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This study found that exosomes derived from dermal papilla cells can enhance the proliferation of hair follicle stem cells by stimulating the LEF1 pathway, offering insights into hair follicle growth regulation.

In this study using a mouse model, the researchers found that platelet-rich plasma significantly increased the number of newly formed hair follicles and decreased the time for hair formation compared to no treatment.

Dental professionals should ensure safety in facial aesthetics by being properly trained and registered.

This review discusses mesenchymal–epithelial interactions in hair follicle development and cycling, highlighting recent insights without reporting new experimental results.

This study found that mature dermal adipocytes have high plasticity, undergoing dedifferentiation and redifferentiation, which plays a significant role in hair cycling and wound healing.

This review discusses current experimental approaches for regenerating human hair follicles using tissue engineering and isolated cells, but reports no successful strategies with adult cells yet found.

This review discusses the paracrine effects of adipose tissue-derived stem cells on surrounding cells and tissues, noting their potential therapeutic benefits, but reports no new clinical results.

This study demonstrated that an engineered human skin equivalent can generate follicle-like structures resembling fetal skin, highlighting the role of the dermal compartment in directing epithelial cell fate in vitro.

This study found that conditioned medium from keratinocytes improved the hair-inductive properties of cultured dermal papilla cells, suggesting potential for enhancing hair follicle regeneration.

This review discusses the current challenges and strategies in hair follicle bioengineering for treating hair loss and reports no new clinical results; it highlights ongoing hurdles and future directions for developing functional hair regeneration therapies.

In this study, mixing mouse epithelial and dermal cells was the most successful method for reconstituting hair follicles in mice, with the hair patch assay providing the quickest results.

This study found that topically delivering KGF-1 DNA plasmid increased epithelial thickness and skin strength, suggesting potential benefits for strengthening compromised skin.

This review discusses age-related changes in scalp skin and their potential effects on hair follicle aging, but reports no new clinical results, calling for further investigation.

This study found that 5% primed conditioned medium from human umbilical cord blood-derived mesenchymal stromal cells significantly improved hair density, thickness, and growth rate in patients with androgenetic alopecia.

This study found that VB-1, a vitexin compound, may promote hair follicle growth by enhancing Wnt/β-catenin signaling in human dermal papilla cells in vitro.

This article discusses the role of androgens in hair follicle changes, explaining how dihydrotestosterone contributes to hair thinning on the scalp, while promoting thicker facial hair in men, and reports no new clinical results.

This study suggests the possibility of regenerating hair follicle structures in vitro using hiPSC-derived cell composites, which might reduce reliance on human tissue-derived cells for hair bioengineering.

This study found that mutant mice with the we/we wal/wal genotype exhibit significant defects in hair shaft structure and epidermis stratification, correlating with postnatal alopecia symptoms.

In this study, mangosteen pericarp water extract was found to significantly promote hair dermal papilla cell proliferation and enhance melanin synthesis in vitro, surpassing known melanogenic agents such as α-melanocyte stimulating hormone and forskolin in potency.

This study found that EGR1 promotes the proliferation of dermal papilla cells, suggesting its close association with hair follicle growth and development.

In this study, androgens were found to stimulate keratinocyte growth in co-culture with beard dermal papilla cells but inhibit it in co-culture with balding frontal scalp DPCs, mediated by TGF-beta1.

This article discusses the structures surrounding hair follicles and introduces aspects like follicle groups and the dermal sheath, but it reports no new research findings.

This review discusses recent advances in hair follicle research, highlighting therapeutic and cosmetic applications, but reports no new study results.

This review evaluates the clinical use of composite dermal-epidermal skin substitutes, with a focus on advancements such as the "BioMask" for facial skin trauma, highlighting the potential of 3D bioprinting and bioengineered skin in improving wound treatment and reconstruction.

A new method improves the isolation of hair follicle cells for better hair growth research.

This study observed that incorporating human follicle dermal papilla cells into fibrin microgels increased cell viability and the formation of hair follicle structures in in vitro skin cultures compared to traditional dermal papilla spheroids, suggesting a promising approach for hair follicle regeneration therapies.

In this study, various types of minor hair follicle damage were observed during follicular unit extraction, with paring and hair bulb injury being more apparent under microscopic examination.

This review discusses the diverse roles and characteristics of epidermal and dermal stem cells in skin regeneration and aging, highlighting their potential applications in regenerative medicine and reports no new clinical results.

This review discusses various methods for processing and separating human skin samples for research purposes, evaluating factors like processing time and cell viability, but reports no new experimental findings.

Hair growth is cyclic and influenced mainly by local factors.