Green synthesis and anticancer activity of titanium dioxide nanoparticles using the endophytic fungus Aspergillus sp.

IF 1.7 4区 综合性期刊 Q2 MULTIDISCIPLINARY SCIENCES
Hani A. Alhadrami , Hossam M. Hassan , Albaraa H. Alhadrami , Mostafa E. Rateb , Ahmed A. Hamed
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Abstract

Titanium dioxide nanoparticles (TiO2 NPs) have attracted significant attention for their unique physicochemical features and various applications. This study demonstrated the biosynthesis of TiO2 NPs using Aspergillus fungal extract that served as a green and eco-friendly reducing and stabilizing agent. The biosynthesized nanoparticles were analyzed using SEM and TEM to determine their morphology, size, and distribution, FTIR to determine functional groups, and Zeta potential to assess their surface charge and stability. An extensive review of the Protein Data Bank (PDB) and literature indicated that TiO2 could target various cancer-relevant matrix metalloproteinases. In vitro screening indicated promising anticancer effects against the MCF7 breast cancer cell line. To investigate the possible mode of action of TiO2 NPs as an anticancer agent, human matrix metalloproteinase-3 was highlighted as a protein inhibited by metallic ions like PtCl2. Therefore, we investigated whether TiO2 could similarly interact with the active site of MMP-3. We hypothesized that TiO2 could interact with the MMP-3 active site and replace PtCl2 with modelled TiO2 in its co-crystallized binding site. A 100 ns-long MDS, binding free energy (ΔGBinding) of PtCl2 and TiO2 within MMP-3 binding site indicated that TiO2's enhanced binding affinity and stability, as evidenced by a ΔGBinding of −7.23 kcal/mol and average RMSD of 0.89 Å, compared to PtCl2's lower affinity. In conclusion, endophytic fungi can be used efficiently in the biosynthesis of nanoparticles. Our study indicated TiO2 NPs have a potential anticancer effect, suggesting TiO2 binds to MMP3, potentially offering comparable inhibitory effects on the enzyme's activity.
利用内生真菌曲霉绿色合成二氧化钛纳米颗粒及其抗癌活性。
二氧化钛纳米颗粒(TiO2 NPs)因其独特的物理化学特性和广泛的应用而备受关注。本研究展示了利用曲霉真菌提取物作为绿色环保的还原剂和稳定剂,生物合成TiO2 NPs。利用扫描电镜(SEM)和透射电镜(TEM)分析生物合成的纳米颗粒的形貌、大小和分布,利用红外光谱(FTIR)分析其官能团,利用Zeta电位评估其表面电荷和稳定性。通过对蛋白质数据库(PDB)和文献的广泛回顾,我们发现TiO2可以靶向多种与癌症相关的基质金属蛋白酶。体外筛选显示对MCF7乳腺癌细胞系有良好的抗癌作用。为了研究TiO2 NPs作为抗癌剂的可能作用模式,我们重点研究了PtCl2等金属离子对人基质金属蛋白酶-3的抑制作用。因此,我们研究了TiO2是否可以类似地与MMP-3的活性位点相互作用。我们假设TiO2可以与MMP-3活性位点相互作用,并用模拟的TiO2取代PtCl2的共晶结合位点。PtCl2和TiO2在MMP-3结合位点的结合自由能(ΔGBinding)为100 ns长,表明TiO2的结合亲和力和稳定性增强,其结合自由能ΔGBinding为−7.23 kcal/mol,平均RMSD为0.89 Å,而PtCl2的亲和力较低。综上所述,内生真菌可以有效地用于纳米颗粒的生物合成。我们的研究表明TiO2 NPs具有潜在的抗癌作用,表明TiO2与MMP3结合,可能对酶的活性具有类似的抑制作用。
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来源期刊
自引率
5.90%
发文量
130
审稿时长
16 weeks
期刊介绍: Journal of Radiation Research and Applied Sciences provides a high quality medium for the publication of substantial, original and scientific and technological papers on the development and applications of nuclear, radiation and isotopes in biology, medicine, drugs, biochemistry, microbiology, agriculture, entomology, food technology, chemistry, physics, solid states, engineering, environmental and applied sciences.
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