多西他赛的自组装纳米胶束制剂作为一种潜在的乳腺癌化疗系统

Self-Assembled Nanomicellar Formulation of Docetaxel as a Potential Breast Cancer Chemotherapeutic System.

作者信息

Alshamrani Meshal, Ayon Navid J, Alsalhi Abdullah, Akinjole Omowumi

机构信息

Department of Pharmaceutics, College of Pharmacy, Jazan University, P.O. Box 114, Jazan 45142, Saudi Arabia.

Proteomics Center of Excellence, Chemistry of Life Processes Institute, Northwestern University, Evanston, IL 60208, USA.

出版信息

Life (Basel). 2022 Mar 27;12(4):485. doi: 10.3390/life12040485.

Abstract

Docetaxel (DTX) is classified as a class IV drug that exhibits poor aqueous solubility (6-7 µg/mL in water) and permeability (P-glycoprotein substrate). The main objective of this study was to construct, characterize, and evaluate docetaxel loaded nanomicellar formulation for oral delivery to enhance the absorption and bioavailability of DTX, as well as to circumvent P-gp efflux inhibition. Formulations were prepared with two polymeric surfactants, hydrogenated castor oil-40 (HCO-40) and D-α-Tocopherol polyethylene glycol 1000 succinate (VIT E TPGS) with solvent evaporation technique, and the resulting DTX nanomicellar formulations were characterized by proton nuclear magnetic resonance spectroscopy (1H NMR), Fourier Transform Infrared Spectroscopy (FT-IR), X-ray powder diffraction (XRD), and transmission electron microscopy (TEM). Proton NMR, FT-IR, and XRD data indicated that DTX was completely encapsulated within the hydrophobic core of the nanomicelles in its amorphous state. TEM data revealed a smooth spherical shape of the nanomicellar formulation. The optimized formulation (F-2) possessed a mean diameter of 13.42 nm, a zeta potential of -0.19 mV, with a 99.3% entrapment efficiency. Dilution stability study indicated that nanomicelles were stable up to 100-fold dilution with minimal change in size, poly dispersity index (PDI), and zeta potential. cytotoxicity study revealed higher anticancer activity of DTX nanomicelles at 5 µM compared to the native drug against breast cancer cell line (MCF-7) cells. The LC-MS data confirmed the chemical stability of DTX within the nanomicelles. drug release study demonstrated faster dissolution of DTX from the nanomicelles compared to the naked drug. Our experimental results exhibit that nanomicelles could be a drug delivery system of choice to encapsulate drugs with low aqueous solubility and permeability that can preserve the stability of the active constituents to provide anticancer activity.

摘要

多西他赛(DTX)被归类为IV类药物,其水溶性较差(在水中为6 - 7μg/mL)且具有渗透性(P-糖蛋白底物)。本研究的主要目的是构建、表征和评估用于口服给药的载多西他赛纳米胶束制剂,以提高DTX的吸收和生物利用度,并规避P-糖蛋白外排抑制。采用溶剂蒸发技术,用两种聚合物表面活性剂氢化蓖麻油-40(HCO-40)和D-α-生育酚聚乙二醇1000琥珀酸酯(维生素E TPGS)制备制剂,所得的DTX纳米胶束制剂通过质子核磁共振光谱(1H NMR)、傅里叶变换红外光谱(FT-IR)、X射线粉末衍射(XRD)和透射电子显微镜(TEM)进行表征。质子NMR、FT-IR和XRD数据表明DTX以无定形状态完全包裹在纳米胶束的疏水核心内。TEM数据显示纳米胶束制剂呈光滑的球形。优化后的制剂(F-2)平均直径为13.42nm,zeta电位为-0.19mV,包封率为99.3%。稀释稳定性研究表明,纳米胶束在稀释至100倍时仍保持稳定,粒径、多分散指数(PDI)和zeta电位变化最小。细胞毒性研究表明,与天然药物相比,5μM的DTX纳米胶束对乳腺癌细胞系(MCF-7)细胞具有更高的抗癌活性。LC-MS数据证实了DTX在纳米胶束内的化学稳定性。药物释放研究表明,与裸药相比,DTX从纳米胶束中的溶解速度更快。我们的实验结果表明,纳米胶束可能是一种理想的药物递送系统,可用于包裹水溶性和渗透性低的药物,同时保持活性成分的稳定性以提供抗癌活性。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/cff4/9024535/737f3494cf53/life-12-00485-g001.jpg

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