Method of inhibition of complement mediated inflammatory respons

Details Method of inhibition of complement mediated inflammatory respons Method of inhibition of complement mediated inflammatory respons

1995-06-05

1997-08-26

Scheiner, Toni R.

Drug, bio-affecting and body treating compositions

Immunoglobulin, antiserum, antibody, or antibody fragment,...

4241311, 4241411, 4241581, 424810, 514 2, 514 12, 5303872, 53038825, A61K 39395, A61K 3800, C07K 1600

Patent

active

056608250

ABSTRACT:
A composition and methods for use thereof relating to polypeptides having the ability to act as an inhibitor of complement C5b-9 complex activity. The compositions contain an 18 kDa protein found on the surface of human erythrocytes, a 37 kDa protein found on the surface of human platelets, a 37 kDa protein found on the surface of human endothelial cells, active derivatives or fragments thereof which act to inhibit the activity of C5b-9, anti-idiotypic antibodies mimicking the action of the inhibitor proteins or antibodies against C7 or C9 which block the formation of the C5b-9 complex. The compositions can be used in vitro to inhibit C5b-9 related stimulatory responses of platelets and vascular endothelium of perfused organs and tissues, thereby preventing the C5b-9 initiated cell necrosis or stimulated secretion of proteolytic enzymes and the exposure of the procoagulant membrane receptors during collection and in vitro storage. Further, immune disease states can be treated by administering an effective amount of a C5b-9 inhibitor to suppress C5b-9 mediated platelet activation in vivo.

REFERENCES:
Yamashina et al New England Journal of Medicine vol. 323 p. 1184 Oct. 1990.
Rother et al Blood vol. 84 p. 2604--abstract only 1994.

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