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Anti-beta 2-glycoprotein I autoantibodies from patients with the "antiphospholipid" syndrome bind to beta 2-glycoprotein I with low affinity: dimerization of beta 2-glycoprotein I induces a significant increase in anti-beta 2-glycoprotein I antibody affinity.

Journal of immunology (Baltimore, Md. : 1950), 1998
"Antiphospholipid" autoantibodies are associated with arterial and venous thrombosis, recurrent fetal loss, and thrombocytopenia. At present, the best-characterized antigenic target for these autoantibodies (or Abs) is the phospholipid-binding protein beta2-glycoprotein I (beta2GPI).
Y, Sheng, D A, Kandiah, S A, Krilis
openaire   +1 more source

The beta-2-glycoprotein I and antiphospholipid antibodies.

Clinical and experimental rheumatology, 1992
Beta 2-GPI is a single chain, 50 kd glycoprotein made up of 326 amino-acids, present in human plasma at concentrations of about 200 micrograms/ml. It has been shown to represent the "serum cofactor" important in determining the binding of aCL to phospholipids both in fluid and in solid phase assays.
Y, Shoenfeld, P L, Meroni
openaire   +1 more source

Anti-β 2 -Glycoprotein I Autoantibodies and Atherosclerosis

International Reviews of Immunology, 2002
beta 2-Glycoprotein I (beta 2-GPI) is a major antigen for antiphospholipid antibodies (aPL) present in patients with antiphospholipid syndrome (APS). We previously reported that beta 2-GPI specifically binds to oxidized low-density lipoprotein (oxLDL).
Eiji, Matsuura   +6 more
openaire   +2 more sources

Resistance to activated protein C activity of an anti-beta 2-glycoprotein I antibody in the presence of beta 2-glycoprotein I.

British journal of haematology, 1995
Some researchers claim that lupus anticoagulant-positive plasma may cause a false-positive reaction in the test for activated protein C (APC) resistance, a hereditary thrombophilic state characterized by abnormal factor V, which frequently causes venous thrombosis.
J, Matsuda   +5 more
openaire   +1 more source

Beta-2-glycoprotein-I, infections, antiphospholipid syndrome and therapeutic considerations

Clinical Immunology, 2004
Evidence supports the association between infectious agents, antiphospholipid syndrome (APS), and the presence of antiphospholipid antibodies and anti-beta2-glycoprotein-I (beta2GPI) antibodies. Several mechanisms have been proposed to explain the role of bacteria/viruses in induction of an autoimmune condition, such as molecular mimicry between ...
Miri, Blank, Yehuda, Shoenfeld
openaire   +2 more sources

The interaction of beta 2 glycoprotein-I and heparin and its effect on beta 2 glycoprotein-I antiphospholipid antibody cofactor function in plasma.

Thrombosis and haemostasis, 1995
beta 2 glycoprotein-I (beta 2GPI), a cofactor for antiphospholipid antibody (aPA) binding, binds to many anionic macromolecules including heparin. The nature of this interaction with heparin is not well understood and its effect on the purported biological functions of beta 2GPI is unknown.
T, McNally   +4 more
openaire   +1 more source

Anticardiolipin Antibody and Anti-beta 2 Glycoprotein I Antibody Assays

2013
Antiphospholipid syndrome (APS) is an autoimmune disease and is a risk factor for a number of clinical manifestations; the classic presentations include fetal death or thrombosis (arterial or venous thromboembolism), in the presence of persistently increased titers of antiphospholipid (aPL) antibodies.
Anne, Raby   +2 more
openaire   +2 more sources

Beta 2-glycoprotein I--a Bi-Allelic polymorphism.

Acta anthropogenetica, 1981
Population samples from Hungary and India have been typed for beta 2-glycoprotein I concentrations. Whereas the Hungarian sample is in fairly good accord with the genetic model set up by Cleve2-beta 2-glycoprotein I concentrations are controlled by two autosomal codominant alleles BgN and BgD-the Indian samples do not fit this model.
H, Walter   +7 more
openaire   +1 more source

[Investigation of binding capacity of beta 2-glycoprotein I with anti-beta 2-glycoprotein I antibodies in lymphocytes undergoing apoptosis].

[Hokkaido igaku zasshi] The Hokkaido journal of medical science, 2000
Apoptosis (programmed cell death) is accompanied by loss of phospholipid asymmetry, i.e., translocation of aminophospholipids such as phosphatidylserine to the outer leaflet of the plasma membranes, which results in recognition of these cells by macrophages.
openaire   +1 more source

Antibodies to beta(2)-glycoprotein I in ischemic stroke.

Cerebrovascular diseases (Basel, Switzerland), 2000
Antibodies to beta(2)-glycoprotein (beta(2)-GPI) have been associated with recurrent thrombotic events in patients with systemic lupus erythematosus. The present study investigated the prevalence of antibodies to beta(2)-GPI in an unselected group of patients with ischemic stroke.
Fiallo P   +3 more
openaire   +2 more sources

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