Figure 7. Shielding of exofacial phosphatidylserine domains by pretreatment of stressed HUVEC with annexin A5 reduces the rate of lysosomal exchange from intact EPC. Flow cytometric quantification was performed. Control – the rate of exchange in stressed HUVEC. Annexin A5 – same as control after pretreatment with Annexin A5 (BD Bioscience, San Diego, CA). Asterisks depict p< 0.05;n=6.