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首页> 外文期刊>Journal of the Indian Chemical Society >Cytotoxic properties of two families of benzaldehyde thiosemicarbazone complexes of palladium
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Cytotoxic properties of two families of benzaldehyde thiosemicarbazone complexes of palladium

机译:钯的两个家族的苯甲醛硫半脲酮配合物的细胞毒特性

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摘要

Reaction of 4-R-benzaldehyde thiosemicarbazones (HL-R, where H stands for the dissociable hydrazinic proton and R (R = OCH3, CH3, H, Cl and NG2) for the substituent) with trans-[Pd(PPh3)2Cl2] and Na2[PdCl4] afford complexes of type [Pd(PPh3)(L-R)Cl] and [Pd(L-R)2] respectively. In vitro cytotoxicity screenings of these complexes along with four human clinical drugs, viz. cisplatin, BCNU, 5-fluorouracil (5-FU) and hydroxyurea, have been carried out in two human tumor cell lines, viz. promyelocytic leukemia HL-60 and histiocytic lymphoma U-937. Majority of these complexes show remarkably low IC_(50) value and are found to be much more cytotoxic than the reference anticancer drugs in both the cell lines. Apoptosis study in HL-60 with two selected complexes from each group shows that at 5 and 10 μM concentration they induce apoptosis to a greater extent than cisplatin and camptothecin.
机译:4-R-苯甲醛硫代半氨基甲酮(HL-R,其中H表示可分解的肼基质子,R(R = OCH3,CH3,H,Cl和NG2)表示取代基)与反式-[Pd(PPh3)2Cl2]反应Na2 [PdCl4]和Na2 [PdCl4]分别提供[Pd(PPh3)(LR)Cl]和[Pd(LR)2]类型的配合物。这些复合物与四种人类临床药物的体外细胞毒性筛选。顺铂,BCNU,5-氟尿嘧啶(5-FU)和羟基脲已在两种人类肿瘤细胞系中进行。早幼粒细胞白血病HL-60和组织细胞性淋巴瘤U-937。这些复合物的大多数显示出非常低的IC_(50)值,并且在这两种细胞系中均被发现比参考抗癌药具有更高的细胞毒性。在HL-60中从每组中选择两种复合物进行的细胞凋亡研究表明,与顺铂和喜树碱相比,它们在5和10μM浓度下诱导凋亡的程度更大。

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