1
|
Mane S, Behera A, Hemadri V, Bhand S, Tripathi S. Micropump integrated white blood cell separation platform for detection of chronic granulomatous disease. Mikrochim Acta 2024; 191:295. [PMID: 38700804 DOI: 10.1007/s00604-024-06372-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2024] [Accepted: 04/18/2024] [Indexed: 05/05/2024]
Abstract
White blood cells (WBCs) are robust defenders during antigenic challenges and prime immune cell functioning indicators. High-purity WBC separation is vital for various clinical assays and disease diagnosis. Red blood cells (RBCs) are a major hindrance in WBC separation, constituting 1000 times the WBC population. The study showcases a low-cost micropump integrated microfluidic platform to provide highly purified WBCs for point-of-care testing. An integrated user-friendly microfluidic platform was designed to separate WBCs from finger-prick blood (⁓5 μL), employing an inertial focusing technique. We achieved an efficient WBC separation with 86% WBC purity and 99.99% RBC removal rate in less than 1 min. In addition, the microdevice allows lab-on-chip colorimetric evaluation of chronic granulomatous disease (CGD), a rare genetic disorder affecting globally. The assay duration, straight from separation to disease detection, requires only 20 min. Hence, the proposed microfluidic platform can further be implemented to streamline various clinical procedures involving WBCs in healthcare industries.
Collapse
Affiliation(s)
- Sanjay Mane
- Department of Mechanical Engineering, BITS-Pilani, K K Birla Goa Campus, Sankval, Goa, 403726, India
| | - Abhishek Behera
- Department of Mechanical Engineering, BITS-Pilani, K K Birla Goa Campus, Sankval, Goa, 403726, India
| | - Vadiraj Hemadri
- Department of Mechanical Engineering, BITS-Pilani, K K Birla Goa Campus, Sankval, Goa, 403726, India
| | - Sunil Bhand
- Department of Chemistry, BITS-Pilani, K K Birla Goa Campus, Sankval, Goa, 403726, India
| | - Siddhartha Tripathi
- Department of Mechanical Engineering, BITS-Pilani, K K Birla Goa Campus, Sankval, Goa, 403726, India.
| |
Collapse
|
2
|
Hayashi A, Hemmi R, Saito Y, Utoh R, Taniguchi T, Yamada M. High-Density Microporous Drainage-Integrating Sheath Flow Generator for Streamlining Microfluidic Cell Sorting Systems. Anal Chem 2024; 96:6764-6773. [PMID: 38619911 DOI: 10.1021/acs.analchem.4c00485] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/17/2024]
Abstract
Tremendous efforts have been made to develop practical and efficient microfluidic cell and particle sorting systems; however, there are technological limitations in terms of system complexity and low operability. Here, we propose a sheath flow generator that can dramatically simplify operational procedures and enhance the usability of microfluidic cell sorters. The device utilizes an embedded polydimethylsiloxane (PDMS) sponge with interconnected micropores, which is in direct contact with microchannels and seamlessly integrated into the microfluidic platform. The high-density micropores on the sponge surface facilitated fluid drainage, and the drained fluid was used as the sheath flow for downstream cell sorting processes. To fabricate the integrated device, a new process for sponge-embedded substrates was developed through the accumulation, incorporation, and dissolution of PMMA microparticles as sacrificial porogens. The effects of the microchannel geometry and flow velocity on the sheath flow generation were investigated. Furthermore, an asymmetric lattice-shaped microchannel network for cell/particle sorting was connected to the sheath flow generator in series, and the sorting performances of model particles, blood cells, and spiked tumor cells were investigated. The sheath flow generation technique developed in this study is expected to streamline conventional microfluidic cell-sorting systems as it dramatically improves versatility and operability.
Collapse
Affiliation(s)
- Ayumi Hayashi
- Department of Applied Chemistry and Biotechnology, Graduate School of Engineering, Chiba University, 1-33 Yayoi-cho, Inage-ku, Chiba 263-8522, Japan
| | - Runa Hemmi
- Department of Applied Chemistry and Biotechnology, Graduate School of Engineering, Chiba University, 1-33 Yayoi-cho, Inage-ku, Chiba 263-8522, Japan
| | - Yuhei Saito
- Department of Applied Chemistry and Biotechnology, Graduate School of Engineering, Chiba University, 1-33 Yayoi-cho, Inage-ku, Chiba 263-8522, Japan
| | - Rie Utoh
- Department of Applied Chemistry and Biotechnology, Graduate School of Engineering, Chiba University, 1-33 Yayoi-cho, Inage-ku, Chiba 263-8522, Japan
| | - Tatsuo Taniguchi
- Department of Applied Chemistry and Biotechnology, Graduate School of Engineering, Chiba University, 1-33 Yayoi-cho, Inage-ku, Chiba 263-8522, Japan
| | - Masumi Yamada
- Department of Applied Chemistry and Biotechnology, Graduate School of Engineering, Chiba University, 1-33 Yayoi-cho, Inage-ku, Chiba 263-8522, Japan
| |
Collapse
|
3
|
Chavez-Pineda OG, Rodriguez-Moncayo R, Gonzalez-Suarez AM, Guevara-Pantoja PE, Maravillas-Montero JL, Garcia-Cordero JL. Portable platform for leukocyte extraction from blood using sheath-free microfluidic DLD. Lab Chip 2024; 24:2575-2589. [PMID: 38646820 DOI: 10.1039/d4lc00132j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/23/2024]
Abstract
Leukocyte count is routinely performed for diagnostic purposes and is rapidly emerging as a significant biomarker for a wide array of diseases. Additionally, leukocytes have demonstrated considerable promise in novel cell-based immunotherapies. However, the direct retrieval of leukocytes from whole blood is a significant challenge due to their low abundance compared to erythrocytes. Here, we introduce a microfluidic-based platform that isolates and recovers leukocytes from diluted whole blood in a single step. Our platform utilizes a novel, sheathless method to initially sediment and focus blood cells into a dense stream while flowing through a tubing before entering the microfluidic device. A hexagonal-shaped structure, patterned at the device's inlet, directs all the blood cells against the channel's outer walls. The focused cells are then separated based on their size using the deterministic lateral displacement (DLD) microfluidic technique. We evaluated various parameters that could influence leukocyte separation, including different focusing structures (assessed both computationally and experimentally), the orientation of the tubing-chip interface, the effects of blood sample hematocrit (dilution), and flow rate. Our device demonstrated the ability to isolate leukocytes from diluted blood with a separation efficiency of 100%, a recovery rate of 76%, and a purity of 80%, while maintaining a cell viability of 98%. The device operates for over 30 min at a flow rate of 2 μL min-1. Furthermore, we developed a handheld pressure controller to drive fluid flow, enhancing the operability of our platform outside of central laboratories and enabling near-patient testing. Our platform can be integrated with downstream cell-based assays and analytical methods that require high leukocyte purity (80%), ranging from cell counting to diagnostics and cell culture applications.
Collapse
Affiliation(s)
- Oriana G Chavez-Pineda
- Laboratory of Microtechnologies Applied to Biomedicine (LMAB), Centro de Investigación y de Estudios Avanzados (Cinvestav), Monterrey, NL, Mexico
| | - Roberto Rodriguez-Moncayo
- Laboratory of Microtechnologies Applied to Biomedicine (LMAB), Centro de Investigación y de Estudios Avanzados (Cinvestav), Monterrey, NL, Mexico
| | - Alan M Gonzalez-Suarez
- Laboratory of Microtechnologies Applied to Biomedicine (LMAB), Centro de Investigación y de Estudios Avanzados (Cinvestav), Monterrey, NL, Mexico
| | - Pablo E Guevara-Pantoja
- Laboratory of Microtechnologies Applied to Biomedicine (LMAB), Centro de Investigación y de Estudios Avanzados (Cinvestav), Monterrey, NL, Mexico
| | - Jose L Maravillas-Montero
- Red de Apoyo a la Investigación, Universidad Nacional Autónoma de México e Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán, Mexico City14080, Mexico
| | - Jose L Garcia-Cordero
- Laboratory of Microtechnologies Applied to Biomedicine (LMAB), Centro de Investigación y de Estudios Avanzados (Cinvestav), Monterrey, NL, Mexico
- Institute of Human Biology (IHB), Roche Pharma Research and Early Development, Roche Innovation Center Basel, Basel 4058, Switzerland.
| |
Collapse
|
4
|
Bouloorchi Tabalvandani M, Saeidpour Z, Habibi Z, Javadizadeh S, Firoozabadi SA, Badieirostami M. Microfluidics as an emerging paradigm for assisted reproductive technology: A sperm separation perspective. Biomed Microdevices 2024; 26:23. [PMID: 38652182 DOI: 10.1007/s10544-024-00705-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/08/2024] [Indexed: 04/25/2024]
Abstract
Millions of people are subject to infertility worldwide and one in every six people, regardless of gender, experiences infertility at some period in their life, according to the World Health Organization. Assisted reproductive technologies are defined as a set of procedures that can address the infertility issue among couples, culminating in the alleviation of the condition. However, the costly conventional procedures of assisted reproduction and the inherent vagaries of the processes involved represent a setback for its successful implementation. Microfluidics, an emerging tool for processing low-volume samples, have recently started to play a role in infertility diagnosis and treatment. Given its host of benefits, including manipulating cells at the microscale, repeatability, automation, and superior biocompatibility, microfluidics have been adopted for various procedures in assisted reproduction, ranging from sperm sorting and analysis to more advanced processes such as IVF-on-a-chip. In this review, we try to adopt a more holistic approach and cover different uses of microfluidics for a variety of applications, specifically aimed at sperm separation and analysis. We present various sperm separation microfluidic techniques, categorized as natural and non-natural methods. A few of the recent developments in on-chip fertilization are also discussed.
