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Disease Markers
Volume 2015, Article ID 382463, 9 pages
Review Article

Activated Complement Factors as Disease Markers for Sepsis

1Department of Anesthesiology, Yale University School of Medicine, New Haven, CT 06510, USA
2Department of Anesthesiology, College of Medicine, SUNY Downstate Medical Center, Brooklyn, NY 11203, USA
3Department of Cell Biology, College of Medicine, SUNY Downstate Medical Center, Brooklyn, NY 11203, USA

Received 8 April 2015; Accepted 16 August 2015

Academic Editor: Evangelos Giannitsis

Copyright © 2015 Jean Charchaflieh et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


Sepsis is a leading cause of death in the United States and worldwide. Early recognition and effective management are essential for improved outcome. However, early recognition is impeded by lack of clinically utilized biomarkers. Complement factors play important roles in the mechanisms leading to sepsis and can potentially serve as early markers of sepsis and of sepsis severity and outcome. This review provides a synopsis of recent animal and clinical studies of the role of complement factors in sepsis development, together with their potential as disease markers. In addition, new results from our laboratory are presented regarding the involvement of the complement factor, mannose-binding lectin, in septic shock patients. Future clinical studies are needed to obtain the complete profiles of complement factors/their activated products during the course of sepsis development. We anticipate that the results of these studies will lead to a multipanel set of sepsis biomarkers which, along with currently used laboratory tests, will facilitate earlier diagnosis, timely treatment, and improved outcome.