Probiotic Lactobacillus rhamnosus modulates the gut microbiome composition attenuates preneoplastic colorectal Aberrant crypt foci

Publication date: February 2019Source: Journal of Functional Foods, Volume 53Author(s): Yaser Gamallat, Xiaomeng Ren, Williams Walana, Abdo Meyiah, Ren Xinxiu, Yanyan Zhu, Meiqi Li, Siyuan Song, Luhan Xie, Yazeed Jamalat, Mohammad Zubair Saleem, Yufang Ma, Yi Xin, Dong ShangAbstractLactobacillus rhamnosus (LGG) is well documented strain with wide clinical applications. We investigated herein the possible protection role of LGG in against early preneoplastic colon carcinogenesis Aberrant crypt foci (ACF) in rat model. Sprague Dawley rats were pre-treated with or without LGG via oral gavage, followed by ACF induction with Dimethylhydrazine (DMH). LGG treated groups showed significant decrease in total number of ACF’s, and increased Bax, P53, and Caspase-3 proteins expression with significant attenuation of NFkB, Cox2 and β catenin expression compared to DMH group. Serum cytokines array revealed significant elevation of IL-2, IL-6, and IFN-γ, and attenuated level of IL-10 in LGG+DMH treated animals. Finally, the 16S rRNA fecal microbiome genomic analysis showed that LGG alters the gut microbiome structure, composition and functions at phylum, family and genus level. Collectively, LGG reduces colon ACFs incidence and multiplicity via inhibition of pro-carcinogenesis biomarkers and modulate the gut microbiome.Graphical abstract
Source: Journal of Functional Foods - Category: Nutrition Source Type: research