Enhancement in Ex Vivo Phagocytic Capacity of Peritoneal Leukocytes in Mice by Oral Delivery of Various Lactic-Acid-Producing Bacteria |
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Authors: | Yeonhee Lee Taik-Soo Lee |
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Institution: | (1) Culture Collection of Antimicrobial Resistant Microbes and Department of Biology, Seoul Womens University, Seoul, 139-774, Korea;(2) Department of Food Technology, Seoul Womens University, Seoul, 139-774, Korea |
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Abstract: | Lactic-acid-producing bacteria (LABs) are known to have immunomodulating activity. In the current study, various LABs were tested for their immunity-enhancing activity, especially the phagocytic activity of leukocytes. Viable but not heat-killed cells of Weissella kimchii strain PL9001, Lactobacillus fermentum strain PL9005, and L. plantarum strain PL9011 significantly increased the ex vivo phagocytic capacity of mouse peritoneal leukocytes to ingest fluorescein isothiocyanate (FITC)-labeled Escherichia coli in a strain-dependent manner. Results of this and previous studies suggest these LABs as candidates for new probiotics. This is the first report of the enhancement of peritoneal leukocyte activity of these species. |
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