April 2016 in “Journal of Investigative Dermatology” This study found that inhibiting JAK signaling can unexpectedly trigger hair growth in resting-phase mouse skin, implicating JAK-STAT pathways and oncostatin M in maintaining hair follicle stem cell quiescence.
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October 2015 in “Science Advances” This study observed that applying JAK-STAT pathway inhibitors to mouse and human skin led to rapid hair growth by inducing the anagen phase of hair follicles.
January 2012 in “DigtalCommons @ Texas Medical Center Library (Texas Medical Center)” This study found that Stat3 deletion in certain skin cells led to increased differentiation and altered stem cell behavior, suggesting its significant role in skin tumor development and keratinocyte migration.
April 2024 in “Journal of translational medicine” In this study, the researchers identified MJ04, a selective JAK3 inhibitor, as a promising candidate for promoting hair growth, demonstrating efficacy in both animal models and human hair follicle assays with a favorable safety and pharmacokinetic profile.
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April 2021 in “JCI insight” In this study, selective inhibition of JAK3 signaling effectively prevented and reversed alopecia areata in a mouse model, while JAK2 inhibitors did not restore hair growth.