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模态双二胺-醇DB2Py (n) - - 特定于AT位点的配体:合成,物理化学分析和生物活性

O Y Susova¹, S S Karshieva¹, A A Kostyukov²

¹N.N. Blokhin National Medical Research Center of Oncology of the Ministry of Health, Moscow, 115522 Russian Federation.

|May 3, 2024

概括

新开发的光 bis-benzimidazole 分子通过向DNA和抑制拓聚酶I,对人类瘤细胞表现出增强的毒性. 这些化合物为新的癌症疗法提供了潜力.

科学领域:

药用化学医学化学
分子生物学分子生物学
药理学药理学是指药理学的学科.

背景情况:

由于它们的多样化的生物活性,西米达衍生物在药物开发中是关键的药剂.
抗生素网素具有影响DNA结合的pyrrolcarboxamide片段.
开发具有提高选择性和有效性的新型抗癌药物仍然是一个重大挑战.

研究的目的:

为了合成和描述新的AT特异性光 bis-benzimidazole分子 (DB2Py(n)) 包含一个类似于netropsin的pyrrolcarboxamide片段.
评估这些新型化合物的DNA结合能力和细胞效应.
评估DB2Py (n) 衍生物对人类瘤细胞系的细胞毒性和作用机制,包括具有多药性耐药性 (MDR) 的细胞系.

主要方法:

合成DB2Py (n) 双胺醇 - 醇衍生物.
使用吸收,光和循环二极化谱学的物理化学表征.
进行DNA复杂化研究.
基于细胞的测试以确定细胞毒性,细胞循环效应和拓酶I抑制.
实时瘤细胞增殖测定.
在具有多药耐药 (MDR) 现型的细胞模型中进行评估.

主要成果:

DB2Py(n) 分子有效地与DNA形成复合体.
与非瘤细胞相比,合成的bis-benzimidazole-pyrroles对人类瘤细胞系具有选择性毒性.
这些化合物透到细胞核,在合成 (S) 阶段阻止细胞循环,并抑制真核细胞拓聚酶I.
分子的二元化增强了它们的细胞毒性.
单体化合物显示出克服MDR的潜力,而二元化减少了这种效应.

结论:

新型DB2Py (n) 双胺-甲醇衍生物是强大的AT特异性DNA结合剂,对人类瘤细胞具有显著的细胞毒性活性.
它们抑制拓聚酶I和影响细胞循环的能力突显了它们作为抗癌剂的潜力.
为了设计新的抗癌药物,需要对它们的作用机制和治疗潜力进行进一步的研究.

关键词:

DNA狭窄槽结合连接体的连接体.结合 DNA 的结合.双二胺醇 - - 烯细胞循环中的细胞循环.细胞毒性细胞毒性多种药物耐药性多种药物耐药性毒性酶 I 的毒性酶 I.

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