ArticleAmerican journal of translational research2025
Chemotherapy-induced suppression of colorectal cancer-associated gut microbiota and modulation of host miRNA expression.
Article in American journal of translational research, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
objectivesTo characterize gut microbiome alterations in colorectal cancer (CRC) patients following cancer chemotherapy (CCT) and to explore associations with bacterial translocation and host miRNA dynamics.
methodsStool samples were prospectively collected from 20 CRC patients who had undergone radical surgery followed by adjuvant chemotherapy (CAPOX/mFOLFOX6). Stool samples were collected pre- and post-CCT. Microbial profiling was performed using 16S rRNA sequencing. Bacterial translocation was assessed by measuring serum anti-Lipopolysaccharides (LPS) IgA/IgG levels by ELISA. miRNA expression of miR-143 and miR-145 was quantified using qPCR.
resultsPost-CCT samples showed significant increases in gut microbiome diversity (
conclusionCCT induces significant remodeling of CRC-associated gut microbiota, characterized by suppression of pathogenic genera and enrichment of pro-inflammatory taxa. These changes align with reduced bacterial translocation and increased expression of tumor-suppressive miRNAs, suggesting that CCT exerts dual therapeutic effects by simultaneously modulating microbial communities and host molecular pathways.
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