Resistant Starch Reduces Glycolysis by HK2 and Suppresses High-fructose Corn Syrup-induced Colon Tumorigenesis

Overview

Journal J Gastroenterol

Specialty Gastroenterology

Date 2024 Aug 14

PMID 39141107

Authors

Ying Zhang

Weiyi Shen

Zhehang Chen

Jiamin He

Lijun Feng

Lan Wang

Shujie Chen

Affiliations

Soon will be listed here.

Abstract

Background: The intake of high-fructose corn syrup (HFCS) may increase the risk of colorectal cancer (CRC). This study aimed to explore the potential effects and mechanisms of resistant starch (RS) in HFCS-induced colon tumorigenesis.

Methods: The azoxymethane/dextran sodium sulfate (AOM/DSS) and Apc mice models were used to investigate the roles of HFCS and RS in CRC in vivo. An immunohistochemistry (IHC) staining analysis was used to detect the expression of proliferation-related proteins in tissues. 16S rRNA sequencing for microbial community, gas chromatography for short-chain fatty acids (SCFAs), and mass spectrometry analysis for glycolysis products in the intestines were performed. Furthermore, lactic acid assay kit was used to detect the glycolysis levels in vitro.

Results: RS suppressed HFCS-induced colon tumorigenesis through reshaping the microbial community. Mechanistically, the alteration of the microbial community after RS supplement increased the levels of intestinal SCFAs, especially butyrate, leading to the suppression of glycolysis and CRC cell proliferation by downregulating HK2.

Conclusions: Our study identified RS as a candidate of protective factors in CRC and may provide a potential target for HFCS-related CRC treatment.

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