Collapse
Affiliation(s)
| | - Zahra Saeidpour
- MEMS Lab, School of Electrical and Computer Engineering, College of Engineering, University of Tehran, Tehran, 1439957131, Iran
| | - Zahra Habibi
- MEMS Lab, School of Electrical and Computer Engineering, College of Engineering, University of Tehran, Tehran, 1439957131, Iran
| | - Saeed Javadizadeh
- MEMS Lab, School of Electrical and Computer Engineering, College of Engineering, University of Tehran, Tehran, 1439957131, Iran
| | - Seyed Ahmadreza Firoozabadi
- MEMS Lab, School of Electrical and Computer Engineering, College of Engineering, University of Tehran, Tehran, 1439957131, Iran
| | - Majid Badieirostami
- MEMS Lab, School of Electrical and Computer Engineering, College of Engineering, University of Tehran, Tehran, 1439957131, Iran.
| |
Collapse
|
5
|
Ebrahimi S, Tahmasebipour M. Numerical Study of a Centrifugal Platform for the Inertial Separation of Circulating Tumor Cells Using Contraction-Expansion Array Microchannels. Arch Razi Inst 2022; 77:647-660. [PMID: 36284940 PMCID: PMC9548281 DOI: 10.22092/ari.2022.357477.2046] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Received: 01/03/2022] [Accepted: 01/26/2022] [Indexed: 06/15/2023]
Abstract
Label-free inertial separation of the circulating tumor cells (CTCs) has attracted significant attention recently. The present study proposed a centrifugal platform for the inertial separation of the CTCs from the white blood cells. Particle trajectories of the contraction-expansion array (CEA) microchannels were analyzed by the finite element method. Four expansion geometries (i.e., circular, rectangular, trapezoidal, and triangular) were compared to explore their differences in separation possibilities. Different operational and geometrical parameters were investigated to achieve maximum separation efficiency. Results indicated that the trapezoidal CEA microchannel with ten expansions and a 100 µm channel depth had the best separation performance at an angular velocity of 100 rad/s. Reynolds number of 47 was set as the optimum value to apply minimum shear stress on the CTCs leading to 100% efficiency and 95% purity. Furthermore, the proposed system was simulated for whole blood by considering the red blood cells.
Collapse
Affiliation(s)
- Sh Ebrahimi
- Faculty of New Sciences and Technologies, University of Tehran, Tehran, 14395 -1561, Iran
- Micro/Nanofabrication Technologies Lab, Faculty of New Sciences and Technologies, University of Tehran, Tehran, 14395 -1561, Iran
| | - M Tahmasebipour
- Faculty of New Sciences and Technologies, University of Tehran, Tehran, 14395 -1561, Iran
- Micro/Nanofabrication Technologies Lab, Faculty of New Sciences and Technologies, University of Tehran, Tehran, 14395 -1561, Iran
| |
Collapse
|
6
|
Kozminsky M, Scheideler OJ, Li B, Liu NK, Sohn LL. Multiplexed DNA-Directed Patterning of Antibodies for Applications in Cell Subpopulation Analysis. ACS Appl Mater Interfaces 2021; 13:46421-46430. [PMID: 34546726 PMCID: PMC8817232 DOI: 10.1021/acsami.1c15047] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Antibodies provide the functional biospecificity that has enabled the development of sensors, diagnostic tools, and assays in both laboratory and clinical settings. However, as multimarker screening becomes increasingly necessary due to the heterogeneity and complexity of human pathology, new methods must be developed that are capable of coordinating the precise assembly of multiple, distinct antibodies. To address this technological challenge, we engineered a bottom-up, high-throughput method in which DNA patterns, comprising unique 20-base pair oligonucleotides, are patterned onto a substrate using photolithography. These microfabricated surface patterns are programmed to hybridize with, and instruct the multiplexed assembly of, antibodies conjugated with the complementary DNA strands. We demonstrate that this simple, yet robust, approach preserves the antibody-binding functionality in two common applications: antibody-based cell capture and label-free surface marker screening. Using a simple proof-of-concept capture device, we achieved high purity separation of a breast cancer cell line, MCF-7, from a blood cell line, Jurkat, with capture purities of 77.4% and 96.6% when using antibodies specific for the respective cell types. We also show that antigen-antibody interactions slow cell trajectories in flow in the next-generation microfluidic node-pore sensing (NPS) device, enabling the differentiation of MCF-7 and Jurkat cells based on EpCAM surface-marker expression. Finally, we use a next-generation NPS device patterned with antibodies against E-cadherin, N-cadherin, and β-integrin-three markers that are associated with epithelial-mesenchymal transitions-to perform label-free surface marker screening of MCF10A, MCF-7, and Hs 578T breast epithelial cells. Our high-throughput, highly versatile technique enables rapid development of customized, antibody-based assays across a host of diverse diseases and research thrusts.
Collapse
Affiliation(s)
- Molly Kozminsky
- California Institute of Quantitative Biosciences, University of California, Berkeley, 174 Stanley Hall, Berkeley, California 94720, United States
| | - Olivia J Scheideler
- The UC Berkeley-UC San Francisco Graduate Program in Bioengineering, University of California, Berkeley, 306 Stanley Hall, Berkeley, California 94720, United States
| | - Brian Li
- The UC Berkeley-UC San Francisco Graduate Program in Bioengineering, University of California, Berkeley, 306 Stanley Hall, Berkeley, California 94720, United States
| | - Nathaniel K Liu
- Department of Mechanical Engineering, University of California, Berkeley, 5118 Etcheverry Hall, Berkeley, California 94720, United States
| | - Lydia L Sohn
- California Institute of Quantitative Biosciences, University of California, Berkeley, 174 Stanley Hall, Berkeley, California 94720, United States
- The UC Berkeley-UC San Francisco Graduate Program in Bioengineering, University of California, Berkeley, 306 Stanley Hall, Berkeley, California 94720, United States
- Department of Mechanical Engineering, University of California, Berkeley, 5118 Etcheverry Hall, Berkeley, California 94720, United States
| |
Collapse
|
7
|
Toppi A, Busk LL, Hu H, Dogan AA, Jönsson A, Taboryski RJ, Dufva M. Photolithographic Patterning of FluorAcryl for Biphilic Microwell-Based Digital Bioassays and Selection of Bacteria. ACS Appl Mater Interfaces 2021; 13:43914-43924. [PMID: 34491739 DOI: 10.1021/acsami.1c10096] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
FluorAcryl 3298 (FA) is a UV-curable fluoroacrylate polymer commonly employed as a chemically resistant, hydrophobic, and oleophobic coating. Here, FA was used in a cleanroom-based microstructuring process to fabricate hydrophilic-in-hydrophobic (HiH) micropatterned surfaces containing femtoliter-sized well arrays. A short protocol involving direct UV photopatterning, an etching step, and final recovery of the hydrophobic properties of the polymer produced patterned substrates with micrometer resolution. Specifically, HiH microwell arrays were obtained with a well diameter of 10 μm and various well depths ranging from 300 nm to 1 μm with high reproducibility. The 300 nm deep microdroplet array (MDA) substrates were used for digital immunoassays, which presented a limit of detection in the attomolar range. This demonstrated the chemical functionality of the hydrophilic and hydrophobic surfaces. Furthermore, the 1 μm deep wells could efficiently capture particles such as bacteria, whereas the 300 nm deep substrates or other types of flat HiH molecular monolayers could not. Capturing a mixture of bacteria expressing red- and green-fluorescent proteins, respectively, served as a model for screening and selection of specific phenotypes using FA-MDAs. Here, green-fluorescent bacteria were specifically selected by overlaying a solution of gelatin methacryloyl (GelMA) mixed with a photoinitiator and using a high-magnification objective, together with custom pinholes, in a common fluorescence microscope to cross-link the hydrogel around the bacteria of interest. In conclusion, due to the straightforward processing, versatility, and low-price, FA is an advantageous alternative to more commonly used fluorinated materials, such as CYTOP or Teflon-AF, for the fabrication of HiH microwell arrays and other biphilic microstructures.
