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Receptor for advanced glycation end-products is a marker of type I cell injury in acute lung injury.

Authors: Uchida, T  Shirasawa, M  Ware, LB  Kojima, K  Hata, Y  Makita, K  Mednick, G  Matthay, ZA  Matthay, MA 
Citation: Uchida T, etal., Am J Respir Crit Care Med. 2006 May 1;173(9):1008-15. Epub 2006 Feb 2.
Pubmed: (View Article at PubMed) PMID:16456142
DOI: Full-text: DOI:10.1164/rccm.200509-1477OC

RATIONALE: Receptor for advanced glycation end-products (RAGE) is one of the alveolar type I cell-associated proteins in the lung. OBJECTIVES: To test the hypothesis that RAGE is a marker of alveolar epithelial type I cell injury. METHODS: Rats were instilled intratracheally with 10 mg/kg lipopolysaccharide or hydrochloric acid. RAGE levels were measured in the bronchoalveolar lavage (BAL) and serum in the rats and in the pulmonary edema fluid and plasma from patients with acute lung injury (ALI; n = 22) and hydrostatic pulmonary edema (n = 11). MAIN RESULTS: In the rat lung injury studies, RAGE was released into the BAL and serum as a single soluble isoform sized approximately 48 kD. The elevated levels of RAGE in the BAL correlated well with the severity of experimentally induced lung injury. In the human studies, the RAGE level in the pulmonary edema fluid was significantly higher than the plasma level (p < 0.0001). The median edema fluid/plasma ratio of RAGE levels was 105 (interquartile range, 55-243). The RAGE levels in the pulmonary edema fluid from patients with ALI were higher than the levels from patients with hydrostatic pulmonary edema (p < 0.05), and the plasma RAGE level in patients with ALI were significantly higher than the healthy volunteers (p < 0.001) or patients with hydrostatic pulmonary edema (p < 0.05). CONCLUSION: RAGE is a marker of type I alveolar epithelial cell injury based on experimental studies in rats and in patients with ALI.

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RGD Object Information
RGD ID: 1625343
Created: 2007-06-04
Species: All species
Last Modified: 2007-06-04
Status: ACTIVE



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RGD is funded by grant HL64541 from the National Heart, Lung, and Blood Institute on behalf of the NIH.