Title Human lung vascular endothelium may limit viral replication and recover in time upon the infection with rhinovirus HRV16.
Author Likonska, Aleksandra; Gawrysiak, Mateusz; Gajewski, Adrian; Klimczak, Kinga; Michlewska, Sylwia; Szewczyk, Robert; Gulbas, Izabela; Chalubinski, Maciej
Journal APMIS Publication Year/Month 2022-Nov
PMID 35959516 PMCID -N/A-
Affiliation + expend 1.Department of Immunology and Allergy, Chair of Pulmonology, Rheumatology and Clinical Immunology, Medical University of Lodz, Lodz, Poland.

Vascular endothelium is a semi-permeable barrier that regulates the flow of nutrients, ions, cytokines and immune cells between blood and tissues. Barrier properties of endothelium, its ability to regenerate and the potential for secretion of inflammatory mediators play a crucial role in maintaining local tissue homeostasis. The lung vascular endothelial cells were shown to be infected by human rhinovirus (HRV) and generate antiviral, inflammatory and cytopathic responses. The current study reveals that in the long-time manner, the lung vascular endothelium may efficiently limit the HRV replication via the IFN-dependent 2\'-5\'-oligoadenylate synthetase 1 activation. This leads to the restoration of integrity accompanied by the up-regulation of adherens and tight junctions, increase of metabolic activity and proliferation rate. Secondly, HRV16-infected cells show delayed and transient up-regulation of the expression of vascular endothelial growth factor (VEGF), fibroblast growth factor, angiopoietin 1 and 2, and neuropilin-1, as well as VEGF receptors. The lung vascular endothelium infected with HRV may limit the infection, recover in time, and regain barrier properties and metabolic functions, thus leading to the restoration of integrated barrier tissue.

  • Copyright © 2023
    National Institute of Pathogen Biology, CAMS & PUMC, Bejing, China
    All rights reserved.