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This study observed that dandruff is linked to a weakened immunoprivilege in hair follicles, with reduced Langerhans cells and increased epidermal CD4+ and CD8+ T cell infiltration.

This paper discusses two preclinical models for studying alopecia areata and finds that testing new therapeutic agents should involve both the C3H/HeJ mouse model and the humanized mouse model for comprehensive insights.

This review discusses the pathogenesis and new treatments for alopecia areata, highlighting the role of the hair follicle's immune and hormone systems and potential therapies like JAK inhibitors and immunomodulators.

This review discusses the immune-mediated mechanism behind alopecia areata, highlighting similarities between the condition in humans and animals, and reports no new clinical results.

In this clinical trial, patients with lichen planopilaris treated with the oral TYK2 inhibitor deucravacitinib showed significant improvement in PGA, LPPAI, and Skindex-16 scores over 24 weeks, with transcriptomic analyses indicating decreased inflammatory and immune pathway activity post-treatment.

In this study, researchers evaluated CS12192, a selective JAK3 inhibitor, in an alopecia areata mouse model and found it reversed hair growth inhibition comparably to baricitinib, with better safety and similar immune-modulating mechanisms.

CD8+ T cells attack hair follicle stem cells, causing scarring and hair loss in Discoid Lupus.

In this study, researchers found that changes in immune cell infiltration and immune-related gene expression may contribute to the immune microenvironment changes in male androgenetic alopecia.

In this study, researchers observed that follicular damage and stem cell loss in frontal fibrosing alopecia may be mediated by immune attacks at the bulge region, suggesting potential for JAK/STAT-targeting treatments to prevent progression.

In this study, gene expression analysis of plucked hair follicles from scalp lesions was sufficient to differentiate chronic discoid lupus erythematosus from psoriasis and healthy controls, suggesting a non-invasive diagnostic potential.

This abstract discusses alopecia areata, highlighting its complex autoimmune pathogenesis involving immune cells and signaling molecules, and underscores the importance of accurate diagnosis and tailored management strategies, noting the need for further research to improve treatments.

This study reported improvement in hair loss lesions in C3H/HeJ mice with alopecia areata following treatment with the CCR5 inhibitor maraviroc, alongside reduced infiltration of specific T cells in the lesions.

This review discusses recent advancements in targeted therapies for vitiligo, highlighting the therapeutic potential of JAK inhibitors and mesenchymal stem cell-derived extracellular vesicles, and reports no new clinical results.

This research highlights that JAK inhibitors, such as baricitinib, may effectively reverse symptoms of alopecia areata by targeting specific immune pathways, though safety and efficacy require further investigation.

A man was diagnosed with a rare form of lupus after showing unique skin symptoms that responded well to treatment.

This article reports that cocaine injections can lead to skin lesions containing talc crystals at the sites of injection.

This open-label study found that oral tofacitinib led to significant hair regrowth in patients with moderate-to-severe alopecia areata, supported by changes in gene expression and T cell dynamics.

This study found that Imaging Mass Cytometry effectively visualizes multiple biomarkers in alopecia areata, enhancing analysis of immune cell and tissue interactions in hair pathology.

This source describes a previous case report that combined anthralin and calcipotriene to treat alopecia areata, showing promising results, but highlights that further research is needed to understand the mechanisms and potential benefits of this combination therapy.

In this pilot study, researchers observed a correlation between clinical severity and histologic severity of lichen planopilaris, suggesting that an immunohistochemical scoring system could aid in grading disease activity.

This review discusses the clinical and trichoscopic features of lichen planopilaris and notes its potential underdiagnosis prior to hair transplant, but it reports no new findings.

This review explores animal models of alopecia areata, particularly focusing on the insights they've provided into the disease's immune mechanisms and potential treatment approaches, without reporting new experimental data.

This review identifies shared interferon gamma-driven immune pathways in vitiligo and alopecia areata, revealing potential targets for new treatments, but reports no clinical results.

This manuscript reviews the latest understanding of alopecia areata's pathogenesis, highlighting the roles of genetic, immunological, and environmental factors, with a focus on immune responses involving IFN-γ and cytotoxic CD8+ T-cells as key contributors to hair follicle inflammation and function disruption without follicle destruction.

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.

This study indicates that innate lymphoid cells-type 1 may provoke alopecia areata by disrupting hair follicle immune privilege and inducing characteristic lesions, challenging the view that alopecia areata is purely an autoantigen-dependent, T cell-driven condition.

This study observed that expanding regulatory T cells in the skin of mice with alopecia areata did not reverse the condition, indicating that additional immunotherapy may be necessary.

Harris et al. describe a new mouse model for vitiligo, where interfollicular melanocytes are retained and melanocyte-targeting immune responses are simulated, aiding the development of immunomodulatory therapies.

This review discusses the association between emotional stress-related neuropeptides and the pathogenesis of alopecia areata, reporting no new experimental findings.

This study found that anagen stage protein homogenates and specific epitopes from melanogenesis proteins activated CD8 T cells, suggesting alopecia areata is an anagen-specific disease.