Department of Anorectal, Xi'an Central Hospital, Xi'an, Shaanxi Province, P.R.China.
Medical Clinical Laboratory, Rongcheng People's Hospital, Weihai, Shandong Province, P.R.China.
J Biomater Sci Polym Ed. 2021 Oct;32(14):1835-1848. doi: 10.1080/09205063.2021.1941556. Epub 2021 Jul 9.
In biomaterials and drug delivery, the development of polymeric therapies capable of the synchronized release of several therapeutic agents remains an important challenge. In this article, we describe the development of polymeric nanoparticles (PNPs) with precise molar ratios of Curcumin (CUR) and Methotrexate (MEX). The highly symmetric synthetic approach allows for the development of novel NPs-based combination therapeutic strategies for colorectal cancer. The fabricated CUR/MEX@PNPs were confirmed by transmission microscopy (TEM) and the size and polydispersity index were assessed through the dynamic light scattering (DLS). CUR and MEX were released slowly from the drug delivery without any burst impact. Furthermore, CUR/MEX@PNPs exhibited dose-responsive cytotoxic effects in CL40 and SW1417 cells, with a greater cell death ratio than that of free drugs. The drugs-loaded polymeric nanomaterials were more easily taken up by cancer cells , according to the cellular uptake analysis. The apoptotic features were confirmed by various fluorescence staining assay. The results of the fluorescent assay reveal that the nanomaterials remarkably induce apoptosis in colorectal cancer cells. Further, the apoptosis cell death mechanism was displayed that these nanomaterials significantly induce apoptosis in the targeted cancer cells. Overall, the current investigation confirmed that CUR/MEX@PNPs could be used to successfully combat colorectal cancers in the immediate future.HighlightsWe have developed the Curcumin (CUR) and Methotrexate (MEX) encapsulated polymeric nanoparticles (CUR/MEX@PNPs).CUR/MEX@PNPs confirmed by the various analytical methods.CUR/MEX@PNPs enhanced the in vitro proliferation against the colorectal cancer cells.Biochemical analysis results reveals that CUR/MEX@PNPs induce apoptosis.The apoptosis was confirmed by Annexin-V-FITC and PI for flow cytometry.
在生物材料和药物输送领域,开发能够同步释放多种治疗剂的聚合物疗法仍然是一个重要的挑战。在本文中,我们描述了具有姜黄素(CUR)和甲氨蝶呤(MEX)精确摩尔比的聚合物纳米颗粒(PNP)的开发。高度对称的合成方法允许开发用于结直肠癌的新型基于 NP 的组合治疗策略。通过透射显微镜(TEM)证实了 CUR/MEX@PNP 的存在,并通过动态光散射(DLS)评估了其尺寸和多分散指数。CUR 和 MEX 从药物输送中缓慢释放,没有任何爆发影响。此外,CUR/MEX@PNP 在 CL40 和 SW1417 细胞中表现出剂量反应性细胞毒性作用,其细胞死亡比例高于游离药物。根据细胞摄取分析,载药聚合物纳米材料更容易被癌细胞摄取。通过各种荧光染色测定证实了凋亡特征。荧光测定的结果表明,纳米材料可显著诱导结直肠癌细胞凋亡。此外,还显示了凋亡细胞死亡机制,这些纳米材料可显著诱导靶向癌细胞凋亡。总体而言,目前的研究证实,CUR/MEX@PNP 可在不久的将来成功用于治疗结直肠癌。
要点
我们开发了姜黄素(CUR)和甲氨蝶呤(MEX)封装的聚合物纳米颗粒(CUR/MEX@PNP)。
通过各种分析方法证实了 CUR/MEX@PNP 的存在。
CUR/MEX@PNP 增强了对结直肠癌细胞的体外增殖。
生化分析结果表明 CUR/MEX@PNP 诱导细胞凋亡。
通过 Annexin-V-FITC 和 PI 进行流式细胞术证实了凋亡。