Ryu EK, Choe YS, Byun SS, Lee KH, Chi DY, Choi Y, Kim BT. Synthesis of radioiodine labeled dibenzyl disulfide for evaluation of tumor cell uptake.
Bioorg Med Chem 2004;
12:859-64. [PMID:
14980597 DOI:
10.1016/j.bmc.2004.01.002]
[Citation(s) in RCA: 13] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2003] [Revised: 12/26/2003] [Accepted: 01/05/2004] [Indexed: 10/26/2022]
Abstract
Benzyl 4-halobenzyl and ally benzyl disulfide were synthesized as diallyl disulfide analogues and their tumor growth inhibitory effects on the cancer cells (SNU C5 and MCF-7) were comparable to that of diallyl disulfide, indicating that the disulfide functional group was responsible for the tumor growth inhibitory effects. Cu(I)-assisted radioiodination of benzyl 4-bromobenzyl disulfide gave benzyl 4-[123I/125I]iodobenzyl disulfide in 30-40% radiochemical yield. The radiolabeled disulfide was taken up by the cancer cells in a time-dependent manner, and the uptake was inhibited by the pretreatment of S-methyl methanethiosulfonate (MMTS), phorone and diallyl disulfide. This study suggested that the radiolabeled dibenzyl disulfide was taken up by the cancer cells via thiol-disulfide exchange and retained inside the cells.
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