期刊
PHARMACEUTICS
卷 12, 期 6, 页码 -出版社
MDPI
DOI: 10.3390/pharmaceutics12060555
关键词
gelatin-oleic conjugate; self-assembly; fattigation-platform NPs; biomimetic shear stress; cell dynamic environment; cellular uptake; paclitaxel; coumarin-6; inhibitory concentration
资金
- Korea Evaluation Institute of Industrial Technology (KEIT) - Ministry of Trade, Industry and Energy, Republic of Korea [20008413]
- Korea Evaluation Institute of Industrial Technology (KEIT) [20008413] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
Cellular properties and microenvironments, as well as the characteristics of nanoparticles (NPs), affect the cellular uptake and cytotoxic effects of drug-loaded NPs. Since there is fluid flow in the human blood system, fluid flow also affects the drug delivery efficiency of NPs. This study aimed to evaluate the cellular behaviors of drug-loaded soft NPs on A549 cancer cells under different levels of shear stress (0.5, 5, and 50 dynes/cm(2)) in the biomimetic microfluidic system. The soft self-assembled NPs were formed by the gelatin-oleic conjugate (GOC). The poorly water-soluble coumarin-6 or paclitaxel (PTX) were used as model markers for encapsulation within self-assembled NPs (C-GONs or PTX-GONs, respectively). The cellular uptake of C-GONs was found to be improved with shear-stress dependence. The inhibitory concentration (IC50) of PTX-GONs at 0.5, 5, and 50 dynes/cm(2)was 0.106 mu g/mL, 0.108 mu g/mL, and 0.091 mu g/mL, respectively, as compared to 0.138 mu g/mL in a static condition. The cell killing efficiency of PTX-GONs was increased in the highest shear stress of 50 dynes/cm(2)in the static condition, and other levels of shear stress in dynamic conditions.
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