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This review examines how epigenetic dysregulation affects adult stem cell function, noting that impacts range from minor to serious disruptions in tissue homeostasis and potential cancer development.

This study found that androgens inhibit hair follicle stem cell differentiation by disrupting the Wnt signalling pathway in dermal papilla cells, but Wnt activation can restore differentiation.

This study found that DKK1 and WNT10b are paracrine factors that modulate hair follicle stem cell differentiation inhibition, contributing to androgenetic alopecia by affecting Wnt signaling in androgen-sensitive dermal papilla cells after dihydrotestosterone stimulation.

This study developed a technique to limit genetic recombination to regulatory T cells to investigate whether self-tolerance is maintained in non-lymphoid tissues, an area previously not well understood.

This study explored the dermal stem cell niche of equine hair follicles, revealing typical fibroblast morphology and confirming the expression of standard stem cell markers comparable to other species.

This study found that deleting ceramide synthase 4 in skin epidermis stem cells disrupts hair follicle and skin barrier function, leading to immune responses similar to atopic dermatitis, due to imbalances in lipid composition affecting differentiation.

This study found that Caspase-1, traditionally viewed as an inflammasome component, is secreted upon wounding and plays a novel role by triggering hair follicle stem cell migration into the epidermis, offering insights into epithelial hyperplasia mechanisms in inflammatory skin conditions.

This study found that adding epidermal growth factor to mesenchymal stem cells enhanced wound healing and hair follicle regeneration in rats compared to stem cells alone.

In this study, researchers developed a programmable system using engineered nanovesicles from hair follicle stem cells to modulate immune responses, which showed promise in precisely controlling inflammation, promoting immune balance, and accelerating wound healing, particularly for infected wounds.

This study found that the ASLNC168501 pathway has significant potential for restoring hair follicle stem cell function and promoting hair regeneration in androgenetic alopecia by counteracting the AR/miR-128-3p/IGF-1 pathway dysfunction.

Fibronectin is essential for hair follicle regeneration and may help rejuvenate aged skin.

In this review, researchers discuss the role of epigenetic modifications in epidermal stem cells' decline during skin aging and identify potential interventions targeting these disruptions, suggesting significant possibilities for antiaging strategies and dermatological treatments.

This study found that adipose-derived mesenchymal stem cells produced more anti-inflammatory and pro-angiogenic cytokines on electrospun scaffolds, which enhanced wound healing and macrophage activity in a rat model.

This study found that human umbilical cord blood-derived mesenchymal stem cells (hUCB-MSCs) significantly prevented hair loss induced by dexamethasone in a mouse model and enhanced cell proliferation in human hair follicle cells, suggesting a protective effect against stress-related hair loss.

This study found that hair follicle mesenchymal stem cells improved liver function and pathology in a mouse model of liver cirrhosis, potentially by inhibiting the TGF-β/Smad pathway and reducing hepatic stellate cell activation.

In June 2019, the stem cell research field saw major progress, including new clinical trials, FDA approvals, and industry collaborations.

This study investigates the role of retinoic acid in regulating hair follicle stem cell homeostasis to identify new potential targets for treating androgenetic alopecia.

This study found that miR-339-5p negatively regulates loureirin A-induced differentiation of hair follicle stem cells, potentially impacting skin repair and regeneration by inhibiting the Wnt/β-catenin signaling pathway.

This review discusses recent advances in imaging techniques for monitoring stem cells in vivo and reports no new results; it suggests directions for future development in endoscopic molecular imaging tools.

This study found that platelet-derived growth factor signaling is crucial for maintaining the hair follicle dermal stem cell pool and supporting their regenerative capacity.

This study explored how high glucose concentrations impact mesenchymal stromal cell survival in diabetic environments, highlighting mitochondrial factors as potential targets for enhancing cell viability.

This study found that exosomes derived from hair follicle neural crest stem cells significantly promoted nerve regeneration in injured neurons, particularly when overexpressing miR-214-3p, which enhanced axon extension and motor function recovery in both in vitro and in vivo models.

This study demonstrated that EVs from pluripotent stem cell-derived mesenchymal stem cells improved recovery and function in ischemic lower limbs by enhancing angiogenesis through the ERK/MAPK signaling pathway.

Rat hair follicle stem cells have functional oxytocin receptors, useful for studying neuropsychiatric disorders.

This study found that combining Panax notoginseng saponins with bone mesenchymal stem cells significantly enhanced diabetic cutaneous ulcer healing in rats by reducing inflammation and promoting new epidermis formation through specific molecular pathways.

This research reports that copper-quercetin complexes show strong potential in antioxidation and cancer therapy, while their effects on specific cell death pathways warrant further investigation.

This review summarizes recent insights into corneal limbal stem cell differentiation and the potential role of progenitor-like cells, but reports no new experimental results.

In this study, the authors observed that the combined treatment group showed a significant increase in inflammatory cell density and a higher maximum tensile breaking force in tendon repair by the end of the second month.

This review discusses the role of LGR4 in tumors, highlighting its involvement in cancer progression, metastasis, and chemotherapy resistance, as well as its regulatory effects on tumor stem cell self-renewal and stem cell characteristics, based on multiple recent studies.

In this study, researchers developed self-assembled skin models derived from hair follicle cells, offering an ethical and reliable alternative to animal testing and bovine collagen in dermatological research by providing functional dermal and epidermal layers for substance evaluation.