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Certain immune cells help hair growth by regulating iron in the skin.

This study observed that alopecia areata can be induced and serially transferred in C3H/HeJ mice using skin grafts, providing a useful model for studying the disease in humans.

In this study, researchers demonstrated that CD4 T cells from skin-draining lymph nodes in mice with alopecia areata can transfer the disease to recipient mice, revealing a critical role for CD4 T cells in disease development and suggesting potential therapeutic targets.

This study suggests that allogenic human mesenchymal stem cell treatments have potential therapeutic effects by inducing immune tolerance and anti-inflammatory effects in severe alopecia areata patients.

This study found that transplanting human cord blood mononuclear cells transfected with a plasmid encoding VEGF and FGF2 into rat skin wounds may accelerate the wound healing process.

This study found that overexpressing the gene Thymosin β4 (Tβ4) can promote the growth and development of secondary hair follicle dermal papilla cells in cashmere goats, suggesting its potential as a target for increasing cashmere production.

In this study, researchers found that alopecia areata is linked to immune cell activation against hair follicle autoantigens and is associated with heart changes and cardiac marker alterations in humans and mice.

This review examines the role of regulatory T cells in skin immune disorders, highlighting their unique functions in conditions like scleroderma, alopecia areata, and psoriasis, without reporting new clinical results.

Stem cell research and regenerative medicine have made significant advancements in treating various diseases and conditions.

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 examines existing research on transdermal testosterone for treating hypoactive sexual desire disorder, suggesting it improves female sexual function with minimal side effects but highlights the need for more long-term safety data.

PPAR-γ agonists like pioglitazone may help manage lichen planopilaris but don't fully reverse scarring.

The conditions alopecia areata, primary sclerosing cholangitis, and ulcerative colitis may be linked by shared autoimmune and cell death mechanisms.

This chapter reviews the skin's structure and its clinical relevance, highlighting connective tissue diseases and the potential for novel treatments like protein, cell, or stem cell transfer, but reports no new findings.

This review discusses the evolution of adipose tissue research in regenerative medicine, from tissue transfer to cell-free bioengineering applications, highlighting its therapeutic potential, current limitations, and future directions.

This review discusses the therapeutic potential and challenges of using extracellular vesicles derived from mesenchymal stem cells, concluding that they may have a comparable therapeutic potential to the original cells despite current challenges in their application and production.

This study explores the potential roles of exosomes in anti-aging applications, highlighting their ability to modulate inflammation, promote tissue regeneration, and transfer bioactive molecules to rejuvenate aging tissues and reverse cellular dysfunction.

In this study, researchers observed that melatonin-mediated LncRNA MTC in Liaoning cashmere goat skin fibroblasts enhances cell proliferation by interacting with the GSTM1 protein, affecting its complex formation with ASK1 and thereby inhibiting apoptosis, which may be relevant for improving cashmere growth.

In this mouse study, researchers found that nanoparticles loaded with umbilical cord-derived stem cell membranes and minoxidil enhanced hair growth by improving drug solubility and transdermal delivery, increasing VEGF, IGF-1, MKI67, and CTNNB protein levels in skin tissue compared to regular minoxidil.

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 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 that mouse skin CD4(+) memory T cells are in equilibrium with the circulation under steady state but increase in specific clusters in response to infection or inflammation.

This review discusses the roles of αβ and γδ T cells in skin health and disease and reports no new clinical results; the authors highlight potential therapeutic developments.

This study found that applying topical imiquimod during mid and late telogen in mice activates hair follicle stem cells and influences immune cell infiltration, promoting hair cycle entry independently of Wnt signaling.

This study reviews the regenerative potential and clinical applications of exosomes derived from mesenchymal stem cells in conditions like COVID-19, alopecia, skin aging, and osteoarthritis, highlighting their role as a promising tool in regenerative medicine.

This study found that t-flavanone may promote hair growth in people with androgenic alopecia by enhancing hair anchoring strength and upregulating desmoglein expression in hair follicles over 30 weeks.

In this study, androgen did not affect keratinocyte growth in coculture with androgenetic alopecia-derived dermal papilla cells, but did significantly suppress keratinocyte growth when androgen receptor was overexpressed in the papilla cells.

This study explores the complex and not yet fully understood causes of premature hair greying, noting genetic factors such as Pax3 and MITE genes, potential defects in melanin transfer, and associations with certain syndromes, while stating that effective treatments are currently lacking.

In this study, researchers used a mouse model of alopecia areata to demonstrate that both ruxolitinib and baricitinib, oral JAK inhibitors, reduced hair loss, CD8+ cell infiltration, and expression of disease-related markers, with baricitinib showing greater effectiveness.

This article discusses the paradoxical effects of valproic acid on hair, reporting both drug-induced hair loss and the potential for hair growth when used topically, but presents no original research findings.