SARS-CoV-2 Exacerbates COVID-19 Pathology Through Activation of the Complement and Kinin Systems
Infection with SARS-CoV-2 triggers the simultaneous activation of innate inflammatory pathways including the complement system and the kallikrein-kinin system (KKS) generating in the process potent vasoactive peptides that contribute to severe acute ...
Anne G. Savitt +13 more
doaj +1 more source
Electrostatic Steering Accelerates C3d:CR2 Association. [PDF]
Electrostatic effects are ubiquitous in protein interactions and are found to be pervasive in the complement system as well. The interaction between complement fragment C3d and complement receptor 2 (CR2) has evolved to become a link between innate and ...
Dimitrios Morikis +4 more
core +2 more sources
Infections with extracellular trypanosomes require control by efficient innate immune mechanisms and can result in the destruction of the mammalian humoral immune system [PDF]
Salivarian trypanosomes are extracellular parasites that affect humans, livestock, and game animals around the world. Through co-evolution with the mammalian immune system, trypanosomes have developed defense mechanisms that allow them to thrive in blood,
Magez, Stefan +3 more
core +1 more source
Lectin pathway proteins of the complement system in normotensive pregnancy and pre‐eclampsia [PDF]
ProblemThe lectin pathway of the complement system may be involved in the pathogenesis of pre‐eclampsia. We aimed to investigate changes in serum concentrations of a broad range of lectin pathway proteins during normal pregnancy and their association with pre‐eclampsia, placental infarctions and intrauterine growth restriction (IUGR).Method of studyWe ...
Julie Brogaard Larsen +6 more
openaire +3 more sources
Evasion Mechanisms Used by Pathogens to Escape the Lectin Complement Pathway
The complement system is a crucial defensive network that protects the host against invading pathogens. It is part of the innate immune system and can be initiated via three pathways: the lectin, classical and alternative activation pathway.
Anne Rosbjerg +3 more
doaj +1 more source
The complement system is the most ancient components in the innate immunity, mainly functioning to primarily eliminate bacterial agents intravascularly.
Marina V. Smolnikova +1 more
doaj +1 more source
Complement System and C4d expression in cases of Membranous nephropathy
Introduction: Membranous nephropathy (MN) is one of the major causes of nephrotic syndrome. The complement system plays a key role in the pathophysiology of MN.
Fabiano Bichuette Custódio +4 more
doaj +1 more source
Structural basis of complement membrane attack complex formation [PDF]
In response to complement activation, the membrane attack complex (MAC) assembles from fluid-phase proteins to form pores in lipid bilayers. MAC directly lyses pathogens by a ‘multi-hit’ mechanism; however, sublytic MAC pores on host cells activate ...
Bubeck, D +3 more
core +1 more source
The complement system is a tightly regulated network of proteins involved in defense against pathogens, inflammatory processes, and coordination of the innate and adaptive immune responses.
Cecilie E. Hertz +6 more
doaj +1 more source
CLONING OF THE 1.4-kb mRNA SPECIES OF HUMAN COMPLEMENT FACTOR H REVEALS A NOVEL MEMBER OF THE SHORT CONSENSUS REPEAT FAMILY RELATED TO THE CARBOXY TERMINAL OF THE CLASSICAL 150-kDa MOLECULE [PDF]
Three factor H mRNA species of 4.3 kb, 1.8 kb, and 1.4 kb are constitutively expressed in human liver. Having previously characterized full-length cDNA clones derived from the 4.3-kb and 1.8-kb factor mRNA, we report here the isolation and eucaryotic ...
Dierich, Manfred P. +4 more
core +2 more sources

