Intestinal microbiota affects the progression of colorectal cancer by participating in the host intestinal arginine catabolism

Abstract excerpt

Arginine plays a critical role in colorectal cancer (CRC) progression. We find that arginine catabolism is reduced in the intestinal microbiota of patients with CRC but increased in tumor tissue. We further verify that Escherichia coli can consume arginine via the arginine succinyltransferase (AST) pathway, and gavaging mice with the AST-deficient E. coli Nissle 1917 (ΔacEcN) can inhibit arginine catabolism of...

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