Identification of a bacteriocin-like compound from Lactobacillus plantarum with antimicrobial activity and effects on normal and cancerogenic human intestinal cells

• Published in: AMB Express Vol. 9; no. 1; pp. 88 - 11
• Main Authors: De Giani, Alessandra, Bovio, Federica, Forcella, Matilde, Fusi, Paola, Sello, Guido, Di Gennaro, Patrizia
• Format: Journal Article
• Language: English
• Published: Berlin/Heidelberg Springer Berlin Heidelberg 17-06-2019; Springer Nature B.V; SpringerOpen
• Subjects: Anti-tumoral activity; Antiinfectives and antibacterials; Antimicrobial activity; Antimicrobial agents; Bacteria; Bacteriocin-like compounds; Biomedical and Life Sciences; Biotechnology; Butanol; Cell proliferation; E coli; Epidermal growth factor; Epidermal growth factor receptors; Gram-negative bacteria; Gram-positive bacteria; Growth factors; Healthy cells; High-performance liquid chromatography; Intestine; Lactobacillus plantarum; Life Sciences; Microbial Genetics and Genomics; Microbiology; Microorganisms; Original; Original Article; Stationary phase; Viability; Healthy cells; Antimicrobial activity; Bacteriocin-like compounds; Anti-tumoral activity; Lactobacillus plantarum
• ISSN: 2191-0855; 2191-0855
• DOI: 10.1186/s13568-019-0813-6

In this paper, we demonstrate that the antimicrobial activity of
L. plantarum
PBS067 strain against antagonist microorganisms was mediated by the production of a bacteriocin-like compound secreted at the stationary phase of the growth. The novel bacteriocin-like compound, designed plantaricin P1053, was identified by using sorption–desorption method, butanol extraction and SEC-HPLC. The molecular mass of plantaricin P1053 was shown to be 1053 Da by ESI-MS analysis. Plantaricin P1053 exhibited a broad-spectrum antimicrobial activity against Gram-positive bacteria as
S. aureus
and Gram-negative bacteria as
E. coli
. In addition to the antimicrobial activity, the isolated bacteriocin-like compound showed effects on normal and cancerogenic epithelial intestinal cell lines through an enhancing of viability of healthy cells and a proliferation reduction of cancer cells. Moreover, in this paper we demonstrate that the isolated bacteriocin-like compound acts on healthy cells through the epidermal growth factor receptor (EGFR) pathways. In conclusion, plantaricin P1053 isolated from
L. plantarum
PBS067 strain could represent one of the first multifunctional bacteriocin-like compound acting on human epithelial intestinal cells.