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One of the most affected aspects of the aging process is immunity, with age-related immune system decline being responsible for an increase in susceptibility to infectious diseases and cancer risk. On the other hand, the aging process is accompanied with low-grade pro-inflammatory status. This condition involves a persistent rise in cytokine levels that can activate both innate and adaptive immune systems. Finally, despite the fact that immunological responses to antigenic stimulations decrease with age, the incidence and prevalence of many common autoimmune diseases increase in the elderly population. Overall, the co-existence of a prolonged, low-grade inflammatory status and declining immune activity appears to be a paradoxical phenomenon. This study characterized skin inflammation in mouse dermatitis model of various ages to monitor possible changes of inflammatory responses during aging.
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http://dx.doi.org/10.22074/cellj.2023.2001403.1301 | DOI Listing |
Probiotics Antimicrob Proteins
September 2025
School of Life Science, Liaoning Normal University, Dalian, 116081, China.
Cutibacterium acnes (C. acnes, formerly classified as Propionibacterium acnes) is a Gram-positive bacterium that contributes to the development of acne vulgaris, resulting in inflammation and pustule formation on the skin. In this study, we developed and synthesized a series of antimicrobial peptides (AMPs) that are derived from the skin secretion of Rana chensinensis.
View Article and Find Full Text PDFArch Pharm Res
September 2025
College of Pharmacy and Medical Research Center, Chungbuk National University, 194-21, Osongsaengmyeong 1-ro, Osong-eup, Cheongju-si, Chungcheongbuk-do, 28160, Republic of Korea.
Atopic dermatitis (AD) is an inflammatory skin disease that produces a variety of inflammatory cytokines and chemokines. Chitinase-3-like protein 1 (CHI3L1, YKL-40) significantly contributes to AD-associated inflammatory response and is highly expressed in patients with AD. Therefore, this study elucidated the effects and potential mechanisms of human YKL-40 antibody on AD-affected skin.
View Article and Find Full Text PDFJ Cutan Med Surg
September 2025
FACET Dermatology, Toronto, ON, Canada.
Adv Mater
September 2025
Department of Mechanical Engineering, Pohang University of Science and Technology, Pohang, 37673, South Korea.
Wearable bioelectronics have advanced dramatically over the past decade, yet remain constrained by their superficial placement on the skin, which renders them vulnerable to environmental fluctuations and mechanical instability. Existing microneedle (MN) electrodes offer minimally invasive access to dermal tissue, but their rigid, bulky design-often 100 times larger and 10,000 times stiffer than dermal fibroblasts-induces pain, tissue damage, and chronic inflammation, limiting their long-term applicability. Here, a cell-stress-free percutaneous bioelectrode is presented, comprising an ultrathin (<2 µm), soft MN (sMN) that dynamically softens via an effervescent structural transformation after insertion.
View Article and Find Full Text PDFAllergol Immunopathol (Madr)
September 2025
Inflamm-Aging Translational Research Center, Ajou University Medical Center, Suwon, Republic of Korea;
Thunberg is a perennial herbaceous plant of the genus that belongs to the Apiaceae family and is effective in improving inflammation, gout, and dizziness. However, the skin pruritus improvement effect and mechanism of action of Thunberg root extract (PJRE) have not yet been reported. We investigated the effects of PJRE on the regulation of pruritus and inflammatory responses in compound 48/80 (C48/80)-treated mice, phorbol 12-myristate 13-acetate (PMA)/A23187-induced human skin mast cells, and LPS-stimulated mouse macrophages.
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