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• W4383104075 abstract "The therapy of neuroblastoma relies, amongst other things, on administering chemotherapeutics and radioactive compounds, e.g., the (meta-iodobenzyl)guanidine [131I]mIBG. For special applications (conditioning before stem cell transplantation), busulfan and melphalan (M) proved to be effective. However, both drugs are not used for normal chemotherapy in neuroblastoma because of their side effects. The alkylating drug melphalan contains a (Cl-CH2-CH2-)2N- group in the para-position of the phenyl moiety of the essential amino acid phenylalanine (Phe) and can, therefore, be taken up by virtually all kinds of cells by amino acid transporters. In contrast, mIBG isotopologs are taken up more selectively by neuroblastoma cells via the noradrenaline transporter (NAT). The present study aimed at synthesising and studying hybrid molecules of benzylguanidine (BG) and the alkylating motif of M. Such hybrids should combine the preferential uptake of BGs into neuroblastoma cells with the cytotoxicity of M. Besides the hybrid of BG with the dialkylating group (Cl-CH2-CH2-)2N- bound in the para-position as in M (pMBG), we also synthesised mMBG, which is BG meta-substituted by a (Cl-CH2-CH2-)2N- group. Furthermore, two monoalkylating hybrid molecules were synthesised: the BG para-substituted by a (Cl-CH2-CH2-)NH- group (pM*BG) and the BG meta-substituted by a (Cl-CH2-CH2-)NH- group (mM*BG). The effects of the four new compounds were studied with human neuroblastoma cell lines (SK-N-SH, Kelly, and LS) with regard to uptake, viability, and proliferation by standard test systems. The dialkylating hybrid molecules pMBG and mMBG were at least as effective as M, whereas the monoalkylating hybrid molecules pM*BG and mM*BG were more effective than M. Considering the preferred uptake via the noradrenaline transporter by neuroblastoma cells, we conclude that they might be well suited for therapy." @default.
• W4383104075 created "2023-07-05" @default.
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• W4383104075 date "2023-07-03" @default.
• W4383104075 modified "2023-09-30" @default.
• W4383104075 title "Hybrid Molecules of Benzylguanidine and the Alkylating Group of Melphalan: Synthesis and Effects on Neuroblastoma Cells" @default.
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• W4383104075 doi "https://doi.org/10.3390/jcm12134469" @default.
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