April 2023 in “Journal of Investigative Dermatology” This research developed new in vitro models for high-throughput screening of drugs that could protect or restore immune privilege in hair follicles, finding that Tofacitinib was effective in preventing inflammation-related marker upregulation, while Tacrolimus and αMSH worked specifically in outer root sheath keratinocytes.
July 2024 in “Journal of Investigative Dermatology” ITK inhibitors may effectively treat alopecia areata.
November 2022 in “Munich Personal RePEc Archive (Ludwig Maximilian University of Munich)” In this study, the pi4kβ1β2 double mutant in Arabidopsis thaliana exhibited altered root growth, increased susceptibility to Blumeria graminis, and a potential correlation between PI4K activity and auxin response and immunity due to changes in vesicular trafficking and actin filaments.
15 citations
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April 2001 in “Journal of Dermatological Science” This study found that KF19418 stimulated hair follicle growth in vitro and accelerated hair regrowth in a mouse alopecia model, with effects comparable to minoxidil.
March 2026 in “World Rabbit Science” This study found that overexpression and knockdown of DKK4 influence genes involved in hair follicle growth and development in Angora rabbits and identified specific SNPs in DKK4 associated with wool quality, notably showing that the TT/GG haplotype combination relates to higher fibre diameters.
July 2025 in “Journal of Investigative Dermatology” 26 citations
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September 2012 in “Cell Reports” In this study, knockout of B-raf and C-raf genes in mice showed they are not needed for early melanocyte development, but are crucial for maintaining melanocyte stem cells, as evidenced by hair graying due to stem cell depletion.
April 2023 in “Journal of Investigative Dermatology” In this study, researchers discovered that fat grafting helps reduce dermal fibrosis in radiation-injured mouse skin by decreasing specific fibroblast subpopulations associated with Fra/c-Jun signaling.
157 citations
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October 2003 in “Development” This study found that different stabilizing mutations in Aux/IAA proteins affect root hair development in Arabidopsis by disrupting the auxin response and suggest a model where the relative abundance of these proteins determines root hair initiation.
February 2026 in “Frontiers in Immunology” This case report highlights significant improvement in a patient with severe alopecia areata who responded well to ivarmacitinib after a suboptimal response to another JAK inhibitor, tofacitinib, suggesting ivarmacitinib as a potential alternative for tofacitinib-refractory cases.
4 citations
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March 2014 in “The FASEB Journal” This study observed that deleting ARNT in keratinocytes of mice reduced zigzag hair production and altered hair follicle differentiation, likely by affecting the expression of specific cyclin-dependent kinase inhibitors.
4 citations
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May 2019 in “Journal of Clinical Oncology” This study found that cyclin-dependent kinase 4/6 inhibitors used for metastatic breast cancer caused alopecia resembling androgenetic alopecia, negatively impacting patients' quality of life, but topical minoxidil showed potential for improvement.
March 2025 in “Experimental Dermatology” This study found that transgenic mice overexpressing IKZF1 developed lesions similar to alopecia areata, suggesting that Ikaros may play a role in the disease's pathogenesis. Ikaros expression was also higher in human alopecia areata patients compared to controls.
93 citations
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July 2006 in “Journal of Investigative Dermatology” This study describes the expression patterns of type I inner root sheath keratin proteins K25–K28 in human hair follicles, highlighting their distinct distribution within different layers.
23 citations
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June 2012 in “PLOS ONE” This study found that KLF4 expression in mouse hair follicle stem cells is important for effective cutaneous wound healing, with its knockdown leading to reduced stem cell populations and delayed healing.
June 2023 in “Journal of Clinical Oncology” This study found that alopecia induced by CDK4/6 inhibitors in breast cancer patients occurs more quickly and is more resistant to minoxidil treatment compared to endocrine therapy-induced alopecia.
52 citations
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December 2014 in “Journal of Dermatological Science” Apremilast may help treat hair loss in alopecia areata.
24 citations
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February 2011 in “The American journal of pathology” This study found that AIRE, a usually nuclear protein, is expressed in the cytoplasm of human epidermal and follicular keratinocytes and associates with the intermediate filament protein cytokeratin 17, potentially impacting ectodermal abnormalities in APECED syndrome.
July 2026 in “bioRxiv (Cold Spring Harbor Laboratory)” This study identified a new FAK isoform, FAKΔe4, which is regulated by ECM stiffness and affects cell migration, invasion, and mechanosensing in human-derived data and engineered models.
2 citations
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March 2025 in “Journal of Translational Autoimmunity” This study reports that AhR pathway expression is significantly reduced in lymphocytes of alopecia areata patients, suggesting its potential as a diagnostic marker and therapeutic target.
July 2025 in “Journal of Investigative Dermatology” 130 citations
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April 2003 in “Journal of Investigative Dermatology” This study reports the cloning and expression details of two new human type II keratins, K6irs3 and K6irs4, in the hair follicle's inner root sheath, suggesting a distinct functional role related to hair structure.
July 2026 in “Journal of Investigative Dermatology”
5 citations
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August 2013 in “InTech eBooks” This article reviews the role of KLF4, a transcription factor, in various cellular processes and its dual function as a tumor suppressor or oncogene depending on the context, but presents no new experimental results.
July 2026 in “Frontiers in Immunology” In this case report, a 28-year-old male with severe atopic dermatitis, prurigo nodularis-like lesions, and alopecia areata showed rapid improvements in skin and hair following treatment with the JAK1 inhibitor, ivarmacitinib, suggesting its potential benefit for complex AD phenotypes with immune-mediated hair loss.
April 2017 in “Leukemia research” This study reported that tofacitinib may be a promising treatment for alopecia areata in adolescents, showing significant hair regrowth with mild adverse effects in a retrospective review.
1 citations
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January 2004 in “Adelaide Research & Scholarship (AR&S) (University of Adelaide)” This study concludes that SPARC is likely a secondary response during the hair cycle's transitional phases, indicating tissue-remodeling processes similar to those in wound repair, rather than initiating these transitions.
8 citations
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July 2020 in “Clinical, cosmetic and investigational dermatology” This review hypothesizes that excessive facial photo-protection may contribute to frontal fibrosing alopecia by disrupting immunological homeostasis through the aryl hydrocarbon receptor-kynurenine pathway, but it reports no new clinical results.
January 2025 in “Journal of Bioresource Management” This study found that inhibiting the ATR kinase with VE-822 impairs DNA repair capability in quiescent human keratinocytes exposed to solar-simulated UV radiation, suggesting ATR's critical role in facilitating effective DNA damage repair and cellular recovery under UV stress conditions.