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Serum heat shock protein 47 levels are elevated in acute interstitial pneumonia

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Title: Serum heat shock protein 47 levels are elevated in acute interstitial pneumonia
Authors: Kakugawa, Tomoyuki / Yokota, Shin-ichi / Ishimatsu, Yuji / Hayashi, Tomayoshi / Nakashima, Shota / Hara, Shintaro / Sakamoto, Noriho / Kubota, Hiroshi / Mine, Mariko / Matsuoka, Yasuhiro / Mukae, Hiroshi / Nagata, Kazuhiro / Kohno, Shigeru
Issue Date: 21-Mar-2014
Publisher: BioMed Central
Citation: BMC Pulmonary Medicine, 14(1), 48; 2014
Abstract: Background: Heat shock protein (HSP) 47, a collagen-specific molecular chaperone, is involved in the processing and/or secretion of procollagen. We hypothesized that HSP47 could be a useful marker for fibrotic lung disease. The aim of this study was to evaluate serum levels of HSP47 in patients with various idiopathic interstitial pneumonias (IIPs).Methods: Subjects comprised 9 patients with acute interstitial pneumonia (AIP), 12 with cryptogenic organizing pneumonia (COP), 16 with nonspecific interstitial pneumonia (NSIP), 19 with idiopathic pulmonary fibrosis (IPF), and 19 healthy adult volunteers.Results: Patients with AIP had serum HSP47 levels that were significantly higher than those of COP, NSIP or IPF patients and those of healthy volunteers. In contrast, serum levels of HSP47 among patients with COP, NSIP, IPF, and healthy volunteers did not differ significantly. Receiver operating characteristic curves revealed that the cut-off level for HSP47 that resulted in the highest diagnostic accuracy for discriminating between AIP and COP, NSIP, IPF, and healthy controls was 859.3 pg/mL. The sensitivity, specificity, and diagnostic accuracy were 100.0%, 98.5%, and 98.7%, respectively.Conclusion: The present results demonstrate that, among patients with various IIPs, serum levels of HSP47 were elevated specifically in patients with AIP.
Keywords: Acute interstitial pneumonia / Heat shock protein 47 / Idiopathic interstitial pneumonia
URI: http://hdl.handle.net/10069/34446
ISSN: 14712466
DOI: 10.1186/1471-2466-14-48
Rights: © 2014 Kakugawa et al.; licensee BioMed Central Ltd. / This is an Open Access article distributed under the terms of the Creative Commons Attribution License ( http://creativecommons.org/licenses/by/2.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly credited.
Type: Journal Article
Text Version: publisher
Appears in Collections:Articles in academic journal

Citable URI : http://hdl.handle.net/10069/34446

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