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This study found that anagen stage protein homogenates and specific epitopes from melanogenesis proteins activated CD8 T cells, suggesting alopecia areata is an anagen-specific disease.

This case report details an occurrence of Vogt-Koyanagi-Harada disease during pegylated interferon-α2b and ribavirin therapy for chronic hepatitis C.

PRAME helps distinguish between benign and malignant skin cells in most cases.

This study reviews potential immune targets within hair follicles in alopecia areata, suggesting they may be associated with keratinocytes or melanocytes, and notes possible induction triggers like viruses and infections.

This study suggests that varicella-zoster virus infection in skin cells may play a role in segmental vitiligo's progression and depigmentation.

This study confirms that human CD34+ melanocyte stem cells can be differentiated into melanin-producing cells, suggesting potential for cellular therapy in treating skin degenerative diseases.

This article shares the researchers' challenging journey in exploring the pathobiology of alopecia areata and reports no definitive clinical advances.

This report describes a 20-year-old Chinese man with a rare combination of congenital compound and blue melanocytic nevus associated with alopecia areata.

This review discusses melanocytes' role in pigmentation, their clinical significance in conditions like vitiligo and hair graying, and highlights current research on hair follicle regeneration without reporting new clinical results.

In this study, the researchers optimized a method for culturing melanocyte precursors from hair follicles and found that 1,25-dihydroxyvitamin D3 significantly promotes their differentiation and melanin synthesis.

This study found that among men over 70, certain genetic variants associated with skin pigmentation affect serum PSA levels, with implications for how sun sensitivity and exposure may influence prostate cancer risk.

This study reported that vitiligo patients in Turkey had a high prevalence of associated autoimmune diseases and auditory problems, suggesting vitiligo may be part of a systemic autoimmune process.

This case report describes the development of halo naevi, vitiligo, and diffuse alopecia areata in a 33-year-old woman undergoing tocilizumab therapy, suggesting a link between these conditions and cellular and humoral immune factors.

This study found that non-pigmented hair follicles have significantly lower expression of nucleotide excision repair genes, which may be associated with reduced melanin production capacity in these follicles.

This study found that thymus transplantation in athymic mice resulted in T-cell-driven hair follicle depigmentation and loss, without multiorgan autoimmune disease, highlighting mechanisms of tissue-specific tolerance.

This special issue reviews recent progress in hair research discussed at the 2001 International Hair Workshop, reporting developments in androgen action, stem cell biology, and potential therapies for hair growth disorders without presenting new experimental results.

This review discusses the challenges in identifying specific hair follicle antigens involved in initiating alopecia areata and highlights the need for further research to understand its etiopathogenesis, reporting no new results.

This article reviews potential pathomechanisms of vitiligo, emphasizing membrane alterations involving cholesterol and cardiolipin, but reports no new clinical findings.

COVID-19 might cause gray hair to regain color.

In this study, researchers observed that Melan A, a melanocytic marker, was significantly expressed in hair follicles of alopecia areata patients and correlated with immune infiltrates, suggesting melanocytes might contribute to the autoimmune response in this condition.

This review discusses the pathogenesis of alopecia areata, highlighting the role of immune privilege collapse in hair follicles but reports no clinical results.

This review discusses the biology of hair follicles across various species and their role in fiber quality, but reports no new experimental findings.

This case report identifies a new type of hair matrix tumor called "rippled pattern trichomatricoma," distinguished by its unique cell arrangement and differentiation features.

This study describes previously unknown immune characteristics of the normal human nail, highlighting its similarities to the hair follicle immune system and suggesting an immune privilege in the proximal nail matrix that both provides autoimmunity protection and presents infection susceptibility.

This review discusses the various stem cell populations associated with hair follicles and their potential in regenerative medicine, highlighting differences between murine and human hair follicles but reports no new clinical results.

This study reviewed existing literature and reported two cases of perinevoid alopecia, suggesting that melanocyte antigens may be involved in its development.

This study investigated the pigments and cells causing discoloration in stasis dermatitis but did not clarify the role of melanin or melanocytes in this condition.

This analysis reports that hepatitis B surface protein antigen exposure is associated with an increased risk of alopecia areata.

Hair color production is closely linked to the active growth phase of hair in mice and may also influence hair growth itself.

This study observed that inflammatory AIGA is associated with sweat duct inflammation and sweat coil atrophy, while non-inflammatory AIGA involves only sweat coil atrophy, suggesting distinct pathological features between the two.