Humoral and cellular activation in a simulated extracorporeal circuit.

Moat, N E; Rebuck, N; Shore, D F; Evans, T W; Finn, A H · Ann Thorac Surg · 1993

basic_science · Level V

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Abstract

Endothelial injury consequent upon widespread humoral and cellular activation is probably a major contributor to the phenomenon of cardiopulmonary bypass-induced organ dysfunction. This article reviews some of the mechanisms by which complement and neutrophil activation and interleukin-8 may be involved in this inflammatory response. In a model consisting of a simulated extracorporeal circulation we were able to demonstrate complement activation, profound and specific changes in neutrophil adhesion molecule expression, and interleukin-8 generation. The importance of these changes and their potential interactions are discussed.

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