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Designing Aptamer-Gold Nanoparticle-Loaded pH-Sensitive Liposomes Encapsulate Morin for Treating Cancer
Nanoscale Research Letters ( IF 5.418 ) Pub Date : 2020-03-30 , DOI: 10.1186/s11671-020-03297-x
Xiaoyuan Ding , Chenyang Yin , Weiwei Zhang , Yu Sun , Zhenzhen Zhang , Endong Yang , Dongdong Sun , Weiyun Wang

Abstract

This study proposes the synthesis of a type of anticancer nanoparticle, aptamers and Au nanoparticle (Apt-Au)-modified Morin pH-sensitive liposome (MSL), which exhibits targeting properties. Tumors are difficult to cure because their microenvironment varies from that of normal tissue; its pH is lower than that of normal tissue, which generally impedes the effectiveness of drugs. Thus, pH-responsive drugs have attracted extensive attention. Gold nanoparticles (AuNPs) show potential as drug carriers because of their small size, good biocompatibility, easy surface modification, and strong cell penetration. Apt-Au@MSL exhibits excellent monodispersity and tumor-targeting properties and can be released in partly acidic environment via dialysis. We screened our model cancer cell by MTT assay and found that SGC-7901 cells can effectively suppress proliferation. In vivo results demonstrate that the administration of Apt-Au@MSL could inhibit tumor growth in xenograft mouse models. H&E staining and TUNEL assay further confirmed that Apt-Au@MSL can promote tumor apoptosis. Apt-Au@MSL may induce apoptosis by triggering overproduction of reactive oxygen species (ROS) and regulating multiple signal crosstalk. Both blood biochemistry tests and H&E staining suggested that these materials exhibit negligible acute toxicity and good biocompatibility in vivo. With its powerful function, Apt-Au@MSL can be used as a target-based anticancer material for future clinical cancer treatment.



中文翻译:

设计载有适体金纳米颗粒的pH敏感脂质体包封了桑色素以治疗癌症

摘要

这项研究提出了合成的一种抗癌纳米粒子,适体和金纳米粒子(Apt-Au)修饰的莫林pH敏感脂质体(MSL)的合成。肿瘤的微环境与正常组织不同,因此很难治愈。它的pH值低于正常组织的pH,这通常会阻碍药物的有效性。因此,pH响应药物引起了广泛的关注。金纳米粒子(AuNPs)具有体积小,生物相容性好,易于表面修饰和强大的细胞渗透性等优点,因此具有作为药物载体的潜力。Apt-Au @ MSL具有出色的单分散性和靶向肿瘤的特性,可通过透析在部分酸性环境中释放。我们通过MTT分析筛选了模型癌细胞,发现SGC-7901细胞可以有效抑制增殖。体内结果表明,Apt-Au @ MSL的施用可以抑制异种移植小鼠模型中的肿瘤生长。H&E染色和TUNEL分析进一步证实Apt-Au @ MSL可以促进肿瘤细胞凋亡。Apt-Au @ MSL可能通过触发活性氧(ROS)的过量产生并调节多个信号串扰来诱导细胞凋亡。血液生化测试和H&E染色均表明这些材料在体内的急性毒性可忽略不计,并且具有良好的生物相容性。凭借其强大的功能,Apt-Au @ MSL可以用作基于靶标的抗癌材料,用于未来的临床癌症治疗。体内结果表明,Apt-Au @ MSL的施用可以抑制异种移植小鼠模型中的肿瘤生长。H&E染色和TUNEL分析进一步证实Apt-Au @ MSL可以促进肿瘤细胞凋亡。Apt-Au @ MSL可能通过触发活性氧(ROS)的过量产生并调节多个信号串扰来诱导细胞凋亡。血液生化测试和H&E染色均表明这些材料在体内的急性毒性可忽略不计,并且具有良好的生物相容性。凭借其强大的功能,Apt-Au @ MSL可以用作基于靶标的抗癌材料,用于未来的临床癌症治疗。体内结果表明,Apt-Au @ MSL的施用可以抑制异种移植小鼠模型中的肿瘤生长。H&E染色和TUNEL分析进一步证实Apt-Au @ MSL可以促进肿瘤细胞凋亡。Apt-Au @ MSL可能通过触发活性氧(ROS)的过量产生并调节多信号串扰来诱导细胞凋亡。血液生化测试和H&E染色均表明这些材料在体内的急性毒性可忽略不计,并且具有良好的生物相容性。凭借其强大的功能,Apt-Au @ MSL可以用作基于靶标的抗癌材料,用于未来的临床癌症治疗。Apt-Au @ MSL可能通过触发活性氧(ROS)的过量产生并调节多个信号串扰来诱导细胞凋亡。血液生化测试和H&E染色均表明这些材料在体内的急性毒性可忽略不计,并且具有良好的生物相容性。凭借其强大的功能,Apt-Au @ MSL可以用作基于靶标的抗癌材料,用于未来的临床癌症治疗。Apt-Au @ MSL可能通过触发活性氧(ROS)的过量产生并调节多个信号串扰来诱导细胞凋亡。血液生化测试和H&E染色均表明这些材料在体内的急性毒性可忽略不计,并且具有良好的生物相容性。凭借其强大的功能,Apt-Au @ MSL可以用作基于靶标的抗癌材料,用于未来的临床癌症治疗。

更新日期:2020-03-30
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