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C. C1 complex; C1-inhibitor; C3-convertase; C3a (complement) C3b; C4A; C5-convertase; C8 complex; Cell-bound complement activation products; Classical complement pathway
The complement system, also known as complement cascade, is a part of the humoral, innate immune system and enhances (complements) the ability of antibodies and phagocytic cells to clear microbes and damaged cells from an organism, promote inflammation, and attack the pathogen's cell membrane. [1]
C1-inhibitor plays the role of inactivating C1r and C1s to prevent further downstream classical complement activity. [13] [12] C1-inhibitor controls the processes involved in maintaining vascular permeability. As a result, C1-inhibitor levels of less than 50% of the standard lead to increased vascular permeability, characteristic of angioedema ...
C1-inhibitor (C1-inh, C1 esterase inhibitor) is a protease inhibitor belonging to the serpin superfamily. [5] Its main function is the inhibition of the complement system to prevent spontaneous activation but also as the major regulator of the contact system.
It is a humanized monoclonal antibody functioning as a terminal complement inhibitor. [13] It binds to the complement C5 protein and inhibits activation of the complement system, a part of the body's immune system. [16]
Pegcetacoplan acts as a complement inhibitor, specifically targeting complement protein C3, which plays a crucial role in the pathogenesis of paroxysmal nocturnal hemoglobinuria (PNH). In individuals with PNH, there is a heightened and uninhibited complement activity, which may lead to intravascular (inside blood vessels) or extravascular ...
CD46 complement regulatory protein also known as CD46 (cluster of differentiation 46) and Membrane Cofactor Protein is a protein which in humans is encoded by the CD46 gene. [5] CD46 is an inhibitory complement receptor .
Complement deficiency is an immunodeficiency of absent or suboptimal functioning of one of the complement system proteins. [4] Because of redundancies in the immune system, many complement disorders are never diagnosed. Some studies estimate that less than 10% are identified. [5]