Advancing Regenerative Cellular Therapies in Non-Scarring Alopecia

This study reports that a single transplantation of autologous stromal vascular fraction significantly increased hair density and keratin score in androgenic alopecia patients within six months.

In this study, patients with alopecia areata received a single intradermal injection of Wharton's jelly-derived mesenchymal stem cells, resulting in an average hair regrowth of 67% at treated sites within 24 weeks, demonstrating both efficacy and safety without side effects.

This study found that 5% primed conditioned medium from human umbilical cord blood-derived mesenchymal stromal cells significantly improved hair density, thickness, and growth rate in patients with androgenetic alopecia.

This study reports that mesenchymal stem cell-conditioned medium promoted dermal cell migration and proliferation, enhancing wound healing but not direct hair growth, in vitro and in adult mouse models.

In this study, autologous non-activated platelet-rich plasma was associated with greater hair re-growth than autologous activated platelet-rich plasma over long-term follow-up.

This study found that micrografts containing human hair follicle mesenchymal stem cells significantly increased hair count and density compared to placebo over 58 weeks in patients experiencing hair loss.

In this study of patients with Androgenic Alopecia, micro-grafts containing HD-AFSCs resulted in significantly improved hair density and follicle count over 11 months compared to a saline solution, suggesting a potential alternative therapy for hair regrowth.

This study suggests that the secretome from amniotic fluid-derived mesenchymal stem cells overexpressing Nanog could stimulate hair growth and increase follicle density, potentially aiding in alopecia treatment.

This review discusses the potential of adipose-derived tissue components like nanofat and stem cells for aesthetic rejuvenation, covering their use in hair growth, scar reduction, and more, without reporting new clinical results.

This review discusses the potential role of extracellular vesicles in modulating hair follicle dynamics and reports no new clinical results; future investigations may inform treatment strategies for skin disorders.

This study found that hair thickness and density increased after treatment with human follicle mesenchymal stem cells and platelet rich plasma, associated with enhanced Wnt signaling and platelet derived growth factors.

This study proposes the miR-22-5p-LEF1 axis as a novel pathway that may regulate hair follicle stem cell proliferation.

This study found that long-term morbidity from scalp skin harvesting for grafts is low, with high patient satisfaction, and androgenetic alopecia is unlikely to uncover underlying harvest-related hair loss.

This review discusses the latest understanding of androgenetic alopecia, including stem cell niches in hair follicles, and highlights emerging treatments like growth factors and platelet-rich plasma without new clinical findings.

This review discusses the safety concerns associated with new treatments for non-scarring alopecias, highlighting that while these therapies such as JAK inhibitors and oral minoxidil show efficacy in hair regrowth, their safety profiles vary significantly, requiring careful consideration of benefits and risks.

This review highlights the potential of ginseng and its metabolites in preventing hair loss, detailing their hair growth-promoting effects observed in numerous preclinical studies, and emphasizing the underlying mechanisms involved.

This review discusses the potential effectiveness of cell therapy for hair loss, highlighting promising early findings but emphasizing that more research is needed to explore specific therapies like autologous fat grafting and mesenchymal stem cells.

In this study, a combination therapy involving oral finasteride, oral and topical minoxidil, and injectable treatments led to significant improvements in hair growth for Asian men with androgenetic alopecia, with high patient satisfaction and minimal complications over a period of 6 to 12 months.

This article reviews the clinical assessment of female pattern hair loss and discusses up-to-date treatments, highlighting oral minoxidil combined with oral spironolactone as a promising novel therapy. It emphasizes the crucial role of general practitioners in diagnosis, treatment planning, and managing associated psychosocial issues.

In this study, patients receiving adipose-derived stromal vascular cell transplantation for alopecia areata experienced significant hair regeneration, increased growth, and improved hair quality after 3 and 6 months, indicating potential efficacy of this stem cell-based therapy for hair loss.

This study found that a single injection of platelet-rich stroma significantly increased hair density in men with androgenetic alopecia within 6 to 12 weeks, with no reported side effects.

This study found that human umbilical cord blood mesenchymal stem cells promoted hair growth by advancing anagen onset and increasing hair follicle regeneration in an in vivo model.

This study found that treatment with mesenchymal stem cell extracellular vesicles enhanced hair growth in mice and stimulated dermal papilla cell activity and growth factor production in vitro.

This pilot study found that a single session of nanofat treatment may increase hair thickness and density in male patients with androgenic alopecia, with effects lasting up to 12 months in some cases, though results varied.

This study found that scalp injection of fat enriched with stem cells may offer a promising alternative for treating early genetic alopecia in both men and women.

This review discusses the potential of adipose-derived stem cells for hair regeneration and suggests that these cells and their conditioned media may offer a promising strategy for treating hair loss.

This study reported that using human follicle stem cells isolated from hair bulge areas increased hair density by about 29% over baseline in patients with androgenetic alopecia, with significant improvements observed 23 weeks after the last treatment.

This review synthesizes recent findings on the hair follicle stem cell niche and its complex interactions, exploring potential pathways for developing new hair growth therapies; it reports no new clinical results.

In this study, Japanese patients treated with adipose-derived stem cell-conditioned medium for hair regeneration showed positive outcomes, suggesting it may be an effective new therapy for alopecia.

This study established a new in vitro culture system that supports the growth and dynamic self-organization of hair follicle stem cells and their progeny, promoting a stable population equilibrium.

