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This article reviews topics from the American Academy of Veterinary Dermatology and American College of Veterinary Dermatology Annual Meeting and contains no new clinical findings.

This study systematically reviews the Wnt/β-catenin signaling pathway, discussing its origin, composition, function, involvement in tumors and diseases, and the development of small-molecular compounds targeting this pathway for disease treatment.

This review discusses the biological roles and diagnostic significance of keratins in mammalian colon epithelial cells and reports no new clinical results.

This review focuses on S100A6, a Ca²⁺-binding protein, detailing its role in cell functions, the regulation of its expression, and its potential as a biomarker and therapeutic target in various diseases.

This review discusses the potential of using human pluripotent stem cells to generate new hair follicles, though practical challenges remain before it can be applied for hair restoration.

This review discusses the niches supporting adult stem cells in various organisms, including well-studied germline niches and the less understood mammalian niches, but it reports no new research findings.

This review discusses strategies for identifying and characterizing adult stem cells in mice and highlights their potential and limitations, but reports no new experimental results.

In this study, K19-lacZ transgenic mice exhibited epithelial-specific reporter gene expression in tissues such as the pancreas and stomach, suggesting the K19 promoter is a valuable tool for studying epithelial cell biology.

Protein ubiquitylation is crucial for controlling stem cell functions and could be targeted for cancer treatment.

This review discusses how immune mechanisms contribute to the regeneration and repair of epithelial tissues and highlights their potential role in both disease and therapeutic innovation; it reports no new clinical results.

This review discusses recent advancements in the study and application of epidermal stem cells for wound healing and tissue engineering, without presenting new experimental findings.

This study found that keratin K80, structurally similar to hair keratins, is broadly expressed in various epithelial tissues and is involved in intermediate filament formation with multiple type I partners.

This review summarizes evidence suggesting that metabolism actively influences stem cell fate in intestinal and hair follicle stem cells, rather than being a mere environmental byproduct.

This review discusses the roles of the transcription factor SOX9 in organ development and maintenance, providing insights into its regulation and diverse functions, but reports no new experimental results.

This study demonstrates the potential of infrared spectral imaging to assess hair follicle structures and heparan sulfate proteoglycan distribution across different phases of the hair growth cycle, offering promise for alopecia research.

This review highlights the complications of radiation therapy, specifically radiation cystitis, and explores the potential of mesenchymal stem cell-based therapies for tissue repair while discussing their therapeutic potential and limitations.

This review highlights the regenerative abilities of *Xenopus laevis*, focusing on how tadpoles regrow complex tail structures and the cellular and molecular mechanisms behind this. It underscores *X. laevis* as a valuable model for understanding regeneration, with insights potentially advancing regenerative medicine.

This review highlights that skin organoids, advanced three-dimensional models mimicking human skin, are emerging as effective alternatives to traditional culture models and human skin, overcoming limitations of two-dimensional systems and ethical concerns, and are being increasingly used in areas like developmental biology and disease modeling.

This review discusses the role of stem cell heterogeneity and compartmentalization within the epidermis and highlights their significance as niches for neighboring cells, without reporting new experimental results.

This review summarizes recent insights into the developmental origin and formation of tissue stem cells across various organs, reporting no new experimental results.

This article reviews the role of stem cells in tissue development, tumor formation, and organoid generation, and highlights the potential of epigenetic regulation in advancing regenerative medicine and cancer treatment, without presenting new experimental results.

This study established a new in vitro culture system that supports the growth and dynamic self-organization of hair follicle stem cells and their progeny, promoting a stable population equilibrium.

This study reports the crystallization of the human androgen receptor's ligand-binding domain with nonsteroidal ligands, which may aid in understanding the differences in binding compared to steroidal ligands.

This article reviews the biology of epithelial stem cells and their role in tissue self-renewal, maintenance, and regeneration, and it highlights the clinical implications of understanding their signaling pathways, but it presents no new clinical findings.

This review discusses the role of Lgr5 as a marker for identifying adult stem cells, particularly in the intestine and hair follicles, and reports no clinical results.

This review discusses the role of stem cell progeny as integral components of stem cell niches, offering feedback that may influence different stem cell systems' microenvironments, but it presents no new research findings.

This review discusses the distinct roles and surprising developmental flexibility of multiple somatic stem cell types in tissue maintenance and repair, reporting no new results but highlighting emerging questions about their regulation and origins.

This study found that matriptase, a membrane serine protease, is crucial for maintaining multiple types of epithelial tissues in mice, with its absence leading to severe organ dysfunction and increased permeability.

This review discusses recent findings on the plasticity and regulation of epithelial stem cells and reports no new experimental results.

This review discusses the progress in identifying stem cells responsible for tissue regeneration and highlights technological advances in tracking their behavior, but reports no new clinical results.