Figure 5: Investigation of the anti-colon-cancer proliferative and the non-cytotoxic effects of L. fermentum NCIMB 5221 using non-neoplastic and cancer colon cells. This assay was performed by comparing the viability of Caco-2 colon carcinoma cells and CRL-1831 normal epithelial colon cells, incubated with the CM of L. fermentum NCIMB 5221 during 1, 2, and 3 days. The data values represent the mean ± SEM (n=4). *p < 0.05 compared with L. acidophilus ATCC 314 and L. rhamnosus ATCC 53103. L. a 314: L. acidophilus ATCC 314; L. rh 53103: L. rhamnosus ATCC 53103; L. f 5221: L. fermentum NCIMB 5221.