Kameswaran, M.; Pandey, U.; Gamre, N.; Vimalnath, K. V.; Sarma, H. D.; Dash, A. (IP&AD;RB&HSD)
Source
Applied Radiation and Isotopes, 2016. Vol. 114: pp. 196-201
ABSTRACT
This study aimed at the preparation an devaluation of 177Lu-CHX-A′′-DTPA-Bevacizumab for targeting VEGF over-expressing cancers. Bevacizumab conjugated top-NCS-Bn-CHX-A′′-DTPA was radio labeled with 177Lu. The radio immuno conjugate characterized by SE-HPLC exhibited radiochemical purity of 98.0±0.6%. In vitro stability was retained upto 4 days at 37 °C. In vitro cell binding studies showed good uptake by VEGF expressing U937 tumor cells. Bio distribution studies inmelanoma model showed significant up take and retention of 177Lu-CHX-A′′-DTPA-Bevacizumab in tumor with reduction in up take in presence of cold Bevacizumab confirming its specificity to VEGF.