Results 1 to 10 of about 9,704 (180)

Microbes bind complement inhibitor factor H via a common site. [PDF]

open access: yesPLoS Pathogens, 2013
To cause infections microbes need to evade host defense systems, one of these being the evolutionarily old and important arm of innate immunity, the alternative pathway of complement. It can attack all kinds of targets and is tightly controlled in plasma
T Meri   +9 more
doaj   +8 more sources

Crystal structure of a tripartite complex between C3dg, C-terminal domains of factor H and OspE of Borrelia burgdorferi. [PDF]

open access: yesPLoS ONE, 2017
Complement is an important part of innate immunity. The alternative pathway of complement is activated when the main opsonin, C3b coats non-protected surfaces leading to opsonisation, phagocytosis and cell lysis.
Robert Kolodziejczyk   +6 more
doaj   +8 more sources

ROLE OF IMMUNOGLOBULIN G (IgG) FROM THE INDUCTION OF Escherichia coli PILI ADHESION PROTEIN ISOLATED FROM INFERTILE MALE SEMEN WITH 32.2 KDA MOLECULAR WEIGHT AS OPSONIN AND ANTI-ADHESION AN IN VITRO Escherichia coli INFECTION

open access: yesFolia Medica Indonesiana, 2017
Escherichia coli (E. coli), a major cause of male genital tract infections, is asymptomatic and may result in male infertility. We have succeeded in isolating and characterizing proteins of E.
Sukarjati Sukarjati, Susie Amilah
doaj   +3 more sources

PEGylated Strontium Sulfite Nanoparticles with Spontaneously Formed Surface-Embedded Protein Corona Restrict Off-Target Distribution and Accelerate Breast Tumour-Selective Delivery of siRNA

open access: yesJournal of Functional Biomaterials, 2022
As transporters of RNAi therapeutics in preclinical and clinical studies, the application of nanoparticles is often hindered by their susceptibility to opsonin-mediated clearance, poor biological stability, ineffectual targeting, and undesirable effects ...
Md. Emranul Karim   +1 more
doaj   +1 more source

The protein corona modulates the inflammation inhibition by cationic nanoparticles via cell-free DNA scavenging

open access: yesBioactive Materials, 2022
A central paradigm in nanomedicine is that when synthetic nanoparticles (NPs) enter the body, they are immediately cloaked by a corona of macromolecules (mostly proteins) that mediates the role of the physico-chemical properties in the NP biological ...
Xingliang Liu   +6 more
doaj   +1 more source

Lipoprotein(a), an Opsonin, Enhances the Phagocytosis of Nontypeable Haemophilus influenzae by Macrophages

open access: yesJournal of Immunology Research, 2021
We recently showed that both nontypeable Haemophilus influenzae (NTHi) and its surface plasminogen- (Plg-) binding proteins interact with lipoprotein(a) (Lp(a)) in a lysine-dependent manner.
Zhi Liu   +6 more
doaj   +1 more source

Neutrophil Elastase and Chronic Lung Disease

open access: yesBiomolecules, 2021
Neutrophil elastase (NE) is a major inflammatory protease released by neutrophils and is present in the airways of patients with cystic fibrosis (CF), chronic obstructive pulmonary disease, non-CF bronchiectasis, and bronchopulmonary dysplasia.
Judith A. Voynow, Meagan Shinbashi
doaj   +1 more source

The human mannose-binding protein functions as an opsonin. [PDF]

open access: yesThe Journal of experimental medicine, 1989
The human mannose-binding protein (MBP) is a multimeric serum protein that is divided into three domains: a cysteine-rich NH2-terminal domain that stabilizes the alpha-helix of the second collagen-like domain, and a third COOH-terminal carbohydrate binding region.
M, Kuhlman, K, Joiner, R A, Ezekowitz
openaire   +2 more sources

An Insect Multiligand Recognition Protein Functions as an Opsonin for the Phagocytosis of Microorganisms [PDF]

open access: yesJournal of Biological Chemistry, 2010
We characterize a novel pathogen recognition protein obtained from the lepidopteran Galleria mellonella. This protein recognizes Escherichia coli, Micrococcus luteus, and Candida albicans via specific binding to lipopolysaccharides, lipoteichoic acid, and beta-1,3-glucan, respectively. As a multiligand receptor capable of coping with a broad variety of
Chong Han, Kim   +6 more
openaire   +2 more sources

Human mannose-binding protein functions as an opsonin for influenza A viruses. [PDF]

open access: yesJournal of Clinical Investigation, 1993
Influenza A viruses (IAVs) cause substantial morbidity and mortality in yearly epidemics, which result from the ability of the virus to alter the antigenicity of its envelope proteins. Despite the rapid replication of this virus and its ability to infect a wide variety of cell types, viremia is rare and the infection is generally limited to the upper ...
K L, Hartshorn   +6 more
openaire   +2 more sources

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