The Inhibitory Activity of Lactobacillus plantarum Supernatant against Enterobacteria, Campylobacter, and Tumor Cells

Cell-free supernatant ofLactobacillus plantarum exhibit a strong antimicrobial effect against a number of pathogenic enterobacteria (E. coli,Shigella flexneri,Salmonella typhimurium,Proteus mirabilis, andCampylobacter jejuni). The degree of growth inhibition in broth culture reached a high level for all tested bacteria. The highest rates were noted forP. mirabilis (by 13 times) and the lowest forS. flexneri (by 5 times) andC. jejuni (by 4.5 times). Significant antiproliferative effect of the supernatant on cells of tumor-derived epithelial cell lines was shown. The highest degree of inhibition (by 22 times) was observed for HT-29 cells (colon carcinoma). Thus, inclusion of probiotics in traditional treatment schemes can increase the effectiveness of antibacterial and antitumor drug therapy.
Source: Bulletin of Experimental Biology and Medicine - Category: Biology Source Type: research