可电离性半孔二氧化纳米颗粒介导的siAURKB交付用于结直肠癌治疗
Yuhao Yao1, Yuheng Leng1, Xilong Li1
1Lab of Low-Dimensional Materials Chemistry, Key Laboratory for Ultrafine Materials of Ministry of Education, Frontier Science Center of the Materials Biology and Dynamic Chemistry, School of Materials Science and Engineering, East China University of Science and Technology, Shanghai 200237, China. dapengzhang@ecust.edu.cn.
Journal of materials chemistry. B
|March 5, 2026
概括
研究人员开发了一种用于精确结直肠癌 (CRC) 治疗的新型半孔纳米粒子 (MSN) 载体. 这种纳米药物有效地提供小干扰RNA (siRNA),以抑制瘤生长,具有出色的生物相容性.
科学领域:
- 生物医学工程 生物医学工程
- 纳米技术纳米技术
- 在瘤学瘤学.
背景情况:
- 结肠直肠癌 (CRC) 由于发病率和死亡率高,给全球健康带来了重大挑战.
- 传统的治疗方法,如化疗,面临着包括耐药性和毒性在内的局限性.
- 小干扰RNA (siRNA) 提供了针对性CRC治疗的潜力,但高效的输送仍然是一个障碍.
研究的目的:
- 开发一种先进的纳米载体,用于在结直肠癌中有效地传递siRNA.
- 为了提高siRNA的载荷能力和细胞膜透,以提高治疗疗效.
- 创建一种新的纳米药物,用于更精确,更安全的结直肠癌治疗.
主要方法:
- 可电离性半孔性二氧化纳米粒子 (MSNs) 用二甲基胺基组进行表面修饰,以创建MPMNC.
- MPMNC在CT26细胞中表现出增强的细胞吸收和EGFP-293T细胞中的基因沉默.
- 欧罗拉-B siRNA (siAURKB) 被加载到MPMNC上,形成siAURKB@MPMNC,用于CRC小鼠模型的内注射.
主要成果:
- 开发的MPMNC载体显示出高siRNA负载和改善细胞透.
- siAURKB@MPMNC显著抑制了CRC模型小鼠的瘤生长,达到64.9%的抑制率.
- 这种纳米药物在体外和体内均表现出极好的生物相容性.
结论:
- 这项研究介绍了一种新的可电离MSN基纳米载体 (MPMNC),用于在结直肠癌中有效的siRNA输送.
- 开发的纳米医学,siAURKB@MPMNC,通过诱导瘤细胞亡,为CRC提供了一个有前途的治疗策略.
- 用可离子化氨基群对MSNs进行表面修改,代表了推进精确癌症治疗的可行方法.
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