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This study found that the serine protease BSSP is strongly expressed in mouse skin during carcinogenesis and is upregulated independently of c-Fos and unaffected by glucocorticoids.

This review discusses how epidermal Langerhan's cells and dermal cells may influence keratinocyte environments, potentially aiding in the formation of stem cell niches and cellular variety in the basal layer, without providing novel results.

This study found that trichoblastomas and nodular basal cell carcinomas have similar cytokeratin expression patterns, indicating differentiation towards the outer root sheath epithelium.

This chapter reviews the presence and roles of stem cells in various body systems, focusing on their lifelong function in animals and humans, and reports no new experimental findings.

This study found that human hair follicle dermal cells, specifically dermal sheath cells, can serve as an alternative and potentially superior cell source for constructing the dermal component of bioengineered skin in both in vitro and in vivo settings.

The study observed increased melanin and signs of skin aging in melasma-afflicted skin, with strong CK10 expression in the upper basal epidermis, potentially linked to excessive epidermal cell differentiation and aging.

Dr. Zitelli emphasized that "Mohs surgery" should only be called that when one doctor does both the surgery and pathology.

This study introduces the term "hair matrix cyst" for a cyst with both pilomatricoma and epidermal cyst characteristics, highlighting its potential for misdiagnosis among similar skin conditions.

This study found that Thy1+ keratinocytes in the basal layer of the interfollicular epidermis play a crucial role in epidermal homeostasis and wound repair, with their ablation impairing these processes.

This study found that TPA was significantly more effective than mezerein in inducing dark basal keratinocytes in mouse skin, which may be important in early tumor promotion stages.

This study reported significant upregulation and release of S100A4 in psoriatic skin, which may actively contribute to psoriasis pathogenesis.

This study found that loss of integrin-β4 or its ligand, laminin-α3β3ɣ2, in keratinocytes increases differentiation via delamination, and demonstrated a role for hemidesmosomes in epidermal differentiation through both mitotic and non-mitotic mechanisms, influenced by Notch signaling.

This study investigated the gene Col19a1, finding its expression is specific to certain cells during hair follicle development in mice, suggesting its potential role in hair follicle morphogenesis.

An intact skin barrier is crucial to prevent infection in cases of tether-induced tenosynovitis.

This article describes the skin changes seen in acute and chronic graft-vs-host reactions after bone marrow transplantation, highlighting the potential for early recognition due to the visibility of these changes, but reports no new clinical results.

In this study, researchers identified at least four distinct basal stem cell populations in the human interfollicular epidermis, each crucial for maintaining epidermal communication and homeostasis.

Substance P helps restore skin thickness and cell renewal when sensory nerves are reduced.

This review explores the role of Eph receptors and ephrins in skin cell processes, discussing their potential for therapeutic targeting in dermatological disorders, but it presents no new research findings.

This study found that calretinin immunoreactivity may help identify the innermost cell layer of the outer root sheath in anagen hair follicles and certain cutaneous adnexal proliferations with follicular, sebaceous, and eccrine differentiation.

This study found that RAR-gamma 1 mRNA is present in multiple skin layers and structures, suggesting a role in maintaining and differentiating normal epidermis and skin appendages.

This study found that keratin K14 expression occurs early in epidermal cell differentiation, while a hair-specific keratin is expressed later in hair matrix cells, suggesting developmental divergence between the two cell types.

This review discusses Wnt signaling pathways in skin development and stem cell regulation, highlighting potential interactions with other pathways but reports no new findings.

This study reports that the fatty acid composition in cell membranes of stratified squamous epithelium varies with keratinization patterns, showing a partial essential fatty acid-deficient state in cultured keratinocytes.

This study used single-cell RNA sequencing to identify at least nine subpopulations of keratinocytes in human neonatal epidermis, revealing unexpected heterogeneity and complex differentiation trajectories.

This review discusses the cell biological characteristics of the outer root sheath of normal human hair follicles and highlights some similarities and differences with trichilemmal tumors, but reports no new results.

This study demonstrated that hair follicle bulge stem cells can form epidermis in a tissue-engineered skin model, highlighting the significance of K5/K17 filaments in slow-cycling stem cell subsets.

This review outlines the histological structures of the skin, highlighting species and regional differences in dermal absorption and obstacles encountered in toxicological assessments due to epidermal thickness variability, contact dermatitis reactions, and stem cell vulnerabilities.

This study reveals that CSPG4-positive basal cell keratinocytes show distinct global gene expression from CSPG4-negative cells, despite similar colony-forming efficiency.

Basonuclin helps identify and track hair follicle development and cycling in mice.

Basonuclin is crucial for hair follicle development and cycling in mice.