• Clin. Immunol. · Jun 2020

    Vitamin D suppress the production of vascular endothelial growth factor in mast cell by inhibiting PI3K/Akt/p38 MAPK/HIF-1α pathway in chronic spontaneous urticaria.

    • Jun-Wei Zhao, Jie-Dan Ping, Yong-Feng Wang, Xia-Nan Liu, Nan Li, Zhong-Lan Hu, and Liang Ming.
    • Clinical Laboratory, The First Affiliated Hospital of Zhengzhou University, Key Clinical Laboratory of Henan Province, Zhengzhou, China; Department of laboratory medicine, Zhengzhou University. Zhengzhou, China.
    • Clin. Immunol. 2020 Jun 1; 215: 108444.

    AbstractMast cells play a significant role in urticaria pathogenesis. It's evidenced that vitamin D has positive impact in chronic spontaneous urticaria (CSU) recently, but underlying mechanisms remain unclear. In this study, isobaric tag for relative and absolute quantification-liquid chromatography-mass spectrometer/mass spectrometer was used to detect the expression of proteins in sera of CSU patients and healthy subjects. Thirty-one differentially expressed proteins were identified, in which vitamin D binding protein (VDBP) was higher in CSU patients than that in healthy subjects after verification. Our results indicated that sera of CSU patients induced the production of vascular endothelial growth factor (VEGF) in mast cells through PI3K/Akt/p38 MAPK/HIF-1α axis in an IgE-depended way, and 25(OH)D3 suppressed the expression of VEGF by inhibiting this signaling pathway axis in this process. Collectively, these results suggest VDBP to be a potential biomarker and propose a potential mechanism of benefit for vitamin D therapy in CSU.Copyright © 2020 The Authors. Published by Elsevier Inc. All rights reserved.

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