Bile acid distributions, sex-specificity, and prognosis in colorectal cancer Journal Article


Authors: Cai, Y.; Shen, X.; Lu, L.; Yan, H.; Huang, H.; Gaule, P.; Muca, E.; Theriot, C. M.; Rattray, Z.; Rattray, N. J. W.; Lu, J.; Ahuja, N.; Zhang, Y.; Paty, P. B.; Khan, S. A.; Johnson, C. H.
Article Title: Bile acid distributions, sex-specificity, and prognosis in colorectal cancer
Abstract: Background: Bile acids are known to be genotoxic and contribute to colorectal cancer (CRC). However, the link between CRC tumor bile acids to tumor location, patient sex, microbiome, immune-regulatory cells, and prognosis is not clear. Methods: We conducted bile acid analysis using targeted liquid chromatography–mass spectrometry (LC–MS) on tumor tissues from CRC patients (n = 228) with survival analysis. We performed quantitative immunofluorescence (QIF) on tumors to examine immune cells. Results: Twelve of the bile acids were significantly higher in right-sided colon tumors compared to left-sided colon tumors. Furthermore, in male patients, right-sided colon tumors had elevated secondary bile acids (deoxycholic acid, lithocholic acid, ursodeoxycholic acid) compared to left-sided colon tumors, but this difference between tumors by location was not observed in females. A high ratio of glycoursodeoxycholic to ursodeoxycholic was associated with 5-year overall survival (HR = 3.76, 95% CI = 1.17 to 12.1, P = 0.026), and a high ratio of glycochenodeoxycholic acid to chenodeoxycholic acid was associated with 5-year recurrence-free survival (HR = 3.61, 95% CI = 1.10 to 11.84, P = 0.034). We also show correlation between these bile acids and FoxP3 + T regulatory cells. Conclusions: This study revealed that the distribution of bile acid abundances in colon cancer patients is tumor location-, age- and sex-specific, and are linked to patient prognosis. This study provides new implications for targeting bile acid metabolism, microbiome, and immune responses for colon cancer patients by taking into account primary tumor location and sex. © 2022, The Author(s).
Journal Title: Biology of Sex Differences
Volume: 13
ISSN: 2042-6410
Publisher: Biomed Central Ltd  
Date Published: 2022-10-23
Start Page: 61
Language: English
DOI: 10.1186/s13293-022-00473-9
PUBMED: 36274154
PROVIDER: scopus
PMCID: PMC9590160
DOI/URL:
Notes: Article -- Export Date: 1 November 2022 -- Source: Scopus
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  1. Philip B Paty
    496 Paty
  2. Engjel Muca
    6 Muca