Preferred Label : Complement and Coagulation Cascade;
NCIt related terms : Complement and coagulation cascades;
Alternative definition : KEGG: The complement system is a proteolytic cascade in blood plasma and a mediator
of innate immunity, a nonspecific defense mechanism against pathogens. There are three
pathways of complement activation: the classical pathway, the lectin pathway, and
the alternative pathway. All of these pathways generate a crucial enzymatic activity
that, in turn, generates the effector molecules of complement. The main consequences
of complement activation are the opsinization of pathogens, the recruitment of inflammatory
and immunocompetent cells, and the direct killing of pathogens. Blood coagulation
is another series of proenzyme-to-serine protease conversions, culminating the formation
of thrombin, the enzyme responsible for the conversion of soluble fibrinogen to the
insoluble fibrin clot. Protease-activated receptors, such as those activated by thrombin,
are members of G protein-coupled receptors and function as a mediator of innate immunity.
The kallikrein-kinin system is an endogenous metabolic cascade, triggering of which
results in the release of vasoactive kinins (bradykinin-related peptides). Kinin peptides
are implicated in many physiological and pathological processes including the regulation
of blood pressure and sodium homeostasis, inflammatory processes, and the cardioprotective
effects of preconditioning.;
KEGG ID : hsa04610;
Origin ID : C91511;
UMLS CUI : C2984320;
Semantic type(s)
has_gene_product_element
pathway_has_gene_element