the therapeutic potential of targeting the gut microbiome and bile acid-mediated signaling pathways for the therapy and prophylaxis of CCA.

APA Citation

Wu, Nan; Bayatpour, Sareh; Hylemon, Phillip B.; Aseem, Sayed O.; Brindley, Paul J.; and Zhou, Huiping, "Gut Microbiome and Bile Acid Interactions: Mechanistic Implications for Cholangiocarcinoma Development, Immune Resistance, and Therapy" (2025). GW Authored Works. Paper 6930.
https://hsrc.himmelfarb.gwu.edu/gwhpubs/6930

Department

Microbiology, Immunology, and Tropical Medicine