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This study suggests that allergens like linalool found in personal care products may contribute to the pathobiology of frontal fibrosing alopecia by affecting immune responses and stem cell function in hair follicles.

Linalool in personal care products may worsen frontal fibrosing alopecia by damaging hair follicle stem cells and triggering harmful immune responses.

This study observed that dandruff-affected scalp skin has increased T-cell infiltration in the epidermis and a reduction in the hair follicle's physiological immune privilege, particularly in the suprabulbar outer root sheath area, indicating a distinct immune microenvironment compared to healthy scalp.

In this study, researchers created a detailed human skin cell atlas by analyzing over 700,000 cells, finding that disrupted communication among specific immune and stromal cell subsets may play a key role in initiating and sustaining chronic skin inflammation in atopic dermatitis.

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

In this study, researchers found that the loss of SETDB1 in epidermal keratinocytes led to altered chromatin states, increased ERV expression, and activation of immune responses, while inhibiting these effects with certain antiviral drugs reduced skin inflammation and hair loss in a mouse model.

This review discusses recent advances in understanding alopecia areata's disease mechanisms and highlights JAK molecules as promising therapeutic targets, but reports no new clinical results; controlled trials are needed.

This study found that 363 genes were differentially expressed in alopecia areata skin compared to non-lesional skin, suggesting T-cell mediated immune responses and distinct gene profiles related to the disease's stage.

This report describes a case where an elderly woman developed alopecia areata shortly after receiving the Pfizer COVID-19 vaccine, which was effectively treated with topical tacrolimus and minoxidil.

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 developed a foxn1-deficient Xenopus laevis model using CRISPR/Cas9, observing reduced T-cell markers and altered immune responses in tadpoles, providing a nonmammalian model for immunological research.

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.

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 study examined immune responses to Diphencyprone and found that its induced skin reactions have higher levels of negative immune regulators compared to psoriasis, suggesting differences in immune regulation may contribute to psoriasis chronicity.

This study found that individuals with AA have a higher incidence of atopic and autoimmune conditions, suggesting both Th1 and Th2 immune responses may play a role in its development.

This review discusses how inflammation influences hair follicle stem cell activities like wound healing and follicle cycling and suggests a potential link between inflammation, stem cell activation, and programmed cell death.

In this study, researchers identified a specific T cell receptor associated with carbamazepine-induced severe cutaneous adverse reactions, demonstrating its potential for therapeutic development in patients with the HLA-B*15:02 genotype.

In this study, researchers found that electrospun membranes with aligned surface topography advanced the immune response towards an adaptive stage and highlighted the role of T cells in hair follicle regeneration in mice, showcasing the intricate interactions between immune and skin cells.

This study found that SM04755, a novel topical drug, inhibited inflammation, keratinocyte proliferation, and fibrosis in vitro and improved skin health in a mouse model of psoriasis, indicating potential as a topical psoriasis treatment.

This background review discusses alopecia areata, highlighting the role of CD8+NKG2D+ T cells in hair follicle pathogenesis, and notes that the exact mechanisms causing hair loss remain unclear.

This review discusses how modern lifestyle factors affecting gut health may contribute to Alopecia Areata in genetically predisposed individuals, reporting no new results but suggesting the need for long-term interventions.

The study suggests that vaccination with soluble keratin peptides K71 and K31 significantly delayed the onset and progression of autoimmune alopecia areata in mice by inducing T cell anergy.

This report details a case study where a 40-year-old woman experienced allergic contact dermatitis and angioedema-like symptoms after using PPD-containing hair dye. Patch testing confirmed a positive reaction to PPD, highlighting the substance's potential to cause both T-cell and IgE-mediated hypersensitivity reactions.

This study found a specific T cell receptor that may be key in carbamazepine-induced Stevens-Johnson syndrome and toxic epidermal necrolysis, suggesting potential therapeutic targets.

This article reviews the characteristics of Lupus Erythematosus Panniculitis as a rare variant of Chronic Cutaneous Lupus Erythematosus, with no new clinical results reported.

In this case study, the progression of alopecia universalis in a Japanese man was linked to the involvement of Th1 and Th17 cells, suggesting an autoimmune mechanism.

This study found that electrospun membranes with aligned surface topography enhanced wound healing and hair follicle regeneration while modulating the immune response in a mouse skin wound model.

In this study, Luan et al. showed that epidermal stem cells play a key role in wound healing by coordinating the recruitment of regulatory T cells and neutrophils, which help balance immune tolerance and inflammation.

This review discusses the roles of distinct immune cell types in skin wound healing, highlighting findings from animal studies, but provides no new clinical results.