Probiotic and immunostimulating effects of live and heat-killed Pediococcus pentosaceus TAP041
2024
Lee, C.E. | Park, Y.S.
The selected strain, TAP041, showing an excellent ability to reduce the glyoxal and methylglyoxal levels, was identified by 16S rRNA gene-based phylogenetic analysis as Pediococcus pentosaceus. It demonstrated probiotic properties, including acid, bile salt, pancreatin, lysozyme tolerance, gut adhesion, and auto/coaggregation. In RAW264.7 macrophages, both live and heat-killed strains induced nitric oxide production and activated inducible nitric oxide synthase. RAW264.7 treated with P. pentosaceus TAP041 increased the expression level of tumor necrosis factor-α, interleukin (IL)-1β, IL-6, and cyclooxygenase-2, and regulated the expression of c-Jun amino-terminal kinase, p38, and extracellular signal-regulated kinase. These findings suggest that both live and heat-killed P. pentosaceus TAP041 can be used as potential immunostimulatory agents in functional food additives.
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