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. Author manuscript; available in PMC: 2016 Nov 1.
Published in final edited form as: Eur J Nucl Med Mol Imaging. 2015 May 28;42(12):1859–1868. doi: 10.1007/s00259-015-3085-7

Fig. 2.

Fig. 2

Concentration dependent inhibition of 125I-echistatin binding to integrin αvβ3 in U87MG cells by c(RGDfK), NOTA-c(RGDfK), NOTA-(PEG)2-c(RGDfK), or NOTA-PEG4-SAA4-c(RGDfK). Solid circles: c(RGDfK) (IC50 = 254 ± 48 nM); solid squares: NOTA-c(RGDfK) (IC50 = 507 ± 62 nM); solid triangles: NOTA-(PEG)2-c(RGDfK) (IC50 = 444 ± 41 nM); solid rhomboids: NOTA-PEG4-SAA4-c(RGDfK) (IC50 = 288 ± 66 nM)