59 citations
,
April 2016 in “Cell Reports” This study demonstrated that EdnrB signaling promotes melanocyte stem cell proliferation and differentiation, enhancing hair and epidermal melanocyte regeneration, especially under conditions of active Wnt signaling.
55 citations
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September 2003 in “Experimental Dermatology” In this study, researchers found that certain cytokines can significantly down-regulate PDGF expression in dermal papilla cells and follicular keratinocytes, indicating a potential link between PDGF signaling and catagen induction.
26 citations
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November 2002 in “Planta medica” In this study, the methanol extract of Cercidiphyllum japonicum heartwood was found to stimulate the proliferation of mouse hair epithelial cells, with several isolated compounds showing significant proliferative activities.
19 citations
,
April 2015 in “European Journal of Pharmacology” This study found that dihydrotestosterone (DHT) may shorten the hair growth cycle through mechanisms like cell-cycle arrest and β-catenin downregulation in rat hair follicle cells.
16 citations
,
April 2021 in “International Journal of Molecular Sciences” This study found that micro-current electrical stimulation may promote hair growth in human hair follicle-derived papilla cells and a mice model by enhancing cell proliferation, migration, and activating key growth pathways.
16 citations
,
September 2018 in “Journal of Molecular Liquids” This study investigated a nanostructured system using PS-b-PAA diblock copolymer for incorporating the hydrophobic photosensitizer ClAlPc, finding it effective in causing cellular damage in Caco-2 cells under light while demonstrating no cytotoxicity without light, suggesting its potential use in photodynamic therapy.
15 citations
,
July 2010 in “Journal of Allergy and Clinical Immunology” This study found that in mouse models, the novel NF-κB inhibitor DHMEQ improved symptoms of atopic dermatitis as effectively as tacrolimus or betamethasone.
13 citations
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May 2023 in “Journal of Dermatological Science” This research found that reduced expression of SIRT1 in human scalp tissue may contribute to alopecia areata development by inducing immune-inflammatory responses in hair follicle cells, suggesting that SIRT1 plays a regulatory role in hair follicle immunity.
3 citations
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September 2024 in “Journal of Microbiology and Biotechnology” This study found that human placenta hydrolysate effectively inhibited atopic dermatitis development in stimulated human cells and a mouse model, suggesting its potential as a therapeutic agent for related skin diseases.
3 citations
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September 2016 in “Natural Product Communications” This study identified 8-hydroxy germacrene B from Curcuma aeruginosa as a highly potent in-vitro 5-alpha reductase inhibitor with significant anti-androgenic activity, while exhibiting mild cytotoxicity on prostate cancer cells without affecting human dermal papilla cells at tested concentrations.
3 citations
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November 2011 in “Small GTPases” This study identified hair follicle stem cells as a source of squamous cell carcinoma in an inducible mouse model and proposes targeting these for future cancer therapies.
1 citations
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August 2023 in “Biomolecules & therapeutics” In this study, researchers found that recombinant human HAPLN1 promoted hair growth in mice and human hair matrix cells by activating specific signaling pathways, suggesting it may offer a potential hair loss treatment with fewer side effects than existing medications.
1 citations
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January 2001 in “Cosmetics and toiletries” This study found that purified apple juice containing procyanidin B-2 promoted hair growth in both mouse models and human clinical trials for male pattern baldness.
August 2026 in “Clinical Cosmetic and Investigational Dermatology” This study highlights the potential of stem cell-derived extracellular vesicles to treat UV-induced skin damage by modulating key signaling pathways, though challenges like EV composition variability and skin barrier penetration remain, underscoring the need for further research into optimized delivery methods for effective therapies.
June 2026 in “Strathprints: The University of Strathclyde institutional repository (University of Strathclyde)” In this study, researchers found that inhibiting IKKα in patient-derived CCS tumour models reduces tumour viability, supporting the potential for topical IKKα inhibitors as a treatment for CCS.
January 2026 in “Theoretical and Natural Science” In this study, the authors explored the role of Lgr5+ hair follicle stem cells and their regulation through the Wnt/-catenin pathway, highlighting how precise modulation of this pathway is crucial for treating hair loss safely and effectively.
January 2026 in “DOAJ (DOAJ: Directory of Open Access Journals)” In this study, Exosome Hypoxia Mesenchymal Stem Cells significantly reduced inflammation and promoted hair follicle regeneration by normalizing IL-1Beta and IGF-1 levels in fluconazole-induced alopecia-like Wistar rats.
September 2025 in “Digital Commons - RU (Rockefeller University)” This study found that when NFIB was removed in adult mouse hair follicle stem cells, it did not affect their maintenance but unexpectedly led to increased proliferation and differentiation of nearby melanocyte stem cells.
January 2025 in “Stem Cells International” This study found that exosomes from human umbilical cord mesenchymal stem cells reduced oxidative stress and inflammation in UVB-induced skin injury in cell and mouse models, suggesting their potential for treating UV-damaged skin by influencing Nrf2 and NF-κB pathways.
This study evaluated 32 marker compounds from natural herbal extracts and found that four of them, honokiol, isoalantolactone, broussochalcone A, and 3-deoxysappanone B, can induce hair growth, suggesting a potential natural treatment for hair loss.
April 2019 in “Journal of Investigative Dermatology” Targeting immune pathways like JAK/STAT may help treat frontal fibrosing alopecia.
April 2012 in “Cancer research” In this study, the authors found that targeting mTORC1 with rapamycin inhibited TPA-induced skin tumor promotion by affecting keratinocyte proliferation, including critical stem cell populations in the mouse epidermis.
August 1994 in “Journal of dermatological science” Different substances affect hair and skin cell growth in various ways, with some promoting and others inhibiting cell proliferation.
16 citations
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July 2008 in “BMC Genomics” This study shows that alpha 6 + /MHCI - cells have gene expression profiles similar to hair follicle stem cells, suggesting they may be enriched for stem cells.
2 citations
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May 2023 in “Plants” In this study, Allium hookeri extract increased viability and size of dermal papilla cell spheroids and reduced oxidative stress effects, potentially promoting hair growth by regulating specific protein signaling pathways in human cells.
15 citations
,
December 2018 in “International journal of environmental research and public health/International journal of environmental research and public health” This study observed that Epigallocatechin-3-gallate (EGCG) can inhibit phosphorylation of STAT1 and reduce a specific subset of immune cells in vitro and ex vivo, suggesting a potential role in maintaining immune privilege in alopecia areata.
10 citations
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March 2016 in “Toxicology and applied pharmacology” This study reports that A132, a hair dye ingredient, induces phototoxicity and photogenotoxicity via mitochondrial apoptosis when exposed to sunlight, suggesting potential risks of oxidative stress and hair damage.
February 2019 in “International Journal of Dermatology and Clinical Research” In this study, Nε-(carboxymethyl) lysine was found to weaken hair follicle morphogenesis and inhibit essential cell activities in a model simulating accumulated glycation.
37 citations
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January 2002 in “British journal of dermatology/British journal of dermatology, Supplement” This study found that procyanidin B-2 may promote hair growth by reducing expression and inhibiting translocation of PKC isozymes in murine hair epithelial cells.
17 citations
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March 2016 in “PubMed” This review discusses the potential and limitations of adipose-derived stem cells and their conditioned medium for hair regeneration, highlighting novel preconditioning methods to enhance their effectiveness, without presenting new clinical results.