Collapse
Affiliation(s)
- Arianna Toppi
- Department of Health Technology, Technical University of Denmark, 2800 Kongens Lyngby, Denmark
| | - Louise L Busk
- Department of Health Technology, Technical University of Denmark, 2800 Kongens Lyngby, Denmark
| | - Hongxia Hu
- Department of Health Technology, Technical University of Denmark, 2800 Kongens Lyngby, Denmark
| | - Asli A Dogan
- Department of Health Technology, Technical University of Denmark, 2800 Kongens Lyngby, Denmark
| | - Alexander Jönsson
- Department of Health Technology, Technical University of Denmark, 2800 Kongens Lyngby, Denmark
| | - Rafael J Taboryski
- DTU Nanolab, National Centre for Nano Fabrication and Characterization, Technical University of Denmark, 2800 Kongens Lyngby, Denmark
| | - Martin Dufva
- Department of Health Technology, Technical University of Denmark, 2800 Kongens Lyngby, Denmark
| |
Collapse
|
8
|
Stone NE, Raj A, Young KM, DeLuca AP, Chrit FE, Tucker BA, Alexeev A, McDonald J, Benigno BB, Sulchek T. Label-free microfluidic enrichment of cancer cells from non-cancer cells in ascites. Sci Rep 2021; 11:18032. [PMID: 34504124 PMCID: PMC8429413 DOI: 10.1038/s41598-021-96862-y] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2021] [Accepted: 05/13/2021] [Indexed: 11/18/2022] Open
Abstract
The isolation of a patient's metastatic cancer cells is the first, enabling step toward treatment of that patient using modern personalized medicine techniques. Whereas traditional standard-of-care approaches select treatments for cancer patients based on the histological classification of cancerous tissue at the time of diagnosis, personalized medicine techniques leverage molecular and functional analysis of a patient's own cancer cells to select treatments with the highest likelihood of being effective. Unfortunately, the pure populations of cancer cells required for these analyses can be difficult to acquire, given that metastatic cancer cells typically reside in fluid containing many different cell populations. Detection and analyses of cancer cells therefore require separation from these contaminating cells. Conventional cell sorting approaches such as Fluorescence Activated Cell Sorting or Magnetic Activated Cell Sorting rely on the presence of distinct surface markers on cells of interest which may not be known nor exist for cancer applications. In this work, we present a microfluidic platform capable of label-free enrichment of tumor cells from the ascites fluid of ovarian cancer patients. This approach sorts cells based on differences in biomechanical properties, and therefore does not require any labeling or other pre-sort interference with the cells. The method is also useful in the cases when specific surface markers do not exist for cells of interest. In model ovarian cancer cell lines, the method was used to separate invasive subtypes from less invasive subtypes with an enrichment of ~ sixfold. In ascites specimens from ovarian cancer patients, we found the enrichment protocol resulted in an improved purity of P53 mutant cells indicative of the presence of ovarian cancer cells. We believe that this technology could enable the application of personalized medicine based on analysis of liquid biopsy patient specimens, such as ascites from ovarian cancer patients, for quick evaluation of metastatic disease progression and determination of patient-specific treatment.
Collapse
Affiliation(s)
- Nicholas E Stone
- The George W. Woodruff School of Mechanical Engineering, Georgia Institute of Technology, Atlanta, GA, 30332, USA
| | - Abhishek Raj
- Department of Mechanical Engineering, Indian Institute of Technology Patna, Bihar, 801103, India
| | - Katherine M Young
- Wallace H. Coulter Department of Biomedical Engineering, Georgia Institute of Technology, 313 Ferst Drive, Atlanta, GA, 30332-0535, USA
| | - Adam P DeLuca
- Department of Ophthalmology and Visual Science, Carver College of Medicine, Institute for Vision Research, University of Iowa, Iowa City, IA, 52242, USA
| | - Fatima Ezahra Chrit
- The George W. Woodruff School of Mechanical Engineering, Georgia Institute of Technology, Atlanta, GA, 30332, USA
| | - Budd A Tucker
- Department of Ophthalmology and Visual Science, Carver College of Medicine, Institute for Vision Research, University of Iowa, Iowa City, IA, 52242, USA
| | - Alexander Alexeev
- The George W. Woodruff School of Mechanical Engineering, Georgia Institute of Technology, Atlanta, GA, 30332, USA
| | - John McDonald
- School of Biology, Georgia Institute of Technology, 313 Ferst Drive, Atlanta, GA, 30332-0405, USA
| | | | - Todd Sulchek
- The George W. Woodruff School of Mechanical Engineering, Georgia Institute of Technology, Atlanta, GA, 30332, USA.
| |
Collapse
|
9
|
Venugopal D, Kasani N, Manjunath Y, Li G, Kaifi JT, Kwon JW. Clog-free high-throughput microfluidic cell isolation with multifunctional microposts. Sci Rep 2021; 11:16685. [PMID: 34404819 PMCID: PMC8370995 DOI: 10.1038/s41598-021-94123-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2021] [Accepted: 07/01/2021] [Indexed: 01/03/2023] Open
Abstract
Microfluidics have been applied to filtration of rare tumor cells from the blood as liquid biopsies. Processing is highly limited by low flow rates and device clogging due to a single function of fluidic paths. A novel method using multifunctional hybrid functional microposts was developed. A swift by-passing route for non-tumor cells was integrated to prevent very common clogging problems. Performance was characterized using microbeads (10 µm) and human cancer cells that were spiked in human blood. Design-I showed a capture efficiency of 96% for microbeads and 87% for cancer cells at 1 ml/min flow rate. An improved Design-II presented a higher capture efficiency of 100% for microbeads and 96% for cancer cells. Our method of utilizing various microfluidic functions of separation, bypass and capture has successfully guaranteed highly efficient separation of rare cells from biological fluids.
Collapse
Affiliation(s)
- Dilip Venugopal
- Department of Electrical Engineering and Computer Sciences, University of Missouri, Columbia, MO, 65211, USA
| | - Nanda Kasani
- Department of Electrical Engineering and Computer Sciences, University of Missouri, Columbia, MO, 65211, USA
| | - Yariswamy Manjunath
- Department of Surgery, Ellis Fischel Cancer Center, University of Missouri, Columbia, MO, 65212, USA
| | - Guangfu Li
- Department of Surgery, Ellis Fischel Cancer Center, University of Missouri, Columbia, MO, 65212, USA
| | - Jussuf T Kaifi
- Department of Surgery, Ellis Fischel Cancer Center, University of Missouri, Columbia, MO, 65212, USA
| | - Jae W Kwon
- Department of Electrical Engineering and Computer Sciences, University of Missouri, Columbia, MO, 65211, USA.
| |
Collapse
|
10
|
Wang J, Li Y, Wang R, Han C, Xu S, You T, Li Y, Xia J, Xu X, Wang D, Tang H, Yang C, Chen X, Peng Z. A Fully Automated and Integrated Microfluidic System for Efficient CTC Detection and Its Application in Hepatocellular Carcinoma Screening and Prognosis. ACS Appl Mater Interfaces 2021; 13:30174-30186. [PMID: 34142547 DOI: 10.1021/acsami.1c06337] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Analysis of circulating tumor cells (CTCs) is regarded as a useful diagnostic index to monitor tumor development and guide precision medicine. Although the immunoassay is a common strategy for CTC identification and heterogeneity characterization, it is challenged by poor reaction efficiency and laborious manipulations in microdevices, which hinder the sensitivity, throughput, simplification, and applicability. To meet the need for rapid, sensitive, and simple CTC analysis, we developed an efficient CTC detection system by integrating a 3D printed off-chip multisource reagent platform, a bubble retainer, and a single CTC capture microchip, which can achieve CTC capture and identification within 90 min. Compared with traditional CTC identification methods, this system decreases immunostaining time and antibody consumption by 90% and performs the on-chip immunoassay in a fully automated manner. Using this system, CTCs from the peripheral blood of 19 patients with various cancers were captured, detected, and compared with clinical data. The system shows great potential for early screening, real-time monitoring, and precision medicine for hepatocellular carcinoma (HCC). With the advantages of automation, stability, economy, and user-friendly operation, the proposed system is promising for clinical scenarios.
