Induction of antiphospholipid autoantibodies by immunization with beta 2 glycoprotein I (apolipoprotein H).
basic_science · Level V
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- Record sourced from PubMed, PMID 1522219.
- Also identified by PMC identifier 329971.
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Abstract
A subset of patients with systemic lupus erythematosus has autoantibodies to acidic phospholipids. Since lipids are poor immunogens, the mechanism responsible for the induction of these antibodies is unclear. Immunization of a normal rabbit and normal mice with purified human beta 2-glycoprotein I (apolipoprotein H) resulted in the production of high levels of two non-cross-reactive antibody populations, anti-apolipoprotein H, and antiphospholipid. The antiphospholipid antibodies had binding specificities indistinguishable from autoantibodies obtained from human and murine lupus. These findings suggest a novel mechanism for the induction of antiphospholipid autoantibodies.
Medical subject headings
- Apolipoproteins
- Autoantibodies
- Glycoproteins
- Phospholipids