金属超分子复合体在活体中对癌症干细胞进行反选择性根除
Hongshuang Qin1, Chuanqi Zhao1, Yuhuan Sun1,2
1Laboratory of Chemical Biology and State Key Laboratory of Rare Earth Resource Utilization, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences , Changchun, Jilin 130022, China.
Journal of the American Chemical Society
|October 14, 2017
概括
一种新型的性金属通过破坏端粒来选择性地向和消灭癌症干细胞 (CSCs). 这种抗选择性化合物[Ni2L3]4+-P提供了对抗耐药性乳腺癌及其复发的有希望的策略.
科学领域:
- 医学化学
- 癌症生物学
- 纳米技术
背景情况:
- 癌症干细胞 (CSCs) 推动瘤复发,转移和耐药性,但缺乏向治疗.
- 端粒G四重复基因对端粒酶活性和染色体稳定性至关重要,使其成为潜在的治疗点.
- 在开发选择性药物设计策略方面,基质分子识别至关重要.
研究的目的:
- 开发一种特定的CSC向剂,
- 调查合金属对乳腺中枢细胞的反选择性作用.
- 阐明目标药物消灭CSC的机制.
主要方法:
- 合成和表征类似指的奇拉金属,特别是[Ni2L3]4+反体.
- 在实验室中对乳腺癌细胞与大量癌细胞的细胞生长抑制进行评估.
- 在小鼠模型中评估瘤生长抑制的体内研究.
- 对CSC特性,亡诱导,hTERT的核转移和端粒损伤的分析.
主要成果:
- 与其对应物[Ni2L3]4+-M不同的是,[Ni2L3]4+-P反体选择性地减少了乳房中枢细胞的生长.
- [Ni2L3]4+-P抑制了CSC特征,通过端粒解和DNA损伤诱导了细胞亡,并抑制了hTERT核转移.
- 在体内,[Ni2L3]4+-P显著降低了乳腺中枢细胞瘤的产生,显示出强大的反选择性.
结论:
- 基拉尔金属,特别是[Ni2L3]4+-P反体,在消除乳腺CSC方面表现出显著的反选择性.
- 这项研究提供了通过与端粒相关的机制有效向和消除CSC的第一个报告.
- 这些发现为抗药性癌症提供了新的治疗途径,
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