Collapse
Affiliation(s)
- Jie Wang
- Department of General Surgery, Department of Pathology, Department of Ultrasound, Xiang'an Hospital of Xiamen University, School of Medicine, Xiamen University, Xiamen 361101, China
- Organ Transplantation Institute of Xiamen University, Fujian Provincial Key Laboratory of Organ and Tissue Regeneration, Xiamen Key Laboratory of Regeneration Medicine, School of Medicine, Xiamen University, Xiamen 361101, China
| | - Yang Li
- Department of General Surgery, Department of Pathology, Department of Ultrasound, Xiang'an Hospital of Xiamen University, School of Medicine, Xiamen University, Xiamen 361101, China
- Organ Transplantation Institute of Xiamen University, Fujian Provincial Key Laboratory of Organ and Tissue Regeneration, Xiamen Key Laboratory of Regeneration Medicine, School of Medicine, Xiamen University, Xiamen 361101, China
| | - Rui Wang
- Department of General Surgery, Department of Pathology, Department of Ultrasound, Xiang'an Hospital of Xiamen University, School of Medicine, Xiamen University, Xiamen 361101, China
- Organ Transplantation Institute of Xiamen University, Fujian Provincial Key Laboratory of Organ and Tissue Regeneration, Xiamen Key Laboratory of Regeneration Medicine, School of Medicine, Xiamen University, Xiamen 361101, China
| | - Chao Han
- Department of General Surgery, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 20080, China
- National Key Laboratory of Science and Technology on Micro/Nano Fabrication, Department of Micro/Nano Electronics, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Shiquan Xu
- Department of General Surgery, Department of Pathology, Department of Ultrasound, Xiang'an Hospital of Xiamen University, School of Medicine, Xiamen University, Xiamen 361101, China
- Organ Transplantation Institute of Xiamen University, Fujian Provincial Key Laboratory of Organ and Tissue Regeneration, Xiamen Key Laboratory of Regeneration Medicine, School of Medicine, Xiamen University, Xiamen 361101, China
| | - Tingting You
- Department of General Surgery, Department of Pathology, Department of Ultrasound, Xiang'an Hospital of Xiamen University, School of Medicine, Xiamen University, Xiamen 361101, China
- Organ Transplantation Institute of Xiamen University, Fujian Provincial Key Laboratory of Organ and Tissue Regeneration, Xiamen Key Laboratory of Regeneration Medicine, School of Medicine, Xiamen University, Xiamen 361101, China
| | - Yuhuan Li
- Department of General Surgery, Department of Pathology, Department of Ultrasound, Xiang'an Hospital of Xiamen University, School of Medicine, Xiamen University, Xiamen 361101, China
- Organ Transplantation Institute of Xiamen University, Fujian Provincial Key Laboratory of Organ and Tissue Regeneration, Xiamen Key Laboratory of Regeneration Medicine, School of Medicine, Xiamen University, Xiamen 361101, China
| | - Junjie Xia
- Organ Transplantation Institute of Xiamen University, Fujian Provincial Key Laboratory of Organ and Tissue Regeneration, Xiamen Key Laboratory of Regeneration Medicine, School of Medicine, Xiamen University, Xiamen 361101, China
| | - Xing Xu
- The MOE Key Laboratory of Spectrochemical Analysis & Instrumentation, The Key Laboratory of Chemical Biology of Fujian Province, State Key Laboratory of Physical Chemistry of Solid Surfaces, Collaborative Innovation Center of Chemistry for Energy Materials, Department of Chemical Biology, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
| | - Dongmei Wang
- Department of General Surgery, Department of Pathology, Department of Ultrasound, Xiang'an Hospital of Xiamen University, School of Medicine, Xiamen University, Xiamen 361101, China
| | - Huamei Tang
- Department of General Surgery, Department of Pathology, Department of Ultrasound, Xiang'an Hospital of Xiamen University, School of Medicine, Xiamen University, Xiamen 361101, China
| | - Chaoyong Yang
- The MOE Key Laboratory of Spectrochemical Analysis & Instrumentation, The Key Laboratory of Chemical Biology of Fujian Province, State Key Laboratory of Physical Chemistry of Solid Surfaces, Collaborative Innovation Center of Chemistry for Energy Materials, Department of Chemical Biology, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
| | - Xiang Chen
- National Key Laboratory of Science and Technology on Micro/Nano Fabrication, Department of Micro/Nano Electronics, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Zhihai Peng
- Department of General Surgery, Department of Pathology, Department of Ultrasound, Xiang'an Hospital of Xiamen University, School of Medicine, Xiamen University, Xiamen 361101, China
- Organ Transplantation Institute of Xiamen University, Fujian Provincial Key Laboratory of Organ and Tissue Regeneration, Xiamen Key Laboratory of Regeneration Medicine, School of Medicine, Xiamen University, Xiamen 361101, China
- Department of General Surgery, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 20080, China
| |
Collapse
|
11
|
Hamad MA, Schanze N, Schommer N, Nührenberg T, Duerschmied D. Reticulated Platelets-Which Functions Have Been Established by In Vivo and In Vitro Data? Cells 2021; 10:cells10051172. [PMID: 34065800 PMCID: PMC8150321 DOI: 10.3390/cells10051172] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2021] [Revised: 04/29/2021] [Accepted: 05/10/2021] [Indexed: 12/18/2022] Open
Abstract
Reticulated platelets (RP) are the youngest platelet fraction released into the circulation. These immature platelets have increased RNA content, a larger cell volume, more dense granules, higher levels of surface activation markers and are thought to be more reactive compared to their mature counterparts. RP have been associated with cardiovascular disease, diabetes and increased mortality. Yet only a few animal studies investigating RP have been conducted so far and further investigations are warranted. Established methods to count RP are flow cytometry (staining with thiazole orange or SYTO13) or fully automated hematology analyzers (immature platelet fraction, IPF). IPF has been established as a diagnostic parameter in thrombocytopenia, cardiovascular disease and, in particular, the response to antiplatelet therapy. This review seeks to provide an overview of the key features of RP as well as preanalytical and analytical aspects that need to be considered when working with this platelet population.
Collapse
Affiliation(s)
- Muataz Ali Hamad
- Department of Cardiology and Angiology I, Heart Center, Faculty of Medicine, University of Freiburg, 79106 Freiburg im Breisgau, Germany; (N.S.); (N.S.); (D.D.)
- Spemann Graduate School of Biology and Medicine (SGBM), University of Freiburg, 79104 Freiburg im Breisgau, Germany
- Faculty of Biology, University of Freiburg, 79104 Freiburg im Breisgau, Germany
- Correspondence: ; Tel.: +49-761-270-70470
| | - Nancy Schanze
- Department of Cardiology and Angiology I, Heart Center, Faculty of Medicine, University of Freiburg, 79106 Freiburg im Breisgau, Germany; (N.S.); (N.S.); (D.D.)
| | - Nicolas Schommer
- Department of Cardiology and Angiology I, Heart Center, Faculty of Medicine, University of Freiburg, 79106 Freiburg im Breisgau, Germany; (N.S.); (N.S.); (D.D.)
| | - Thomas Nührenberg
- Department of Cardiology and Angiology II, Heart Center, Faculty of Medicine, University of Freiburg, 79189 Bad Krozingen, Germany;
| | - Daniel Duerschmied
- Department of Cardiology and Angiology I, Heart Center, Faculty of Medicine, University of Freiburg, 79106 Freiburg im Breisgau, Germany; (N.S.); (N.S.); (D.D.)
| |
Collapse
|
12
|
Liu Y, Su R, Song J, Yu X, Lin S, Zhu Z, Yang Y, Zhang M, Yang L, Zhang H, Xu X, Yang C. Stimulus-Responsive Microfluidic Interface Enables Efficient Enrichment and Cytogenetic Profiling of Circulating Myeloma Cells. ACS Appl Mater Interfaces 2021; 13:14920-14927. [PMID: 33755428 DOI: 10.1021/acsami.1c00382] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Minimal residual disease (MRD) provides an independent prognostic factor for multiple myeloma (MM) patients. However, clinical MRD assays suffer from highly invasive sampling, insufficient detection sensitivity, and high cost. Herein, a stiMulus-Responsive ligand-Decorated microfluidic chip (MRD-Chip) was developed for efficient capture and controlled release of circulating myeloma cells (CMCs) in the peripheral blood for noninvasive myeloma evaluation. The CD138 antibody-decorated herringbone chip with a disulfide linker was designed to enhance the collision probability between blood cells and capture antibodies, leading to high capture efficiency of CMCs. More importantly, the captured CMCs can be nondestructively released via a thiol-exchange reaction, allowing them to be used for subsequent cellular and molecular analysis. By fluorescence in situ hybridization assay, we successfully identified the cytogenetic abnormalities (chromosome 1q21 amplification and p53 deletion) of CMCs in clinical samples. Overall, with the merits of noninvasive sampling, high capture efficiency (70.93%), high throughput (1.5 mL/h), and nondestructive release of target cells (over 90% viability) for downstream analysis, our strategy provides new opportunities for myeloma evaluation, such as prognosis assessment, efficacy monitoring, and mechanism research of disease relapse and drug resistance.
