Low molecular weight polysialic acid binds to properdin and reduces the activity of the alternative complement pathway [PDF]
Scientific Reports, 2022 Sialic acids as the terminal caps of the cellular glycocalyx play an essential role in self-recognition and were shown to modulate complement processes via interaction between α2,3-linked sialic acids and complement factor H. Previously, it was suggested
Anahita Shahraz +9 more
doaj +2 more sources
The lectin pathway of complement activation is a critical component of the innate immune response to pneumococcal infection. [PDF]
PLoS Pathogens, 2012 The complement system plays a key role in host defense against pneumococcal infection. Three different pathways, the classical, alternative and lectin pathways, mediate complement activation.
Youssif M Ali +15 more
doaj +12 more sources
Ecotin, a microbial inhibitor of serine proteases, blocks multiple complement dependent and independent microbicidal activities of human serum. [PDF]
PLoS Pathogens, 2019 Ecotin is a serine protease inhibitor produced by hundreds of microbial species, including pathogens. Here we show, that ecotin orthologs from Escherichia coli, Yersinia pestis, Pseudomonas aeruginosa and Leishmania major are potent inhibitors of MASP-1 ...
Zoltán Attila Nagy +10 more
doaj +3 more sources
Alternative Complement Pathway Inhibition by Lampalizumab
Ophthalmology Science, 2023 Purpose: Lampalizumab, an antigen-binding fragment of a humanized monoclonal antibody directed against complement factor D (CFD), is designed to treat geographic atrophy (GA) secondary to age-related macular degeneration.
Rose Edmonds, MS +3 more
doaj +2 more sources
Quantitative Modeling of the Alternative Pathway of the Complement System. [PDF]
PLoS ONE, 2016 The complement system is an integral part of innate immunity that detects and eliminates invading pathogens through a cascade of reactions. The destructive effects of the complement activation on host cells are inhibited through versatile regulators that
Nehemiah Zewde +3 more
doaj +7 more sources
Kidney Diseases Caused by Complement Dysregulation: Acquired, Inherited, and Still More to Come [PDF]
Clinical and Developmental Immunology, 2012 Inherited and acquired dysregulation of the complement alternative pathway plays an important role in multiple renal diseases. In recent years, the identification of disease-causing mutations and genetic variants in complement regulatory proteins has ...
Saskia F. Heeringa, Clemens D. Cohen
doaj +3 more sources
In vaccinated individuals serum bactericidal activity against B meningococci is abrogated by C5 inhibition but not by inhibition of the alternative complement pathway [PDF]
Frontiers in Immunology, 2023 IntroductionSeveral diseases caused by the dysregulation of complement activation can be treated with inhibitors of the complement components C5 and/or C3.
Emma Ispasanie +12 more
doaj +3 more sources
Alternative complement pathway deregulation is correlated with dengue severity. [PDF]
PLoS ONE, 2009 BACKGROUND:The complement system, a key component that links the innate and adaptive immune responses, has three pathways: the classical, lectin, and alternative pathways. In the present study, we have analyzed the levels of various complement components
Eduardo J M Nascimento +6 more
doaj +5 more sources
Blockade of Alternative Complement Pathway in Dense Deposit Disease [PDF]
Case Reports in Nephrology, 2014 A patient aged 17 with dense deposit disease associated with complement activation, circulating C3 Nef, and Factor H mutation presented with nephrotic syndrome and hypertension.
Aurore Berthe-Aucejo +6 more
doaj +2 more sources
Complement alternative pathway activation in human nonalcoholic steatohepatitis. [PDF]
PLoS ONE, 2014 The innate immune system plays a major role in the pathogenesis of nonalcoholic steatohepatitis (NASH). Recently we reported complement activation in human NASH.
Filip M Segers +9 more
doaj +6 more sources