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This article reviews the role of epithelial-mesenchymal interactions in hair follicle development and discusses the challenges of understanding the signals that regulate this complex process; it reports no new results.

This study investigated the Mandarin duck as a model for understanding lifelong developmental changes, finding that male sail feather morphogenesis involves a combination of local morphogenetic programs, epigenetic regulation, and hormonal cues, with increased female estrogen levels observed before the mating season.

This study found that the protein p63 requires morphogenetic signals to regulate gene expression effectively during skin cell differentiation, highlighting its complex role in therapeutic reprogramming for conditions like epidermolysis bullosa.

Organ transplant recipients have a higher risk of skin cancer over time, atopic dermatitis skin shows unusual bacterial and fungal patterns, a new tool for measuring hidradenitis suppurativa severity was created, and gene expression changes in male baldness suggest new treatments.

This study found that the chromatin remodeler Brg1 plays a crucial role in hair follicle maintenance and epidermal repair by regulating the Shh signaling pathway and forming a positive feedback loop.

This article does not contain an abstract, so it provides no new research findings or clinical results.

This study developed a stable cell line model to evaluate hair differentiation activity, offering a new tool for screening drugs that promote hair growth using mouse iPS cell-derived systems.

This study found that basal cell carcinoma exhibits patterns of hair follicle differentiation but is stuck in telogen arrest, which can be rescued by adding noggin and TGF-β2 in vitro.

Researchers successfully isolated and identified key stem cells in human hair follicles, which could help develop new skin and hair treatments.

This paper presents a protocol for differentiating human-induced pluripotent stem cells into keratinocyte progenitor cells and keratinocytes, suggesting potential applications for hair follicle restoration and burn or ulcer therapy.

This study found that laminin-511 is crucial for hair morphogenesis in mice, as it influences primary cilia formation and dermal papilla maintenance through noggin and sonic hedgehog signaling.

This study found that FGF18 is crucial for regulating hair follicle rest and growth phases, as its absence in mice leads to a shorter resting phase and rapid hair cycling.

This study identified three genes with significantly higher expression in androgen-sensitive beard dermal papilla cells compared to androgen-insensitive scalp cells, suggesting potential novel signaling pathways in hair follicles.

Higher IGF-1 levels in hair follicles link to better finasteride results for hair loss.

In this study, researchers found that synchronization between expanding epithelial cells and background mesenchymal cells in the mouse hair cycle may be maintained by inhibitory regulation, with potential mediators of this regulation identified.

This study describes three new cases of MCOPS6 with BMP4 variants, noting expanded phenotypic variability but no clinically apparent microphthalmia in these individuals, which is commonly reported in the disorder.

This study, conducted among Egyptians, found a borderline significant association between the Stul polymorphism of the androgen receptor gene and androgenetic alopecia in males, with higher androgen receptor expression in balding scalp areas.

This study found that epimorphin is closely linked to developing hair follicles in human fetuses, suggesting it plays a significant role in hair follicle morphogenesis.

This study found that four microRNAs, which were significantly upregulated in balding hair follicle papilla cells, could play a role in the development of male pattern baldness.

In this study, estradiol was found to increase VEGF expression in cultured dermal papilla cells at physiological levels similar to pregnancy, suggesting that declining estrogen might contribute to female pattern hair loss in older Japanese women.

In a laboratory setting, this study found that overexpression of the FGF5 short form in cultured keratinocytes increased hepatic growth factor gene expression, suggesting a potential role in hair growth.

This study suggests that administering SH-MSCs gel might decrease IL-6 expression and increase TGF-β expression in alopecia-like rats, indicating potential for alopecia therapy.

This study found that COX-2 expression in normal rat skin is linked to the hair cycle, with varying levels observed in different skin structures during anagen, catagen, and telogen phases.

This study found that keratinocyte growth factor is a potent mitogen in human hyperplastic prostate cells, suggesting it plays an important role in prostate growth by acting in a paracrine manner.

This study found that Eda and activin A regulate Foxi3 expression, which may contribute to the development of hypohidrotic ectodermal dysplasia by affecting Foxi3 activity in ectodermal appendages like hair and teeth.

Targeted therapy for skin cancer is complex due to the role of the hedgehog pathway in both cancer and hair growth.

This study found that the proteins GDNF, NTN, GFRα-1, GFRα-2, and c-Ret are differentially expressed during various stages of the human hair follicle cycle, with potential implications for hair biology.

This study identified overexpression of certain immune-related genes and underexpression of genes in specific signaling pathways in premature androgenetic alopecia, suggesting potential new therapeutic targets.

This study reports that BMP2 expression in goat skin is higher during late telogen and early anagen phases, indicating a potential role in hair follicle regeneration.

This study suggests that ADAM 10 and 12 proteases may play important roles in the regulation of hair cycling through their expression patterns in hair follicle structures.