Collapse
Affiliation(s)
- Yilong Liu
- MOE Key Laboratory of Spectrochemical Analysis & Instrumentation, Key Laboratory for Chemical Biology of Fujian Province, State Key Laboratory of Physical Chemical of Solid Surfaces, Department of Chemical Biology, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
| | - Rui Su
- Department of Hematology, The First Affiliated Hospital of Xiamen University, School of Medicine, Xiamen University, Xiamen 361005, China
| | - Juan Song
- MOE Key Laboratory of Spectrochemical Analysis & Instrumentation, Key Laboratory for Chemical Biology of Fujian Province, State Key Laboratory of Physical Chemical of Solid Surfaces, Department of Chemical Biology, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
| | - Xiyuan Yu
- MOE Key Laboratory of Spectrochemical Analysis & Instrumentation, Key Laboratory for Chemical Biology of Fujian Province, State Key Laboratory of Physical Chemical of Solid Surfaces, Department of Chemical Biology, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
| | - Shichao Lin
- MOE Key Laboratory of Spectrochemical Analysis & Instrumentation, Key Laboratory for Chemical Biology of Fujian Province, State Key Laboratory of Physical Chemical of Solid Surfaces, Department of Chemical Biology, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
| | - Zhi Zhu
- MOE Key Laboratory of Spectrochemical Analysis & Instrumentation, Key Laboratory for Chemical Biology of Fujian Province, State Key Laboratory of Physical Chemical of Solid Surfaces, Department of Chemical Biology, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
| | - Yuanyuan Yang
- Department of Laboratory Medicine, The First Affiliated Hospital of Xiamen University, Xiamen University, Xiamen 361005, China
| | - Mingxia Zhang
- MOE Key Laboratory of Spectrochemical Analysis & Instrumentation, Key Laboratory for Chemical Biology of Fujian Province, State Key Laboratory of Physical Chemical of Solid Surfaces, Department of Chemical Biology, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
| | - Liu Yang
- MOE Key Laboratory of Spectrochemical Analysis & Instrumentation, Key Laboratory for Chemical Biology of Fujian Province, State Key Laboratory of Physical Chemical of Solid Surfaces, Department of Chemical Biology, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
| | - Huimin Zhang
- MOE Key Laboratory of Spectrochemical Analysis & Instrumentation, Key Laboratory for Chemical Biology of Fujian Province, State Key Laboratory of Physical Chemical of Solid Surfaces, Department of Chemical Biology, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
- Innovation Laboratory for Sciences and Technologies of Energy Materials of Fujian Province (IKKEM), Xiamen 361005, China
| | - Xiuqin Xu
- Institute of Stem Cell and Regenerative Medicine, School of Medicine, Xiamen University, Xiamen 361005, China
| | - Chaoyong Yang
- MOE Key Laboratory of Spectrochemical Analysis & Instrumentation, Key Laboratory for Chemical Biology of Fujian Province, State Key Laboratory of Physical Chemical of Solid Surfaces, Department of Chemical Biology, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
- Innovation Laboratory for Sciences and Technologies of Energy Materials of Fujian Province (IKKEM), Xiamen 361005, China
| |
Collapse
|
13
|
Lauvrud AT, Gümüscü R, Wiberg R, Brohlin M, Kelk P, Wiberg M, Kingham PJ. Water jet-assisted lipoaspiration and Sepax cell separation system for the isolation of adipose stem cells with high adipogenic potential. J Plast Reconstr Aesthet Surg 2021; 74:2759-2767. [PMID: 33994109 DOI: 10.1016/j.bjps.2021.03.025] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2020] [Revised: 02/05/2021] [Accepted: 03/11/2021] [Indexed: 11/18/2022]
Abstract
INTRODUCTION Water jet-assisted liposuction has gained popularity due to favourable fat grafting outcomes. In this study, we compared stem cells obtained from fat isolated with manual or the water jet-assisted procedure. METHODS Liposuction of abdominal fat was performed using the two methods on each donor (n = 10). Aspirate samples were collagenase digested and the isolated cells seeded in vitro prior to proliferation, adipogenic differentiation and angiogenic activity analyses. RESULTS Cells from either procedure proliferated at similar rates and exhibited a similar colony-forming ability. The cells expressed stem cell markers CD73, CD90 and CD105. In the water jet cell preparations, there were higher numbers of cells expressing CD146. Robust adipogenic differentiation was observed in cultures expanded from both manual and water jet lipoaspirates. Gene analysis showed higher expression of the adipocyte markers aP2 and GLUT4 in the adipocyte-differentiated water jet cell preparations, and ELISA indicated increased secretion of adiponectin from these cells. Both cell groups expressed vasculogenic factors and the water jet cells promoted the highest levels of in vitro angiogenesis. Given these positive results, we further characterised the water jet cells when prepared using an automated closed cell processing unit, the Sepax-2 system (Cytiva). The growth and stem cell properties of the Sepax-processed cells were similar to the standard centrifugation protocol, but there was evidence for greater adipogenic differentiation in the Sepax-processed cells. CONCLUSIONS Water jet lipoaspirates yield cells with high adipogenic potential and angiogenic activity, which may be beneficial for use in cell-assisted lipotransfers.
Collapse
Affiliation(s)
- Anne Therese Lauvrud
- Department of Integrative Medical Biology, Umeå University, Sweden; Department of Surgical and Perioperative Sciences, Umeå University, Umeå 907 37, Sweden.
| | - Rojda Gümüscü
- Department of Surgical and Perioperative Sciences, Umeå University, Umeå 907 37, Sweden
| | - Rebecca Wiberg
- Department of Integrative Medical Biology, Umeå University, Sweden; Department of Surgical and Perioperative Sciences, Umeå University, Umeå 907 37, Sweden
| | - Maria Brohlin
- Department of Clinical Microbiology, Infection and Immunity, Umeå University, Sweden
| | - Peyman Kelk
- Department of Integrative Medical Biology, Umeå University, Sweden
| | - Mikael Wiberg
- Department of Integrative Medical Biology, Umeå University, Sweden; Department of Surgical and Perioperative Sciences, Umeå University, Umeå 907 37, Sweden
| | - Paul J Kingham
- Department of Integrative Medical Biology, Umeå University, Sweden
| |
Collapse
|
14
|
Kraus D, Kleiber A, Ehrhardt E, Leifheit M, Horbert P, Urban M, Gleichmann N, Mayer G, Popp J, Henkel T. Three step flow focusing enables image-based discrimination and sorting of late stage 1 Haematococcus pluvialis cells. PLoS One 2021; 16:e0249192. [PMID: 33780476 PMCID: PMC8007022 DOI: 10.1371/journal.pone.0249192] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2020] [Accepted: 03/15/2021] [Indexed: 12/15/2022] Open
Abstract
Label-free and gentle separation of cell stages with desired target properties from mixed stage populations are a major research task in modern biotechnological cultivation process and optimization of micro algae. The reported microfluidic sorter system (MSS) allows the subsequent investigation of separated subpopulations. The implementation of a viability preserving MSS is shown for separation of late stage 1 Haematococcus pluvialis (HP) cells form a mixed stage population. The MSS combines a three-step flow focusing unit for aligning the cells in single file transportation mode at the center of the microfluidic channel with a pure hydrodynamic sorter structure for cell sorting. Lateral displacement of the cells into one of the two outlet channels is generated by piezo-actuated pump chambers. In-line decision making for sorting is based on a user-definable set of image features and properties. The reported MSS significantly increased the purity of target cells in the sorted population (94%) in comparison to the initial mixed stage population (19%).
