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Inhibition of the cellular uptake of cRGD-PICsomes using echistatin in HUVECs. Black line, untreated cells; red line, cells incubated with Cy3-labeled 100%-cRGD-PICsomes; blue line, cells treated with 10 nM echistatin and incubated with Cy3-labeled 100%-cRGD-PICsomes.
