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Role Of Inos In Septic Pulmonary Microvascular Endothelial Cell Activation, Zahra Asad
Role Of Inos In Septic Pulmonary Microvascular Endothelial Cell Activation, Zahra Asad
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Abstract
Background. Neutrophils and nitric oxide (NO) derived from inducible NO synthase (iNOS) contributes importantly to the pathophysiology of acute lung injury (ALI) and pulmonary microvascular endothelial cell (PMVEC) injury. However, the mechanism of neutrophil and neutrophil iNOS dependent PMVEC injury has not been addressed. In our studies, we assessed PMVEC activation under septic conditions, and defined the role of PMVEC vs. bone-marrow polymorphonuclear leukocytes (PMN) iNOS in this septic PMVEC activation.
Methods and Results. We isolated PMVEC from iNOS+/+ and iNOS-/- mice lungs magnetically by microbeads attached to anti-PECAM antibodies, sorted by flow cytometry (FACS) by DiI-acetylated low density …