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This paper explores the complex immune processes and cellular diversity that enable the skin to heal and resist invasion, and highlights its potential as a model for studying regeneration.

This study explores the role of cell competition in maintaining genomic quality in epidermal stem cells and proposes that this process might influence cancer development in skin tissues.

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

This review discusses the skin's role in producing hormones and related substances, highlighting their potential in homeostasis and disease management, and reports no new clinical findings.

This case study documented a black male newborn developing large bullae that healed with hypopigmentation, suspecting proteolytic enzymes in keratinocytes caused the collagenolysis responsible for the condition.

This study found that the dermal sheath smooth muscle regulates hair follicle progenitor cell death during hair regression through mechanical signaling of the TGF-β pathway.

This study found that α-MSH acts as a modulator of inflammatory and fibrogenic responses in human fibroblastic skin cells, indicating potential therapeutic options for fibrotic skin disorders and inflammatory diseases of the hair follicle.

This symposium reviewed various advances in understanding and potentially reversing skin aging, with no new experimental results reported.

This study reports that incorporating Lef-1 transfected dermal papilla cells into human skin equivalents significantly promoted hair follicle differentiation and hair fiber growth, offering a potential advancement for managing skin loss.

This study used electron microscopy to identify a distinct dendritic cell in the human epidermis, similar to the melanocyte, with unique structural features and variable melanin content.

This study demonstrated that cultured human dermal papilla cells can induce full hair follicle formation when combined with neonatal foreskin keratinocytes in a grafted dermal-epidermal construct on mice.

RCS-01 is safe and may help rejuvenate aging skin.

This study describes a new tissue culture method that successfully induces outer root sheath cells from hair follicles to differentiate into a multilayered epithelium with characteristics similar to normal interfollicular epidermis.

In this study, the researchers found that combining physical dermabrasion with chemical peeling increased growth factors and neuropeptides more than chemical peeling alone in porcine skin samples.

In this study with a rat muscle defect model, decellularized muscle matrix demonstrated better integration, neovascularization, and myogenesis compared to commercially available acellular dermal matrices, and also showed trends toward reduced inflammation and fibrosis after 30 and 60 days.

This animal study found that transparent porcine-derived Type I atelocollagen increases skin thickness and regenerates elastic fibers in aged mice, suggesting its potential as a skin booster for rejuvenation.

Certain substances can help skin cells become anti-inflammatory, aiding in tissue repair.

This article discusses the structure and function of the skin's epidermis, detailing its role as a protective barrier and nutrient exchange system, without presenting new research findings.

This study explores the transformative role of tissue engineering in cosmetics, highlighting innovations like lab-grown skin and personalized grafts that enhance product efficacy, offer ethical alternatives to animal testing, and address aesthetic issues such as scarring and aging.

This study introduced a bioengineering platform that creates early-stage hair peg-like structures within tissue-engineered skin substitutes by integrating human keratinocytes and dermal papilla cells with laser-micropatterned collagen scaffolds, providing a foundation for future appendage-inclusive skin regeneration efforts.

This review examines the role of vitamin D and its receptor in skin functions, exploring mechanisms regulating proliferation, differentiation, immunity, and tumor suppression, without reporting new research findings.

In this study, engineered skin substitutes containing murine dermal papilla cells developed hair follicle-like structures when grafted onto mice, suggesting a model for generating chimeric hair.

This review discusses the cutaneous serotoninergic/melatoninergic system's potential role in skin function and resilience against environmental and internal stresses, but does not report new experimental findings.