Results 21 to 30 of about 18,716,551 (285)

Deregulation of Factor H by Factor H-Related Protein 1 Depends on Sialylation of Host Surfaces

open access: yesFrontiers in Immunology, 2021
To discriminate between self and non-self surfaces and facilitate immune surveillance, the complement system relies on the interplay between surface-directed activators and regulators.
Arthur Dopler   +10 more
doaj   +1 more source

A Family Affair: Addressing the Challenges of Factor H and the Related Proteins

open access: yesFrontiers in Immunology, 2021
Inflammation is a common denominator of diseases. The complement system, an intrinsic part of the innate immune system, is a key driver of inflammation in numerous disorders.
Felix Poppelaars   +11 more
doaj   +1 more source

Complement inhibitor factor H expressed by breast cancer cells differentiates CD14+ human monocytes into immunosuppressive macrophages

open access: yesOncoImmunology, 2020
Macrophages are a major immune cell type in the tumor microenvironment, where they display a tumor-supporting phenotype. Factor H (FH) is a complement inhibitor that also plays a role in several cellular functions.
Karolina I. Smolag   +8 more
doaj   +1 more source

Effect of complement Factor H on antibody repertoire and protection elicited by meningococcal capsular group B vaccines containing Factor H binding protein

open access: yesHuman Vaccines & Immunotherapeutics, 2020
Bacteria produce surface ligands for host complement regulators including Factor H (FH), which allows the bacteria to evade immunity. Meningococcal Factor H binding protein (FHbp) is both a virulence factor and a vaccine antigen.
Peter T. Beernink
doaj   +1 more source

Factor H Autoantibodies and Complement-Mediated Diseases

open access: yesFrontiers in Immunology, 2020
Factor H (FH), a member of the regulators-of-complement-activation (RCA) family of proteins, circulates in human plasma at concentrations of 180–420 mg/L where it controls the alternative pathway (AP) of complement in the fluid phase and on cell surfaces.
Yuzhou Zhang   +10 more
doaj   +1 more source

Factor H and Neisserial pathogenesis [PDF]

open access: yesVaccine, 2008
Both Neisseria gonorrhoeae and N. meningitidis bind to factor H which enhances their ability to evade complement-dependent killing. While porin is the ligand for human fH on gonococci, meningococci use a lipoprotein called factor H binding protein (fHbp) to bind to factor H and enhance their ability to evade complement-dependent killing.
Jo Anne, Welsch, Sanjay, Ram
openaire   +2 more sources

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   +17 more
core   +1 more source

Rainbow $H$-factors [PDF]

open access: yesThe Electronic Journal of Combinatorics, 2006
An $H$-factor of a graph $G$ is a spanning subgraph of $G$ whose connected components are isomorphic to $H$. Given a properly edge-colored graph $G$, a rainbow $H$-subgraph of $G$ is an $H$-subgraph of $G$ whose edges have distinct colors. A rainbow $H$-factor is an $H$-factor whose components are rainbow $H$-subgraphs.
openaire   +2 more sources

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]

open access: yes, 1991
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 ...
Estaller, C.   +4 more
core   +1 more source

Complement factor H-related proteins CFHR2 and CFHR5 represent novel ligands for the infection-associated CRASP proteins of Borrelia burgdorferi [PDF]

open access: yes, 2010
Background: One virulence property of Borrelia burgdorferi is its resistance to innate immunity, in particular to complement-mediated killing. Serum-resistant B.
Teresia Hallström   +34 more
core   +2 more sources

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