This Article Full Text Full Text (PDF) Alert me when this article is cited Alert me if a correction is posted Services Email this article to a colleague Similar articles in this journal Similar articles in Web of Science Similar articles in PubMed Alert me to new issues of the journal Download to citation manager Request Permissions Citing Articles Citing Articles via HighWire Citing Articles via Web of Science (7) Citing Articles via Google Scholar Google Scholar Articles by Nohé, B. Articles by Dieterich, H.-J. Search for Related Content PubMed PubMed Citation Articles by Nohé, B. Articles by Dieterich, H.-J. Related Collections Critical Care Blood

---

CRITICAL CARE AND TRAUMA

The Effects of Fresh Frozen Plasma on Neutrophil-Endothelial Interactions

Department of Anaesthesiology and Critical Care, University Hospital Tuebingen, Tuebingen, Germany

Address correspondence and reprint requests to B. Nohé, MD, Department of Anaesthesiology and Critical Care, University of Tuebingen, Hoppe-Seyler Str. 3, 72076 Tuebingen, Germany. Address e-mail to boris.nohe{at}uni-tuebingen.de

Leukocyte adhesion to endothelial cells contributes to microcirculatory disturbances during severe shock syndromes. Whereas certain plasma expanders inhibit leukocyte adhesion, contaminants of plasma protein solutions upregulate endothelial cell adhesion molecules in certain cases. We performed this study to determine whether fresh frozen plasma (FFP) affects neutrophil-endothelial interactions in cocultures of neutrophils and human umbilical vein endothelial cells (HUVEC) in vitro. HUVEC (n = 9) were incubated with either 20% FFP or 20% serum in medium for 6 h. Expression of E-selectin, intercellular adhesion molecule 1, and vascular cell adhesion molecule-1 was induced by tumor necrosis factor (0.5 ng/mL for 4 h) and measured by flow cytometry. Neutrophil adhesion was examined in a parallel plate flow chamber in which isolated neutrophils were perfused over pretreated HUVEC under postcapillary flow conditions. Incubation with FFP decreased E-selectin and intercellular adhesion molecule 1 on activated HUVEC by 28% and 22%, respectively (P ≤ 0.01; analysis of covariance). Consequently, neutrophil adhesion decreased by 20%–41% in FFP-treated cocultures (n = 4; P ≤ 0.01; paired Student’s t-test). We conclude that FFP attenuates the inflammatory response of endothelial cells with regard to neutrophil-endothelial interactions. Because the composition of patients’ plasma is affected not only by transfusion, but more frequently by shock treatment with IV fluids, plasma dilution in critically ill patients could be important.

IMPLICATIONS: During shock, fluid administration leads to a massive dilution of plasma. Apart from maintaining hemodynamics, this might affect tissue damage by influencing leukocyte accumulation in the microvasculature. Using endothelial cells, isolated neutrophils, and a parallel plate flow chamber, we studied the effects of fresh frozen plasma on neutrophil-endothelial interactions.

This article has been cited by other articles:

				S. Gunaydin, K. Ayrancioglu, E. Dikmen, K. Mccusker, V. Vijay, T. Sari, T. Tezcaner, and Y. Zorlutuna Clinical effects of leukofiltration and surface modification on post-cardiopulmonary bypass atrial fibrillation in different risk cohorts Perfusion, July 1, 2007; 22(4): 279 - 288. [Abstract] [PDF]