Domain V Peptides Inhibit β2-Glycoprotein I-Mediated Mesenteric Ischemia/Reperfusion-Induced Tissue Damage and Inflammation

Small β2-glycoprotein I peptides protect from intestinal ischemia reperfusion injury.

Intestinal ischemic events, which are followed by reperfusion, induce significant tissue damage and frequently result in multiple organ failure, with >70% mortality. Upon reperfusion, excessive inflammation leads to exacerbated tissue damage. Previous studies indicated that binding of the serum protein, β2-glycoprotein I, to the endothelium initiates a cascade of inflammatory molecules that is ...

Optimization of Unnicked β2-Glycoprotein I and High Avidity Anti-β2-Glycoprotein I Antibodies Isolation

Patient biological material for isolation of β2-glycoprotein I (β2GPI) and high avidity IgG anti-β2-glycoprotein I antibodies (HAv anti-β2GPI) dictates its full utilization. The aim of our study was to evaluate/improve procedures for isolation of unnicked β2GPI and HAv aβ2GPI to gain unmodified proteins in higher yields/purity. Isolation of β2GPI from plasma was a stepwise procedure combining n...

Structural Changes in β2-Glycoprotein I and the Antiphospholipid Syndrome

Are Oxidized LDL/β2-glycoprotein I Complexes Pathogenic Antigens in Autoimmune-mediated Atherosclerosis?

The oxidative modification of low-density lipoprotein (LDL) in the intima of arteries contributes to the initiation and progression of atherosclerotic lesions. We have previously reported that oxidized LDL (oxLDL) interacts with an endogenous plasma protein, beta2-glycoprotein I (beta2GPI), to form complexes and that the interaction is mediated by oxLDL specific ligands. We have also demonstrat...

Anti-β2 glycoprotein-I antibody increases the risk of pregnancy-induced hypertension: a case-control study

The aim of this study was to evaluate whether IgG, IgM anti-β2 glycoprotein-I antibody (anti-β 2GPI) was associated with the development of pregnancy-induced hypertension (PIH) or pre-eclampsia in the Japanese population. This study was performed as a case-control study in cohort. The peripheral blood was obtained at 8-14 weeks of gestation from a consecutive series of 1,155 women. The case gro...