C4d Deposits on the Surface of RBCs in Trauma Patients and Interferes With Their Function
Abstract
Complement system is activated in patients with trauma. Although complement activation is presumed to contribute to organ damage and constitutional symptoms, little is known about the involved mechanisms. Because complement components may deposit on RBCs, we asked whether complement deposits on the surface of RBC in trauma and whether such deposition alters RBC function. Our study found the presence of extensive complement activation in trauma patients and presents new evidence in support of the hypothesis that complement activation products deposit on the surface of RBC. Such deposition could limit RBC deformability and promote the production of nitric oxide. Our findings suggest that RBC in trauma patients malfunctions, which may explain organ damage and constitutional symptoms that is not accounted for otherwise by previously known pathophysiologic mechanisms.
Document Details
- Document Type
- Technical Report
- Publication Date
- May 01, 2014
- Accession Number
- ADA615212
Entities
People
- George C. Tsokos
- Ionita C. Ghiran
- Jurandir J. Dalle Lucca
- Lakshmi Kannan
- Maria Tsokos
- Nathan I. Shapiro
- Sergey S Shevkoplyas
- Takashi Muroya
- Ziv Paz
Organizations
- United States Army Institute of Surgical Research