December 2023 in “Journal of ethnopharmacology” This study found that tribuloside, a flavonoid from Tribulus terrestris L., enhances melanin production in human melanocytes, zebrafish, and human skin samples without causing toxicity, potentially through inhibiting PDE to increase cAMP levels and promote the melanin biosynthesis pathway.
May 2026 in “Journal of Nanobiotechnology” This study found that using a palmitoylated peptide, Pal-MPAPO, delivered through hydrogel microneedles effectively promoted hair regrowth in mice with efficacy comparable to minoxidil, while requiring less frequent application.
6 citations
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August 2022 in “International journal of molecular sciences” This study demonstrated that α-phellandrene promotes dermal papilla cell proliferation through a cAMP-mediated pathway and upregulates VEGF expression, suggesting its potential use in hair loss prevention.
81 citations
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February 2019 in “Experimental & Molecular Medicine” This review examines PAK4 signaling pathways in prostate cancer, Parkinson's disease, and melanogenesis, focusing on the potential role of the PAK4-CREB axis, without reporting new clinical results.
1 citations
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December 2014 in “Journal of the Society of Cosmetic Scientists of Korea” This study found that corticotropin-releasing factor influences cytokine expression related to hair growth in human dermal papilla cells and suggests CRF receptor antagonists could be potential treatments for stress-induced hair loss.
January 2022 in “bioRxiv (Cold Spring Harbor Laboratory)” This study suggests that typical skin lesions in Carney complex may originate from the pro-melanogenic activity of a specific dermal fibroblast population influenced by PKA signaling.
137 citations
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January 2006 in “Frontiers in bioscience” This review discusses the role of corticotropin-releasing hormone in human skin, focusing on its regulation, receptors, and functions, and highlights parallels with the hypothalamo-pituitary-adrenal axis; it reports no new research findings.
1 citations
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June 2025 in “Journal of Cellular and Molecular Medicine” This study explored the role of plant-derived monomers in reversing grey hair, finding that compounds like fraxinol and morin may stimulate melanin production and tyrosinase activity, suggesting potential therapeutic benefits, although further evaluation of their safety and efficacy is needed.
12 citations
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November 2020 in “Molecules” This study found that carvone, a plant-derived compound, decreases melanin content and inhibits melanoma cell proliferation through the cAMP pathway, suggesting potential benefits for treating melanomas and other hyperpigmentation disorders.
March 2022 in “Molecules” This study found that adenosine promotes hair growth by stimulating the Wnt/β-catenin pathway in cultured human dermal papilla cells through activation of the adenosine receptor.
August 1994 in “Molecular Endocrinology” This study found that AtT-20 pituitary cells with higher cAMP-dependent kinase activity had larger calcium currents and significantly increased beta-endorphin release compared to cells with lower kinase activity.
March 2025 in “Molecular Medicine” 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.
January 2026 in “Aging and Disease” This study found that, despite confirming MC1R expression and functional cAMP signalling, α-MSH treatment did not alleviate UVA-induced stress in adult dermal fibroblasts, suggesting that α-MSH-MC1R may not directly protect against UVA-induced photoaging in these cells.
January 2026 in “Current Issues in Molecular Biology” This study found that transfecting alpaca melanocytes with miR-5110 altered gene expression related to pigmentation, specifically identifying pathways like MAPK and Wnt as involved in melanogenesis regulation, providing insights into miR-5110's role in pigmentation processes.
29 citations
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March 2010 in “Journal of Dermatological Science” This study found that Wnt3a increased beta-catenin signaling and upregulated specific genes in cultured human dermal papilla cells, enhancing their response to PGE2 and potentially aiding hair growth.
4 citations
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February 2025 in “Pharmaceuticals” In this study, voglibose, commonly used for diabetes management, was found to reduce melanin synthesis and inhibit melanogenic signaling pathways in B16F10 melanoma cells, suggesting it could be repurposed for treating hyperpigmentation disorders with confirmed topical safety in human tests.
96 citations
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January 1997 in “Clinics in Dermatology” This study found that G protein-coupled estrogen receptor enhances melanin synthesis in melanoma cells through cAMP-PKA-MITF-TYR signaling, suggesting its potential as a drug target for chloasma treatment.
January 2025 in “Molecules” In this review, the authors discuss caffeine's potential mechanisms and benefits as a hair loss treatment, noting its possible effectiveness and safety, though they caution that existing studies often have significant design flaws.
In this study, the researchers analyzed skin samples from Dun Mongolian horses to uncover molecular pathways linked to the "Bider" marking, identifying differential gene expression and several pigment-related signaling pathways that may play key roles in its formation.
8 citations
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October 2020 in “International Journal of Molecular Sciences” This laboratory study found that nonanal, a plant scent compound, may stimulate growth factors and cell proliferation in human hair follicle dermal papilla cells, suggesting a cAMP-mediated mechanism.
January 2025 in “Fitoterapia” This study reviewed literature on signaling pathways and concluded that these pathways are crucial pharmacological targets, influencing the mechanisms of drugs used in neurological, cardiovascular, and oncological treatments to correct signal transmission disturbances.
October 2023 in “Frontiers in endocrinology” This review investigates molecular mechanisms behind PCOS pathogenesis and discusses potential therapies, but reports no new clinical results.
68 citations
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November 2011 in “The American journal of pathology” This review discusses the role of the hedgehog signaling pathway in hematological cancers and its potential as a therapeutic target; it reports no new clinical findings.
26 citations
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September 2018 in “Neurobiology of Disease” This study found that both finasteride and dutasteride significantly reduced L-DOPA-induced dyskinesia in a rat model of Parkinson's disease, with dutasteride showing greater effectiveness at lower doses.
101 citations
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November 2011 in “Nature Communications” Wnt/β-catenin signaling is crucial for cell fusion in placental development.
12 citations
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July 2025 in “Journal of Clinical and Translational Hepatology” This review discusses how targeting TGF-β with specific inhibitors, including components from Traditional Chinese Medicine, may help reduce liver fibrosis by acting through various signaling pathways.
506 citations
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January 2012 in “Molecular and Cellular Endocrinology” This review details the expression and diverse functions of melatonin receptors in non-neural tissues and reports no new clinical findings, emphasizing their potential as therapeutic targets across various physiological and pathological processes.
15 citations
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June 2020 in “Experimental Dermatology” This review discusses recent genetic findings on hormonal signaling pathways in androgenetic alopecia, reporting no new study results but highlighting the need for further investigation.
February 2025 in “Intisari Sains Medis” This article explores the potential mechanisms by which polydeoxyribonucleotide (PDRN) could improve skin quality, slow aging, and enhance skin regeneration, but reports no new clinical findings.
September 2023 in “Frontiers in medicine” This review suggests that the mTOR signaling pathway may play a significant role in hair follicle health by influencing the effects of Vitamin D receptor deficiency, potentially contributing to hair follicle damage and related hair loss conditions.