In this study, researchers used two dermal papilla spheroid models to investigate hair cycle regression mechanisms and found that the vascular system enhances tissue physiology and gene modulation, while Retinol-based treatments can partially recover tissue degeneration observed over an extended culture period.
April 2023 in “Journal of Investigative Dermatology” This study found that recombinant type III collagen may aid skin aging management by promoting fibroblast proliferation and migration, with a modest impact on inflammatory marker IL-6, though it did not significantly affect TNF-a secretion in vitro.
February 2024 in “Journal of Investigative Dermatology” In this study, the deletion of NIPP1 in keratinocytes led to chronic skin inflammation and epidermal changes in mice, with early cell-cycle arrest and premature senescence observed, potentially contributing to reduced mutagen sensitivity.
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June 2023 in “Nature” In this study using genetic mouse models, researchers discovered that senescent melanocytes in nevi secrete osteopontin, which activates hair stem cells, enhancing hair growth; this process is mirrored in human hairy nevi, suggesting a potential therapeutic target for regenerative disorders.
November 2024 in “Journal of Investigative Dermatology” This study explored the effects of red ginseng-derived components on aging skin cells and found they do not have senolytic properties but can alleviate signs of cellular aging and improve skin cell function by reducing senescence markers and inflammation.