نتایج جستجو برای: complement components

تعداد نتایج: 455167  

Journal: :The Biochemical journal 1978
J W Goers R R Porter

Radioimmune assays were developed to assay the binding of complement components C1q, C1s and C4 to antibody aggregates and to cell-bound antibody. The binding of the components was compared with the haemolytic activity and with the capacity to form the C3 convertase activity in the presence of excess C2. The destruction of whole complement and of C4 activity is similar per 1,000 molecules of an...

2014
Juan S Danobeitia Arjang Djamali Luis A Fernandez

The complement system is a major component of innate immunity and has been commonly identified as a central element in host defense, clearance of immune complexes, and tissue homeostasis. After ischemia-reperfusion injury (IRI), the complement system is activated by endogenous ligands that trigger proteolytic cleavage of complement components via the classical, lectin and/or alternative pathway...

Journal: :Journal of immunology 2013
Katerina Oikonomopoulou Robert A DeAngelis Hui Chen Eleftherios P Diamandis Morley D Hollenberg Daniel Ricklin John D Lambris

Activation of the complement system is primarily initiated by pathogen- and damage-associated molecular patterns on cellular surfaces. However, there is increasing evidence for direct activation of individual complement components by extrinsic proteinases as part of an intricate crosstalk between physiological effector systems. We hypothesized that kallikrein-related peptidases (KLKs), previous...

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