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Targeted delivery of cytotoxic agents limits the severe toxic side-effects of anti-cancer drugs on healthy tissues. Annexin A5 is a well explored probe to target phosphatidylserine (PS)-expressing cells in vivo. Our novel understanding of the cellular and molecular mechanism of annexin A5 as a cell-entry agent and the finding that PS is expressed on living tumour as well as endothelial cells in the tumour vasculature, will allow the development of lead compounds for anti-cancer therapy.
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Kenis et al. (2009) studied this question.
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