Nano Bio Electronic Devices Lab, Cancer Electronics Research Group, School of Electrical and Computer Engineering, College of Engineering, University of Tehran, Tehran, Iran.
Nano Bio Electronic Devices Lab, Cancer Electronics Research Group, School of Electrical and Computer Engineering, College of Engineering, University of Tehran, Tehran, Iran; Pediatric Growth and Development Research Center, Institute of Endocrinology and Metabolism, Iran University of Medical Sciences, Tehran, Iran.
Biomater Adv. 2023 Aug;151:213476. doi: 10.1016/j.bioadv.2023.213476. Epub 2023 May 31.
Cancer is a cellular-based disease, so cytological diagnosis is one of the main challenges for its early detection. An extensive number of diagnostic methods have been developed to separate cancerous cells from normal ones, in electrical methods attract progressive attention. Identifying and specifying different cells requires understanding their dielectric and electric properties. This study evaluated MDA-MB-231, HUVEC, and MCF-10A cell lines, WBCs isolated from blood, and patient-derived cell samples with a cylindrical body with two transparent FTO (fluorine-doped tin oxide) plate electrodes. Cell mobility rates were recorded in response to these stimuli. It was observed that cancer cells demonstrate drastic changes in their motility in the presence and absence of an electric field (DC/AC). Also, solution viscosity's effect on cancer cells' capturing efficacy was evaluated. This research's main distinguished specification uses a non-microfluidic platform to detect and pathologically evaluate cytological samples with a simple, cheap, and repeatable platform. The capturing procedure was carried out on a cytological slide without any complicated electrode patterning with the ability of cytological staining. Moreover, this platform successfully designed and experimented with the invasion assay (the ability of captured cancer cells to invade normal cells).
癌症是一种基于细胞的疾病,因此细胞学诊断是早期发现癌症的主要挑战之一。已经开发出大量的诊断方法来将癌细胞与正常细胞分离,其中电学方法引起了越来越多的关注。识别和指定不同的细胞需要了解它们的介电和电学特性。本研究评估了 MDA-MB-231、HUVEC 和 MCF-10A 细胞系、从血液中分离出的白细胞(WBC)以及患者来源的细胞样本,这些细胞样本使用具有两个透明 FTO(掺氟氧化锡)板电极的圆柱形主体。记录了这些刺激下细胞的迁移率。结果表明,在存在和不存在电场(直流/交流)的情况下,癌细胞的迁移率发生了明显变化。此外,还评估了溶液粘度对癌细胞捕获效果的影响。本研究的主要特点是使用非微流控平台来检测和病理评估细胞学样本,该平台具有简单、廉价和可重复的特点。捕获过程在没有任何复杂电极图案的细胞学载玻片上进行,具有细胞学染色的能力。此外,该平台还成功设计并进行了侵袭实验(捕获的癌细胞侵袭正常细胞的能力)。