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Scavenger receptors clear the air
Edward M. Postlethwait
Edward M. Postlethwait
Published March 1, 2007
Citation Information: J Clin Invest. 2007;117(3):601-604. https://doi.org/10.1172/JCI31549.
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Commentary

Scavenger receptors clear the air

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Abstract

Inhaled environmental oxidants, such as ozone and particulates, have been variably linked to epithelial injury, inflammation, and perturbations in lung development, growth, and function. Reactions between ozone and lung surface lipids likely account for exposure-related pathophysiologic sequelae. In this issue of the JCI, Dahl et al. document a previously unrecognized pulmonary defense against inhaled oxidants in mice: macrophage scavenger receptors (SRs) bind proinflammatory oxidized lipids, thereby decreasing pulmonary inflammation (see the related article beginning on page 757). The study adds to our knowledge of diverse lung oxidative processes and identifies a potential regulatory mechanism governing pulmonary inflammation. Further investigations to elucidate more precise mechanisms and to determine the influence of SRs on airway epithelial injury, repair, and remodeling are warranted.

Authors

Edward M. Postlethwait

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