ArticleBioresources and bioprocessing2026
Lactobacillus gasseri extracellular proteins suppress acne inflammation and sebum secretion via the PI3K/AKT/mTOR pathway.
Article in Bioresources and bioprocessing, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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Who cites it
1 citing paper in PubMed.
- Extracellular vesicles derived from the lactic acid bacterium Enterococcus rotai suppress melanogenesis by modulating the cAMP-MITF pathway.Bioresources and bioprocessing · 2026Article
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8 authors.
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Abstract
This study evaluated the anti-acne potential of extracellular proteins derived from Lactobacillus gasseri (LG-EPs) by integrating physicochemical characterization, antibacterial assessment, cellular assays, and an in vivo sebaceous gland model. LG-EPs were obtained by ammonium sulfate precipitation and characterized using gel permeation chromatography/light scattering (GPC/LS) and liquid chromatography-tandem mass spectrometry (LC-MS/MS). The molecular weight of LG-EPs was mainly distributed between 1.0 × 10⁴ and 2.0 × 10⁴ g/mol, and peptide analysis identified four peptides with antimicrobial potential and twelve peptides with antioxidant potential. LG-EPs exhibited direct antibacterial activity against acne-associated bacteria, with MIC and MBC values of 600 µg/mL against Cutibacterium acnes and MIC and MBC values of 700 µg/mL and 1 mg/mL, respectively, against Staphylococcus aureus. Growth-curve and biofilm adhesion assays further showed that LG-EPs inhibited bacterial proliferation and adhesion. In LPS-stimulated HaCaT cells, LG-EPs reduced the secretion of pro-inflammatory cytokines, including IL-6, IL-8, IL-1β, and TNF-α, while increasing the expression of barrier-related factors such as AQP3, FLG, and LOR. In a golden hamster model, topical LG-EP treatment decreased sebum production and downregulated the transcription of lipogenesis-related genes, including SREBP-1, FAS, and ACC1. These effects were associated with reduced transcript levels of PI3K, AKT, and mTOR, while the anti-sebum effect was accompanied by increased AMPK transcription. Overall, LG-EPs showed multi-target anti-acne potential through antibacterial, anti-inflammatory, barrier-protective, and sebum-suppressive effects.
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