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Research Article Free access | 10.1172/JCI109269

C5 chemotactic fragment induces leukocyte production of tissue factor activity: a link between complement and coagulation.

T W Muhlfelder, J Niemetz, D Kreutzer, D Beebe, P A Ward, and S I Rosenfeld

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Published January 1, 1979 - More info

Published in Volume 63, Issue 1 on January 1, 1979
J Clin Invest. 1979;63(1):147–150. https://doi.org/10.1172/JCI109269.
© 1979 The American Society for Clinical Investigation
Published January 1, 1979 - Version history
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Abstract

Complement-activated human plasma causes generation of tissue factor in human leukocytes. This phenomenon appears to be related to the fifth component of complement (C5) as demonstrated by the use of C5 deficient-plasma and suppression of activity with antibody to C5. Isolation of the chemotactic factor from activated serum or trypsinization of purified C5 reproduces the phenomenon. These data provide evidence for a direct link between complement products and activation of the coagulation system. Because chemotactic peptides from C5 can be generated by a variety of enzymes, our findings suggest a relationship between complement, coagulation, and inflammation.

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