Reversal of multidrug resistance by phenothiazines and structurally related compounds

Reversal of multidrug resistance by phenothiazines and structurally related compounds
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吩噻嗪和结构相关化合物逆转多药耐药性

DOI:
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发表时间:
2004
影响因子:
3
通讯作者:
N. Ramu
N. Ramu
中科院分区:
医学3区
文献类型:
--
作者:
A. Ramu;N. Ramu

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摘要在 MDR P388 细胞中测试了 232 种吩噻嗪和结构相关化合物的多药耐药 (MDR) 逆转活性。在具有通过各种桥类型连接并具有仲或叔胺基团的两个环结构(苯基、环戊基、环己基、噻吩基或5-降冰片烯-2-基,但不是吡啶基)的化合物中发现了这种活性。在 192 个此类化合物中,31.8% 显示出良好的活性(MDR 逆转比,≥10),8.3% 的活性突出(MDR 逆转比,≥30)。在由 56 种具有羰基残基、4 种具有硫酰基残基和 1 种具有噻吩基残基的化合物组成的亚组中,42.7% 显示出良好的活性,18% 显示出出色的活性。这些残基对 MDR 逆转活性的贡献在含有环状叔胺的化合物中尤其明显。在49个这样的化合物中,51%表现出良好的活性,20.4%表现出突出的活性,而在缺乏此类基团的85个化合物中,只有31.8%表现出良好的活性,4.7%表现出突出的活性。当羰基是叔胺的酰胺键的一部分时,也可以通过羰基增强该活性。由于羰基位于环上、胺基桥上或胺之外的化合物是有效的 MDR 逆转剂,因此羰基的精确分子位置对于引发这种活性似乎并不重要。
SummaryThe multidrug-resistance (MDR)-reversal activity of 232 phenothiazines and structurally related compounds was tested in MDR P388 cells. Such activity was found among compounds exhibiting two ring structures (phenyl, cyclopentyl, cyclohexyl, thienyl or 5-norbornen-2-yl but not pyridinyl) linked by a variety of bridge types and possessing a secondary or tertiary amine group. Among 192 such compounds, 31.8% displayed good activity (MDR-reversal ratio, ≥10) and 8.3%, outstanding activity (MDR-reversal ratio, ≥30). In a subgroup comprising 56 compounds with a carbonyl residue, 4 with sulfuryl residue and 1 with thienyl residue, 42.7% showed good activity and 18%, outstanding activity. The contribution of these residues to the MDR-reversal activity was particularly evident among compounds containing a cyclic tertiary amine. Among 49 such compounds, 51% displayed good activity and 20.4%, outstanding activity, whereas among the 85 compounds lacking such groups, only 31.8% showed good activity and 4.7%, outstanding activity. Enhancement of this activity by the carbonyl group is also obtained when the latter is part of an amide bond of a tertiary amine. As compounds with a carbonyl group located on the rings, on the bridge to the amine group or beyond the amine are efficient MDR reversers, it seems that the cxact molecular location of the carbonyl group is not critical for the elicitation of this activity.
DOI: --
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影响因子: 21.1
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