Clinical significance of anti-annexin V antibodies in patients with systemic lupus erythematosus

Am J Hematol. 1997 Mar;54(3):209-13. doi: 10.1002/(sici)1096-8652(199703)54:3<209::aid-ajh6>3.0.co;2-#.

Abstract

Annexin V has a calcium-dependent binding affinity for anionic phospholipids and activated platelets, and prevents prothrombinase activity. We investigated the clinical significance of IgG anti-annexin V antibodies in patients with SLE. The study population consisted of 140 patients with SLE. Sera were examined for IgG anti-annexin V antibodies by ELISA. IgG anti-annexin V antibodies were detected in 27 of 140 patients (19%). Significantly higher incidences of arterial or venous thrombosis, intrauterine fetal loss, and prolonged activated partial thromboplastin time were found in patients with anti-annexin V antibodies than in those without anti-annexin V antibodies. Three patients with thrombosis were found not to have anticardiolipin antibodies, but to show sustained serological reactions for anti-annexin V antibodies, irrespective of prednisolone administration. These results indicated the clinical characteristics of SLE patients with anti-annexin V antibodies, and that these antibodies may be associated with the pathogenesis of thrombotic events.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Adult
  • Annexin A5 / immunology*
  • Antibodies / analysis
  • Antibodies / immunology*
  • Female
  • Humans
  • Lupus Erythematosus, Systemic / complications
  • Lupus Erythematosus, Systemic / immunology*
  • Lupus Erythematosus, Systemic / physiopathology
  • Male
  • Middle Aged
  • Risk Factors
  • Thrombosis / etiology
  • Thrombosis / immunology*

Substances

  • Annexin A5
  • Antibodies