A proteomic approach identifies early pregnancy biomarkers for preeclampsia: Novel linkages between a predisposition to preeclampsia and cardiovascular disease

Marion Blumenstein, Michael T. McMaster, Michael A. Black, Steven Wu, Roneel Prakash, Janine Cooney, Lesley M E McCowan, Garth J.S. Cooper, Robyn A. North

Research output: Contribution to journalArticlepeer-review

Abstract

Preeclampsia (PE) is a common, potentially life-threatening pregnancy syndrome triggered by placental factors released into the maternal circulation, resulting in maternal vascular dysfunction along with activated inflammation and coagulation. Currently there is no screening test for PE. We sought to identify differentially expressed plasma proteins in women who subsequently develop PE that may perform as predictive biomarkers. In seven DIGE experiments, we compared the plasma proteome at 20wk gestation in women who later developed PE with an appropriate birth weight for gestational age baby (n=27) or a small for gestational age baby (n=12) to healthy controls with uncomplicated pregnancies (n=57). Of the 49 differentially expressed spots associated with PE-appropriate for gestational age, PE-small for gestational age or both (p90%) classified women at risk of developing PE were identified. Immunoblots confirmed the overexpression of fibrinogen γ chain and α-1-antichymotrypsin in plasma prior to PE. The proteins identified are involved in lipid metabolism, coagulation, complement regulation, extracellular matrix remodeling, protease inhibitor activity and acute-phase responses, indicating novel synergism between pathways involved in the pathogenesis of PE. Our findings are remarkably similar to recently identified proteins complexed to high-density lipoprotein and linked to cardiovascular disease. © 2009 Wiley-VCH Verlag GmbH & Co. KGaA.
Original languageEnglish
Pages (from-to)2929-2945
Number of pages16
JournalProteomics
Volume9
Issue number11
DOIs
Publication statusPublished - Jun 2009

Keywords

  • DIGE
  • Plasma biomarkers
  • Preeclampsia
  • Pregnancy
  • Small for gestational age

Fingerprint

Dive into the research topics of 'A proteomic approach identifies early pregnancy biomarkers for preeclampsia: Novel linkages between a predisposition to preeclampsia and cardiovascular disease'. Together they form a unique fingerprint.

Cite this