The invention relates to a method for improving the procoagulant properties of TF expressed in eukaryotic cells by contacting microvesicles derived from said eukaryotic cells with a negatively-charged phospholipid such as phosphatidylserine. The invention also relates to microvesicles obtained using said method as well as to the uses thereof as procoagulant agents, for wound healing and for promoting angiogenesis.