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Wang, G., Sweren, E., & Andrews, W. (2023). Commensal microbiome promotes hair follicle regeneration by inducing keratinocyte hif-1α signaling and glutamine metabolism. Science Advances, 9(1), eabo7555. Added by: Dr. Enrique Feoli (16/02/2023, 19:39) Last edited by: Dr. Enrique Feoli (16/02/2023, 19:41) |
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| Resource type: Journal Article DOI: 10.1126/sciadv.abo7555 BibTeX citation key: Wang2023 View all bibliographic details  |
Categories: BioAcyl Corp Subcategories: Microbiota in wound healing Creators: Andrews, Sweren, Wang Collection: Science Advances |
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| Abstract |
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Tissue injury induces metabolic changes in stem cells, which likely modulate regeneration. Using a model of organ regeneration called wound-induced hair follicle neogenesis (WIHN), we identified skin-resident bacteria as key modulators of keratinocyte metabolism, demonstrating a positive correlation between bacterial load, glutamine metabolism, and regeneration. Specifically, through comprehensive multiomic analysis and single-cell RNA sequencing in murine skin, we show that bacterially induced hypoxia drives increased glutamine metabolism in keratinocytes with attendant enhancement of skin and hair follicle regeneration. In human skin wounds, topical broad-spectrum antibiotics inhibit glutamine production and are partially responsible for reduced healing. These findings reveal a conserved and coherent physiologic context in which bacterially induced metabolic changes improve the tolerance of stem cells to damage and enhance regenerative capacity. This unexpected proregenerative modulation of metabolism by the skin microbiome in both mice and humans suggests important methods for enhancing regeneration after injury. Microbiome induces hair regeneration after wounding.
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