Collapse
Affiliation(s)
- Daniel Kraus
- Leibniz Institute of Photonic Technology, Jena, Germany
- * E-mail:
| | | | - Enrico Ehrhardt
- Gesellschaft zur Förderung von Medizin-, Bio- und Umwelttechnologien e. V. (GMBU), Halle (Saale), Germany
| | - Matthias Leifheit
- Gesellschaft zur Förderung von Medizin-, Bio- und Umwelttechnologien e. V. (GMBU), Halle (Saale), Germany
| | - Peter Horbert
- Leibniz Institute of Photonic Technology, Jena, Germany
| | | | | | - Günter Mayer
- Leibniz Institute of Photonic Technology, Jena, Germany
| | - Jürgen Popp
- Leibniz Institute of Photonic Technology, Jena, Germany
- Institute of Physical Chemistry and Abbe Center of Photonics, Friedrich-Schiller-University, Jena, Germany
| | - Thomas Henkel
- Leibniz Institute of Photonic Technology, Jena, Germany
| |
Collapse
|
15
|
Pei Z, Ma Y, Wang C, Wu Y, Song F, Wu X. Optimal design of a driver of interdigital transducers used to generate standing surface acoustic waves for cell sorting. Rev Sci Instrum 2021; 92:034705. [PMID: 33820111 DOI: 10.1063/5.0036856] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/08/2023]
Abstract
A compact driver based on current feedback amplifiers is designed to drive interdigital transducers (IDTs) that generate standing surface acoustic waves for cell sorting. Compared with commercial RF amplifiers, this driver can be used to drive a wider range of loads without impedance matching. Furthermore, the driver works in a switch mode triggered by target cells, which significantly reduces power consumption in the system. A Butterworth-Van Dyke equivalent circuit was fabricated to study the electrical characteristics of the IDTs, and the driver was designed and optimized by circuit simulations. A cell sorter was constructed and tested experimentally to demonstrate that the driver meets sorting requirements. The driver allows the cell sorter to extract rare cells while otherwise consuming low power.
Collapse
Affiliation(s)
- Zhiguo Pei
- University of Sciences and Technology of China, Hefei, Anhui 230026, China
| | - Yuting Ma
- CAS Key Laboratory of Bio-Medical Diagnostics, Suzhou Institute of Biomedical Engineering and Technology, Chinese Academy of Sciences, Suzhou, Jiangsu, 215163, China
| | - Ce Wang
- University of Sciences and Technology of China, Hefei, Anhui 230026, China
| | - Yunliang Wu
- CAS Key Laboratory of Bio-Medical Diagnostics, Suzhou Institute of Biomedical Engineering and Technology, Chinese Academy of Sciences, Suzhou, Jiangsu, 215163, China
| | - Feifei Song
- CAS Key Laboratory of Bio-Medical Diagnostics, Suzhou Institute of Biomedical Engineering and Technology, Chinese Academy of Sciences, Suzhou, Jiangsu, 215163, China
| | - Xiaodong Wu
- University of Sciences and Technology of China, Hefei, Anhui 230026, China
| |
Collapse
|
16
|
Queiroz V, Muxel SM, Inguglia L, Chiaramonte M, Custódio MR. Comparative study of coelomocytes from Arbacia lixula and Lythechinus variegatus: Cell characterization and in vivo evidence of the physiological function of vibratile cells. Fish Shellfish Immunol 2021; 110:1-9. [PMID: 33378698 DOI: 10.1016/j.fsi.2020.12.014] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/15/2020] [Revised: 12/19/2020] [Accepted: 12/22/2020] [Indexed: 06/12/2023]
Abstract
The knowledge on echinoderm coelomocytes has increased in recent years, but researchers still face a complex problem: how to obtain purified cells. Even flow cytometry being useful to address coelomocytes in suspension, the need for a method able to provide isolated cells is still noteworthy. Here, we use Imaging Flow Cytometry (IFC) to characterize the coelomocytes of two sea urchin species - Arbacia lixula and Lytechinus variegatus - and obtain gates to isolate cell populations. Then, we used these gates to study the physiological response of A. lixula coelomocytes during an induced immune challenge with Escherichia coli. An analysis of area and aspect ratio parameters of the flow cytometer allowed the identification of two main cell populations in the coelomic fluid: circular and elongated cells. A combination of this method with nucleus labeling using propidium iodide allowed the determination of gates containing isolated subpopulations of vibratile cells, red spherulocytes, and two phagocytes subpopulations in both species. We observed that during an induced bacterial immune challenge, A. lixula was able to modulate coelomocyte frequencies, increasing the phagocytes and decreasing red spherulocytes and vibratile cells. These results indicate that vibratile cells and red spherulocytes act by immobilizing and stoping bacterial growth, respectively, cooperating with phagocytes in the immune response. The use of IFC was fundamental not only to identify specific gates for the main coelomic subpopulations but also allowed the investigation on how echinoids modulate their physiological responses during immune challenges. Furthermore, we provide the first experimental evidence about the role of vibratile cells, corroborating its involvement with the immune system.
Collapse
Affiliation(s)
- Vinicius Queiroz
- Department of Physiology, Institute of Biosciences, University of São Paulo, São Paulo, Brazil.
| | - Sandra M Muxel
- Department of Physiology, Institute of Biosciences, University of São Paulo, São Paulo, Brazil
| | - Luigi Inguglia
- Dept. STEBICEF, University of the Study of Palermo, Via Archirafi 18, 90123, Palermo, Italy
| | - Marco Chiaramonte
- Dept. STEBICEF, University of the Study of Palermo, Via Archirafi 18, 90123, Palermo, Italy
| | - Márcio R Custódio
- Department of Physiology, Institute of Biosciences, University of São Paulo, São Paulo, Brazil
| |
Collapse
|
17
|
Guo X, Zhao J, Du Y, Liu Y, Ma Y, Wang R, Ji X, Wu J, Dong L. Using Disposable Membrane Cell Collector to Enrich Lung Adenocarcinoma Cells in Bloody Pleural Effusion for Anaplastic Lymphoma Kinase Fusion Gene Detection. Acta Cytol 2021; 65:235-241. [PMID: 33631757 DOI: 10.1159/000512868] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2020] [Accepted: 11/06/2020] [Indexed: 11/19/2022]
Abstract
PURPOSE For anaplastic lymphoma kinase (ALK) gene detection, the centrifugal sedimentation method (CSM) and cell block method (CBM) are commonly used to process samples of bloody pleural effusions (BPEs). However, in practice, the impurity content in the processed samples often affects the results and even leads to the detection failure. The purpose of this study was to establish a cell enrichment method (CEM) by using a disposable membrane cell collector to remove blood and inflammatory cells and enrich lung adenocarcinoma cells in BPE for more efficient RNA extraction and ALK gene detection. MATERIALS AND METHODS CEM proposed in this study and the traditional CSM and CBM were used to treat BPE samples collected from 37 lung adenocarcinoma patients. A DeNovix DS-11 ultraviolet spectrophotometer was used to measure the concentration and purity of extracted RNA. Amplification refractory mutation systems (ARMS) and ABI 7500 fluorescence qPCR were used to detect ALK gene. Through statistical analysis, the CEM was compared with the CSM and CBM in RNA concentration, purity, and ALK gene detection results. RESULTS The concentration of RNA extracted by using the CEM was significantly higher than that extracted by using the CBM and CSM (p < 0.001). The purity of RNA extracted by using the CEM was significantly higher than that by the other 2 methods (p = 0.011, p = 0.005). ALK gene testing with PCR was successful in all the samples using the CEM, but 2 cases by the CSM and 1 case by the CBM failed. CONCLUSIONS Using the disposable membrane cell collector to process BPE of lung adenocarcinoma patients for RNA extraction and ALK gene detection is more effective and successful compared with the traditional methods, and it is suggested to be further applied and popularized in clinical practice.
