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Adult hair follicle cells can create new hair follicles from corneal cells with the right support.

This review discusses the role of Hedgehog signaling in basal cell carcinoma development and highlights genetic mouse models and potential targeted therapies, but reports no new clinical results.

This study suggests that the action of minoxidil in stimulating hair growth likely occurs at the follicular dermal papilla, though it does not induce new follicle formation.

This study found that in superficial angiomyxomas, S100A4-positive mesenchymal niches may induce non-neoplastic adnexal epithelial growth, and highlighted evidence of mesenchymal-to-epithelial transition in eccrine duct branching, especially in Carney's complex cases.

This review examines the regeneration capabilities of skin, oesophagus, and oral mucosa, highlighting the oral mucosa's unique scarless healing properties and the potential of cell therapy to improve scar reduction in wound healing.

This study synthesizes knowledge of how dendritic cell signals, epithelial integrins, and fibroblast activity converge on TGF-β1 to maintain or disrupt skin healing, contrasting normal and fibrotic scar formation and suggesting possible integrin and immune-targeted treatments for skin fibrosis.

This article discusses the complex role of TGFβ in cancer progression, highlighting its dual function as both a tumor suppressor in early stages and a promoter in later stages, without reporting new results.

This article reviews methods to enhance epithelial–mesenchymal interactions for hair follicle bioengineering but does not present new experimental results; it emphasizes optimizing combinations for successful regeneration.

T cells and bacteria in the gut and skin help maintain health and protect against disease.

This study found that Bone morphogenetic proteins (BMPs) play a crucial role in dermal papilla cells' ability to induce hair follicle stem cell differentiation, and that androgens may impair this process by downregulating BMPs.

This review discusses the roles of immune responses and cells in skin health and disease, emphasizing recent insights into their mechanisms and potential therapeutic applications, but presents no new experimental results.

This study summarizes the signaling molecules and extracellular components involved in epithelial–mesenchymal interactions, enhancing our understanding of hair follicle regeneration and skin wound healing, but reports no new experimental results.

This study found that basement membrane components and structures in mouse hair follicles are highly specialized for specific inter-tissue interactions, with laminin α5 playing a crucial role in hair cycle regulation and anchoring.

This study reports that the autotaxin–LPA–LPA3 signaling pathway at the embryo-epithelial boundary plays a critical role in decidualization by up-regulating HB-EGF and COX-2 in the uterine epithelium.

In this study, TC-1 cells, resembling stromal cells formed by epithelial-mesenchymal transition, significantly affected the behavior of normal human keratinocytes, supporting the role of stromal cells in tumor progression.

This review discusses strategies to regenerate human hair follicles using stem cells and reports no new experimental results; the authors note existing challenges and the potential of hiPSCs for future applications.

This review discusses hair follicle organoids as emerging models for studying hair biology and disorders, emphasizing their promise for bridging basic research and clinical applications, but reports no new results.

This study found that loss of Apc due to K14-cre-mediated gene recombination in mice led to aberrant growth in ectodermally derived squamous epithelia, implicating its critical role in specifying epithelial cell fates during embryonic development.

This article reviews the similarities in early development processes of hair follicles, teeth, and mammary glands and reports no new experimental findings.

This narrative piece considers how epigenetic factors may influence the processes of skin wound healing, including hair follicle formation, but it presents no new experimental results.

This review discusses the shared molecular and cellular processes in the early development stages of skin appendages like hair follicles, teeth, and mammary glands, reporting no new results.

This review discusses the dynamic, niche-driven regulation of stem cell states in tissue homeostasis and regeneration, focusing on epithelial stem cells in the mammalian skin, intestine, and lung, without providing new experimental results.

This review discusses the role of intrinsic skin signals, rather than serum signals, in regulating melanin synthesis and hair pigmentation, but reports no new experimental data.

This chapter discusses the skin stem cell niche as a complex ecosystem and highlights the diverse components and interactions that influence stem cell function, but it reports no new experimental results.

This review discusses recent advances in developmental tissue engineering for regenerating ectodermal appendages like teeth and glands, emphasizing biomaterial selection and cell culture strategies, but reports no new experimental results.

This review discusses the interactions between immune cells and the skin epithelium and their impact on maintaining barrier function, emphasizing the potential to enhance epithelial barrier function in inflammatory diseases.

This review synthesizes current knowledge on hair follicle biology in androgenetic alopecia and explores potential regenerative therapies, but it reports no new clinical results.

This narrative review explores molecular signaling pathways and their impact on hair follicle microenvironments in androgenetic alopecia, alongside potential treatments like stromal vascular fraction therapies and exosome-based strategies.

This review integrates current understanding of hair follicle biology and signaling pathways into a comprehensive framework for androgenetic alopecia, but presents no new empirical findings.