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Considering the role of epidermal keratinocytes, they occupy more than 90% of the epidermis, form a physical barrier, and also function as innate immune barrier. For example, epidermal keratinocytes are capable of recognizing various cytokines and pathogen-associated molecular pattern, and producing a wide variety of inflammatory cytokines, chemokines, and antimicrobial peptides. Previous basic studies have shown that the immune response of epidermal keratinocytes has a significant impact on inflammatory skin diseases. The purpose of this review is to provide foundation of knowledge on the cytokines which are recognized or produced by epidermal keratinocytes. Since a number of biologics for skin diseases have appeared, it is necessary to fully understand the relationship between epidermal keratinocytes and the cytokines. In this review, the cytokines recognized by epidermal keratinocytes are specifically introduced as "input cytokines", and the produced cytokines as "output cytokines". Furthermore, we also refer to the existence of biologics against those input and output cytokines, and the target skin diseases. These use results demonstrate how important targeted cytokines are in real skin diseases, and enhance our understanding of the cytokines.
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http://dx.doi.org/10.3389/fimmu.2023.1239598 | DOI Listing |
J Vis Exp
August 2025
The Ragon Institute of Mass General, MIT, and Harvard Main Street;
Ultraviolet B (UVB) radiation (280-320 nm) has been recognized as a carcinogen since 1928, leading to sun exposure minimization. However, epidemiological studies suggest that sun exposure correlates with increased life expectancy and reduced incidence of cardiovascular diseases and certain cancers such as colon and endometrial cancer. UVB exposure also influences liver metabolism, protects against hepatocellular lipotoxicity, and affects metabolic health.
View Article and Find Full Text PDFAm J Dermatopathol
September 2025
Dermatology Service, Department of Medicine, Memorial Sloan Kettering Cancer Center, New York, NY.
Background: Dermatologic adverse events (dAEs) are prevalent with BCR-ABL tyrosine kinase inhibitors (TKIs), affecting quality of life and treatment adherence. Despite their prevalence, underlying mechanisms of toxicity remain unclear. We sought to characterize dAEs across TKI generations to elucidate mechanisms driving toxicities.
View Article and Find Full Text PDFCell Mol Biol (Noisy-le-grand)
September 2025
Arencibia Clinic, San Sebastian, Spain.
Follicular unit extraction (FUE) has become a leading technique in hair transplantation, yet optimal management of the donor area remains a clinical challenge. This systematic review analyzes intraoperative and postoperative interventions applied to the donor area in FUE hair transplantation, with a focus on both clinical outcomes and the cellular and molecular mechanisms involved in tissue repair, inflammatory response, and regenerative processes. A comprehensive literature search was conducted in PubMed and EMBASE (January 2000-June 2025), identifying clinical studies that evaluated donor area treatments and reported outcomes related to healing, inflammation, infection, and patient satisfaction.
View Article and Find Full Text PDFJ Invest Dermatol
September 2025
Department of Microbiology and Immunology, University of Maryland School of Medicine, Baltimore, MD, USA. Electronic address:
Wound healing has been extensively studied through the lens of inflammatory disorders and cancer, but limited attention has been given to hematophagy and arthropod-borne diseases. Hematophagous ectoparasites, including ticks, subvert the wound healing response to maintain prolonged attachment and facilitate blood-feeding. Here, we unveil a strategy by which extracellular vesicles (EVs) ensure blood-feeding and arthropod survival in three medically relevant tick species.
View Article and Find Full Text PDFInt J Pharm
September 2025
Department of Dermatology, The First Affiliated Hospital of Nanjing Medical University, Guangzhou Road 300, Nanjing, People's Republic of China; Engineering Research Center of Intelligent Theranostics Technology and Instruments, Ministry of Education, People's Republic of China. Electronic address:
Background: Ultrasound-assisted transdermal drug delivery, or sonophoresis, enhances skin permeability, offering a non-invasive alternative for drug administration. However, its clinical application remains limited because of an insufficient understanding of its underlying mechanisms and optimal parameters. This study investigates the factors influencing ultrasound-enhanced drug absorption and examines its biological effects on skin structures and HaCaT cells, providing a comprehensive analysis of its mechanisms.
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