Published in:
Open Access
01-12-2013 | Research article
Serum HMGB1 as a prognostic marker for malignant pleural mesothelioma
Authors:
Chiharu Tabata, Eisuke Shibata, Rie Tabata, Shingo Kanemura, Koji Mikami, Yoshitaka Nogi, Eriko Masachika, Tomoyuki Nishizaki, Takashi Nakano
Published in:
BMC Cancer
|
Issue 1/2013
Login to get access
Abstract
Background
Malignant pleural mesothelioma (MPM) is an aggressive malignant tumor of mesothelial origin that shows a limited response to conventional chemotherapy and radiotherapy. Therefore, diagnosing MPM early is very important. Some researchers have previously reported that high-mobility group box 1 (HMGB1) was correlated with pulmonary fibrosis. MPM involves the malignant transformation of mesothelial cells, which originate from mesenchymal cells similar to lung fibroblasts. Here, we investigated serum levels of HMGB1 in patients with MPM and compared them with those of a population that had been exposed to asbestos without developing MPM.
Methods
HMGB1 production from MPM cell lines was measured using ELISA. Serum HMGB1 levels were also examined in 61 MPM patients and 45 individuals with benign asbestos-related diseases.
Results
HMGB1 concentrations of 2 out of 4 MPM cell lines were higher than that of normal mesothelial cell line, Met-5A. We demonstrated that patients with MPM had significantly higher serum levels of HMGB1 than the population who had been exposed to asbestos but had not developed MPM. The difference in overall survival between groups with serum HMGB1 levels that were lower and higher than assumed cut-off values was significant.
Conclusions
Our data suggest that serum HMGB1 concentration is a useful prognostic factor for MPM.