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This review discusses various approaches to treating alopecia, including drug therapy and hair transplantation, but reports no new research findings; the authors highlight the need for novel techniques like cell culturing.

This study found that canine hair follicle stem cells in vitro expressed markers associated with multipotency, suggesting their potential role in the hair cycle.

This study found that ectodermal precursor cells derived from human induced pluripotent stem cells may enhance hair follicle morphogenesis through improved epithelial-mesenchymal interactions when cocultured with dermal cells.

This review discusses the growth factors produced by adipose tissue-derived stem cells that are associated with hair growth stimulation and reports no new clinical findings.

This study found that PHBV cocultured with epithelial and dermal cells might enhance early-stage wound healing by promoting wound closure and re-epithelization more effectively than PHBV/collagen.

This study revealed that in androgenic alopecia, the proximal attachment of the arrector pili muscle to the hair follicle is often lost or significantly reduced.

This review discusses recent advances in hair follicle biology, regeneration, and tissue engineering, highlighting emerging therapeutic opportunities, and reports no new experimental results.

This study developed a humanized scalp model in mice which demonstrated that transplanted cultured human hair follicle dermal cells contributed to the restoration of damaged hair follicles.

The authors concluded that Lrig1-positive stem cells are essential for sebaceous gland formation in mice, as their ablation led to temporary sebaceous gland disappearance without affecting hair growth.

This article reviews the concept of using cell therapy for hair loss treatment, emphasizing the ongoing development of methods to create and implant hair follicles in vitro but reports no new findings.

In this study, murine fetal epidermal stem cells successfully formed new hair follicle structures when cografted with folliculus pili cells in nude mice.

This study found that disrupting Stat3 in keratinocyte stem cells of mice reduced skin tumor formation by approximately 80%, suggesting Stat3's role in tumor initiation survival mechanisms.

SPRY1 deficiency in skin cells causes stem cells to move to the skin surface, leading to increased pigmentation.

The study reports that Fgf18 and Tgf-β2 signaling pathways in hair follicle stem cells have opposing effects on the timing of hair cycle transitions, influencing the shift from telogen to anagen phases.

In this study, researchers evaluated hair follicle transplantation techniques and reported that challenges such as limited follicle supply and low follicle survival rates often limit patient satisfaction, but advances in regenerative medicine may offer promising new solutions.

Stem cells in developing hair follicles move to specific areas as they mature.

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 exosomes from human umbilical cord mesenchymal stem cells significantly promoted hair follicle growth and enhanced the transition to the growth phase in a model of androgenetic alopecia, by enriching specific microRNAs that activate key pathways involved in hair regeneration.

Targeting immune pathways like JAK/STAT may help treat frontal fibrosing alopecia.

This study found that follicular stem cells in hair follicles are more sensitive to the antiproliferative effects of glucocorticoids compared to basal keratinocytes due to incomplete desensitization.

This study found that in scarring alopecia, stem cells are differentially localized, suggesting that both inner and outer root sheath stem cells, rather than just follicular bulge stem cells, are involved.

This study suggests that stress-induced premature senescence of dermal papilla cells may contribute to hair follicle aging by impairing critical epithelial-mesenchymal interactions and promoting inflammatory cytokine production.

This review discusses the therapeutic effects of stem cell therapy in various diseases and emphasizes the need for controlled differentiation and further large-scale trials, but reports no new findings.

This study found that hair loss in an Olmsted syndrome mouse model with a Trpv3 mutation was linked to premature keratinocyte maturation, affecting hair follicle structure and function.

This case report describes a 29-year-old Japanese man with follicular mucinosis, suggesting nestin-positive, multipotent hair follicle stem cells may be involved in reticular epithelial degeneration of the outer root sheath.

This study found that treating hair follicular stem cells with tissue extract from 10-day-old mouse embryos significantly enhanced their differentiation into neural cells, particularly with higher extract concentrations.

In this study, co-grafting human keratinocytes with murine dermal papilla-enriched cells produced hair follicle-like structures, but without regular hair formation, suggesting anomalous folliculogenesis.

In this study, researchers observed that a noncanonical mechanism involving the γ-secretase-dependent, RBPj-independent Notch intracellular domain improves survival in Msx2-Cre mice by delaying hair follicle destruction and reducing disease severity.

This article discusses the concept of hair cloning through cultured follicular cell implantation but provides no new experimental results; it highlights ongoing interest among hair restoration professionals and the public.

This study investigated the effects of exosomes from human umbilical cord mesenchymal stem cells on hair loss in mice with alopecia areata, emphasizing the potential of these easily isolated and stored exosomes for research and clinical treatment.