ArticleNature aging2026
Noncircadian BMAL1-YAP activity amplifies persistent inflammation in aged epidermis.
Article in Nature aging, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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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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Authors and funding
11 authors.
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Abstract
Aging is characterized by persistent low-grade inflammation linked to impaired tissue homeostasis, yet the underlying molecular mechanisms remain poorly understood. The mammalian skin is a clinically relevant site of aging-driven inflammation associated with compromised barrier function, inefficient wound healing, elevated oxidative stress and DNA damage accumulation. Here we show that, in the murine epidermis, aging engages a previously uncharacterized BMAL1-YAP functional cooperation with enhanced binding at inflammation-related enhancers, amplifying target gene transcription. Independent of its circadian clock role, BMAL1 partners with the mechanosensitive cofactor YAP at enhancer regions to regulate epidermal identity genes. However, in aged skin, this cooperative binding undergoes a functional shift, enhancing the expression of inflammation-related genes, partially coregulated by NF-κB. In addition, aged pro-inflammatory IL-17 signaling activates YAP in a Hippo-independent manner. These findings unveil a transcriptional mechanism underlying epidermal aging, linking chromatin dynamics to inflammatory programs through rewiring of BMAL1-YAP-occupied enhancers, highlighting potential strategies to counteract chronic inflammation and restore tissue homeostasis during aging.
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