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Hair Growth and Health Promoting Effects of Standardized Ageratum conyzoides Extract in Human Follicle Dermal Papilla Cells and in C57BL/6 Mice
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Hair Growth and Health Promoting Effects of Standardized Ageratum conyzoides Extract in Human Follicle Dermal Papilla Cells and in C57BL/6 Mice
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Hair Growth and Health Promoting Effects of Standardized Ageratum conyzoides Extract in Human Follicle Dermal Papilla Cells and in C57BL/6 Mice
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Journal Article
Hair Growth and Health Promoting Effects of Standardized Ageratum conyzoides Extract in Human Follicle Dermal Papilla Cells and in C57BL/6 Mice
2025
Overview
Background/Objectives: Hair loss, driven by disrupted hair cycles, age-related hormonal imbalances, and oxidative stress, poses significant psychological challenges, necessitating the development of safe and effective therapies. This research investigates the trichogenic potential and underlying mechanisms of a standardized Ageratum conyzoides extract (ACE) using human follicle dermal papilla cells (HFDPCs) and C57BL/6 mice as models. Methods: HFDPCs were treated with ACE to assess its effects on 5α-reductase activity, estrogen receptor (ERα/ERβ) signaling, and activation of Wnt/β-catenin and MAPK pathways. Reactive oxygen species (ROS) levels and antioxidant enzyme expression were also evaluated. In vivo, C57BL/6 mice were administered ACE orally, and hair regrowth, follicle number and depth, and histological changes were measured. Results: In HFDPCs, ACE inhibited 5α-reductase activity, modulated ERα and ERβ signaling, and activated Wnt/β-catenin and MAPK pathways. ACE treatment at 100 μg/mL significantly increased β-catenin, p-GSK3β, and vascular endothelial growth factor (VEGF) expression (p < 0.01) and decreased Dickkopf-related protein-1 (DKK-)1 expression (p < 0.05). It also upregulated VEGF and other hair-growth-related factors and exhibited substantial antioxidant properties by reducing reactive oxygen species (ROS) and elevating the expression of antioxidant enzymes, notably SOD2 at 100 μg/mL. In C57BL/6 mice, oral administration of ACE significantly increased hair regrowth, with the 50 mg/kg group showing the most prominent effects, including increased hair follicle number and depth compared to the negative control group (p < 0.05). These effects were observed to be dose-dependent and comparable to those of minoxidil. Histological analysis confirmed enhanced anagen-phase follicle development. Conclusions: These findings highlight ACE’s multifaceted biological activity in promoting hair growth through hormonal modulation, pathway activation, and antioxidant protection, positioning it as a promising natural supplement for hair growth and health, although further clinical studies are required to confirm its efficacy in humans.
Publisher
MDPI AG,MDPI
Subject
/ Animals
/ Baldness
/ Enzymes
/ Estrogen
/ Female
/ Growth
/ Hair Follicle - drug effects
/ Hair Follicle - growth & development
/ Humans
/ Keratin
/ Mice
/ Plant Extracts - pharmacology
/ Proteins
/ Reactive Oxygen Species - metabolism
/ Skin
/ Vascular endothelial growth factor
