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

This study observed that VEGF165 increases proliferation and migration but alters adhesion properties of cultured human hair follicle cells, indicating a potential role for VEGF/VEGFR-2 in hair follicle regulation beyond angiogenesis.

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

This study suggests that decreased expression of thioredoxin reductase 1 in hair follicle cells may contribute to glucocorticoid resistance in some alopecia areata patients by affecting the intracellular redox system.

This paper reports on the structural characteristics of α-type filaments in the inner root sheath cells of guinea pig hair follicles without presenting new clinical findings.

This study suggests that human outer root sheath cells are suitable for skin replacement, as they can form a stratified epithelium similar to normal epidermis in organotypic cultures.

This study found that nestin-negative hair follicle stem cells can differentiate into neural stem cell-like cells, but not mature neurons, through a multi-step neuro-induction process.

This study developed a novel monoclonal antibody, TYHF-1, which specifically reacts with hair keratins but not with epidermal keratins or various other tissue cells.

This study describes a new tissue culture method that successfully induces outer root sheath cells from hair follicles to differentiate into a multilayered epithelium with characteristics similar to normal interfollicular epidermis.

This study suggests that the NGF/TrkA/CREB system plays a crucial role in promoting outer root sheath cell proliferation in cashmere goats, which may aid in marker-assisted breeding.

This study found that minoxidil sulfate did not enhance hair follicle growth or cell proliferation in isolated human hair follicles at concentrations of 0.1, 1, and 10 μg/ml.

This study found that extracellular vesicles from mesenchymal and outer root sheath stem cells may inhibit hair follicle stem cell apoptosis, suggesting potential therapeutic benefits for hair loss treatments.

This study found that a high dose of epidermal growth factor induced hair loss in sheep by causing apoptosis in anagen hair and transitioning the hair cycle to catagen.

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 Morus alba root extract activates β-catenin in hair follicle dermal papilla cells, promoting the transition to the anagen phase and enhancing hair growth factor secretion.

In this study, Rosa multiflora root extracts showed strong antioxidant activity and promoted expression of growth factors IGF1 and PDGFB, suggesting potential use as a natural hair growth agent.

In this study, treatment with human follicular keratinocyte-conditioned media improved the trichogenicity of cultured dermal cells by activating key signalling pathways, suggesting its potential use in cell therapy for hair loss.

This study demonstrated that autologous mesenchymal stem cells from hair follicles, when combined with a novel gelatin-based hydrogel, showed promising osteogenic potential and could offer a non-invasive alternative for bone regeneration.

In this review, the researchers discussed the role of cell wall components and proteins in root hair growth, emphasizing the complex interplay of subcellular factors, and identified open questions and future research directions in root hair mechanobiology.

This study evaluated nanovesicles derived from Polygonum multiflorum roots, finding that they promote dermal papilla cell proliferation and activate β-catenin signaling, which in turn enhances hair shaft elongation in ex vivo cultured human hair follicles, suggesting their potential use for alopecia treatment.

This study reports that the side population technique can isolate melanocyte stem cells from human hair follicles, potentially allowing them to be used for skin pigmentation repopulation.

This study found that the Nod factor from Rhizobium meliloti, particularly at concentrations of 10-8 and 10-7 M, induced specific membrane depolarization and root-hair deformation in Medicago sativa, depending on the stage of cell differentiation.

Minoxidil activation by hair enzymes predicts treatment success for female hair loss.

This thesis explores the role of the actin cytoskeleton in plant cell growth, highlighting its involvement in signal transduction and the regulation of tip growth in cells like root hairs.

This study found that stem cells derived from root apical papilla in extracted wisdom teeth demonstrated the strongest potential for osteogenic differentiation compared to those from dental pulp and dental follicle.

This study provides evidence for K1 and K10 derivatives' presence in the inner root sheath and hair cuticle, suggesting that these hair follicle parts may follow familiar keratinization principles.