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This study identified two cell surface markers, FAP and CD90, that distinguish between papillary and reticular fibroblasts in human skin, suggesting distinct functions and distribution in dermal layers.

This study found that combining adult germinative epidermal cells with non-inductive dermal cells can stimulate hair follicle neogenesis, effectively altering the cells' status to enhance induction.

In this study, mannosylerythritol lipids from soybean oil notably increased fibroblast and papilla cell viability, suggesting potential as a hair growth agent.

Mechanical stretching can improve or hinder skin regeneration depending on duration.

This study found that GelMA/HAMA bioink shows promise for 3D printing skin equivalents, as it effectively mimics the native skin's properties and supports hair follicle structure development.

This study found that hair follicle cells' growth in vitro is influenced by the concentration of androgens and antiandrogens, with papilla cells and outer root sheath keratinocytes showing distinct sensitivity.

This study observed that Hedgehog signaling in reticular and papillary fibroblast lineages plays different roles in wound repair and de novo hair follicle formation.

The researchers reported that marine-derived saccharides, specifically L-fucose and chondroitin sulphate disaccharide, supported skin and hair health by promoting cellular proliferation, enhancing extracellular matrix production, and aiding the hair cycle's growth phase, potentially minimizing aging effects.

This study reported that Hedgehog signaling in papillary fibroblasts is crucial for hair follicle regeneration during wound healing, emphasizing its potential for developing regenerative therapies in scarring wounds.

This study found that testosterone and dihydrotestosterone significantly decreased the proliferation of papilla cells compared to dermal fibroblasts and outer root sheath keratinocytes in cultured hair follicle cells.

This case report describes an adult female with concurrent mycosis fungoides and papillary dermal elastolysis, highlighting the importance of considering rare presentations in differential diagnoses.

This study found that overexpression of PKCepsilon in transgenic mice reduced papilloma development but accelerated carcinoma formation in a skin tumor promotion model.

This study reported that high ornithine decarboxylase expression and decreased keratin K1 and K10 expression may serve as useful markers for early stages of tumor development in mouse skin.

This study found that inhibiting C/EBP transcription factors in mouse skin reduced papilloma formation and caused systemic hair loss, suggesting C/EBP may be a potential therapeutic target.

This report describes the clinical presentation of Papillon-Lefèvre syndrome in two brothers and reviews the related literature, without providing new clinical outcomes.

This letter describes cases in which papilledema and other symptoms in young girls were attributed to hypervitaminosis A.

This case study highlights the unique occurrence of Papillon-Lefévre syndrome in two siblings from a consanguineous family, emphasizing the potential role of genetic factors in the disease's development.

This study demonstrates that Sox2-positive dermal papilla cells specify particular hair follicle types by showing heterogeneity in gene expression and pathway activation in these cells.

This study found that in mice, inactivating beta-catenin in the dermal papilla reduces hair follicle progenitor proliferation and disrupts the hair cycle.

This study found that altering cell culture conditions to form three-dimensional papilla spheroids can restore the ability of human dermal papilla cells to induce hair growth in adult skin.

This study found that the volume of a hair follicle's dermal papilla is strongly correlated with its size, primarily due to the number of cells it contains and the volume of extracellular matrix.

This study found that dermal papilla cells from balding scalp hair follicles have significantly higher levels of androgen receptors than those from non-balding follicles, supporting their in vivo androgen response.

In this study, researchers found that the number of dermal papilla cells in hair follicles determines hair size and shape in mice, suggesting potential avenues for addressing hair loss.

This study found that dermal papilla and peribulbar dermal sheath cup cells in mice can both induce hair follicle formation, suggesting they may have similar functional roles in hair growth.

This study found that minoxidil significantly increases VEGF mRNA and protein expression in dermal papilla cells, suggesting a role in enhancing hair follicle vascularization in androgenetic alopecia.

In this study, androgen did not affect keratinocyte growth in coculture with androgenetic alopecia-derived dermal papilla cells, but did significantly suppress keratinocyte growth when androgen receptor was overexpressed in the papilla cells.

This study found that trichocytic cytokeratins, typically found in hair, are also present in nails, filiform papillae of the tongue, and the epithelial reticulum of the thymus.

This study identifies a bipotent stem cell in adult hair follicles that self-renews and contributes to dermal sheath and papilla cell populations, potentially aiding hair regrowth after injury, disease, or aging.

This study suggests that IGF-I may mediate androgen-induced hair growth in outer root sheath cells cocultured with beard dermal papilla cells.

The researchers reported that DHT-inducible DKK-1 may play a significant role in DHT-driven balding by inhibiting hair follicle cell growth and promoting apoptosis in androgenetic alopecia.