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This study found that JAK inhibitors promote hair regrowth in both mice and human alopecia areata cases by blocking key immune pathways involved in disease development.

This study found that Th17 lymphocytes may play a more crucial role than cytotoxic T cells in the development of alopecia areata due to their infiltration around the hair bulb/bulge, which exacerbates hair loss as histopathological grade worsens.

This study observed that NSG-hu-BLT mice developed graft-versus-host disease characterized by CD8+ T lymphocyte-related cell death in the skin and liver, which may affect their utility in other research areas.

This study found that γδTregs can prevent and treat alopecia areata in a mouse model with human scalp transplants, suggesting potential for cell-based therapies in autoimmune diseases like alopecia.

This review describes various T-cell-mediated alopecias characterized by distinct lymphocytic patterns and explores their pathophysiology. It highlights the role of CD8+ and regulatory T cells, the JAK/STAT pathway, and stem cell niches, contributing to understanding and potentially addressing these hair loss conditions.

This study observed that in human scalp hair follicles, BTNL2 expression is lower in stressed conditions, which correlates with increased cytotoxic activity by gamma/delta and CD8+ T cells, suggesting a possible role for BTNL2 in controlling immune responses relevant to alopecia areata.

This study found that both topical minoxidil and latanoprost effectively improved hair regrowth in patients with alopecia areata, but minoxidil showed higher efficacy.

This study suggests that CD8+ cytotoxic T lymphocytes play a crucial role in the development of alopecia areata, based on observations in rodent models that mimic human autoimmune disease.

In this study using a mouse model and human data, researchers found that CD8+ T cells are central to driving alopecia areata, while regulatory T cells offer some protection, highlighting CD8+ T cells as key targets for future therapy development.

This study indicates that innate lymphoid cells-type 1 may provoke alopecia areata by disrupting hair follicle immune privilege and inducing characteristic lesions, challenging the view that alopecia areata is purely an autoantigen-dependent, T cell-driven condition.

This study found that innate lymphoid cells-type 1 (ILC1) can induce alopecia areata by disrupting hair follicle immune privilege without the involvement of classical CD8+ T cells.

This study found that ILC1-like cells can induce alopecia areata symptoms in both ex vivo human hair follicles and in vivo mouse models, challenging the view that alopecia areata is solely CD8+ T cell-driven.

This study found that innate lymphoid cells-type 1 (ILC1lc) can induce alopecia areata (AA) by disrupting hair follicle immune privilege and causing hair follicle dystrophy and regression in both ex vivo and in vivo settings.

Enhancing regulatory T cells may help treat autoimmune diseases like alopecia areata.

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

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 study found that peribulbar lymphocytic infiltration can effectively differentiate between alopecia areata and androgenetic alopecia using T-cell infiltration patterns in skin tissue.

This research explored the roles of various T cell types in chronic alopecia areata, finding that increased severity of lesions and hair loss may be linked to decreased lesional Foxp3+ Tregs, with a notable role for IL-17 and Th17 lymphocytes in the pathological process.

This review discusses the autoimmune nature of alopecia areata, potential therapeutic targets, and highlights the need for further studies on immunomodulatory treatments and genetic factors, but it reports no new clinical results.

This review discusses the role of immune responses, especially Th1 cytokines, in alopecia areata pathogenesis and reports no new research findings.

This study found that combining follicular unit extraction with topical calcipotriol betamethasone dipropionate showed the best repigmentation results in treating stable nonsegmental vitiligo.

This study observed that expanding regulatory T cells in the skin of mice with alopecia areata did not reverse the condition, indicating that additional immunotherapy may be necessary.

This article hypothesizes that thymoma with aplastic anemia may result from abnormal autoimmune CD8⁺ T lymphocytes produced by the thymoma, potentially leading to other cytotoxic T-cell-mediated autoimmune diseases.

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.

This abstract discusses alopecia areata, highlighting its complex autoimmune pathogenesis involving immune cells and signaling molecules, and underscores the importance of accurate diagnosis and tailored management strategies, noting the need for further research to improve treatments.

In this case report, a woman developed severe alopecia areata approximately one year after starting belimumab for systemic lupus erythematosus, with hair loss improving upon discontinuation of the drug, suggesting a possible connection between belimumab and immune-mediated hair loss.

This study found that topical application of Astragalus membranaceus extract induced hair regrowth and reduced immune response markers in mice with natural hair loss.

This review discusses emerging research areas in alopecia areata pathobiology, highlighting the potential roles of unconventional immune cells and the need for more targeted therapeutic strategies, but reports no new experimental results.

This study found that DEB-BACE combined with systemic chemotherapy was more effective than chemotherapy alone for unresectable lung squamous cell carcinoma, reducing side effects and improving survival rates.

An 8-year-old girl developed a rare skin condition in a linear pattern on one side of her body after a lung infection, which improved with treatment.