Bile acid dysregulation, gut dysbiosis, and gastrointestinal cancer

Jessica Tsuei, Thinh Chau, David Mills, Yu-Jui Yvonne Wan

Research output: Contribution to journalArticle

38 Citations (Scopus)

Abstract

Because of increasingly widespread sedentary lifestyles and diets high in fat and sugar, the global diabetes and obesity epidemic continues to grow unabated. A substantial body of evidence has been accumulated which associates diabetes and obesity to dramatically higher risk of cancer development, particularly in the liver and gastrointestinal tract. Additionally, diabetic and obese individuals have been shown to suffer from dysregulation of bile acid (BA) homeostasis and dysbiosis of the intestinal microbiome. Abnormally elevated levels of cytotoxic secondary BAs and a pro-inflammatory shift in gut microbial profile have individually been linked to numerous enterohepatic diseases including cancer. However, recent findings have implicated a detrimental interplay between BA dysregulation and intestinal dysbiosis that promotes carcinogenesis along the gut–liver axis. This review seeks to examine the currently investigated interactions between the regulation of BA metabolism and activity of the intestinal microbiota and how these interactions can drive cancer formation in the context of diabesity. The precarcinogenic effects of BA dysregulation and gut dysbiosis including excessive inflammation, heightened oxidative DNA damage, and increased cell proliferation are discussed. Furthermore, by focusing on the mediatory roles of BA nuclear receptor farnesoid x receptor, ileal transporter apical sodium dependent BA transporter, and G-coupled protein receptor TGR5, this review attempts to connect BA dysregulation, gut dysbiosis, and enterohepatic carcinogenesis at a mechanistic level. A better understanding of the intricate interplay between BA homeostasis and gut microbiome can yield novel avenues to combat the impending rise in diabesity-related cancers.

Original languageEnglish (US)
Pages (from-to)1489-1504
Number of pages16
JournalExperimental Biology and Medicine
Volume239
Issue number11
DOIs
StatePublished - Nov 12 2014

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Dysbiosis
Gastrointestinal Neoplasms
Bile Acids and Salts
Medical problems
Neoplasms
Carcinogenesis
Homeostasis
Obesity
Sedentary Lifestyle
Cell proliferation
High Fat Diet
Cytoplasmic and Nuclear Receptors
Nutrition
G-Protein-Coupled Receptors
Metabolism
Sugars
Liver
DNA Damage
Gastrointestinal Tract
Fats

Keywords

  • apical sodium dependent bile acid transporter
  • bacterial translocation
  • bile acids
  • diabetes
  • farnesoid X receptor
  • G-protein-coupled BA receptor 1 (TGR5)
  • gastrointestinal carcinogenesis
  • gut dysbiosis
  • Gut–liver axis
  • inflammation
  • intestinal microbiota
  • metabolic syndrome
  • obesity
  • polymorphism

ASJC Scopus subject areas

  • Biochemistry, Genetics and Molecular Biology(all)
  • Medicine(all)

Cite this

Bile acid dysregulation, gut dysbiosis, and gastrointestinal cancer. / Tsuei, Jessica; Chau, Thinh; Mills, David; Wan, Yu-Jui Yvonne.

In: Experimental Biology and Medicine, Vol. 239, No. 11, 12.11.2014, p. 1489-1504.

Research output: Contribution to journalArticle

Tsuei, Jessica ; Chau, Thinh ; Mills, David ; Wan, Yu-Jui Yvonne. / Bile acid dysregulation, gut dysbiosis, and gastrointestinal cancer. In: Experimental Biology and Medicine. 2014 ; Vol. 239, No. 11. pp. 1489-1504.
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