Collapse
Affiliation(s)
- Xiao Guo
- Department of Cytology, The Fourth Hospital of Hebei Medical University, Shijiazhuang, China
| | - Jingxia Zhao
- Department of Neurology, The Fourth Hospital of Hebei Medical University, Shijiazhuang, China
| | - Yun Du
- Department of Cytology, The Fourth Hospital of Hebei Medical University, Shijiazhuang, China,
| | - Ying Liu
- Department of Cytology, The Fourth Hospital of Hebei Medical University, Shijiazhuang, China
| | - Yang Ma
- Department of Cytology, The Fourth Hospital of Hebei Medical University, Shijiazhuang, China
| | - Rui Wang
- Department of Cytology, The Fourth Hospital of Hebei Medical University, Shijiazhuang, China
| | - Xiaokun Ji
- Department of Cytology, The Fourth Hospital of Hebei Medical University, Shijiazhuang, China
| | - Juan Wu
- Department of Cytology, The Fourth Hospital of Hebei Medical University, Shijiazhuang, China
| | - Lvli Dong
- Department of Cytology, The Fourth Hospital of Hebei Medical University, Shijiazhuang, China
| |
Collapse
|
18
|
Williams PS, Moore LR, Joshi P, Goodin M, Zborowski M, Fleischman A. Microfluidic chip for graduated magnetic separation of circulating tumor cells by their epithelial cell adhesion molecule expression and magnetic nanoparticle binding. J Chromatogr A 2021; 1637:461823. [PMID: 33385746 PMCID: PMC7827554 DOI: 10.1016/j.chroma.2020.461823] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2020] [Revised: 12/14/2020] [Accepted: 12/15/2020] [Indexed: 12/18/2022]
Abstract
The enumeration of circulating tumor cells (CTCs) in the peripheral bloodstream of metastatic cancer patients has contributed to improvements in prognosis and therapeutics. There have been numerous approaches to capture and counting of CTCs. However, CTCs have potential information beyond simple enumeration and hold promise as a liquid biopsy for cancer and a pathway for personalized cancer therapy by detecting the subset of CTCs having the highest metastatic potential. There is evidence that epithelial cell adhesion molecule (EpCAM) expression level distinguishes these highly metastatic CTCs. The few previous approaches to selective CTC capture according to EpCAM expression level are reviewed. A new two-stage microfluidic device for separation, enrichment and release of CTCs into subpopulations sorted by EpCAM expression level is presented here. It relies upon immunospecific magnetic nanoparticle labeling of CTCs followed by their field- and flow-based separation in the first stage and capture as discrete subpopulations in the second stage. To fine tune the separation, the magnetic field profile across the first stage microfluidic channel may be modified by bonding small Vanadium Permendur strips to its outer walls. Mathematical modeling of magnetic fields and fluid flows supports the soundness of the design.
Collapse
Affiliation(s)
- P Stephen Williams
- Cambrian Technologies Inc., 1772 Saratoga Avenue, Cleveland, OH 44109, USA.
| | - Lee R Moore
- Department of Biomedical Engineering, Lerner Research Institute, Cleveland Clinic, 9500 Euclid Avenue, Cleveland, OH 44195, USA
| | | | - Mark Goodin
- SimuTech Group, 1742 Georgetown Rd., Suite B, Hudson, OH 44236, USA
| | - Maciej Zborowski
- Department of Biomedical Engineering, Lerner Research Institute, Cleveland Clinic, 9500 Euclid Avenue, Cleveland, OH 44195, USA
| | - Aaron Fleischman
- Department of Biomedical Engineering, Lerner Research Institute, Cleveland Clinic, 9500 Euclid Avenue, Cleveland, OH 44195, USA
| |
Collapse
|
19
|
Aspland A, Chew C, Douagi I, Galland T, Marvin J, Monts J, Nance D, Smith AL, Solga M. Risk awareness during operation of analytical flow cytometers and implications throughout the COVID-19 pandemic. Cytometry A 2021; 99:81-89. [PMID: 34038035 PMCID: PMC10493867 DOI: 10.1002/cyto.a.24282] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2020] [Revised: 11/24/2020] [Accepted: 12/01/2020] [Indexed: 11/07/2022]
Abstract
The COVID-19 pandemic has brought biosafety to the forefront of many life sciences. The outbreak has compelled research institutions to re-evaluate biosafety practices and potential at-risk areas within research laboratories and more specifically within Shared Resource Laboratories (SRLs). In flow cytometry facilities, biological safety assessment encompasses known hazards based on the biological sample and associated risk group, as well as potential or unknown hazards, such as aerosol generation and instrument "failure modes." Cell sorting procedures undergo clearly defined biological safety assessments and adhere to well-established biosafety guidelines that help to protect SRL staff and users against aerosol exposure. Conversely, benchtop analyzers are considered low risk due to their low sample pressure and enclosed fluidic systems, although there is little empirical evidence to support this assumption of low risk. To investigate this, we evaluated several regions on analyzers using the Cyclex-d microsphere assay, a recently established method for cell sorter aerosol containment testing. We found that aerosol and/or droplet hazards were detected on all benchtop analyzers predominantly during operation in "failure modes." These results indicate that benchtop analytical cytometers present a more complicated set of risks than are commonly appreciated.
Collapse
Affiliation(s)
- Avrill Aspland
- Sydney Cytometry Core Research Facility, Centenary Institute, The University of Sydney, Sydney, Australia
| | - Claude Chew
- Flow Cytometry Core Facility, School of Medicine, University of Virginia, Charlottesville, Virginia
| | - Iyadh Douagi
- Flow Cytometry Section, Research Technologies Branch, NIAID, NIH, Bethesda, Maryland
| | - Tessa Galland
- Flow Cytometry Core Facility, Health Science Center, University of Utah, Salt Lake City, Utah
| | - James Marvin
- Flow Cytometry Core Facility, Health Science Center, University of Utah, Salt Lake City, Utah
| | - Josh Monts
- Flow Cytometry Core Facility, Health Science Center, University of Utah, Salt Lake City, Utah
| | - Dayton Nance
- Flow Cytometry Section, Research Technologies Branch, NIAID, NIH, Bethesda, Maryland
| | - Adrian L. Smith
- Sydney Cytometry Core Research Facility, Centenary Institute, The University of Sydney, Sydney, Australia
| | - Michael Solga
- Flow Cytometry Core Facility, School of Medicine, University of Virginia, Charlottesville, Virginia
| |
Collapse
|
20
|
Pelle M, Das AAK, Madden LA, Paunov VN. Bioimprint Mediated Label-Free Isolation of Pancreatic Tumor Cells from a Healthy Peripheral Blood Cell Population. Adv Biosyst 2020; 4:e2000054. [PMID: 33016004 DOI: 10.1002/adbi.202000054] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/19/2020] [Revised: 09/22/2020] [Indexed: 11/11/2022]
Abstract
New techniques are required for earlier diagnosis and response to treatment of pancreatic cancer. Here, a label-free approach is reported in which circulating pancreatic tumor cells are isolated from healthy peripheral blood cells via cell bioimprinting technology. The method involves pre-fabrication of pancreatic cell layers and sequential casting of cell surfaces with a series of custom-made resins to produce negative cell imprints. The imprint is functionalized with a combination of polymers to engineer weak attraction to the cells which is further amplified by the increased area of contact with the matching cells. A flow-through bioimprint chip is designed and tested for selectivity toward two pancreatic tumor cell lines, ASPC-1 and Mia-PaCa-2. Healthy human peripheral blood mononuclear cells (PBMCs) are spiked with pancreatic tumor cells at various concentrations. Bioimprints are designed for preferential retention of the matching pancreatic tumor cells and with respect to PBMCs. Tumor bioimprints are capable of capturing and concentrating pancreatic tumor cells from a mixed cell population with increased retention observed with the number of seedings. ASPC-1 bioimprints preferentially retain both types of pancreatic tumor cells. This technology could be relevant for the collection and interrogation of liquid biopsies, early detection, and relapse monitoring of pancreatic cancer patients.
Collapse
Affiliation(s)
- Marie Pelle
- Department of Chemistry and Biochemistry, University of Hull, Hull, HU6 7RX, UK
| | - Anupam A K Das
- Department of Chemistry and Biochemistry, University of Hull, Hull, HU6 7RX, UK
| | - Leigh A Madden
- Department of Biomedical Sciences, University of Hull, Hull, HU6 7RX, UK
| | - Vesselin N Paunov
- Department of Chemistry and Biochemistry, University of Hull, Hull, HU6 7RX, UK
| |
Collapse
|
21
|
Cohen EN, Jayachandran G, Hardy MR, Venkata Subramanian AM, Meng X, Reuben JM. Antigen-agnostic microfluidics-based circulating tumor cell enrichment and downstream molecular characterization. PLoS One 2020; 15:e0241123. [PMID: 33095819 PMCID: PMC7584183 DOI: 10.1371/journal.pone.0241123] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2020] [Accepted: 10/08/2020] [Indexed: 12/18/2022] Open
Abstract
Circulating tumor cells (CTC) isolated from the peripheral blood of cancer patients by a minimally invasive procedure provide surrogate markers of the tumor that can be repeatedly sampled. However, the selection and enumeration of CTCs by traditional methods based on surface proteins like EPCAM may not detect CTCs with a mesenchymal phenotype. Here, we employed an antibody-agnostic platform, the Parsortix® PR1 system, which enriches CTCs based on cell size and membrane deformability. We evaluated the linearity, sensitivity, and specificity of the Parsortix PR1 system in tandem with 3 downstream molecular characterization techniques using healthy donor blood spiked with cultured cell lines. Signal amplification of mRNA using a QuantiGene 25-gene assay was able to quantitate multiple epithelial genes, including CDH1, EGFR, ERBB2, KRT18, and MUC1, from high numbers of spiked cells and was able to detect KRT18 when only 50 MCF-7 or SUM190 cells were spiked into healthy donor blood. However, target amplification of mRNA by quantitative polymerase chain reaction (qPCR) showed better sensitivity; qPCR without pre-amplification was able to detect CTC-related genes in Parsortix PR1-enriched cells when as few as 5 SKBR3 cells were spiked into blood. Finally, the HTG EdgeSeq nuclease protection assay was able to profile mRNA expression of over 2,560 cancer-related genes from Parsortix PR1 enriched cells, showing enrichment in cancer signaling pathways and ERBB2, KRT19, and KRT7. Overall, the Parsortix PR1 platform may be amenable to transition into routine clinical workflows.
