Results 151 to 160 of about 9,704 (180)

A C1q domain containing protein from Crassostrea gigas serves as pattern recognition receptor and opsonin with high binding affinity to LPS

Fish and Shellfish Immunology, 2015
C1q proteins serve as pattern recognition receptors and involve in the pathogen recognition and complement pathway activation. In the present study, a novel C1q domain containing protein from Crassostrea gigas (designated CgC1qDC-1) was isolated by liposaccharide-Sepharose 6B affinity chromatography. The coding sequence of CgC1qDC-1 gene was determined
Shuai Jiang, Lingling Wang, Linsheng Song   +2 more
exaly   +3 more sources

Protein corona meets freeze-drying: overcoming the challenges of colloidal stability, toxicity, and opsonin adsorption

Nanoscale, 2021
Freeze-drying of nanoparticle suspensions in presence of pre-formed protein corona is capable of generating stable nanoformulations with improved biocompatibility, longer storage times and easier transportation.
Agustin S. Picco, Gabriela Borba Mondo, Larissa Fernanda Ferreira, Edmarcia Elisa de Souza, Luís Antonio Peroni, Mateus Borba Cardoso   +5 more
openaire   +3 more sources

Effects of Staphylococcal Protein a on Heat Labile Opsonins

The Journal of Immunology, 1974
Abstract Staphylococcal protein A inhibited phagocytosis of Staphylococcus aureus and Escherichia coli in in vitro phagocytosis systems with normal human serum. Protein A had no effect on phagocytic cells per se, and produced inhibition of the heat labile opsonins, i.e., of the complement system in normal sera at low concentration.
A, Forsgren, P G, Quie
openaire   +2 more sources

Heparin Binding Protein (CAP37) is an Opsonin for Staphylococcus aureus and Increases Phagocytosis in Monocytes

Inflammation, 1998
Heparin binding protein (HBP), also known as cationic antibiotic protein (CAP37) or azurocidin, is stored in azurophilic granules of neutrophils and is released to the extracellular space when granulocytes phagocytose Staphylococcus aureus. We investigated whether extracellular HBP also has the potential to increase phagocytosis of S.
M, Heinzelmann, A, Platz, H, Flodgaard, F N, Miller   +3 more
openaire   +2 more sources

Surfactant protein A, but not surfactant protein D, is an opsonin for influenza A virus phagocytosis by rat alveolar macrophages

European Journal of Immunology, 1997
AbstractSurfactant protein A (SP‐A) and surfactant protein D (SP‐D) are collectins, and both proteins were shown to interact with influenza A virus and alveolar macrophages. However, it is not known whether SP‐A and SP‐D can serve as opsonins for the phagocytosis of influenza A virus by alveolar macrophages.
Benne, C.A., Benaissa-Trouw, B.J., van Strijp, J.A.G., Kraaijeveld, C.A., van Iwaarden, J.F.   +4 more
openaire   +3 more sources

Role of de Novo Protein Synthesis by Human Mononuclear Leukocytes in Opsonin-Independent Phagocytosis

Cellular Immunology, 1994
Human peripheral blood lymphocytes or the soluble (105,000g) supernatant of the lymphocyte lysate can increase the percentage of human monocytes ingesting particulate activators of the human alternative complement pathway, e.g., rabbit erythrocytes (Chakravarti et al., J. Immunol. 137, 880, 1986).
B, Chakravarti, D N, Chakravarti, H J, Müller-Eberhard   +2 more
openaire   +2 more sources

Surfactant protein A is opsonin in phagocytosis of herpes simplex virus type 1 by rat alveolar macrophages

American Journal of Physiology-Lung Cellular and Molecular Physiology, 1991
In the present study we used flow cytometry to investigate the phagocytosis of fluorescein isothiocyanate-labeled herpes simplex virus type 1 (FITC-HSV-1) by rat alveolar macrophages and the effects of surfactant protein A (SP-A) on this process.
J F, van Iwaarden, J A, van Strijp, M J, Ebskamp, A C, Welmers, J, Verhoef, L M, van Golde   +5 more
openaire   +2 more sources

Complement-like protein from the phylogenetically primitive vertebrate,Eptatretus Stouti, is a Humoral Opsonin

Comparative Biochemistry and Physiology Part B: Comparative Biochemistry, 1992
Abstract 1. 1. Serum from the Pacific hagfish,Eptatretus stouti,contains a complement-like protein (CLP). 2. 2. CLP from unfractionated hagfish serum and from affinity-purified preparations binds to yeast cell surfaces. 3. 3. Incubation with CLP enhances the phagocytosis of yeast by hagfish leukocytes. 4. 4.
David A. Raftos, Jeffrey W. Hook, Robert L. Raison   +2 more
openaire   +1 more source

Is C-Reactive Protein an Inflammation Opsonin That Signals Colon Cancer Risk?

JAMA, 2004
OLORECTAL CANCER IS A LEADING CAUSE OF CANCERrelated morbidity and mortality in the Western world. A personal history of inflammatory bowel disease (IBD) is a well-established risk factor for colorectal cancer. Recent data suggest that the risk of colorectal cancer for individuals with IBD increases by 0.5% to 1.0% yearly, 8 to 10 years after diagnosis.
openaire   +1 more source

Molecular regulation of phagocyte function. Evidence for involvement of a guanosine triphosphate-binding protein in opsonin-mediated phagocytosis by monocytes.

The Journal of Immunology, 1987
Abstract Although many functions of phagocytes are known to be regulated by guanosine triphosphate (GTP)-binding proteins, phagocytosis itself has not been considered one of these. However, previous studies have examined only unstimulated neutrophil phagocytosis.
E J, Brown, A M, Newell, H D, Gresham
openaire   +2 more sources