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This study found that inhibiting mineralocorticoid receptor signaling in female human hair follicles may promote hair growth by extending the anagen phase and encouraging keratinocyte proliferation.

This review discusses the genetic factors involved in hair follicle morphogenesis and cycling and reports no new clinical results; it emphasizes the role of genes in hereditary hair diseases.

This study found that Edar signaling plays a role in regulating the hair cycle and apoptosis in hair follicle keratinocytes during the catagen phase in mice.

This review examines recent research on hair follicle stem cells, focusing on their maintenance, differentiation, and the potential for new follicle generation, but it reports no new experimental results.

This study found that lymphatic vessels play a crucial role in hair follicle growth and regeneration in mice by connecting hair follicles and expanding during stem cell activation.

This review examines the roles of adenosine and caffeine in regulating hair growth cycles but reports no new results, highlighting unanswered questions about their specific mechanisms.

This chapter reviews various in vitro and laboratory animal models for studying potential therapies for alopecia and reports no new results.

In this study, researchers used a new method with platelet-rich plasma-loaded microcarriers to enhance dermal papilla cell activity and hair follicle regeneration, achieving significant hair and vessel growth in a mouse model compared to control groups.

This study found that lymphatic vessels in mice are important for hair follicle development and organization, as their depletion blocks hair growth.

The researchers reported that in mice, prolactin signaling in the skin epithelium inhibits hair follicle stem cell activation, promoting quiescence during periods of high serum prolactin like pregnancy and lactation.

This study found that ICAM-1 expression in murine skin is developmentally regulated and crucial for skin and hair follicle remodeling beyond its recognized role in immune responses.

This study explored the immune environment of the hair follicle's bulge region and suggested that its unique signaling may prevent melanoma formation by lacking necessary proinflammatory signals for full oncogenic transformation, indicating potential strategies for melanoma prevention by replicating this immune-privileged environment.

This study found that polycomb-group-mediated repression plays a key role in regulating hair follicle stem cell states and lineage progression by distinct mechanisms in adult mouse skin.

This study found that PBX1 enhances the proliferation and reprogramming of hair follicle mesenchymal stem cells by activating the AKT/GSK3β signaling pathway, promoting NANOG expression, and inhibiting apoptosis.

This study found that synchronized signals in the microenvironment regulate stem cell lineage choices in hair follicles by influencing chromatin dynamics during regeneration.

This study found that methylene blue staining helped identify late catagen and telogen hair follicles more accurately than unstained follicles, which suggests that established telogen percentage standards may be overestimated.

In this study, researchers found that hair follicles and dermal fibroblasts, including dermal papilla cells, supported sustained hair growth in transplanted murine models, with RNA-seq analysis revealing active signaling pathways and gene expression patterns.

This review outlines the potential of using human pluripotent stem cells for hair follicle bioengineering, detailing current HF morphogenesis and cycling knowledge, various cell sources, and strategies using iPSCs, while discussing the challenges and prospects for therapeutic use in addressing hair loss.

This study found that overexpression of miR-214 in keratinocytes inhibits hair follicle development and cycling by targeting β-catenin in the Wnt signaling pathway.

In this study, researchers analyzed miRNA and gene expression in the hair follicles of FMD during different hair cycle stages, identifying differential expression patterns and key pathways involved in hair follicle development and growth.

This study found that biglycan, a protein secreted by dermal papilla cells, plays a critical role in hair follicle cycle regulation and regeneration in mice by activating the Wnt/β-catenin signalling pathway, suggesting its potential as a treatment target for hair loss.

This study found that sodium butyrate, a metabolite from the HF microbiome, significantly delayed catagen onset and promoted key physiological processes in cultured human hair follicles.

This study found that active BMP signaling prevents epithelial stem cell activation and expansion in hair follicles, while its inhibition leads to HF stem/progenitor cell overproduction and matricomas.

This study presents evidence that specific thymus-derived peptides affect human hair follicle growth, identifying thymulin as a potential hair growth stimulator despite interindividual response variations.

This review evaluates in vitro hair follicle models, techniques, and challenges without reporting new clinical results, emphasizing their future potential in hair transplantation.

This study found that constitutive activation of Stat3 in transgenic mice led to impaired hair growth and structural disorganization due to aberrant regulation of hair follicle and cytoskeletal genes.

This study found that decorin treatment significantly enhances dermal papilla cell proliferation, promoting hair follicle growth by influencing the SMAD3/TGF-β signaling pathway through exosomal miR-129–2-3p, which may aid in novel strategies for treating hair disorders and enhancing wool production.

This study observed that overexpression of Bcl-2 in certain transgenic mice accelerates catagen progression and increases hair follicle apoptosis and alopecia, while Bcl-2 deficient mice show delayed hair growth and pigmentation changes.

This study found that BMP2 and BMPR-IA inhibited, while Noggin promoted, hair follicle growth in yaks by affecting skin epithelial cell activity.

This article discusses the immune privilege in hair follicles and suggests that restoring its collapse might be an effective strategy for treating alopecia areata and cicatricial alopecia, but it reports no new clinical results.