The role of hyaluronan synthase 3 in ventilator-induced lung injury

Kuan Jen Bai, Andrew P. Spicer, Marcella M. Mascarenhas, Lunyin Yu, Cristhiaan D. Ochoa, Hari G. Garg, Deborah A. Quinn

Research output: Contribution to journalArticle

81 Citations (Scopus)

Abstract

We recently found that low-molecular-weight hyaluronan was induced by cyclic stretch in lung fibroblasts and accumulated in lungs from animals with ventilator-induced lung injury. The low-molecular-weight hyaluronan produced by stretch increased interleukin-8 production in epithelial cells, and was accompanied by an upregulation of hyaluronan synthase-3 mRNA. We hypothesized that low-molecular-weight hyaluronan induced by high VT was dependent on hyaluronan synthase 3, and was associated with ventilator-induced lung injury. Effects of high VT ventilation in C57BL/6 wild-type and hyaluronan synthase-3 knockout mice were compared. Significantly increased neutrophil infiltration, macrophage inflammatory protein-2 production, and lung microvascular leak were found in wild-type animals ventilated with high V T. These reactions were significantly reduced in hyaluronan synthase-3 knockout mice, except the capillary leak. Wild-type mice ventilated with high VT were found to have increased low-molecular-weight hyaluronan in lung tissues and concomitant increased expression of hyaluronan synthase-3 mRNA, neither of which was found in hyaluronan synthase-3 knockout mice. We conclude that high VT induced low-molecular-weight hyaluronan production is dependent on de novo synthesis through hyaluronan synthase 3, and plays a role in the inflammatory response of ventilator-induced lung injury.

Original languageEnglish
Pages (from-to)92-98
Number of pages7
JournalAmerican Journal of Respiratory and Critical Care Medicine
Volume172
Issue number1
DOIs
Publication statusPublished - Jul 1 2005
Externally publishedYes

Fingerprint

Ventilator-Induced Lung Injury
Hyaluronic Acid
Molecular Weight
Knockout Mice
Lung
Chemokine CXCL2
Messenger RNA
Wild Animals
Neutrophil Infiltration
hyaluronan synthase
Interleukin-8
Ventilation
Up-Regulation
Fibroblasts
Epithelial Cells

Keywords

  • Hyaluronic acid
  • Knockout mice
  • Mechanical ventilation
  • Tidal volume

ASJC Scopus subject areas

  • Pulmonary and Respiratory Medicine

Cite this

The role of hyaluronan synthase 3 in ventilator-induced lung injury. / Bai, Kuan Jen; Spicer, Andrew P.; Mascarenhas, Marcella M.; Yu, Lunyin; Ochoa, Cristhiaan D.; Garg, Hari G.; Quinn, Deborah A.

In: American Journal of Respiratory and Critical Care Medicine, Vol. 172, No. 1, 01.07.2005, p. 92-98.

Research output: Contribution to journalArticle

Bai, Kuan Jen ; Spicer, Andrew P. ; Mascarenhas, Marcella M. ; Yu, Lunyin ; Ochoa, Cristhiaan D. ; Garg, Hari G. ; Quinn, Deborah A. / The role of hyaluronan synthase 3 in ventilator-induced lung injury. In: American Journal of Respiratory and Critical Care Medicine. 2005 ; Vol. 172, No. 1. pp. 92-98.
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