Format

Send to:

Choose Destination
See comment in PubMed Commons below
J Proteomics. 2013 Jan 14;78:172-87. doi: 10.1016/j.jprot.2012.11.013. Epub 2012 Nov 30.

Protein expression profiles of human lymph and plasma mapped by 2D-DIGE and 1D SDS-PAGE coupled with nanoLC-ESI-MS/MS bottom-up proteomics.

Author information

  • 1Department of Pathology, Albert Einstein College of Medicine, Bronx, NY 10461, USA.

Abstract

In this study a proteomic approach was used to define the protein content of matched samples of afferent prenodal lymph and plasma derived from healthy volunteers. The analysis was performed using two analytical methodologies coupled with nanoliquid chromatography-tandem mass spectrometry: one-dimensional gel electrophoresis (1DEF nanoLC Orbitrap-ESI-MS/MS), and two-dimensional fluorescence difference-in-gel electrophoresis (2D-DIGE nanoLC-ESI-MS/MS). The 253 significantly identified proteins (p<0.05), obtained from the tandem mass spectrometry data, were further analyzed with pathway analysis (IPA) to define the functional signature of prenodal lymph and matched plasma. The 1DEF coupled with nanoLC-MS-MS revealed that the common proteome between the two biological fluids (144 out of 253 proteins) was dominated by complement activation and blood coagulation components, transporters and protease inhibitors. The enriched proteome of human lymph (72 proteins) consisted of products derived from the extracellular matrix, apoptosis and cellular catabolism. In contrast, the enriched proteome of human plasma (37 proteins) consisted of soluble molecules of the coagulation system and cell-cell signaling factors. The functional networks associated with both common and source-distinctive proteomes highlight the principal biological activity of these immunologically relevant body fluids.

Copyright © 2012 Elsevier B.V. All rights reserved.

PMID:
23202415
[PubMed - indexed for MEDLINE]
PMCID:
PMC3631612
Free PMC Article
PubMed Commons home

PubMed Commons

0 comments
How to join PubMed Commons

    Supplemental Content

    Full text links

    Icon for Elsevier Science Icon for PubMed Central
    Loading ...
    Write to the Help Desk