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This study found that human hair follicles express erythropoietin and its receptor, suggesting these follicles may use erythropoietin signaling to modulate apoptosis under stress conditions like hypoxia and chemotherapy.

In this study, fibronectin coating on a low-adhesive substratum increased cell aggregation, growth, and motility, enhancing the formation of hair follicle dermal papilla spheroids.

This study found that the dermal papilla of the hair follicle regulates stem cell quiescence and regeneration by modulating Shh and Wnt signaling pathways, highlighting the importance of signaling cross talk in regeneration.

This study found that the loss of Smad4 in keratinocytes reduces Dsg4 expression via disrupted BMP signaling, contributing to hair follicle degeneration and alopecia.

This study found that transplanted microencapsulated dermal papilla cells in rat footpads can regenerate hair follicles and sebaceous gland structures, suggesting a potential substitute for fresh dermal papillae cells.

This study established an androgen-responsive human organ culture model using hair follicles, demonstrating that women's intermediate facial follicles grow more hair in response to men's higher androgen levels.

In this study, applying FGF-2-containing dalteparin/protamine nanoparticles to the scalp was associated with a significant increase in hair diameter over six months among participants with thin hair.

This review discusses environmental factors like UV radiation and smoking that affect hair health and highlights the potential role of nutrition, but it reports no new results.

This chapter discusses the skin stem cell niche as a complex ecosystem and highlights the diverse components and interactions that influence stem cell function, but it reports no new experimental results.

This study developed a new human hair research model combining 3D spheroid dermal papilla fibroblasts with plucked anagen hair shafts, potentially improving the evaluation of hair follicle differentiation.

This study found that Plumbago zeylanica extract and its component plumbagin may help prevent androgenetic alopecia by promoting dermal papilla cell growth and reducing SRD5A2 expression.

This study found that implanting microencapsulated dermal papilla cells in rat ears led to hair follicle regeneration, suggesting a potential alternative to fresh isolated dermal papillae for inducing hair growth.

This study suggests that the expression of the DP2 receptor is higher in balding scalp cells and that its knockdown could inhibit the transition to the catagen phase in cultured human hair follicles, potentially counteracting hair growth inhibition associated with male pattern baldness.

In this study, researchers found that Hdac1 and Hdac2 are crucial for maintaining the quiescence and survival of dermal papilla cells in the hair follicle, regulating the hair cycle by controlling cell-cycle genes and Wnt signaling.

STAT5 is crucial for hair growth in 3D cultured human dermal papilla cells.

This chapter reviews the use of electrospun matrices in creating tissue-engineered skin substitutes and reports no new clinical results; it emphasizes the need for a cell-friendly microenvironment.

This study identified hypericin and berberine as compounds that can support hair growth by enhancing oxytocin receptor expression and acting as an oxytocin receptor agonist, respectively, potentially serving as practical alternatives to oxytocin for treating hair-loss diseases.

This study found that new methods for isolating human dermal papilla cells were more efficient than traditional methods, maintaining higher levels of specific markers and improving the cells' research potential.

In this study, researchers found that the synthetic stress hormone dexamethasone caused opposite effects on hair growth-related proteins, reducing SFRP2 and increasing SFRP3, which respectively stimulate and inhibit hair follicle cell proliferation in human dermal papilla cells.

T cells and bacteria in the gut and skin help maintain health and protect against disease.

This study suggests that analyzing hair samples with a liquid chromatography-mass spectrometric assay may offer a reliable method to measure average quarterly vitamin D levels, potentially complementing blood tests.

This study reviews the potential of stem cell-based therapies, including transplants and exosome treatments, to reactivate hair follicle stem cells and promote hair growth in individuals experiencing pattern hair loss.

This review discusses advancements in regenerative medicine for hair loss treatments, highlighting stem cell techniques for rejuvenating or creating hair follicles, but provides no new clinical results.

This study found that human dermal fibroblasts can promote the viability and proliferation of microvascular endothelial cells in vitro, revealing important interactions at play in hair growth.

This research found that Foxc1 transcription factor and COL17A1 are critical in regulating quiescence and hair thinning in hair follicle stem cells, with aging-related DNA damage leading to hair loss.

This study suggests that oxidative stress may contribute to androgenetic alopecia by inducing premature senescence and secretion of hair growth inhibitors in dermal papilla cells from balding scalp.

This review discusses the role of gut microbiota in autoimmune and immune-mediated dermatological conditions like lupus and psoriasis, but reports no new clinical results; the authors emphasize the need for further study into microbial signatures and treatments.

This study found that Wnt ligands from CD133-positive dermal papilla cells are essential for maintaining hair growth by supporting cell signaling between different hair follicle structures.

This review suggests that dermatological cosmetic procedures can be safely performed on dark-complexioned skin with appropriate treatment adjustments, highlighting the need for careful consideration to prevent adverse effects.

This study found that fetal canine hair follicle-derived stem cells exhibited pluripotency markers, suggesting potential for therapeutic applications in hair and skin repair.