Microfluidic chip for synergic drugs assay in 3D breast cancer cell

IF 2.3 4区 工程技术 Q2 INSTRUMENTS & INSTRUMENTATION
Franciele Flores Vit, Yu Tzu Wu, Eric Fujiwara, Hernandes F. Carvalho, Lucimara Gaziola de la Torre
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引用次数: 0

Abstract

Some anticancer treatments may cause Multidrug Resistance (MDR). In these cases, cells pump the drug out of the intracellular environment, thereby preventing drug effects. Several strategies have been used to avoid MDR, including using two or more drugs at low concentrations to increase the sensitivity of cells to treatment. We present an effective, cheap, fast microfluidic alternative to test two drugs simultaneously using a reversible sealing and reusable device to determine the optimal concentration. We used the rugs doxorubicin (DOX) and paclitaxel (PXT) as proof of concept. The microdevice allows the testing of two drugs in real time. Furthermore, running two experiments in sextuplicates and control in the same microchip is possible. We used two combinations of drugs, varying the drug concentration (C1 = 0.010 mg.mL− 1 DOX and 0.002.mL− 1 mg PXT, C2 = 0.010 mg.mL− 1 DOX and 0.004 mg.mL− 1 PXT), and evaluated cell death over time. The intermediate drug concentrations were more efficient, reducing the time required to decrease the viability of breast tumor cells, MCF-7 (C1 = 180 and C2 = 120). In further analysis, the microdevice also allowed characterization of the effects of the drugs (antagonist, synergic, or additive). This microdevice is a reliable tool for estimating the different combinations of two drug concentrations in a single assay simply and quickly.

用于三维乳腺癌细胞协同药物检测的微流控芯片
某些抗癌治疗可能会导致多药耐药性(MDR)。在这种情况下,细胞会将药物泵出细胞内环境,从而阻止药物作用。有几种策略被用来避免 MDR,包括使用两种或两种以上低浓度药物来提高细胞对治疗的敏感性。我们提出了一种有效、廉价、快速的微流控替代方法,利用可逆密封和可重复使用的装置同时测试两种药物,以确定最佳浓度。我们使用多柔比星(DOX)和紫杉醇(PXT)作为概念验证。该微型装置可实时测试两种药物。此外,还可以在同一微芯片中进行六次重复实验和对照实验。我们使用了两种药物组合,改变药物浓度(C1 = 0.010 mg.mL- 1 DOX 和 0.002.mL- 1 mg PXT,C2 = 0.010 mg.mL- 1 DOX 和 0.004 mg.mL- 1 PXT),并评估了细胞死亡时间。中间药物浓度更有效,减少了降低乳腺肿瘤细胞 MCF-7 活力所需的时间(C1 = 180 和 C2 = 120)。在进一步分析中,该微型装置还能确定药物作用的特征(拮抗、协同或相加)。这种微型装置是一种可靠的工具,可在一次检测中简单快速地估算两种药物浓度的不同组合。
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来源期刊
Microfluidics and Nanofluidics
Microfluidics and Nanofluidics 工程技术-纳米科技
CiteScore
4.80
自引率
3.60%
发文量
97
审稿时长
2 months
期刊介绍: Microfluidics and Nanofluidics is an international peer-reviewed journal that aims to publish papers in all aspects of microfluidics, nanofluidics and lab-on-a-chip science and technology. The objectives of the journal are to (1) provide an overview of the current state of the research and development in microfluidics, nanofluidics and lab-on-a-chip devices, (2) improve the fundamental understanding of microfluidic and nanofluidic phenomena, and (3) discuss applications of microfluidics, nanofluidics and lab-on-a-chip devices. Topics covered in this journal include: 1.000 Fundamental principles of micro- and nanoscale phenomena like, flow, mass transport and reactions 3.000 Theoretical models and numerical simulation with experimental and/or analytical proof 4.000 Novel measurement & characterization technologies 5.000 Devices (actuators and sensors) 6.000 New unit-operations for dedicated microfluidic platforms 7.000 Lab-on-a-Chip applications 8.000 Microfabrication technologies and materials Please note, Microfluidics and Nanofluidics does not publish manuscripts studying pure microscale heat transfer since there are many journals that cover this field of research (Journal of Heat Transfer, Journal of Heat and Mass Transfer, Journal of Heat and Fluid Flow, etc.).
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