Proteomic analysis of proteins from bronchoalveolar lavage fluid reveals the action mechanism of ultrafine carbon black-induced lung injury in mice

Chih Ching Chang, Shu Hui Chen, Shih Hsin Ho, Chun Yuh Yang, Hong Da Wang, Mei Ling Tsai

研究成果: Article

23 引文 斯高帕斯(Scopus)


Previous studies have shown that ultrafine carbon black (ufCB) could cause oxidative stress and lung injury, but the mechanisms have not been clearly demonstrated. In this study, 1-D gel electrophoresis coupled with LC/MS/MS (1-D geLC/MS/MS) was carried out with bronchoalveolar lavage fluid (BALF) to identify proteins associated with ufCB-induced lung injury. If required, Western blot was conducted additionally to validate proteins. Thirty-three proteins were identified, including leukemia inhibitory factor receptor (LIFR) and epidermal growth factor receptor (EGFR). Western blot analysis showed that ufCB exposure caused the increases of LIFR and EGFR in BALF and decreases of both receptors in lung tissues, suggesting the acceleration of epithelial shedding from the lung and increase of cell debris with membrane proteins EGFR and LIFR in BALF. There were strong correlations between vascular endothelial growth factor (VEGF) and albumin (p<0.01) or α2-macroglobulin (α2M) in BALF (p<0.05). Importantly, antioxidant ceruloplasmin (Cp) was shown to be produced from lung epithelial cells in response to ufCB exposure. This is the first study to apply 1-D ge LC/MS/MS and experimental studies to reveal the mechanisms involved in the pathogenesis of ufCB-induced lung injury.

頁(從 - 到)4388-4397
出版狀態Published - 2007 十二月 1


All Science Journal Classification (ASJC) codes

  • Biochemistry
  • Molecular Biology