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Effects of Pediococcus pentosaceus LI05 on immunity and metabolism in germ-free rats.

  • 2021
  • Food & Function 12(11)
    • Shiman Jiang
    • Jiafeng Xia
    • L. Lv
    • Qiangqiang Wang
    • Yating Li
    • Qiaomai Xu
    • Xiaoyuan Bian
    • Jianzhong Ye
    • Liya Yang
    • Huiyong Jiang
    • Ren Yan
    • Kaicen Wang
    • D. Fang
    • Lanjuan Li


Many Pediococcus spp. have health-promoting benefits, and Pediococcus pentosaceus LI05 is one such species that was proved to be beneficial in previous studies. Our research aimed to determine the immune and metabolic effects of P. pentosaceus LI05 on germ-free rats. Germ-free rats were gavaged with P. pentosaceus LI05 suspensions (1 × 109 CFU) for 2 weeks, and 3 weeks later, blood, spleen, intestine and liver samples were gathered for metabolome, intestine morphology, immunity, and transcriptomics analyses. Oral gavage of P. pentosaceus LI05 reduced the bodyweight of rats, which manifested as increased fecal carbohydrate concentrations, decreased intestinal fat intake and the hepatic fat synthesis gene expression, and accelerated fat-to-glycogen conversion. In addition, P. pentosaceus LI05 exhibited an anti-inflammatory ability, reducing serum proinflammatory cytokine levels and increasing intestinal subepidermal CD4+ cell levels. Furthermore, administration of P. pentosaceus LI05 increased the antimicrobial ability and enhanced the liver detoxification function. These results indicate that as a probiotic, P. pentosaceus LI05 ameliorates the hampered immune response of GF animals and improves the metabolism of fat and toxic substances.

Research Insights

SupplementHealth OutcomeEffect TypeEffect Size
Pediococcus pentosaceus KABP™-041Improved Antimicrobial AbilityBeneficial
Pediococcus pentosaceus KABP™-041Improved Immune FunctionBeneficial
Pediococcus pentosaceus KABP™-041Improved Liver FunctionBeneficial
Pediococcus pentosaceus KABP™-041Reduced Body WeightBeneficial
Pediococcus pentosaceus MAK99P15PEnhanced Antimicrobial ActivityBeneficial
Pediococcus pentosaceus MAK99P15PImproved Liver FunctionBeneficial
Pediococcus pentosaceus MAK99P15PIncreased Intestinal Subepidermal CD4+ Cell LevelsBeneficial
Pediococcus pentosaceus MAK99P15PReduced Body WeightBeneficial
Pediococcus pentosaceus MAK99P15PReduced Serum Proinflammatory CytokinesBeneficial
Pediococcus pentosaceus PP06Improved Antimicrobial AbilityBeneficial
Pediococcus pentosaceus PP06Reduced Body WeightBeneficial
Pediococcus pentosaceus PP06Reduced Inflammation LevelsBeneficial

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