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This study used cashmere goats to reveal distinct intermediate states of dermal papilla cells, each with specific roles in hair growth, shedding, and regeneration.

This study found significant upregulation of IDO-1 and IDO-2 in human basal cell carcinomas, suggesting that IDO production may confer immune privilege characteristics to the tumors, potentially impacting their growth.

This study suggests that human trichohyalin may function as a flexible rod linking keratin intermediate filaments and as a scaffold protein in hair follicle and epidermis cell envelopes.

This study found that local refinement of hair follicles into higher order patterns can occur without the core planar cell polarity system, but global alignment with body axes requires its function throughout development and regeneration.

This review discusses recent advances in imaging techniques for monitoring stem cells in vivo and reports no new results; it suggests directions for future development in endoscopic molecular imaging tools.

This study found that α-melanocyte-stimulating hormone may modulate inflammation in skin connective tissue by inhibiting proinflammatory effects in fibroblasts.

This review highlights single-cell sequencing's role in understanding macrophages' diverse functions and subtypes in skin wound healing, emphasizing macrophages' importance in tissue restoration and identifying key genes involved in the process.

This study identified specific genes upregulated in skin γδ T cells involved in alopecia areata, with findings suggesting these cells contribute to disease pathogenesis through inflammatory and Th1 response mechanisms in mouse and possibly human skin.

This study identified at least four distinct fibroblast populations in adult human skin, each with unique functional properties, suggesting potential therapeutic applications for wound healing and fibrosis-related diseases.

This review discusses the role and regulation of quiescent adult stem cells in tissue maintenance and repair, focusing on molecular mechanisms and their implications for regenerative medicine, but reports no new clinical results.

This study found that adipose-derived mesenchymal stem cells produced more anti-inflammatory and pro-angiogenic cytokines on electrospun scaffolds, which enhanced wound healing and macrophage activity in a rat model.

This review examines how epigenetic dysregulation affects adult stem cell function, noting that impacts range from minor to serious disruptions in tissue homeostasis and potential cancer development.

This study found that L-type channel blockers can induce hair growth in Timothy syndrome by overcoming delays in anagen phase, suggesting a potential therapeutic role for tissue regeneration.

This study found that the anti-apoptotic Bcl-2 protein plays a crucial role in maintaining hair follicle stem cell function and influences tissue regeneration and tumor formation in mice.

In this study, researchers using a Treg-specific HuR-deficient mouse model found that the RNA-binding protein HuR is crucial for stabilizing Foxp3 mRNA, affecting Treg function and immune regulation, with HuR disruption leading to impaired Foxp3 expression and potential autoimmune dysfunction.

New treatments using stem cells and other methods show promise for promoting hair growth in androgenetic alopecia.

Matriptase is crucial for skin barrier, hair growth, and may contribute to skin cancer.

This study found that small proline-rich proteins modify the biomechanical properties of cornified cell envelopes in rodent forestomachs, potentially affecting the tissue's ability to withstand mechanical stress.

This study suggests that the structure and function of mouse melanocytes in the epidermis and hair bulb are influenced by genetic factors and local tissue environment, including hormones and growth factors.

This study found that human trichohyalin has a unique protein sequence potentially contributing to at least three important functions in hair follicle and epidermal cells.

This study found that a mesenchymal stromal cell-derived regenerative extracellular matrix (rECM) significantly accelerated wound closure and improved healing in diabetic mice, also enhancing nerve and blood vessel formation compared to controls.

This study indicates that CD4 protein may have a functional role in basal cell-like keratinocytes through TCR/CD3-independent signaling, affecting their proliferation, differentiation, and migration.

This study found that aging in the epidermis disrupts cytokine balance and stem cell function, which may contribute to broader tumor-suppressive mechanisms.

This study found that absence of the vitamin D receptor in keratinocytes impairs canonical Wnt signaling and leads to alopecia due to defects in keratinocyte stem cells.

This review discusses the dynamic, niche-driven regulation of stem cell states in tissue homeostasis and regeneration, focusing on epithelial stem cells in the mammalian skin, intestine, and lung, without providing new experimental results.

This study found that A-ring reduced derivatives of norethisterone and levonorgestrel exhibit estrogen-like potency in rat osteoblasts, suggesting a mechanism for 19-norprogestins' bone restoration effects in postmenopausal women.

This study found that applying ferrous ferric chloride skin lotions to newborn mice stimulated skin cell proliferation and differentiation, increased hair growth, and inhibited alopecia-related hair loss.

Proteins like aPKC and PDGF-AA, substances like adenosine and ATP, and adipose-derived stem cells all play important roles in hair growth and health, and could potentially be used to treat hair loss and skin conditions.

This study found that deleting specific super-enhancer regions in mice affects CD25 expression in a cell type-specific manner, leading to autoimmune alopecia in some cases and revealing distinct regulatory mechanisms for constitutive and inducible expression of CD25.