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The binding properties of a set of four hybrids, prepared combining from one to four polypyrrole minor groove binders and pyrrolo [2,1-c][1,4]benzodiazepine (PBD), have been studied using as target molecule the HIV-1 TAR-RNA. We found that these hybrids bind to TAR-RNA and inhibit TAR/protein(s) interactions. The anti-proliferative activity of the hybrids has been tested in vitro on HL3T1 cells and...
DNA minor-groove binding drugs have been extensively studied in the last years in order to influence the regulation of gene expression in neoplastic disorders by means of specific interactions with DNA bases. Pyrrolo[2,1-c][1,4]benzodiazepines (PBDs), CC-1065 and distamycins are three classes of minor-groove alkylating agents which showed interesting cytotoxicity profiles, but they cannot be used...
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