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This review discusses recent advances in hair regeneration strategies, including mechanical stimulation and complementary therapies like MSC transplantation and platelet-rich plasma, and reports no new clinical results.

This study found that H-Ras activation in aged mouse skin leads to increased dysplasia and progression to in situ squamous cell carcinoma, highlighting an age-linked connection between immune changes, senescence, and cancer risk.

This study found that dermal stem cells from granulation tissue promoted wound healing and reduced fibrosis in a combined radiation and skin wound mouse model.

This study suggests that the activation of box A in mesenchymal cell models may enhance stem cell properties, increasing the expression of stemness markers like OCT4, NANOG, and SOX2.

This study found that the circadian clock regulates the activation state of murine epidermal stem cells, affecting tissue homeostasis and susceptibility to tumorigenesis when disrupted.

In this study, researchers found that isoproterenol, an adrenergic β2 receptor agonist, promoted hair growth and hair follicle stem cell proliferation in models of androgenetic alopecia by modulating the PI3K/AKT/β-Catenin pathway, suggesting a potential new therapeutic strategy for hair loss.

In this study, researchers observed that different ERK signal activation dynamics during hair follicle regeneration are linked to cell fate specification and are affected by distinct upstream signaling pathways.

This study found that Runx1 in hair follicle stem cells modulates lipid metabolism, impacting membrane organization and enhancing signal transduction for cell proliferation in both normal and cancer epithelial cells.

This study found that activating CB1 receptor signaling in human hair follicles increased stem cell proliferation while reducing differentiated cell survival, suggesting CB1's role as a survival stimulus for epithelial stem cells.

In this study, re-activating SOX9 in adult epidermal stem cells led to a fate switch towards hair follicle stem cell identity, with altered chromatin dynamics and oncogenic activation, contributing insights into developmental processes and cancer pathways.

This study found that toll-like receptor 9 plays a previously unrecognized role in sensing skin injury and influencing tissue repair and regeneration in adult mice by modulating γδT cell migration.

This study found that melatonin may enhance goat cashmere growth by activating Wnt signaling and regulating stem cell pluripotency through mechanisms involving NOGGIN and BMP4 pathways.

LED light helps human hair root cells grow and move by activating certain cell pathways.

This research details a robust method for isolating hair follicle stem cells and epidermal keratinocytes from mouse hair follicles using fluorescence activated cell-sorting technology.

This study describes a method for isolating stem cells and keratinocytes from mouse hair follicles using FACS technology, facilitating the study of stem cell biology.

This study reported that an HS-associated NCSTN mutation in iPSC-derived skin organoids led to altered hair follicle stem cell differentiation and increased expression of proteins linked to HS inflammation.

This study found that the KrasG12D mutation alters ERK signal dynamics in hair follicle stem cells, leading to tissue deformation, and suggests a collective effect of mutant cells is necessary for disruption.

This review discusses the processes of melanocyte stem cell quiescence and activation, focusing on their interaction with hair follicle stem cells, and highlights current research on hair graying mechanisms; it reports no new results.

This study found that human adipose-derived MSC exosomes (hADSC-Exos) may enhance dermal papillary cell proliferation and migration by activating the Wnt/β-catenin signaling pathway, potentially reversing the effects of dihydrotestosterone in androgenetic alopecia.

In this study, human umbilical cord mesenchymal stem cell-derived exosomes were found to promote the growth of human hair dermal papilla cells, partly by enhancing AKT-dependent signaling pathways, suggesting a potential role in treating hair loss.

The researchers reported that in mice, prolactin signaling in the skin epithelium inhibits hair follicle stem cell activation, promoting quiescence during periods of high serum prolactin like pregnancy and lactation.

This study found that lymphatic vessels play a crucial role in hair follicle growth and regeneration in mice by connecting hair follicles and expanding during stem cell activation.

This study found that exosomes derived from dental pulp mesenchymal stem cells (DPSC-Exos) significantly promoted hair regrowth and follicle density in a mouse model of androgenetic alopecia, showing similar efficacy to minoxidil by activating pathways that improve follicular vascularization and dermal papilla cell function.

This review discusses how chronic inflammation can lead to persistent stem cell activation and DNA damage, ultimately promoting cancer development and metastasis, but reports no new results.

This study found that stem cells can temporarily act as non-professional phagocytes during hair cycle regeneration by clearing apoptotic cells through a process requiring local lipids and retinoids for activation, providing insights into their dual role in maintaining tissue integrity.

The researchers reported that in mice, the type of tumor suppressor deleted along with oncogenic Kras activation in HFSCs influenced the specific squamous cell carcinoma phenotype that developed.

This study found that the E3 ligases NEDD4 and NEDD4L regulate intestinal stem cell priming by degrading the LGR5 receptor, and their loss leads to increased Wnt activation and crypt proliferation, which in turn accelerates intestinal tumor progression in mice.

This study identified a distinct CD49fhigh mesenchymal stem cell subpopulation in the dermis that supports hair follicle development and maintenance via Notch signaling activation.

This study on C57BL/6 mice found that subcutaneous cholesterol injections significantly promoted hair regeneration by enhancing hair follicle stem cell proliferation, highlighting the role of the PKA-tyrosine hydroxylase-sympathetic nervous system pathway in this process.

This study suggests that the epigenetic marker 5-hmC may dynamically influence hair follicle bulge activation during anagen growth in mice, warranting further investigation into its role in stem cell regulation.