含有CeO和ZnO的生物合成双金属纳米颗粒具有形状和大小相关的抗癌作用
Seyed Mahdi Mousavi1, Yaghub Pazhang2,3,4, Asghar Zamani5
1Department of Biology, Faculty of Sciences, Urmia University, Urmia, Iran.
Scientific reports
|December 30, 2025
概括
从核桃中合成的双金属纳米粒子对结直肠和乳腺癌细胞产生抗癌作用. ZnO@CeO2纳米颗粒显示出剂量依赖的细胞毒性作用,诱导细胞亡并提高关键癌症相关基因.
科学领域:
- 纳米技术 纳米技术
- 材料科学 材料科学 材料科学
- 生物医学工程 生物医学工程
背景情况:
- 双金属纳米粒子提供了两种金属的联合功能.
- 氧化 (ZnO) 和二氧化 (CeO2) 纳米粒子具有生物相容性和抗癌性质.
- 核桃粉作为纳米粒子合成的可持续前体.
研究的目的:
- 从核桃粉中合成和表征基于ZnO和CeO2的双金属纳米粒子 (NP).
- 评估这些NP对结直肠 (HCT-116) 和乳腺 (MCF-7) 癌细胞的抗癌作用.
- 研究其作用机制,包括诱导亡和基因表达.
主要方法:
- 从核桃粉中合成ZnCeO3,CeO2@ZnO和ZnO@CeO2 NP.
- 使用紫外线可见光谱和场辐射扫描电子显微镜 (FESEM) 进行了表征.
- 通过MTT测定,诱导亡 (AO染色,Annexin/PI测试) 和基因表达分析 (实时PCR) 评估细胞毒性作用.
主要成果:
- 成功合成了NP,其大小在22-29nm之间.
- ZnO@CeO2 NP对癌细胞表现出剂量依赖的细胞毒性作用,对正常的HUVEC细胞的毒性最小 (IC50 = 487.3μg/mL).
- 在癌细胞中诱导了亡,由 Bax 和 p53 基因表达的升高证明,特别是由 ZnO@CeO2 NPs.
结论:
- 来自核桃的 ZnO@CeO2 纳米颗粒显示出对结直肠和乳腺癌细胞有前途的抗癌活性.
- 抗癌效应由亡诱导介导,并且取决于NP的大小和形状.
- 这些双金属纳米粒子代表了癌症治疗的潜在新型治疗剂.
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