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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.

This study found that over- and ectopic-expression of FoxN1 in early life negatively affected the development of thymic epithelial cells, T and B cells, and skin epithelial cells.

In a conditional knockout mouse model, this study found that loss of the transcription elongation factor SPT6 in basal keratinocytes led to psoriasis-like skin inflammation and delayed wound healing, suggesting SPT6 plays a crucial role in maintaining epidermal immune quiescence by suppressing proinflammatory NF-κB signaling.

In this study, blocking the CXCR3 receptor in mice prevented the development of alopecia areata by inhibiting the accumulation of specific T cells in the skin, suggesting a potential therapeutic approach for humans.

The study suggests that refractory chronic alopecia areata cases have more infiltrating skin resident memory T cells, and using a JAK inhibitor may be an effective treatment option.

In this study, gamma/delta T cells were observed in skin after allergic or irritant reactions to heavy metal salts, suggesting a role in skin defense against these metals.

Developing human skin has immune cells with memory-like features.

In this study, researchers identified unique prenatal lymphocyte features in human fetal skin, including proliferative naive T cells and memory-like T cells, which may influence antigen and allergen responses in utero and infancy.

This review highlights the possible role of T regulatory cells in the immune-related mechanisms of alopecia areata but reports no new clinical findings.

This review discusses sex-based differences in immune responses, focusing on genetic, hormonal, and microbiome factors influencing infections like COVID-19, and reports no clinical results.

This review explores how mesenchymal stem cells and their extracellular vesicles may treat various skin diseases by modulating immune responses and promoting healing, though further clinical trials are needed to confirm their safety and efficacy in practice.

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, transgenic mice with Rank expression in hair follicles showed excessive lymph node growth, which could be normalized by neutralizing the overproduced RANKL, underscoring its role in immune system regulation.

This article reviews sebaceous immunobiology and highlights the complex role of sebaceous glands and sebocytes in skin barrier function and inflammation, particularly in acne pathogenesis, but reports no new results.

This article compares the immunology of cancer and the placenta and suggests that immunotherapy for pregnant cancer patients could be feasible with careful exploration, though no new clinical results are reported.

This study suggests that SOCS3 treatment may effectively inhibit alopecia areata by suppressing CD8+ T cell activity and IFN-γ production.

In this study, Epimedii Folium extract was found to enhance melanin production and promote pigmentation through mechanisms involving the MAPK/ERK1/2 pathway in both in vitro and in vivo models.

This review discusses the protective roles of skin-resident immune cells in maintaining tissue homeostasis and facilitating wound healing, but reports no new experimental findings.

Specific immune cells and pathways contribute to hair follicle inflammation and hair loss, suggesting potential treatments for lichen planopilaris.

This study observed that dandruff in Indian women is associated with a distinct scalp microbiome, including specific bacterial and unknown Malassezia species, with implications for nutrient homeostasis and cell-host adhesion pathways.

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

This study found that terminally differentiated effector memory Vδ1T-cells and their cytotoxic activation markers were elevated in alopecia areata patients, suggesting these cells may contribute to its early pathogenesis.

This study found that Ifidancitinib, a JAK1/3 inhibitor, significantly promoted hair regrowth and reduced inflammation in a mouse model of alopecia areata by decreasing pathogenic T cell activity and inducing T cell exhaustion.

In this study, researchers found that using bioinspired nanovesicles derived from inflammation memory-activated epidermal stem cells effectively promoted healing in diabetic wounds by reprogramming neutrophils to an anti-inflammatory phenotype in both laboratory and animal models.

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

This study explored peripheral blood immune dysregulation in alopecia areata through single-cell analyses, identifying systemic changes linked to disease severity and key signaling roles for monocytes, NK cells, and memory T cells, suggesting potential therapeutic targets.

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.

In a preclinical mouse model, this study found that early treatment with the selective SYK inhibitor entospletinib significantly improved survival rates and clinical outcomes for graft-versus-host disease after hematopoietic stem cell transplantation compared to placebo.

This symposium reviewed various advances in understanding and potentially reversing skin aging, with no new experimental results reported.

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.