Abstract

AbstractThe anti‐human bladder cancer monoclonal antibody BDI‐1 was radio‐labeled with rhenium‐188 by direct labeling methods using SnCl2 as reductant and MDP as stannous stabilizer or by indirect method using NHS‐ECM ester as bifunctional chelator. Radiochemical yields of 30±7.23% and 87.4±5.67% and radiochemical purity of more than 95% were achieved. The inmmunoreactive fraction was 58.7%. The results showed that radionuclide 188Re might be employed using the same labeling methodology with 99mTc labeling of BDI‐1 for radiommunoimaging (RII) and radioimmunotherapy (RIT) and that may be useful in radioimmunodetection and RIT of human bladder carcinoma in vivo. Copyright © 2001 John Wiley & Sons, Ltd.

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