Phidianidines A and B are novel marine indole alkaloids with various biological activities. Based on their potential anti-inflammatory properties, a series of phidianidine derivatives were designed, synthesized, and tested for their effects on IL-17A production in PMA/ionomycin-stimulated T-cell-lymphoma EL-4 cells. Compounds 9a and 22c exhibited excellent anti-inflammatory activity and low toxicity, with IC values of 7.7 μM and 5.3 μM for IL-17A production in PMA/ionomycin-stimulated EL-4 cells, respectively. Further mechanistic study showed that 9a could decrease the STAT3 phosphorylation at Y705 to inhibit IL-17A production in EL-4 cells, indicating its ability of preventing the differentiation of Th17 cells and their possible function. This research may give an insight for the discovery of marine indole alkaloid derived anti-inflammatory drug leads for the treatment of T cell-mediated diseases.
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http://dx.doi.org/10.1016/j.bmc.2022.116936 | DOI Listing |
Phytomedicine
January 2025
Beijing Hospital of Traditional Chinese Medicine, Capital Medical University, Beijing, China; Beijing Institute of Traditional Chinese Medicine, Beijing, China. Electronic address:
Background: Psoriasis is a prevalent chronic inflammatory skin condition for which existing treatments often fall short of fully addressing patient needs. Abelmoschi Corolla (AC), a traditional Chinese medicine, and its ethanol extract, huangkui capsule, are well established for the treatment of chronic kidney diseases. The therapeutic mechanisms of AC include anti-inflammatory effects and immune modulation, which align with psoriasis treatment strategies.
View Article and Find Full Text PDFBiomed Pharmacother
January 2025
Laboratory of Medical Mycology & Department of Dermatology, Jining No.1 People's Hospital affiliated to Shandong First Medical University, Jining, Shandong, China. Electronic address:
Immunoglobulin (Ig) E is a key mediator in the induction and maintenance of allergic inflammation, characterized by a Th2-dominated immune response. Recently epidemiological studies have showed that elevated serum total IgE levels or an increased abundance of mast cells (MCs) at the lesion site are observed in psoriatic patients with cardiovascular diseases (CVD), such as atherosclerosis. Although the underlying mechanisms by which IgE synergizing with MCs in promoting these chronic immune-inflammatory diseases remain unclear, the interleukin (IL)-23/IL-17 axis appears to play a crucial role in comorbidity of psoriasis and atherosclerosis.
View Article and Find Full Text PDFImmunology
January 2025
Department of Dermatology, Weill Cornell Medicine, New York, New York, USA.
Calcitonin gene-related peptide (CGRP) biases Langerhans cell (LC) Ag presentation to CD4 T cells towards Th17-type immunity through actions on endothelial cells (ECs). We now report further evidence that IL-6 signalling at responding T cells mediates this effect. This CGRP effect was absent with ECs from IL-6 KO mice.
View Article and Find Full Text PDFCommun Biol
January 2025
Department of Obstetrics and Gynecology, Nagoya University Graduate School of Medicine, Nagoya, Japan.
Histological chorioamnionitis (HCA) is a form of maternal immune activation (MIA) linked to an increased risk of neurodevelopmental disorders in offspring. Our previous study identified neurodevelopmental impairments in an MIA mouse model mimicking HCA. Thus, this study investigated the role of CD11c microglia, key contributors to myelination through IGF-1 production, in this pathology.
View Article and Find Full Text PDFNan Fang Yi Ke Da Xue Xue Bao
January 2025
College of Basic Medical Sciences, Xiangnan University, Chenzhou 423000, China.
Objectives: To explore the active components that mediate the therapeutic effect of on psoriasis and their therapeutic mechanisms.
Methods: TCMSP, TCMIP, PharmMapper, Swiss Target Prediction, GeneCards, OMIM and TTD databases were searched for the compounds in and their targets and the disease targets of psoriasis. A drug-active component-target network and the protein-protein interaction network were constructed, and DAVID database was used for pathway enrichment analysis.
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