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Adherence and anticarcinogenic effects of Bacillus polyfermenticus SCD in the large intestine
Author(s) -
Lee N.K.,
Park J.S.,
Park E.,
Paik H.D.
Publication year - 2007
Publication title -
letters in applied microbiology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.698
H-Index - 110
eISSN - 1472-765X
pISSN - 0266-8254
DOI - 10.1111/j.1472-765x.2006.02078.x
Subject(s) - probiotic , colorectal cancer , 1,2 dimethylhydrazine , in vivo , caco 2 , in vitro , bacillus (shape) , microbiology and biotechnology , biology , carcinogenesis , cancer , large intestine , cancer cell , small intestine , cell growth , pharmacology , azoxymethane , bacteria , biochemistry , genetics
Aims: To investigate the probiotic properties of Bacillus polyfermenticus SCD such as their adherence to Caco‐2 cells and anticarcinogenic effects on human colon cancer cells and rat colon cancer carcinogenesis. Methods and Results: The cell surface hydrophobicity and cell agglutination of B. polyfermenticus SCD was 64·04 ± 1·25% and 297·3 ± 8·7 mg ml −1 , respectively. This strain was strongly adherent to Caco‐2 cells. Bacillus polyfermenticus SCD was also found to inhibit the growth of colon cancer cells in a dose‐dependent manner as detected by the MTT assay. After 10 weeks of B. polyfermenticus SCD supplementation with 3 × 10 6 CFU day −1 in F344 male rats, dimethylhydrazine‐induced aberrant crypts and preneoplastic lesions decreased by 40% compared with the control rats. Conclusions: Bacillus polyfermenticus SCD has strong adherent properties in the colon, and anticarcinogenic effects in vitro and in vivo . Significance and Impact of the Study: These new findings on the characteristics of B. polyfermenticus SCD will be valuable in the evaluation of this commercial probiotic. Also, B. polyfermenticus SCD can be useful for the inhibition of colon cancer cells as an ingredient of medicinal foods or new drugs.