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Acute effects of parainfluenza virus on epithelial electrolyte transport

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posted on 2023-05-20, 21:01 authored by Kunzelmann, K, Konig, J, Sun, J, Markovich, D, King, NJ, Gunasegaran KarupiahGunasegaran Karupiah, Young, JA, Cook, DI
Parainfluenza viruses are important causes of respiratory disease in both children and adults. In particular, they are the major cause of the serious childhood illness croup (laryngotracheobronchitis). The infections produced by parainfluenza viruses are associated with the accumulation of ions and fluid in the respiratory tract. It is not known, however, whether this accumulation is because of a direct effect of the viruses on ion and fluid transport by the respiratory epithelium. Here we show that a model parainfluenza virus (the Sendai virus), in concentrations observed during respiratory infections, activates Cl secretion and inhibits Na absorption across the tracheal epithelium. It does so by binding to a neuraminidase-insensitive glycolipid, possibly asialoGM1, triggering the release of ATP, which then acts in an autocrine fashion on apical P2Y receptors to produce the observed changes in ion transport. These findings indicate that fluid accumulation in the respiratory tract associated with parainfluenza virus infection is attributable, at least in part, to direct effects of the virus on ion transport by the respiratory epithelium.

History

Publication title

Journal of Biological Chemistry

Volume

279

Issue

47

Pagination

48760 -48766

ISSN

0021-9258

Department/School

Tasmanian School of Medicine

Publisher

Amer Soc Biochemistry Molecular Biology Inc

Place of publication

9650 Rockville Pike, Bethesda, USA, Md, 20814-3996

Rights statement

© 2004 by The American Society for Biochemistry and Molecular Biology, Inc. This is an Open Access article under the Creative Commons Attribution 4.0 International (CC BY 4.0) license. (https://creativecommons.org/licenses/by/4.0/)

Repository Status

  • Open

Socio-economic Objectives

Prevention of human diseases and conditions; Treatment of human diseases and conditions

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