期刊
JOURNAL OF PROTEOME RESEARCH
卷 4, 期 4, 页码 1274-1286出版社
AMER CHEMICAL SOC
DOI: 10.1021/pr049746c
关键词
proteomics; two-dimensional nano-high performance liquid chromatography electrospray ionization; tandem mass spectrometry (2D nano-HPLC-ESI-MS/MS); pleural effusion; protein biomarker
Pleural effusion, an accumulation of pleural fluid, contains proteins originated from plasma filtrate and, especially when tissues are damaged, parenchyma interstitial spaces of lungs and/or other organs. This study details protein profiles in human pleural effusion from 43 lung adenocarcinoma patients by a two-dimensional nano-high performance liquid chromatography electrospray ionization tandem mass spectrometry (2D nano-HPLC-ESI-MVS/MVS) system. The experimental results revealed the identification of 1415 unique proteins from human pleural effusion. Among these 124 proteins identified with higher confidence levels, some proteins have not been reported in plasma and may represent proteins specifically present in pleural effusion. These proteins are valuable for mass identification of differentially expressed proteins involved in proteomics database and screening biomarker to further study in human lung adenocarcinoma. The significance of the use of proteomics analysis of human pleural fluid for the search of new lung cancer marker proteins, and for their simultaneous display and analysis in patients suffering from lung disorders has been examined.
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