This study observed that autologous bone marrow derived mononuclear cells and follicular stem cells were both safe and effective for improving resistant alopecia areata and androgenetic alopecia, with no serious adverse events.

Minoxidil is the only FDA-approved topical drug for treating male or female pattern hair loss, and other medications like finasteride and dutasteride can also increase hair growth.

This study found that human placental extract promoted hair growth and influenced cellular pathways in vitro and rat models, suggesting potential for future hair loss treatments.

This study presents a new model for androgenetic alopecia progression, explaining diffuse hair loss in women through 3D reconstructions of the arrector pili muscle and its relationship with the hair follicle stem cell niche.

This retrospective study found that adipose-derived stem cell-conditioned media increased hair density and thickness in women with female pattern hair loss over 12 weeks, with no severe adverse effects reported.

This review discusses current experimental approaches for regenerating human hair follicles using tissue engineering and isolated cells, but reports no successful strategies with adult cells yet found.

This study found that overexpression of Wnt1a in bone marrow mesenchymal stem cells enhanced mouse hair follicle regeneration and promoted hair cycling.

This study found that men with persistent sexual side effects after using finasteride for androgenetic alopecia had higher androgen receptor expression in certain tissues compared to those who never used the drug.

In this study, Wharton’s Jelly Mesenchymal Stem Cells, cultured with human platelet lysate, showed enhanced wound-healing capabilities and multilineage differentiation potential, distinguishing them from bone marrow-derived stem cells and presenting exciting prospects for regenerative medicine.

This review discusses various methods for obtaining stem cell-derived conditioned media and its applications in disease treatment, finding generally positive results but highlighting the need for standardized production methods.

This review examines the literature on the molecular and cellular makeup of the hair follicle niche and how it influences stem cell behavior during hair regeneration, but does not provide new experimental results.

This study found that higher BMI was significantly associated with more severe hair loss in men with male-pattern and early-onset androgenetic alopecia.

This study suggests the average age of onset for androgenic alopecia may be decreasing, but a longer-term study is needed to confirm this observation.

This study found that patients with alopecia areata exhibit a stronger deficiency in coping with stress compared to those with androgenetic alopecia and controls, suggesting a psychosomatic component to the condition.

This review discusses the molecular mechanisms involved in hair follicle development and regeneration, highlighting findings from mouse genetic studies, and reports no new experimental results.

This study demonstrated that bioengineered hair follicles reconstituted from embryonic skin cells and transplanted into hosts can restore physiological hair functions, suggesting potential applications for treating alopecia.

In this study, researchers found that androgenetic alopecia significantly harms quality of life, particularly in younger patients, those with more severe or long-term alopecia, and those who have sought non-medical hair care.

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 review discusses various therapeutic agents for alopecia areata, categorized by efficacy and safety, and highlights the lack of curative treatments and long-term outcome studies.

This study found that androgenetic alopecia may involve a defect in the conversion of hair follicle stem cells to progenitor cells, as demonstrated by a reduced presence of progenitor cells in bald scalp samples.

This study found that daily oral finasteride may increase hair count and improve hair appearance assessments in men with androgenetic alopecia, but it also appears to raise the risk of sexual dysfunction.

This study suggests that mesenchymal stem cell-induced dermal papilla-like tissues can generate new hair follicles in mice, indicating potential for developing hair cell therapy using stem cells.

This study investigated optimizing the differentiation process of UC-MSCs into dermal papilla-like tissues for potential hair follicle therapy and highlighted the potential to reduce associated costs by evaluating cell density and growth factors.

This study found that the prevalence of androgenetic alopecia in Chinese men and women was lower than in Caucasians and similar to that in Koreans.

This study found that subcutaneous administration of conditioned medium from adipose-derived stem cells promoted hair growth in mice, and hypoxia enhanced this effect by altering growth factor secretion.

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

In this study, 1 mg/day finasteride lowered serum PSA concentration in men aged 40–60, suggesting that PSA adjustment recommendations for prostate cancer screening using 5 mg/day finasteride should also apply to this lower dose for hair loss treatment.

This preliminary study suggests that finasteride might cause depressive symptoms, indicating the need for cautious prescription in patients at high risk for depression.

Human hair follicles can provide stem cells for regenerative medicine.

This study found that stabilized beta-catenin is crucial for activating stem cell transition from quiescence to proliferation in hair follicles by influencing gene expression within the stem cell niche.

This study found that human scalp hair follicles can respond to corticotropin releasing hormone stimulation similarly to the classical HPA axis, including up-regulating cortisol production and activating neuroendocrine feedback loops.

In this 48-week trial, 5% topical minoxidil was more effective than both 2% minoxidil and placebo in promoting hair growth in women with female pattern hair loss, with notable improvements in nonvellus hair count and hair growth assessments.

Minoxidil boosts hair growth by targeting adenosine and possibly sulfonylurea receptor 2B.

This study demonstrated that stress inhibited hair growth in mice, likely through substance P-dependent activation of immune cells, highlighting a brain-hair follicle connection.

This study found that LEF1/TCF3 is necessary but not sufficient for TOPGAL activation in hair follicle development, indicating complex regulation in the skin.

This study found that minoxidil significantly increases VEGF mRNA and protein expression in dermal papilla cells, suggesting a role in enhancing hair follicle vascularization in androgenetic alopecia.