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This study demonstrated that in mice, the absence of Jagged-1 expression in skin-resident regulatory T cells significantly delays wound healing by reducing the accumulation of neutrophils, highlighting the role of Jagged-1 in coordinating immune cell recruitment during injury.

This study found that canine pemphigus foliaceus skin lesions exhibit a distinct immune signature, with upregulated pro-inflammatory and Th17-related genes, showing similarities to human pemphigus. Further research using advanced sequencing is needed to better understand the disease's pathogenesis.

Ritlecitinib effectively treats severe Alopecia Areata by reducing harmful immune activity in the skin.

This study found that a non-scarring alopecia in C3H/HeJ mice resembles human alopecia areata and may serve as a valuable model for studying specific subtypes of the human condition.

This review discusses progress in targeted therapies for vitiligo, focusing on Janus kinase inhibitors and the potential of mesenchymal stem cells, but reports no new clinical results.

In this study, single-cell sequencing revealed clonal expansions of CD4+ and CD8+ T cells in murine and human alopecia areata, supporting the development of predictive models for human disease.

This report describes two cases where patients developed alopecia while undergoing treatment for psoriasis with IL-17 inhibitors, suggesting an unexpected paradoxical reaction.

This mathematical model of alopecia areata illustrates how inflammatory autoimmune responses interrupt the anagen phase of hair growth, and may help evaluate treatments and identify new therapeutic targets.

This case report describes the first known instance of fixed drug eruption linked to finasteride, confirmed through an oral challenge test that reproduced symptoms at the same skin site.

This study explored the immune environment of the hair follicle's bulge region and suggested that its unique signaling may prevent melanoma formation by lacking necessary proinflammatory signals for full oncogenic transformation, indicating potential strategies for melanoma prevention by replicating this immune-privileged environment.

This research suggests that innate lymphoid cells type 1 (ILC1) may contribute to the development of alopecia areata, alongside CD8+ T cells, by disrupting hair follicle immune privilege and promoting features of the disease.

In this study, increased production of CXCL10 was associated with the infiltration of Th1 and Tc1 cells in acute alopecia areata, suggesting a possible new target for treatment.

This article discusses diffuse alopecia areata, highlighting its autoimmune characteristics, more intense inflammation, and challenges in diagnosis, but presents no new clinical findings.

This study found that RANKL signaling enhances CD8+ T cell-mediated anti-viral immunity during herpes simplex virus infection by preventing apoptosis of Langerhans cells, suggesting potential therapeutic applications.

This study identified key genes linked to immune cells and potential therapeutic compounds for alopecia areata by evaluating upregulated genes from patient datasets, highlighting T and NK cell involvement in hair follicle attack and suggesting drug candidates through molecular docking and dynamics simulations.

This study developed and analyzed a mathematical model for alopecia areata involving interactions among immune cells and cytokines, establishing conditions under which hairless patches can become stable and pervasive, particularly with certain biological rate levels and chemotactic sensitivities.

This review discusses new insights into the pathogenesis of alopecia areata related to perifollicular immune and endocrine factors and potential new treatments, but it reports no clinical results.

This letter discusses a case of Hepatitis C-related vitiligo in a patient with Ivemark syndrome and presents no new clinical results.

In this study, researchers identified 19 genetic risk loci and highlighted 16 candidate causal genes, including immune-related ones, associated with polycystic ovary syndrome, emphasizing the role of specific immune cells like T cells and NK cells in its pathogenesis.

This study observed that exosomes from adipose stem cells and dermal papilla cells altered the immune environment in hair follicles, promoting hair regrowth in mouse models and human follicle cultures.

This study identified 19 genetic risk loci and 16 potential causal genes related to PCOS, highlighting the role of immune cell-specific mechanisms in its pathogenesis.

Scarring alopecia involves increased immune cells and specific gene changes near damaged hair follicles.

This review discusses the mechanisms underlying the collapse of hair follicle immune privilege in alopecia areata and emphasizes the importance of therapeutic strategies aimed at restoring immune tolerance.

In this study using a mouse model, RIPK1 inhibitors were found to delay the onset of alopecia areata, reduce immune cell numbers in affected skin, and increase hair length, indicating a potential therapeutic role in preventing alopecia areata.

This study found that pediatric alopecia areata patients with atopic predisposition showed heightened immune and inflammatory responses, including significant immune cell infiltration, compared to adults and healthy controls.

In this mouse model study, researchers observed that RIPK1 inhibitors delayed the onset of alopecia areata by modulating immune cells, specifically dendritic and CD8+ T cells, and increased hair length in organ culture mimicking the condition.

This study examines the similarities and differences in the pathogenesis of autoimmune conditions alopecia areata and vitiligo, highlighting shared features like immune cell involvement and cytokine pathways, while noting differing immune responses in skin and hair.

In a mouse model study, transcutaneous auricular vagus nerve stimulation (taVNS) significantly reduced depigmentation in vitiligo, potentially through mechanisms that regulate oxidative stress and inflammation, indicating taVNS's promise as a therapeutic approach for this skin disorder.

This study by Refat et al. found that the level of CD8+ T cell infiltrates in vitiligo lesions before surgical treatment can predict the likelihood of successful repigmentation, suggesting a potential new method for identifying patients who may benefit the most from surgical interventions.

This study identified shared gene expression changes and immune cell infiltration patterns that may contribute to hair loss in alopecia areata and cutaneous lupus erythematosus, but also highlighted factors that might preserve hair in psoriasis patients.