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壳聚糖生物聚合物功能化氧化石墨烯和二氧化钛与七叶皂苷金属纳米复合材料对结肠癌的抗癌潜力。

Chitosan biopolymer functionalized with graphene oxide and titanium dioxide with Escin metallic nanocomposites for anticancer potential against colon cancer.

机构信息

Department of Pharmacology and Toxicology, Faculty of Medicine, Umm Al-Qura University, Makkah, Saudi Arabia.

Department of Pharmacology and Toxicology, Faculty of Medicine, Umm Al-Qura University, Makkah, Saudi Arabia.

出版信息

Int J Biol Macromol. 2023 Dec 31;253(Pt 7):127334. doi: 10.1016/j.ijbiomac.2023.127334. Epub 2023 Oct 9.

Abstract

Our study produced GO-TiO-chitosan-escin nanocomposites (GTCEnc), characterized them using physical and biological methods, and evaluated their potential as cancer treatment candidates. Standard protocols were used to produce GTCEnc. Nanocomposites are created using XRD, FTIR, UV-Vis, and PL spectroscopy analysis. The morphology and ultrastructure of nanocomposites were investigated using SEM and TEM. Nanocomposites containing TiO, GO, chitosan, and escin nanostructures were characterized using diffraction, microscopy, and spectroscopy; the antimicrobial activity of GTCEnc was investigated. Various methods were used to test the anticancer activity of GTCEnc against COLO 205 cell lines, including MTT, EtBr/AO, DAPI, JC-1, Annexin-V/FITC, cell cycle analysis, and activation of pro-apoptotic markers, such as caspase-3, -8, and -9. The nanocomposites were cytotoxic to COLO 205 cells, with an IC of 22.68 μg/mL, but not to 293T cells. In cells treated with nanomaterials, cytotoxicity, nuclear damage, apoptosis induction, and free radical production were significantly increased. Our finding suggests that GTCEnc has potent anticancer and antibacterial activity in vitro because of its unique nanocomposite properties and antibacterial and anticancer activity in vitro. Additional research is required to understand the clinical efficacy of these nanocomposites.

摘要

我们制备了 GO-TiO-chitosan-escin 纳米复合材料(GTCEnc),并用物理和生物学方法对其进行了表征,并评估了它们作为癌症治疗候选物的潜力。使用标准方案制备 GTCEnc。使用 XRD、FTIR、UV-Vis 和 PL 光谱分析来制备纳米复合材料。使用 SEM 和 TEM 研究了纳米复合材料的形貌和超微结构。使用衍射、显微镜和光谱学对含有 TiO、GO、壳聚糖和秦皮素纳米结构的纳米复合材料进行了表征;研究了 GTCEnc 的抗菌活性。使用 MTT、EtBr/AO、DAPI、JC-1、Annexin-V/FITC、细胞周期分析和促凋亡标志物(如 caspase-3、-8 和 -9)的激活等多种方法测试了 GTCEnc 对 COLO 205 细胞系的抗癌活性。纳米复合材料对 COLO 205 细胞具有细胞毒性,IC 为 22.68 μg/mL,但对 293T 细胞没有毒性。在用纳米材料处理的细胞中,细胞毒性、核损伤、细胞凋亡诱导和自由基生成显著增加。我们的研究结果表明,由于其独特的纳米复合材料特性以及体外的抗菌和抗癌活性,GTCEnc 具有潜在的体外抗癌和抗菌活性。需要进一步的研究来了解这些纳米复合材料的临床疗效。

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