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Lactobacillus plantarum L‐137 upregulates hyaluronic acid production in epidermal cells and fibroblasts in mice

  • 2019-07-29
  • Microbiology and Immunology 63(9)
    • Hiroko Nakai
    • Y. Hirose
    • S. Murosaki
    • Y. Yoshikai

Abstract

Heat-killed Lactobacillus plantarum L-137 (HK L-137), an immunobiotic lactic acid bacterium, has been reported to enhance IFN-γ production through induction of IL-12. In this study, we investigated the effects of HK L-137 on skin moisturizing and production of hyaluronic acid (HA), an extracellular matrix associated with the retention of skin moisture. Oral administration of HK L-137 suppressed the loss of water content in the stratum corneum in hairless mice. Treatment of primary epidermal cells with HK L-137 increased HA production. Supernatant from immune cells stimulated by HK L-137, which contained proinflammatory cytokines such as IL-12, TNF-α, and IFN-γ, upregulated HA production and hyaluronan synthase 2 (HAS2) messenger RNA expression by BALB/3T3 fibroblasts via activation of transcription factor nuclear factor κB (NFκB). Although treatment of the supernatant with anti-TNF-α antibody (Ab) alone did not inhibit the HA production, combination of anti-TNF-α Ab with anti-IFN-γ Ab significantly inhibited the HA production. Thus, HK L-137-induced IFN-γ plays a critical role in upregulated HA production in collaboration with TNF-α. HK L-137 may be useful for improvement of skin functions such as moisture retention by inducing HA production.

Keywords: IFN-γ; Lactobacillus plantarum L-137; hyaluronic acid; skin.

Research Insights

SupplementHealth OutcomeEffect TypeEffect Size
Lactobacillus plantarum L-137Enhanced Interferon Gamma ProductionBeneficial
Moderate
Lactobacillus plantarum L-137Improved Skin Moisture RetentionBeneficial
Moderate
Lactobacillus plantarum L-137Increased Hyaluronic Acid ProductionBeneficial
Moderate
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