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This study found that epidermal and fibroblast growth factors increased proliferation of human hair bulb papilla cells and root sheath fibroblasts in vitro, while hydrocortisone decreased it and minoxidil had no effect.

This study found that epidermal growth factor and fibroblast growth factor accelerated proliferation of human hair bulb papilla cells and root sheath fibroblasts cultured in vitro.

This study found that testosterone and dihydrotestosterone inhibit the growth rates of hair bulb papilla cells and root sheath fibroblasts, especially at higher doses, while estradiol was ineffective.

This study found that anisotropic osmolyte solutions may improve hair follicle turnover and condition in both in vitro and in silico models, as well as in human volunteers with hair disorders.

In this study, high concentrations of dihydrotestosterone and testosterone reduced the growth of human hair follicle cells in vitro, while high estradiol levels increased their growth.

This study found that a novel peptide, FOL-005, derived from osteopontin, significantly inhibited hair growth in human hair follicles both ex vivo and in vivo, suggesting potential as a treatment for unwanted hair growth.

This study found that testosterone and dihydrotestosterone significantly decreased the proliferation of papilla cells compared to dermal fibroblasts and outer root sheath keratinocytes in cultured hair follicle cells.

This study found that distinct keratin profiles enabled the evaluation of epithelial differentiation in human hair follicles, with mesenchymal cells playing a critical role in epidermoid differentiation of follicular cells.

The new device improves human hair follicle cell growth and differentiation.

Overexpression of certain genes can shorten hair by disrupting the hair-growth cycle.

Human hair follicles can be used to create skin-like tissue for wound healing and drug testing.

A new method was developed to create better skin models for healing and reconstruction.

This study suggests that dermal fibroblast-conditioned medium containing multi-peptide factors may stimulate hair growth by enhancing growth factor expression and β-catenin regulation in hair follicle cells.

This study identified the dermal sheath as a key component of the hair follicle niche, essential for outer root sheath regression during the hair cycle, highlighting its importance in hair follicle support and regulation.

This study identified fibroblast growth factor 18 in various components of canine hair follicles and other tissues, but found no significant differences in its presence across seasons, body regions, or sexes in beagle dogs.

This study reported that a skin equivalent model using human outer root sheath cells and fibroblasts showed the formation of structures similar to human dermis and epidermis within two weeks after transplantation into mice.

In this study, FGF12 was found to promote hair growth in mice by inducing the anagen phase of hair follicles, suggesting potential for hair loss therapy.

This study found that a mutant form of the FGF5s protein, FGF5sC93S, significantly increased hair count after 24 weeks of application on human scalps, suggesting its potential as a hair growth treatment.

This study presents a novel in vitro assay using human folliculoid microspheres to research hair growth, which may facilitate preclinical testing of hair growth-modulatory agents.

This study visualized mitochondrial metabolism in cultured bovine hair follicles and plucked human hairs, finding that ROS and mitochondrial polarization correlate in specific hair follicle regions, particularly near keratin deposition sites.

This study observed that in vitro cocultures of hair follicle cells with dermal fibroblasts or hair papilla cells enhanced proliferation and differentiation of outer root sheath cells but did not mimic hair-type differentiation.

This study reported that minoxidil affects the physiology of cultured endothelial cells, including reversible suspension of cell proliferation and dose-dependent influence on cell morphology, without significantly altering protein synthesis or inhibiting cell migration.

This study observed that subcutaneously implanted mixtures of human hair follicle cells in nude mice resulted in the formation of hair follicle-like structures, suggesting potential for hair regeneration.

This study found that transplanting hair follicle bulge-derived stem cells in rats enhanced skin regeneration during expansion by differentiating into several skin-related cells and increasing the expression of growth factors.

This study found that aminoguanidine induced increased VEGF mRNA expression in stored hair follicle micrografts, suggesting potential for developing growth-promoting storage solutions in hair restoration surgery.

This study found that aminoguanidine induces VEGF mRNA expression in stored hair follicle micrografts and outer root sheath cells, suggesting potential for enhancing growth factor production during storage.

This study suggests that edelweiss extract may promote hair growth and reduce shedding in ex vivo experiments by affecting hair follicle anagen phase duration and keratinocyte proliferation.

This study observed that the glassy layer of hair follicles in guinea pigs consists of thick collagen-type fibrils organized into two distinct arrays, whereas in young mice, the fibrils are thinner and develop between the outer root sheath and fibroblasts.