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Pentraxins in Complement Activation and Regulation [PDF]

open access: yesFrontiers in Immunology, 2018
The complement is the first line of immune defense system involved in elimination of invading pathogens and dying host cells. Its activation is mainly triggered by immune complexes or pattern recognition molecules (PRMs) upon recognition against non-self
Ying Jie Ma, Peter Garred
doaj   +6 more sources

Regulation of the Complement System by Pentraxins [PDF]

open access: yesFrontiers in Immunology, 2019
The functions of pentraxins, like C-reactive protein (CRP), serum amyloid protein P (SAP) and pentraxin-3 (PTX3), are to coordinate spatially and temporally targeted clearance of injured tissue components, to protect against infections and to regulate ...
Karita Haapasalo   +3 more
doaj   +3 more sources

Complement activation and regulation in preeclamptic placenta [PDF]

open access: yesFrontiers in Immunology, 2014
Preeclampsia (PE) is a common disorder of pregnancy originating in the placenta. We examined whether excessive activation or poor regulation of the complement system at the maternal-fetal interface could contribute to the development of PE.
A. Inkeri eLokki   +14 more
doaj   +5 more sources

Complement as a regulator of adaptive immunity [PDF]

open access: yesSeminars in Immunopathology, 2017
The complement system is an ancient and evolutionarily conserved effector system comprising in mammals over 50 circulating and membrane bound proteins. Complement has long been described as belonging to the innate immune system; however, a number of recent studies have demonstrated its key role in the modulation of the adaptive immune response.
Killick, Justin   +3 more
openaire   +3 more sources

Regulation of Humoral Immunity by Complement [PDF]

open access: yesImmunity, 2012
The complement system of innate immunity is important in regulating humoral immunity largely through the complement receptor CR2, which forms a coreceptor on B cells during antigen-induced activation. However, CR2 also retains antigens on follicular dendritic cells (FDCs).
Carroll, Michael C., Isenman, David E.
openaire   +2 more sources

Function of complement regulatory proteins in immunity of reproduction: a review

open access: yesCzech Journal of Animal Science, 2005
Humoral immunity has an important role during the maturation and development of the functional properties of spermatozoa. Spermatozoa may be exposed to antisperm antibodies in semen and in cervical, ovarian follicular and fallopian fluid.
J. Valentovičová   +2 more
doaj   +1 more source

Properdin and factor H: Opposing players on the alternative complement pathway "see-saw" [PDF]

open access: yes, 2013
This article has been made available through the Brunel Open Access Publishing Fund.Properdin and factor H are two key regulatory proteins having opposite functions in the alternative complement pathway.
Kouser, L   +23 more
core   +1 more source

A gammaherpesvirus complement regulatory protein promotes initiation of infection by activation of protein kinase Akt/PKB. [PDF]

open access: yes, 2010
Viruses have evolved to evade the host's complement system. The open reading frames 4 (ORF4) of gammaherpesviruses encode homologs of regulators of complement activation (RCA) proteins, which inhibit complement activation at the level of C3 and C4 ...
Stewart, James P.   +20 more
core   +1 more source

Overview of Complement Activation and Regulation

open access: yesSeminars in Nephrology, 2013
Complement is an important component of the innate immune system that is crucial for defense from microbial infections and for clearance of immune complexes and injured cells. In normal conditions complement is tightly controlled by a number of fluid-phase and cell surface proteins to avoid injury to autologous tissues.
M. Noris, G. Remuzzi
openaire   +2 more sources

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