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This review examines the location and markers of hair follicle stem cells, finding that they are primarily located in the bulge region and can contribute to various skin structures, but challenges remain in distinguishing them from their progeny.

This study found that the activation of ER‑β increased keratinocyte proliferation and gene expression related to epidermal regeneration, enhancing wound healing in both cell models and rats.

This study reports a semidominant inheritance of epidermolytic ichthyosis due to a KRT1 mutation, which was previously thought to be only inherited dominantly.

This study identified genes potentially involved in the development and differentiation of skin appendages in Atelerix albiventris, noting significant enrichment of immune-related genes in hair-type tissues.

Keratinocytes might turn into stem cells, but more research is needed to confirm this.

This study found that hair-type tissues in hedgehogs show higher enrichment of immune-related genes compared to spine-type tissues, suggesting that spines evolved to protect against injuries and infections.

This study found that molecular differences in paracrine factors between balding and non-balding hair follicles may enhance understanding of androgen action in hair disorders and potentially inform better treatments.

This review examines current knowledge on human epithelial hair follicle stem cells, their markers, and outlines challenges in translating findings from murine studies to human research, but does not report new experimental results.

This study found that keratinocyte stem cells in mouse skin are closely related to side population or BCRP1-positive cells based on their localization and marker expression.

Stem cells in developing hair follicles move to specific areas as they mature.

Human hair follicle stem cells show signs of low oxygen levels, which may be important for hair growth and preventing baldness.

This study found that when human hair follicles were grafted onto mice, they progressed through dystrophic stages and returned to normal growth, with stem cells aiding in recovery.

This study found that Ber-EP4 immunoreactivity is present in specific areas of hair follicles across different stages of the hair cycle, particularly in the secondary hair germ, but not in mature anagen follicles.

This study found that p-auricular skin sites produced higher quality keratinocyte cultures with more K19-positive cells compared to scalp and chest sites, despite scalp's higher stem cell content in situ.

This study found that a blackcurrant extract with phytoestrogen activity increased hair number and stem cell marker expression in a menopausal rat model, suggesting a potential benefit for hair loss.

This article reviews the current understanding of the localization, characteristics, and potential markers of epidermal stem cells, and reports no new experimental results.

This study found that using RADA16-I dressing led to more vigorous hair growth on deep burn wounds compared to other biological materials.

This study demonstrated a simple and efficient method to isolate epithelial cells from rat vibrissa follicles, reducing labor and contamination risk while maintaining positive K19 staining.

In this study, the researchers observed that transfecting hair follicle cells with an amino-terminal truncated beta-catenin gene significantly increased cell proliferation, potentially by enhancing c-myc gene expression.

This report describes a rare case of a three-day-old male with ichthyosis hystrix type of epidermal nevus, featuring specific skin and hair symptoms but no nail or skeletal abnormalities.

This study examined the expression patterns of various cytokeratins in the outer root sheath of human anagen hair follicles, noting distinct differentiation patterns and localization of keratin markers.

This study found that PDLLA filler treatment may help combat age-related hair thinning by reducing oxidative stress and enhancing hair follicle function in both cell and animal models.

This study found that keratins 5, 7, 8, and 19 are expressed in human trophoblast cells while vimentin is solely expressed in stromal-mesenchymal cells, aiding in placental cell type identification.

This model study describes how interactions between hair keratin and various materials alter hair's physical and mechanical properties by affecting noncovalent bonds.

This case report describes a 19-year-old woman with typical clinical and histopathological findings of trichofolliculoma, a rare hair follicle hamartoma usually located on the face or scalp.

Hair fibers may have a unique, non-protein sheath not previously identified.

Keratin structure changes during keratinization, but the exact model remains uncertain.

This review discusses changes in keratin structure or gene expression that result in various skin disorders and reports no new clinical findings.

This article reviews the composition and structure of mammalian hard keratins, focusing on the filamentous and nonfilamentous protein content, and reports no new experimental results.

This study found that conserved DNA motifs and expression patterns in keratin genes suggest functional regulatory similarities in hair follicle differentiation across different mammalian species.