Co-delivery of retinoic acid and miRNA by functional Au nanoparticles for improved survival and CT imaging tracking of MSCs in pulmonary fibrosis therapy

IF 10.7 1区 医学 Q1 PHARMACOLOGY & PHARMACY
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Abstract

Mesenchymal stem cells (MSCs) have emerged as promising candidates for idiopathic pulmonary fibrosis (IPF) therapy. Increasing the MSC survival rate and deepening the understanding of the behavior of transplanted MSCs are of great significance for improving the efficacy of MSC-based IPF treatment. Therefore, dual-functional Au-based nanoparticles (Au@PEG@PEI@TAT NPs, AuPPT) were fabricated by sequential modification of cationic polymer polyetherimide (PEI), polyethylene glycol (PEG), and transactivator of transcription (TAT) penetration peptide on AuNPs, to co-deliver retinoic acid (RA) and microRNA (miRNA) for simultaneously enhancing MSC survive and real-time imaging tracking of MSCs during IPF treatment. AuPPT NPs, with good drug loading and cellular uptake abilities, could efficiently deliver miRNA and RA to protect MSCs from reactive oxygen species and reduce their expression of apoptosis executive protein Caspase 3, thus prolonging the survival time of MSC after transplantation. In the meantime, the intracellular accumulation of AuPPT NPs enhanced the computed tomography imaging contrast of transplanted MSCs, allowing them to be visually tracked in vivo. This study establishes an Au-based dual-functional platform for drug delivery and cell imaging tracking, which provides a new strategy for MSC-related IPF therapy.

Abstract Image

通过功能性金纳米颗粒联合递送维甲酸和 miRNA,提高间充质干细胞在肺纤维化治疗中的存活率并进行 CT 成像跟踪
间充质干细胞(MSCs)已成为治疗特发性肺纤维化(IPF)的有希望的候选细胞。提高间充质干细胞的存活率和加深对移植间充质干细胞行为的了解对于提高基于间充质干细胞的特发性肺纤维化治疗效果具有重要意义。因此,通过在AuNPs上依次修饰阳离子聚合物聚醚酰亚胺(PEI)、聚乙二醇(PEG)和转录激活因子(TAT)渗透肽,制备了双功能金基纳米颗粒(Au@PEG@PEI@TAT NPs,AuPPT),以共同递送维甲酸(RA)和microRNA(miRNA),从而同时提高间充质干细胞的存活率,并在IPF治疗过程中对间充质干细胞进行实时成像追踪。AuPPT NPs具有良好的载药能力和细胞摄取能力,能有效地递送miRNA和RA,保护间充质干细胞免受活性氧的损伤,并降低间充质干细胞凋亡执行蛋白Caspase 3的表达,从而延长间充质干细胞移植后的存活时间。同时,AuPPT NPs在细胞内的蓄积增强了移植间充质干细胞的计算机断层扫描成像对比度,从而可以在体内对其进行可视化追踪。这项研究建立了一个基于金的药物递送和细胞成像追踪双功能平台,为间叶干细胞相关的 IPF 治疗提供了一种新策略。
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来源期刊
Asian Journal of Pharmaceutical Sciences
Asian Journal of Pharmaceutical Sciences Pharmacology, Toxicology and Pharmaceutics-Pharmaceutical Science
CiteScore
18.30
自引率
2.90%
发文量
11
审稿时长
14 days
期刊介绍: The Asian Journal of Pharmaceutical Sciences (AJPS) serves as the official journal of the Asian Federation for Pharmaceutical Sciences (AFPS). Recognized by the Science Citation Index Expanded (SCIE), AJPS offers a platform for the reporting of advancements, production methodologies, technologies, initiatives, and the practical application of scientific knowledge in the field of pharmaceutics. The journal covers a wide range of topics including but not limited to controlled drug release systems, drug targeting, physical pharmacy, pharmacodynamics, pharmacokinetics, pharmacogenomics, biopharmaceutics, drug and prodrug design, pharmaceutical analysis, drug stability, quality control, pharmaceutical engineering, and material sciences.
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