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This review examines recent research on hair follicle stem cells, focusing on their maintenance, differentiation, and the potential for new follicle generation, but it reports no new experimental results.

This review discusses the reuse of molecular mechanisms involved in embryonic skin development for maintaining adult epidermal homeostasis and reports no new results.

This study reports that human hair follicle stem cells express different surface markers than mouse stem cells, facilitating their isolation and potentially aiding in the development of cell-based skin treatments.

This study outlines a method to isolate hair follicle stem cells from mouse skin using fluorescence activated cell-sorting for use in research models, but reports no experimental findings.

This study found that overexpression of the anti-apoptotic protein Bcl-2 in mice disrupted cell death during the hair cycle, impairing hair regeneration by delaying anagen entry and hair growth.

This study found that disrupting Smad4 signaling in young mice led to overactivation of follicle stem cells, causing hyperplasia and depletion of the stem cell niche.

This review explores the complex interactions of intrinsic and extrinsic mechanisms that regulate hair follicle stem cells and their role in skin homeostasis, aiming to advance understanding that could support future research on skin disorders.

This study found that prostaglandin D2 reduced proliferation in bulge resident K15+ stem cells but not in other K15+ progenitor cells, suggesting differential impacts on hair follicle stem cell niches.

In this study, chronic stress signals were found to delay hair follicle stem cell activation and negatively impact their niche components in rodents.

This study found that upper-bulge epidermal stem cells in mouse hair follicles are specialized for nerve interactions, crucial for forming tactile sensory units, and influence touch responses via EGFL6 and αv integrin pathways.

This study found that epidermal-specific deletion of integrin α3β1 significantly reduces papilloma formation in a skin carcinogenesis model by modulating HB stem cell behavior and CCN2 expression.

In this study, proteolytic enzymes applied to mice skin caused severe degeneration in hair follicles, including detachment of stem cells from their niche, suggesting potential impairment of stem cell function.

This study demonstrated that hair follicle bulge stem cells can form epidermis in a tissue-engineered skin model, highlighting the significance of K5/K17 filaments in slow-cycling stem cell subsets.

Valentina Greco's research shows that the environment around hair follicle stem cells is more crucial for regeneration than the stem cells themselves.

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 review describes the hair follicle's structure, particularly its role as a stem cell niche, and discusses its potential application in skin tissue engineering, but does not present new research findings.

In this study, thymosin beta4 was found to stimulate hair growth in normal rats and mice by affecting key processes in the hair follicle cycle, such as stem cell migration and extracellular matrix remodeling.

In this study using a mouse model of Pemphigus vulgaris, researchers found that loss of desmoglein 3 adhesion in hair follicle stem cells triggers a regenerative program restoring stem cell function, requiring Hedgehog pathway suppression.

This review discusses advances in using molecular tools from skin biology to manipulate adult stem cells for regenerative medicine and reports no new clinical results.

This study found that Myc activation in epidermal stem cells leads to chromatin modifications that promote stem cell exit and differentiation, which can be influenced by HDAC inhibitors like trichostatin A.

This study found that intradermal adipocyte lineage cells in mice are necessary and sufficient to activate follicular stem cells, highlighting their role in regulating skin stem cell activity.

This study found that the Foxn1(-/-) nude phenotype significantly influences epithelial progeny in skin, with notable changes in stem cell niches not achievable in other models.

This research discusses a novel imaging approach in live mice to study stem cell and niche interactions in tissue homeostasis and reports no new results.

This study identified specific markers that can distinguish between stem cells in different regions of human scalp hair follicles, offering potential strategies for cell sorting and purification based on these markers.

This study found that quiescent bulge stem cells, when prevented from contributing to hair follicle and epidermal regeneration, did not affect hair follicle growth or wound healing in the short term.

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.

In this study, the researchers found that deleting ceramide synthase 4 in the skin's epidermis alters stem cell differentiation, disrupting hair follicle structure and barrier function, potentially leading to immune responses similar to atopic dermatitis.

This study found that in hairpoor mice, disruptions in hair follicle stem cell quiescence and signaling pathways lead to disturbed hair cycles, which may help explain alopecia development in Marie-Unna Hypotrichosis patients.

This study found that UVB irradiation alters skin stem cell niches leading to signs of photoaging, which may be reversed by adipose-derived stem cells through BMP4 pathway modulation and niche remodeling.

This review discusses manipulating the stem cell niche as a strategy in regenerative medicine to repair damaged tissues, highlighting the potential benefits and challenges but reporting no new results.