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Abstract Title:

Potential anticancer effects of cell wall protein fractions from Lactobacillus paracasei on human intestinal Caco-2 cell line.

Abstract Source:

Lett Appl Microbiol. 2019 Sep ;69(3):148-154. Epub 2019 Jul 30. PMID: 31278768

Abstract Author(s):

S Nozari, Y Faridvand, A Etesami, M Ahmad Khan Beiki, S Ali Miresmaeili Mazrakhondi, J Abdolalizadeh

Article Affiliation:

S Nozari

Abstract:

Consumption of probiotics has an important role in colorectal cancer prevention. In this study, we aimed to explore that the cell wall protein fractions from Lactobacillus paracasei could induce apoptosis on Caco-2 cell line. The cell wall proteins from L. paracasei were fractionated by gel filtration chromatography (F1, F2 and F3) and characterized by polyacrylamide gel electrophoresis (SDS-PAGE). The anticancer properties were evaluated using MTT assay and Annexin V-FITC/PI staining. Administration of L. paracasei increased a significant concentration- and time-dependent anti-proliferative effect on Caco-2 cell line, determined by cell viability assays. However, a dramatic decrease in cell viability of Caco-2 cells was observed at the concentration of 100 µg mlof F1 L. paracasei for 72 h (58% cell viability, P < 0·05) The results showed that F1 L. paracasei could induce apoptosis in Caco-2 cancer cell line by increased in annexin V and propidium iodide staining for 72 h (up to 90·6%, P < 0·001). These results indicated the importance of the anticancer effects of cell wall protein fractions of L. paracasei in human colon carcinoma Caco-2 cell line. Thus, cell wall protein fractions of L. paracasei can be a potential chemotherapeutic agent against Caco-2 cell lines. SIGNIFICANCE AND IMPACT OF THE STUDY: Significance and Impact of the Study: Our findings revealed that the newly identified cell wall protein fractions from probiotic Lactobacillus paracasei inhibit the cell growth of human colon carcinoma cell line (Caco-2), and the results indicated that the cell wall proteins from L. paracasei can be a potential chemotherapeutic agent against Caco-2 cell lines.

Study Type : In Vitro Study

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