Gut Microbiota Identified as Potential Biomarker for Rectal Cancer Treatment Response
A systematic review has identified specific gut microbiota as potential biomarkers for predicting the response to neoadjuvant treatment in rectal cancer patients. The review, which synthesized data from 16 observational studies involving 842 patients, found that certain microbial taxa, such as Bacteroides, Fusobacterium, and Akkermansia, are consistently associated with poor response to neoadjuvant chemoradiotherapy (nCRT). The studies utilized various methods, including 16S rRNA sequencing and metagenomics, to analyze microbiota composition. Despite promising findings, the review highlights the need for standardized validation due to methodological heterogeneity and limited reproducibility.