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This study suggests that human hair follicles may actively suppress natural killer cells, which contrasts with the observed defects in NK cell regulation in alopecia areata.

This study suggests that sweat glands may have an immune privilege similar to hair follicles, and disruptions in this could contribute to autoimmune skin diseases.

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.

This study observed that Langerhans cells and melanocytes migrated to hair follicle sites during human embryogenesis, suggesting that Langerhans cells acquire immunoregulatory properties there.

This study found that anti-CD44 treatment inhibited leukocyte migration in alopecia areata and eczema, suggesting targeted therapies could enhance contact sensitizer treatment for alopecia areata.

This study found that electrospinning membranes with smaller fiber diameters significantly improved skin wound healing by promoting cell proliferation and encouraging reparative macrophage transformation.

This review synthesizes current advances in transcriptomics and RNA regulatory networks, alongside stem cell-derived skin organoid research, to propose a conceptual framework for understanding and potentially guiding regenerative skin repair, without claiming clinical readiness.

This study found that targeting IL-6, IL-1, and CCR6 signaling pathways may effectively reduce irradiation-induced alopecia and dermatitis in radiotherapy patients.

This study found that biallelic mutations in the TTC7A gene affect lymphocyte and gut epithelial cell function, thereby contributing to the development of inflammatory bowel disease in patients.

Leflunomide is more likely to help treat alopecia areata than cause it.

This review highlights that two-photon excitation microscopy is a valuable tool for visualizing live skin structures and immune responses at high resolution, though its clinical use is hindered by safety and cost issues.

CBD can help hair grow by supporting scalp health and reducing inflammation.

This review discusses the potential role of extracellular vesicles in modulating hair follicle dynamics and reports no new clinical results; future investigations may inform treatment strategies for skin disorders.

This study developed immortalized human hair follicle-derived mesenchymal-like stromal cells (iHF-MSCs) as a consistent source of therapeutic secretome, reporting their superior immunomodulatory and regenerative performance, potentially advancing cell-free therapies for inflammation and tissue repair.

This study found that aligned electrospinning membranes enhance skin wound healing by upregulating MMP12 expression and inhibiting fibroblast migration, which results in reduced scar formation, providing valuable insights for developing more effective biological dressings.

This study found that blocking LFA-1 signaling completely prevented the development of alopecia areata in C3H/HeJ mice, suggesting that LFA-1 plays a crucial role in the disease's pathogenesis and could be a target for new therapies.

This review highlights the complex role of leukocyte migration in both driving inflammation and facilitating its resolution, suggesting that targeted modulation of this process could improve therapeutic strategies for inflammatory diseases.

This study found that collagen VI is crucial for peripheral nerve function and regeneration, and its absence promotes abnormal hair regrowth after skin wounding in mice, revealing potential therapeutic targets for nerve injuries and hair loss.

This paper examines the potential autoimmune basis of alopecia areata, but reports no new clinical results; the focus is on analyzing complement levels and macrophage migration inhibition factor in patients.

This review discusses the mechanisms of wound healing and excessive scarring, highlighting the importance of understanding these processes for developing new therapies to prevent fibrotic scarring in large skin wounds.

This review discusses recent advances in scarless wound healing, focusing on strategies to create pro-regenerative scaffolds for repairing damaged skin, and reports no new clinical results.

This study found distinct differences in protein expression and wound healing pathways between Acomys cahirinus and Mus musculus, highlighting potential targets for reducing fibrotic response in mammals.

This review highlights the potential of microfluidic skin-on-a-chip models in skin research, emphasizing their ability to mimic human skin structure and improve control over cellular and molecular distribution compared to traditional in vitro models.

This study used digital-light-processing bioprinting to create a 3D skin-on-a-chip model with a miniaturized vascular network to closely study immune cell interactions similar to real human skin, demonstrating the potential to analyze immune-T cell trafficking influenced by skin signals.

This study highlights that a novel radially aligned nanofiber scaffold with dual growth factor gradients significantly enhances wound healing, promoting cell migration, epidermal regeneration, and angiogenesis, ultimately leading to improved wound closure, immune regulation, and tissue remodeling compared to other groups.

This article discusses the coordinated roles of different epidermal stem cells and other cell types in the skin's wound healing process and reports no new experimental results.

This study found that human hematopoietic mesenchymal stem cells increased the viability and migration of human outer root sheath cells in an in vitro alopecia areata model, involving Wnt/β-catenin and JAK/STAT pathways.

This study found that conditioned media from human amniotic fluid-derived stem cells may enhance skin regeneration by promoting cell proliferation and migration, and by modulating gene expressions altered by UV irradiation.

This study observed that exosomes from adipose-derived stem cells promoted hair growth by enhancing dermal papilla cell proliferation and activating signaling pathways, suggesting potential for treating immune-mediated alopecia.

This study found that interleukin-1α and interleukin-7 secreted by keratinocytes enhance the proliferation of γδT-cells and epidermal stem cells, revealing mechanisms of stem cell activation during wound healing in mice.