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CD8+ virtual memory T cells may cause hair loss in alopecia areata.

The gut microbiome affects the development of alopecia areata.

In this case study, a 65-year-old male with hepatocellular carcinoma treated with the PD-1 inhibitor Sintilimab developed alopecia universalis alongside significant tumor regression and complete remission, highlighting a rare immune-related adverse event with effective anti-tumor outcomes.

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.

This review discusses the pathophysiology of alopecia areata, highlighting the role of CD8 cytotoxic T cells and the upregulation of JAK signaling pathways; it reports no new experimental results.

This study shows that IKZF1 and the protein IKAROS may play a role in the development of alopecia areata, based on findings from both mouse models and human scalp tissues.

This case study reports a rare co-occurrence of alopecia areata and vitiligo in a 13-year-old female, suggesting a potential pathogenic link between the two autoimmune skin diseases.

This study found that orally administering the CCR5 inhibitor Maraviroc improved hair loss in 4 out of 5 mice with alopecia areata and also reduced the development of the condition, evidenced by decreased CCR5+ T-cell infiltration in treated mice.

This study found significantly higher levels of the protein ULBP3 in patients with alopecia areata incognita compared to other hair loss conditions and healthy controls, suggesting ULBP3's potential as a diagnostic marker for AAI.

This review explores the shared pathogenesis of alopecia areata and vitiligo and compares treatment responses, noting that hair regrowth in alopecia areata occurs more rapidly than skin re-pigmentation in vitiligo, possibly due to differences in stem cell biology and treatment effects on melanocytes.

This study found that topical immunotherapy affects angiogenesis and immune cell ratios in the scalp, potentially offering insights into the mechanisms underlying alopecia areata.

This study reported that total glucosides of paeony capsules were as effective and safe as compound glycyrrhizin tablets for treating mild to moderate alopecia areata.

This study found that alopecia areata is linked to genetic factors, specifically HLA haplotypes on chromosome 6, and involves immune privilege collapse at hair follicles which is mediated by the JAK-STAT pathway and pro-inflammatory cytokines like IFN-γ.

No results are provided in this article as it lacks an available abstract, making it unclear what effects apremilast and tofacitinib have in a humanized mouse model of alopecia areata.

This study found that C3H mice with prior microbial exposure developed alopecia areata at a reduced rate and had fewer associated T cells compared to controls, suggesting that prior infections might attenuate autoimmune responses related to the disease.

In this study, treatment with IL-2C to expand Tregs effectively halted hair loss progression in a murine model of alopecia areata.

JAK inhibitors might help treat alopecia areata.

This quiz presents educational questions about alopecia areata, including its diagnosis and underlying mechanisms, but reports no new clinical outcomes.

This study found that germinated hemp seeds extract and exosomes from their calli can prevent androgenetic alopecia by modulating genetic, cellular, and immune responses in hair follicle dermal papilla stem cells and CD8+ T cells, with exosomes being more effective.

In this study, researchers observed that dormant TRP-2+ melanoma cells in bone marrow can interact with CD8+ T cells in tumor-bearing ret transgenic mice, potentially influencing immune responses.

This study, using multimodal profiling in mice, found that various tissues contain unique γδ T cell subsets adapted to their environment, revealing their functional diversity, lineage relationships, and similarities to CD8+ tissue-resident memory T cells.

This study found that zinc treatment in alopecia areata patients may increase CD8+ cells, suggesting its effectiveness could be due to immunomodulation.

This study found increased infiltration of specific immune cells, such as γδ T cells and CD8+ T cells, in the bald scalp of male androgenetic alopecia patients, and identified four key immune-related genes potentially involved in hair loss development through interferon-γ signaling pathways.

This study found that FOXN1 haploinsufficiency is a significant genetic factor causing T cell lymphopenia at birth, linked to reduced thymic function in both humans and mice.

Hemp seed biomaterials may reduce hair loss and improve hair growth.

This study found that in a mouse model of alopecia areata, tofacitinib inhibited CD8+ T cell infiltration at hair follicles by modulating linoleic acid metabolism and magnesium pathways, offering insights into potential therapeutic strategies for the condition.

This study provides evidence that innate lymphoid cells-type 1 can induce alopecia areata in human hair follicles, challenging the view that it is solely a CD8+ T cell-driven autoimmune disease.

This study found that chronic eczema supports the expansion of myeloid suppressor cells, which contribute to silencing autoreactive T cells and partially promote hair regrowth in alopecia areata.

This study found that in mice with premature ovarian insufficiency, miR-21 enhances ovarian function recovery following umbilical cord-derived mesenchymal stem cell transplantation by influencing specific cellular signaling and immune pathways.

This study found that in a mouse model of Ross River virus-induced joint inflammation, targeting IL-17A and IL-17A/F heterodimers reduced disease severity.