Results 101 to 110 of about 70,452 (309)

A complement component C1q-mediated mechanism of antibody-dependent enhancement of Ebola virus infection

open access: yesPLoS Neglected Tropical Diseases, 2020
Besides the common Fc receptor (FcR)-mediated mechanism of antibody-dependent enhancement (ADE), Ebola virus (EBOV) is known to utilize the complement component C1q for ADE of infection.
Wakako Furuyama   +4 more
semanticscholar   +1 more source

Expression and Function of C1q Receptors and C1q Binding Proteins at the Cell Surface

open access: yesImmunobiology, 2002
C1q is the recognition unit of the first component of complement that binds not only IgG and IgM containing immune complexes, but also recognizes foreign structures such as the lipid A of endotoxin, and molecules expressed at the surface of apoptotic cells. In this review, the plasma membrane receptors and binding proteins for C1q are discussed and new
Shivraj Tyagi   +3 more
openaire   +3 more sources

C1q and its growing family

open access: yesImmunobiology, 2007
C1q is the target recognition protein of the classical complement pathway and a major connecting link between innate and acquired immunity. As a charge pattern recognition molecule of innate immunity, C1q can engage a broad range of self and non-self ligands via its heterotrimeric globular (gC1q) domain and thus trigger the classical pathway.
Ghai, R   +7 more
openaire   +3 more sources

Research progress of neurovascular units involved in ischemic stroke

open access: yesIbrain, EarlyView.
The brain receives less blood when an ischemic stroke develops, which damages neurons and leads to an increased release of Pro‐inflammatory mediators that activate neurovascular unit (NVU). When the tight junctions are broken and the basement membrane is disrupted by matrix metalloproteinases produced by active endothelial and pericellular cells ...
Yu Yang   +4 more
wiley   +1 more source

Evidence for C1q-mediated crosslinking of CD33/LAIR-1 inhibitory immunoreceptors and biological control of CD33/LAIR-1 expression

open access: yesScientific Reports, 2017
C1q collagen-like region (CLR) engaging and activating the LAIR-1 inhibitory immunoreceptor represents a non-complement mechanism for maintaining immune quiescence.
Myoungsun Son   +5 more
doaj   +1 more source

MINI-REVIEW: SYSTEMIC LUPUS ERYTHEMATOSUS AND DEFICIENCIES OF EARLY COMPONENTS OF THE COMPLEMENT CLASSICAL PATHWAY

open access: yesFrontiers in Immunology, 2016
The complement system plays an important role in the innate and acquired immune response against pathogens. It consists of more than 30 proteins found in soluble form or attached to cell membranes. Most complement proteins circulate in inactive forms and
Lourdes eIsaac, Ana Catarina Lunz Macedo
doaj   +1 more source

New trend in molecular diagnostics: Insights from the tumor microenvironment

open access: yesInterdisciplinary Medicine, EarlyView.
The graphical abstract outline the key elements in TME‐based molecular diagnostics, including biomarker exploration, diagnostic methods, and diagnostic models. Source: Created with BioRender.com. Abstract Molecular diagnosis has revolutionized cancer precision medicine.
Baiyuan Fan   +3 more
wiley   +1 more source

Emerging and novel functions of complement protein C1q

open access: yesFrontiers in Immunology, 2015
Complement protein C1q, the recognition subcomponent of the classical pathway, performs a diverse range of complement and non-complement functions. It can bind various ligands derived from self, non-self and altered-self and modulate the functions of ...
Lubna eKouser   +6 more
doaj   +1 more source

Complement C1q as a Potential Biomarker for Obesity and Metabolic Syndrome in Chinese Adolescents

open access: yesFrontiers in Endocrinology, 2020
BackgroundComplement C1q (C1q) has been confirmed to be related to obesity, metabolic syndrome (MetS), and its components. However, human data regarding the associations are relatively scarce.
Xuelian Yang   +4 more
doaj   +1 more source

Structural features of human immunoglobulin G that determine isotype-specific differences in complement activation. [PDF]

open access: yes, 1993
Although very similar in sequence, the four subclasses of human immunoglobulin G (IgG) differ markedly in their ability to activate complement. Glu318-Lys320-Lys322 has been identified as a key binding motif for the first component of complement, C1q ...
Morrison, SL, Smith, RI, Tao, MH
core  

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