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Extracellular vesicle-associated miR-ERIA exerts the anti-angiogenic effect of macrophages in diabetic wound healing.
Diabetes
January 2025
Department of Endocrinology, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, China.
Many cell types are involved in the regulation of cutaneous wound healing in diabetes. Clarifying the mechanism of cell-cell interactions is important for identifying therapeutic targets for diabetic cutaneous ulcers. The function of vascular endothelial cells in the cutaneous microenvironment is critical, and a decrease in their biological function leads directly to refractory wound healing.
View Article and Find Full Text PDFReplicating Dynamic Immune Responses at Single-Cell Resolution within a Microfluidic Human Skin Equivalent.
Adv Sci (Weinh)
January 2025
Centre for Cell Biology and Cutaneous Research, Blizard Institute, Queen Mary University of London, 4 Newark Street, London, E1 2AT, UK.
To enable in vitro investigation of human skin immunology, this study develops a microfluidic human skin equivalent (HSE) that supports the delivery of circulating immune cells via a vascular microchannel embedded within the dermis of a full-thickness construct. Within this platform, activation of keratinocyte inflammation promotes monocyte migration out of the vascular channel and into the dermal and epidermal compartments. Single-cell transcriptomic analysis reveals dynamic and cell-specific patterns of gene expression that are characteristic of acute activation and resolution of an inflammatory immune response, and the gene signatures of the monocyte-derived cells closely matches the differentiation trajectory of the monocytes into mature dermal macrophages.
View Article and Find Full Text PDFMast cell activation induced by tamoxifen citrate via MRGPRX2 plays a potential adverse role in breast cancer treatment.
Biochem Pharmacol
January 2025
School of Pharmacy, Xi'an Jiaotong University, Xi'an 710061, PR China; State Key Laboratory of Shaanxi for Natural Medicines Research and Engineering, Xi'an 710061, PR China. Electronic address:
Breast cancer is the most common malignant tumor endangering women's life and health. Tamoxifen citrate (TAM) is the first-line drug of adjuvant endocrine therapy for estrogen receptor-positive (ER) breast cancer patients. Some sporadic cases have described rare adverse reactions of TAM with potentially life-threatening dermatological manifestations, which were associated with skin allergy.
View Article and Find Full Text PDFComprehensive Breslow thickness (BT)-based analysis to identify biological mechanisms associated with melanoma pathogenesis.
Int Immunopharmacol
January 2025
Department of Dermatology, Affiliated Hospital of Nanjing University of Chinese Medicine, Jiangsu Province Hospital of Chinese Medicine, Nanjing, Jiangsu 210029, China. Electronic address:
Breslow thickness (BT), a parameter measuring the depth of invasion of abnormally proliferating melanocytes, is a key indicator of melanoma severity and prognosis. However, the mechanisms underlying the increase in BT remain elusive. Utilizing data from The Cancer Genome Atlas (TCGA) human skin cutaneous melanoma (SKCM), we identified a set of BT-related molecules and analyzed their expression and genomic heterogeneity across pan-cancerous and normal tissues.
View Article and Find Full Text PDFHuman Hair Follicle Mesenchymal Stem Cell-Derived Exosomes Attenuate UVB-Induced Photoaging via the miR-125b-5p/TGF-β1/Smad Axis.
Biomater Res
January 2025
Center for Plastic & Reconstructive Surgery, Department of Dermatology, Zhejiang Provincial People's Hospital, Affiliated People's Hospital, Hangzhou Medical College, Hangzhou 310014, Zhejiang, China.
Cutaneous photoaging, induced by chronic exposure to ultraviolet (UV) radiation, typically manifests as alterations in both the physical appearance and functional properties of the skin and may predispose individuals to cancer development. Recent studies have demonstrated the reparative potential of exosomes derived from mesenchymal stem cells in addressing skin damage, while specific reports highlight their efficacy in ameliorating skin photoaging. However, the precise role of exosomes derived from human hair follicle mesenchymal stem cells (HFMSC-Exos) in the context of cutaneous photoaging remains largely unexplored.
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