Post-HDX Deglycosylation of Fc Gamma Receptor IIIa Glycoprotein Enables HDX Characterization of Its Binding Interface with IgG

2021 ◽  
Author(s):  
Nicole D. Wagner ◽  
Yining Huang ◽  
Tun Liu ◽  
Michael L. Gross
Keyword(s):  
Fc Gamma Receptor ◽  
Gamma Receptor ◽  
Binding Interface

Characterization of Fc gamma receptor IIb expression within abdominal aortic aneurysm

2017 ◽  
Vol 485 (2) ◽  
pp. 295-300 ◽  
Author(s):  
Yi Shi ◽  
Ci-Qiu Yang ◽  
Si-Wen Wang ◽  
Wen Li ◽  
Jie Li ◽  
...  
Keyword(s):  
Abdominal Aortic Aneurysm ◽  
Aortic Aneurysm ◽  
Fc Gamma Receptor ◽  
Gamma Receptor ◽  
Abdominal Aortic

Cloning and characterization of porcine Fc gamma receptor II (FcγRII)

2006 ◽  
Vol 114 (1-2) ◽  
pp. 178-184 ◽  
Author(s):  
Songlin Qiao ◽  
Gaiping Zhang ◽  
Chun Xia ◽  
Hong Zhang ◽  
Yuyang Zhang ◽  
...  
Keyword(s):  
Fc Gamma Receptor ◽  
Gamma Receptor

scholarly journals Cross-linking of Fc gamma receptor to surface immunoglobulin on B cells provides an inhibitory signal that closes the plasma membrane calcium channel

1994 ◽  
Vol 269 (15) ◽  
pp. 11409-11416
Author(s):  
M.L. Diegel ◽  
B.M. Rankin ◽  
J.B. Bolen ◽  
P.M. Dubois ◽  
P.A. Kiener
Keyword(s):  
Plasma Membrane ◽  
B Cells ◽  
Calcium Channel ◽  
Cross Linking ◽  
Fc Gamma Receptor ◽  
Inhibitory Signal ◽  
Surface Immunoglobulin ◽  
Gamma Receptor

scholarly journals Prominent Indomethacin-Induced Enteropathy in Fcgriib Defi-cient lupus Mice: An Impact of Macrophage Responses and Immune Deposition in Gut

2021 ◽  
Vol 22 (3) ◽  
pp. 1377
Author(s):  
Thansita Bhunyakarnjanarat ◽  
Kanyarat Udompornpitak ◽  
Wilasinee Saisorn ◽  
Bhumdhanin Chantraprapawat ◽  
Peerapat Visitchanakun ◽  
...  
Keyword(s):  
Cytokine Production ◽  
High Dose ◽  
Flux Analysis ◽  
Wild Type ◽  
Fc Gamma Receptor ◽  
Serum Cytokines ◽  
Extracellular Flux ◽  
Gamma Receptor ◽  
Gut Leakage ◽  
Gastrointestinal Permeability

A high dose of NSAIDs, a common analgesic, might induce lupus activity through several NSAIDs adverse effects including gastrointestinal permeability defect (gut leakage) and endotoxemia. Indomethacin (25 mg/day) was orally administered for 7 days in 24-wk-old Fc gamma receptor IIb deficient (FcgRIIb-/-) mice, an asymptomatic lupus model (increased anti-dsDNA without lupus nephritis), and age-matched wild-type (WT) mice. Severity of indomethacin-induced enteropathy in FcgRIIb-/- mice was higher than WT mice as demonstrated by survival analysis, intestinal injury (histology, immune-deposition, and intestinal cytokines), gut leakage (FITC-dextran assay and endotoxemia), serum cytokines, and lupus characteristics (anti-dsDNA, renal injury, and proteinuria). Prominent responses of FcgRIIb-/- macrophages toward lipopolysaccharide (LPS) compared to WT cells due to the expression of only activating-FcgRs without inhibitory-FcgRIIb were demonstrated. Extracellular flux analysis indicated the greater mitochondria activity (increased respiratory capacity and respiratory reserve) in FcgRIIb-/- macrophages with a concordant decrease in glycolysis activity when compared to WT cells. In conclusion, gut leakage-induced endotoxemia is more severe in indomethacin-administered FcgRIIb-/- mice than WT, possibly due to the enhanced indomethacin toxicity from lupus-induced intestinal immune-deposition. Due to a lack of inhibitory-FcgRIIb expression, mitochondrial function, and cytokine production of FcgRIIb-/- macrophages were more prominent than WT cells. Hence, lupus disease-activation from NSAIDs-enteropathy-induced gut leakage is possible.

scholarly journals Sublocalization of the human interferon-gamma receptor accessory factor gene and characterization of accessory factor activity by yeast artificial chromosomal fragmentation.

1994 ◽  
Vol 269 (9) ◽  
pp. 7013-7018
Author(s):  
J.R. Cook ◽  
S.L. Emanuel ◽  
R.J. Donnelly ◽  
J. Soh ◽  
T.M. Mariano ◽  
...  
Keyword(s):  
Interferon Gamma ◽  
Human Interferon ◽  
Factor Activity ◽  
Factor Gene ◽  
Gamma Receptor ◽  
Accessory Factor

scholarly journals Murine autoimmune hemolytic anemia resulting from Fc gamma receptor- mediated erythrophagocytosis: protection by erythropoietin but not by interleukin-3, and aggravation by granulocyte-macrophage colony- stimulating factor

Blood ◽  
1992 ◽  
Vol 79 (11) ◽  
pp. 2960-2964 ◽  
Author(s):  
T Berney ◽  
T Shibata ◽  
R Merino ◽  
Y Chicheportiche ◽  
V Kindler ◽  
...  
Keyword(s):  
Monoclonal Antibody ◽  
Hemolytic Anemia ◽  
Autoimmune Hemolytic Anemia ◽  
Colony Stimulating Factor ◽  
Fc Gamma Receptor ◽  
Interleukin 3 ◽  
Gamma Receptor ◽  
Macrophage Colony Stimulating Factor ◽  
Macrophage Colony ◽  
Stimulating Factor

Abstract We have evaluated the therapeutic activity of recombinant erythropoietin (rEpo), in comparison with recombinant interleukin-3 (rIL-3) and granulocyte-macrophage colony-stimulating factor (rGM-CSF), on a lethal form of acute anemia resulting from Fc gamma receptor- mediated erythrophagocytosis after a single injection (500 micrograms) of a monoclonal anti-mouse red blood cell (MRBC) autoantibody. Continuous perfusion of rEpo before the administration of anti-MRBC monoclonal antibody completely protected animals from death due to anemia with a rapid recovery, while no protection was obtained by rIL-3 perfusion. In contrast, rGM-CSF perfusion markedly accelerated the progression of anemia and the mortality rate. This was found to result from an enhancement of erythrophagocytosis by Kupffer cells and by polymorphonuclear leukocytes that massively infiltrated the livers. Even after the injection of a sublethal dose (100 micrograms) of anti- MRBC monoclonal antibody, rGM-CSF-perfused mice died of a severe form of acute anemia. Furthermore, we have shown that rEpo was able to treat efficiently a spontaneous form of autoimmune hemolytic anemia in a majority of anemic NZB mice, whereas rGM-CSF markedly aggravated anemia. This may be of clinical importance, because GM-CSF administration could exhibit an adverse effect in some autoimmune diseases that involve autoimmune anemia.

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