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This study found that CD80 expression in wound-activated hair follicle stem cells induces Foxp3 expression in effector T cells, facilitating wound repair by converting them into regulatory T cells.

Enhancing Tregs can protect against alopecia areata.

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

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.

In a murine model of alopecia areata, this study observed that the IL-2 fusion protein HCW9302 helped prevent disease development by expanding regulatory T cells and reducing disease-causing effector T cell infiltrates, suggesting potential for using IL-2 fusion proteins in alopecia areata treatment.

This article reviews the emerging non-inflammatory roles of regulatory T cells in the skin and reports no new clinical findings, suggesting broad biological influence beyond traditional immune functions.

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 study found that during wound healing, hair follicle stem cells develop an immune modulatory ability to create a protective immune suppressive niche, facilitating their survival and function amidst inflammation.

This study found that Malt1, particularly its protease activity, plays a crucial role in maintaining Treg cell function and homeostasis, with its inactivation leading to autoimmune diseases and altered immune responses in mice.

This study found that deleting Stim1 and Stim2 in mature T regulatory cells disrupts Ca 2+ signaling, preventing their differentiation and leading to severe autoimmune disorders in mice.

This review discusses the impaired functionality of regulatory T cells in the pancreas during the development of Type 1 diabetes, highlighting their role in disease pathogenesis, potential of Treg-based therapies, and challenges in clinical applications.

This study found that reduced expression of CD200R1 on monocyte-derived macrophages in rheumatoid arthritis patients was significantly associated with higher disease severity and an imbalance in Th17/Treg cells.

This review examines the potential of regulatory T cell-based therapies to transform treatment across various medical specialties by promoting immune tolerance and tissue repair, but it reports no new clinical results.

This study found that specific immune cell phenotypes, particularly CD25 on CD4 Treg cells, were causally linked to androgenic alopecia, suggesting potential targets for immune-based therapies.

The researchers reported that hair follicle development and commensal microbe colonization promote the accumulation of regulatory T cells in neonatal skin, with the Ccl20-Ccr6 pathway playing a key role in this process.

This review explores recent findings on regulatory T cells, focusing on their unique functions in non-lymphoid tissues and new mechanisms of action, but presents no original clinical results.

This study found that T-regulatory cells, specifically the FOXP3 CD39 subset, were significantly reduced in both circulation and hair follicles of alopecia areata patients compared to healthy subjects, suggesting potential therapeutic targets.

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 study investigated dual TCR Treg cells in mouse tissues, revealing a high proportion and diverse pairing patterns compared to single TCR Tregs, providing insights into their origins and characteristics across different tissue locations.

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.

In this study, researchers found that CD4 T cells from the skin draining lymph nodes of mice with alopecia areata can transfer the disease to recipient mice, highlighting the key role of these cells and their interaction with CD8 T cells in the disease's development.

This review discusses the features of regulatory T cells and the modulation of Foxp3, emphasizing post-translational modifications' impact on Treg function but reports no new clinical results.

In this study, researchers analyzed over 5,000 T cells per sample using scRNA+TCR-seq technology and found that dual TCR Tregs are present in high proportions across various mouse tissues, showing unique TCR pairing patterns, V(D)J usage, and mRNA expression compared to single TCR Tregs.

This review explores the role of regulatory T cells in autoimmune skin disorders like alopecia areata and vitiligo, emphasizing unanswered questions and reporting no new experimental results.

This study found that deleting Snai2 and Snai3 genes in mice disrupts immune cell development, resulting in severe autoimmunity and early death due to the loss of immune tolerance.

This review summarizes recent advances in Treg cell biology, focusing on Foxp3's role in immune regulation and therapeutic reprogramming for immune dysregulatory disorders, but reports no new clinical results.

This review discusses the role of regulatory T cells in skin, including their impact on hair follicle regeneration, wound healing, and immune tolerance, without presenting new clinical findings.

This review explores animal models of alopecia areata, particularly focusing on the insights they've provided into the disease's immune mechanisms and potential treatment approaches, without reporting new experimental data.