Transbilayer redistribution of phosphatidylserine in erythrocytes of a patient with autoerythrocyte sensitization syndrome (psychogenic purpura)
Strunecká, A.; Krpejsová, L.; Palecek, J.; Mácha, J.; Maturová, M.; Rosa, L.; Palecková, A.
Folia Haematologica 117(6): 829-841
1990
ISSN/ISBN: 0323-4347 PMID: 1713890 Document Number: 348542
We have investigated a female patient with autoerythrocyte sensitization syndrome (AES syndrome), having a positive skin response to her own red blood cells (RBC) and to phosphatidylserine (PS). Using 2,4,6-trinitrobenzenesulfonic acid (TNBS), bee venom phospholipase A2 and merocyanine 540 binding, we have demonstrated that in RBC of patient more than 50% of PS is redistributed into the outer leaflet of the plasma membrane. Using homologous RBC from a healthy donor we were able to induce transbilayer PS redistribution by incubation with the patient plasma. The presence of immunoglobulin E against cardiolipin and PS was proven in patient's plasma. We elaborated a method for cytoskeleton visualization using indirect immunflouresecence technique. We found disorders in cytoskeleton organization in RBC of the patient. We recommend in vitro testing for AES syndrome diagnosis. The positive effect of chlorpromazine treatment is described.