⁹⁹mTc carbonyl DTPA-rituximab: preparation and preliminary bioevaluation
- PMID: 24486518
- DOI: 10.1016/j.apradiso.2013.12.036
⁹⁹mTc carbonyl DTPA-rituximab: preparation and preliminary bioevaluation
Abstract
The anti CD20 antibody Rituximab was conjugated with para isothiocyanato benzyl diethylene triamine penta acetic acid (p-NCS-Bz-DTPA) and subsequent radiolabeling with (99m)Tc was carried out via the (99m)Tc carbonyl synthon. The (99m)Tc labeled antibody conjugate exhibited >95% radiochemical purity after purification and retained good in vitro stability when studied up to 24h at room temperature. In vitro cell binding studies carried out in Raji cells expressing CD20 antigen validated the biological efficacy of the preparation.
Keywords: (99m)Tc carbonyl–DTPA–Rituximab; Non-Hodgkin's lymphoma (NHL); Radioimmunoscintigraphy; Rituximab.
Copyright © 2014 Elsevier Ltd. All rights reserved.
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