Comparative proteome analyses of human plasma following in vivo lipopolysaccharide administration using multidimensional separations coupled with tandem mass spectrometry

There is significant interest in characterization of the human plasma proteome due to its potential for providing biomarkers applicable to clinical diagnosis and treatment and for gaining a better understanding of human diseases. We describe here a strategy for comparative proteome analyses of human...

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Bibliographic Details
Published in:Proteomics (Weinheim) 2005-02, Vol.5 (2), p.572-584
Main Authors: Qian, Wei-Jun, Jacobs, Jon M., Camp II, David G., Monroe, Matthew E., Moore, Ronald J., Gritsenko, Marina A., Calvano, Steve E., Lowry, Stephen F., Xiao, Wenzhong, Moldawer, Lyle L., Davis, Ronald W., Tompkins, Ronald G., Smith, Richard D.
Format: Article
Language:English
Subjects:
Analytical, structural and metabolic biochemistry
Biological and medical sciences
Blood Proteins - analysis
Chromatography, Ion Exchange
Chromatography, Liquid
Comparative analysis
Electrophoresis, Capillary
Fundamental and applied biological sciences. Psychology
Human plasma
Humans
Lipopolysaccharide
Lipopolysaccharides - administration & dosage
Liquid chromatography-tandem mass spectrometry
Mass Spectrometry
Miscellaneous
Proteins
Proteome - analysis
Reproducibility of Results
Time Factors
Up-Regulation - drug effects
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Summary:There is significant interest in characterization of the human plasma proteome due to its potential for providing biomarkers applicable to clinical diagnosis and treatment and for gaining a better understanding of human diseases. We describe here a strategy for comparative proteome analyses of human plasma, which is applicable to biomarker identifications for various disease states. Multidimensional liquid chromatography‐mass spectrometry (LC‐MS/MS) has been applied to make comparative proteome analyses of plasma samples from an individual prior to and 9 h after lipopolysaccharide (LPS) administration. Peptide peak areas and the number of peptide identifications for each protein were used to evaluate the reproducibility of LC‐MS/MS and to compare relative changes in protein concentration between the samples following LPS treatment. A total of 804 distinct plasma proteins (not including immunoglobulins) were confidently identified with 32 proteins observed to be significantly increased in concentration following LPS administration, including several known inflammatory response or acute‐phase mediators such as C‐reactive protein, serum amyloid A and A2, LPS‐binding protein, LPS‐responsive and beige‐like anchor protein, hepatocyte growth factor activator, and von Willebrand factor, and thus, constituting potential biomarkers for inflammatory response.
ISSN:1615-9853
1615-9861
DOI:10.1002/pmic.200400942