Rapid and precise tumor cell separation using the combination of size-dependent inertial and size-independent magnetic methods

Lab on a Chip ◽  
2021 ◽  
Author(s):  
Di Huang ◽  
Nan Xiang

A three-stage i-Mag device combines the passive inertial microfluidics and the active magnetophoresis method for rapid, precise, and tumor antigen-independent separation of rare tumor cells from blood.

Author(s):  
Jiashu Sun

We report on the development of a curved microfluidic channel that allows rapid and continuous size-based rare tumor cell separation from blood in a label-free manner by exploiting the hydrodynamic effects. The separated tumor cells are trapped and enriched on an integrated polycarbonate filter glued on top of the outlet reservoir of microchannels. CK19 mRNA of MCF-7 cells are detected by loop-mediated isothermal amplification (LAMP).


Cells ◽  
2020 ◽  
Vol 9 (4) ◽  
pp. 888
Author(s):  
Taiji Kuwata ◽  
Kazue Yoneda ◽  
Masataka Mori ◽  
Masatoshi Kanayama ◽  
Koji Kuroda ◽  
...  

Circulating tumor cell (CTC) is a potentially useful surrogate of micro-metastasis, but detection of rare tumor cells contaminated in a vast majority of normal hematologic cells remains technical challenges. To achieve effective detection of a variety of CTCs, we have developed a novel microfluidic system (CTC-chip) in which any antibody to capture CTCs is easily conjugated. In previous studies, we employed an antibody (clone E-1) against podoplanin that was strongly expressed on mesothelioma cells. The CTC-chip coated by the E-1 antibody (E1-chip) provided a modest sensitivity in detection of CTCs in malignant pleural mesothelioma (MPM). Here, to achieve a higher sensitivity, we employed a novel anti-podoplanin antibody (clone NZ-1.2). In an experimental model, MPM cells with high podoplanin expression were effectively captured with the CTC-chip coated by the NZ-1.2 antibody (NZ1.2-chip). Next, we evaluated CTCs in the peripheral blood sampled from 22 MPM patients using the NZ1.2-chip and the E1-chip. One or more CTCs were detected in 15 patients (68.2%) with the NZ1.2-chip, whereas only in 10 patients (45.5%) with the E1-chip. Of noted, in most (92.3%, 12/13) patients with epithelioid MPM subtype, CTCs were positive with the NZ1.2-chip. The CTC-count detected with the NZ1.2-chip was significantly higher than that with the E1-chip (p = 0.034). The clinical implications of CTCs detected with the NZ1.2-chip will be examined in a future study.


Lab on a Chip ◽  
2021 ◽  
Author(s):  
Kaifeng Zhao ◽  
Yaoping Liu ◽  
Hua Wang ◽  
Yanling Song ◽  
Xiao-Feng Chen ◽  
...  

Rapid, efficient, and selective separation of tumor cells from complex body fluids is urgently needed for clinical application of tumor-cell-based liquid biopsy. Herein, a size-selective affinity filtration system, named Selective,...


Lab on a Chip ◽  
2018 ◽  
Vol 18 (22) ◽  
pp. 3436-3445 ◽  
Author(s):  
Fei Tian ◽  
Lili Cai ◽  
Jianqiao Chang ◽  
Shanshan Li ◽  
Chao Liu ◽  
...  

Label-free, size-dependent, and high-throughput isolation of rare tumor cells from untreated whole blood is enabled by interfacial viscoelastic microfluidics.


Lab on a Chip ◽  
2019 ◽  
Vol 19 (10) ◽  
pp. 1860-1876 ◽  
Author(s):  
Wujun Zhao ◽  
Yang Liu ◽  
Brittany D. Jenkins ◽  
Rui Cheng ◽  
Bryana N. Harris ◽  
...  

Integrated ferrohydrodynamic cell separation (iFCS) explores cell magnetization in biocompatible ferrofluids and enriches CTCs in an antigen-independent and cell size variation-inclusive manner.


Lab on a Chip ◽  
2019 ◽  
Vol 19 (1) ◽  
pp. 68-78 ◽  
Author(s):  
Yaoping Liu ◽  
Tingyu Li ◽  
Mingxin Xu ◽  
Wei Zhang ◽  
Yan Xiong ◽  
...  

The developed high-throughput liquid biopsy platform for rare tumor cell separation from body fluids has shown enormous promise in cancer detection and prognosis monitoring.


Lab on a Chip ◽  
2021 ◽  
Author(s):  
Yang Liu ◽  
Wujun Zhao ◽  
Rui Cheng ◽  
Bryana N. Harris ◽  
Jonathan R. Murrow ◽  
...  

We present the fundamental theory and experimental validations of an integrated ferrohydrodynamic cell separation (iFCS) method that can isolate circulating tumor cells with a high recovery rate.


2013 ◽  
Vol 7 (1) ◽  
pp. 011802 ◽  
Author(s):  
Jiashu Sun ◽  
Chao Liu ◽  
Mengmeng Li ◽  
Jidong Wang ◽  
Yunlei Xianyu ◽  
...  

Sign in / Sign up

Export Citation Format

Share Document