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This paper reviews the evolution of skin appendages and keratin-associated proteins among amniotes, proposing a model for their genetic divergence without new experimental results.

This article describes the structure of ovine interdigital sinuses using scanning electron microscopy, highlighting features such as dense secretory material, hair presence, and classical apocrine secretion characteristics.

This study identified Sciellin, a new protein precursor to the cornified envelope in keratinocytes, with unique solubility properties hinting at its potential role in envelope assembly.

Vertebrate skin evolved to be more specialized and complex, especially in land animals.

This study indicated that abnormal Bmp signaling in β-catenin gain-of-function mutants is associated with anorectal malformations, shedding light on potential mechanisms underlying these congenital conditions.

This study presents a new, effective method for delivering dental epithelial stem cells to the jaw, aiming to advance therapies for enamel defects and regeneration.

This article reviews the use of mesenchymal stem cells and biomimetic scaffolds in regenerative medicine, highlighting promising in vitro and in vivo outcomes, but it reports no new clinical results.

In this study, Meis1 was found to regulate epidermal homeostasis and act as a proto-oncogenic factor in skin tissues, with differences in expression patterns between normal and tumor cells.

This study found that combining hair follicle-derived smooth muscle cells with a natural biomaterial created vascular constructs with mechanical and functional properties similar to native arteries, suggesting potential for arterial implantation.

This study observed that cathepsin L and transglutaminase 3 colocalize in the human hair bulb and nail matrix, suggesting their involvement in terminal differentiation within these epidermal appendages.

This study reports that transplantation of an ESCs-collagen-chitin biomimetic membrane leads to successful in situ skin regeneration, including hair follicle cell proliferation and formation of dermatoglyphs, in nude mice with full-thickness skin defects.

This study found that epithelial components of calcifying epithelioma of Malherbe showed lectin binding and keratin staining patterns similar to normal hair follicles, with prominent Con A staining in tumor giant cells.

This study identifies cartilage oligomeric matrix protein (COMP) as a key extracellular matrix component in human hair follicle cycling, potentially regulated by TGFβ signaling, and suggests its importance in normal hair follicle biology.

This study characterized human Wharton's Jelly Mesenchymal Stem Cells (hWJ-MSCs) isolated from umbilical cords using explant and enzymatic methods, finding both methods yielded high-purity cells capable of differentiating into adipocyte, chondrocyte, and osteocyte lineages, showing promise for regenerative medicine applications.

This study introduces a new type of tissue micromodule, the micro tissue precursor (μTP), which can form complex 3D tissues, including lung stroma and skin models supporting hair viability.

This study revealed that during fetal development, MITF and Mart-1 expressing melanocytes progress from the dermis to the epidermis and hair follicles, with MITF possibly marking follicular stem cells.

This study found that medullary cell content in mammal hair evolves from an amorphous form to a biphasic phase, with human and anthropoid hair containing both macrofibrils and microfibrils.

This study found that Fibroblast growth factor-9 (FGF-9) accelerates epithelial invagination in engineered ectodermal organs and suggests its potential role in organogenesis and regeneration research.

This study found that mesenchymal cells from adult mouse whisker follicles differentiated into odontoblast-like cells, demonstrating odontogenic potential in a specialized microenvironment both in vitro and in vivo.

This study found that desmosomal adhesion plays a crucial role in epithelial morphogenesis and cell positioning, equivalent in importance to that of adherens junctions.

This report describes a pancreatic mixed acinar-neuroendocrine carcinoma in a cat, underscoring its diagnostic complexity and the need to consider it in diagnoses of pancreatic masses with mixed features.

This review discusses historical and recent advances in understanding the embryonic organizer's role in patterning during development, including molecular pathways and future research challenges, but reports no new experimental data.

This overview examines the biology, origin, structure, and function of various cells and structures, such as the blood-retinal barrier and Merkel cells, and discusses their roles in disease pathogenesis, along with recent findings related to the lymph nodes' paracortex.

This review suggests that telocytes in male reproductive organs help organize tissue structure and paracrine factors, impacting organ development and pathology, but more research is needed on their molecular pathways.

This study found that cystatin M/E strongly inhibits human cathepsin V and cathepsin L via distinct non-overlapping sites, suggesting an important role in human epidermal differentiation and hair follicle morphogenesis.

This study observed that the mechanical connection between hair follicles and connective tissue in human fetal scalp skin is weaker than in the corresponding skin components, reflecting dynamic processes in hair growth.

This study demonstrated that a mechanical-chemical cascade involving dermal cell contraction and the activation of Piezo1 in epidermal cells is crucial for initiating interactions necessary for hair follicle regeneration in skin organoids.

This review discusses strategies and translational advancements in urethral tissue engineering, concluding that a combination of hypoxia-preconditioned mesenchymal stem cells on pre-vascularized synthetic scaffolds may be most effective; it reports no new clinical results.

This study found that solid basal cell epitheliomas and the outer root sheath of human hair follicles display nearly identical cytokeratin profiles, suggesting a potential origin connection.

This review discusses the current understanding of tooth-derived stem cells for periodontal tissue engineering and highlights the heterogeneity and lack of standardization in selecting appropriate stem cell populations; it reports no new experimental results.