complement system

(redirected from Complement proteins)

com·ple·ment sys·tem

a group of more than 20 serum proteins, some of which can be serially activated and participate in a cascade resulting in cell lysis; the complement system also functions in chemotaxis, opsonization, and phagocytosis.
Farlex Partner Medical Dictionary © Farlex 2012
References in periodicals archive ?
- The approved drugs in the hereditary angioedema space target complement proteins, androgen receptors, follicle-stimulating hormone, gonadotropin-releasing hormone, progesterone receptor, bradykinin B2 receptor, and the kinin-kallikrein system.
IBI302 is a novel recombinant fully human bi-specific fusion protein targeting both vascular endothelium growth factor (VEGF) and complement proteins. VEGF plays a fundamental role in choroidal neovascularization.
The Complement System is composed of 30 blood proteins that are numbered as complement proteins: C1 to C9 with some appended with additional letter designation, e.g.
C6 inhibition prevents the formation of the destructive membrane attack complex, a complex of terminal complement proteins that mediate cellular injury following complement activation, and has the potential to treat a variety of central nervous system disorders.
lanceolatus venom, purified human Complement proteins, C3, C4, C5, and C1-INH (2 fig from 0.2 mg/mL samples), were incubated with the same quantity of venom for 30min at 37[degrees]C.
The origin and contribution of complement proteins to synapse pruning in development and AD are not well understood and require further investigation.
Plasma levels of complement proteins from the alternative pathway in patients with age-related macular degeneration are independent of Complement Factor H Tyr402His polymorphism.
It's now clear that stimulate of complement via bacteria can happen via the classical or alternative pathway; the former usually requires for complement is stimulate confession of the membrane attack complex (MAC) which formation of terminal or late acting complement proteins (C5b-9) complexes [19].
In contrast, those same complement proteins were downregulated in female mice on day 2 and after ACV treatment compared to the ACV + IVIG treatment group.
According to research reported April 21, 2016 in the journal Cell, a genetic defect that becomes apparent with aging is thought to trigger an overabundance of "complement proteins" that mark unwanted connections for elimination, causing too many synapses to be destroyed by the microglia.
Complement proteins and microglia are known to be active in late-stage Alzheimer's, when the inflamed brain is packed with sticky gobs of A-beta.

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