期刊
PROTEOMICS CLINICAL APPLICATIONS
卷 12, 期 6, 页码 -出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/prca.201800008
关键词
biomarker; body fluids; proteome
资金
- National Basic Research Program of China [2013CB530805, 2014CBA02005]
- National Key Research and Development Program of China [2016 YFC 1306300]
- Key Basic Research Program of the Ministry of Science and Technology of China [2013FY114100]
- National Natural Science Foundation of China [30970650, 31200614, 31400669, 81371515, 81170665, 81560121]
- Beijing Natural Science Foundation [5132028, 7173264, 7172076]
- Science and Technology Yuanjiang Project of Xinjiang Uygur Autonomous Region [2013911114]
- CAMS Innovation Fund for Medical Sciences [2017-I2M-1-009]
- Fundamental Research Funds for the Central Universities [2015KJJCB21]
- Beijing Normal University [11100704]
- Biologic Medicine Information Center of China, National Scientific Data Sharing Platform for Population and Health
Purpose Experimental design Body fluid is considered a rich source of disease biomarkers. Proteins in many body fluids have potential clinical applications for disease diagnostic and prognostic predictions. To determine differences in the protein components and functional features of body fluids, a proteomic comparison of five body fluids (plasma, urine, cerebrospinal fluid, saliva, and amniotic fluid) was conducted by high-resolution mass spectrometry. Results Conclusions and clinical relevance A total of 4717 nonredundant proteins were identified, and the concentrations of 3433 proteins were estimated by an intensity-based algorithm quantitation method. Among them, 564 proteins were shared among the five body fluids, with common functions in the coagulation/prothrombin system and inflammatory response. A total of 36.7% of the proteins were detected in only one body fluid and were closely related to their adjacent tissues by function. The functional analysis of the remaining 2986 proteins showed that similar functions might be shared among different body fluids, which highlighted intimate connection in the body. The quantitative comparative functional analysis indicated that body fluids might reflect the diverse functions of the whole body rather than the characteristics of their adjacent tissues. The above data might indicate the potential application of body fluids for biomarker discovery.
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