Collapse
Affiliation(s)
- Evan N. Cohen
- Division of Pathology and Laboratory Medicine, Department of Hematopathology, The University of Texas MD Anderson Cancer Center, Houston, Texas, United States of America
- * E-mail:
| | - Gitanjali Jayachandran
- Division of Pathology and Laboratory Medicine, Department of Hematopathology, The University of Texas MD Anderson Cancer Center, Houston, Texas, United States of America
| | - Max R. Hardy
- Division of Pathology and Laboratory Medicine, Department of Hematopathology, The University of Texas MD Anderson Cancer Center, Houston, Texas, United States of America
| | - Ananya M. Venkata Subramanian
- Division of Pathology and Laboratory Medicine, Department of Hematopathology, The University of Texas MD Anderson Cancer Center, Houston, Texas, United States of America
| | - Xiangtian Meng
- Division of Pathology and Laboratory Medicine, Department of Hematopathology, The University of Texas MD Anderson Cancer Center, Houston, Texas, United States of America
| | - James M. Reuben
- Division of Pathology and Laboratory Medicine, Department of Hematopathology, The University of Texas MD Anderson Cancer Center, Houston, Texas, United States of America
| |
Collapse
|
22
|
Chen K, Amontree J, Varillas J, Zhang J, George TJ, Fan ZH. Incorporation of lateral microfiltration with immunoaffinity for enhancing the capture efficiency of rare cells. Sci Rep 2020; 10:14210. [PMID: 32848184 PMCID: PMC7450051 DOI: 10.1038/s41598-020-71041-7] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2020] [Accepted: 07/22/2020] [Indexed: 02/03/2023] Open
Abstract
The methods for isolating rare cells such as circulating tumor cells (CTCs) can be generally classified into two categories: those based on physical properties (e.g., size) and methods based on biological properties (e.g., immunoaffinity). CellSearch, the only FDA-approved method for the CTC-based cancer prognosis, relies on immunoaffinity interactions between CTCs and antibodies immobilized on magnetic particles. Immunoaffinity-based CTC isolation has also been employed in microfluidic devices, which show higher capture efficiency than CellSearch. We report here our investigation of combining size-based microfiltration into a microfluidic device with immunoaffinity for enhanced capture efficiency of CTCs. The device consists of four serpentine main channels, and each channel contains an array of lateral filters that create a two-dimensional flow. The main flow is through the serpentine channel, allowing the majority of the sample to pass by while the secondary flow goes through the lateral filters. The device design is optimized to make all fluid particles interact with filters. The filter sizes range from 24 to 12 µm, being slightly larger than or having similar dimension of CTCs. These filters are immobilized with antibodies specific to CTCs and thus they function as gates, allowing normal blood cells to pass by while forcing the interactions between CTCs and antibodies on the filter surfaces. The hydrodynamic force experienced by a CTC was also studied for optimal experimental conditions to ensure immunoaffinity-enabled cell capture. The device was evaluated by capturing two types of tumor cells spiked in healthy blood or a buffer, and we found that their capture efficiency was between 87.2 and 93.5%. The platform was further validated by isolating CTCs from blood samples of patients with metastatic pancreatic cancer.
Collapse
Affiliation(s)
- Kangfu Chen
- Interdisciplinary Microsystems Group (IMG), Department of Mechanical and Aerospace Engineering, University of Florida, P.O. BOX 116250, Gainesville, FL, 32611, USA
| | - Jacob Amontree
- Interdisciplinary Microsystems Group (IMG), Department of Mechanical and Aerospace Engineering, University of Florida, P.O. BOX 116250, Gainesville, FL, 32611, USA
| | - Jose Varillas
- J. Crayton Pruitt Family Department of Biomedical Engineering, University of Florida, P.O. Box 116131, Gainesville, FL, 32611, USA
| | - Jinling Zhang
- Interdisciplinary Microsystems Group (IMG), Department of Mechanical and Aerospace Engineering, University of Florida, P.O. BOX 116250, Gainesville, FL, 32611, USA
| | - Thomas J George
- Department of Medicine, University of Florida, P.O. Box 100278, Gainesville, FL, 32610, USA
| | - Z Hugh Fan
- Interdisciplinary Microsystems Group (IMG), Department of Mechanical and Aerospace Engineering, University of Florida, P.O. BOX 116250, Gainesville, FL, 32611, USA.
- J. Crayton Pruitt Family Department of Biomedical Engineering, University of Florida, P.O. Box 116131, Gainesville, FL, 32611, USA.
- Department of Chemistry, University of Florida, P.O. Box 117200, Gainesville, FL, 32611, USA.
| |
Collapse
|
23
|
Bu J, Nair A, Kubiatowicz LJ, Poellmann MJ, Jeong WJ, Reyes-Martinez M, Armstrong AJ, George DJ, Wang AZ, Zhang T, Hong S. Surface engineering for efficient capture of circulating tumor cells in renal cell carcinoma: From nanoscale analysis to clinical application. Biosens Bioelectron 2020; 162:112250. [PMID: 32392161 PMCID: PMC10510655 DOI: 10.1016/j.bios.2020.112250] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2020] [Revised: 03/29/2020] [Accepted: 04/26/2020] [Indexed: 12/18/2022]
Abstract
Sensitive detection of circulating tumor cells (CTCs) from patients' peripheral blood facilitates on-demand monitoring of tumor progression. However, clinically significant capture of renal cell carcinoma CTCs (RCC-CTCs) remains elusive due to their heterogenous surface receptor expression. Herein, a novel capture platform is developed to detect RCC-CTCs through integration of dendrimer-mediated multivalent binding, a mixture of antibodies, and biomimetic cell rolling. The nanoscale binding kinetics measured using atomic force microscopy reveal that dendrimer-coated surfaces exhibit an order of magnitude enhancement in off-rate kinetics compared to surface without dendrimers, which translated into cell capture improvements by ~60%. Selectin-induced cell rolling facilitates surface recruitment of cancer cells, further improving cancer cell capture by up to 1.7-fold. Lastly, an antibody cocktail targeting four RCC-CTC surface receptors, which included epithelial cell adhesion molecule (EpCAM), carbonic anhydrase IX (CA9), epidermal growth factor receptor (EGFR), and hepatocyte growth factor receptor (c-Met), improves the capture of RCC cells by up to 80%. The optimal surface configuration outperforms the conventional assay solely relying on EpCAM, as demonstrated by detecting significantly more CTCs in patients' samples (9.8 ± 5.1 vs. 1.8 ± 2.0 CTCs mL-1). These results demonstrate that the newly engineered capture platform effectively detects RCC-CTCs for their potential use as tumor biomarkers.
Collapse
Affiliation(s)
- Jiyoon Bu
- Pharmaceutical Sciences Division, School of Pharmacy, University of Wisconsin, Madison, Madison, WI, 53705, USA
| | - Ashita Nair
- Pharmaceutical Sciences Division, School of Pharmacy, University of Wisconsin, Madison, Madison, WI, 53705, USA
| | - Luke J Kubiatowicz
- Pharmaceutical Sciences Division, School of Pharmacy, University of Wisconsin, Madison, Madison, WI, 53705, USA
| | - Michael J Poellmann
- Pharmaceutical Sciences Division, School of Pharmacy, University of Wisconsin, Madison, Madison, WI, 53705, USA
| | - Woo-Jin Jeong
- Pharmaceutical Sciences Division, School of Pharmacy, University of Wisconsin, Madison, Madison, WI, 53705, USA
| | - Marco Reyes-Martinez
- Department of Medicine, Division of Medical Oncology, Duke Cancer Institute, Duke University, Durham, NC, 27710, USA
| | - Andrew J Armstrong
- Department of Medicine, Division of Medical Oncology, Duke Cancer Institute, Duke University, Durham, NC, 27710, USA
| | - Daniel J George
- Department of Medicine, Division of Medical Oncology, Duke Cancer Institute, Duke University, Durham, NC, 27710, USA
| | - Andrew Z Wang
- Department of Radiation Oncology, University of North Carolina at Chapel Hill, Chapel Hill, NC, 27599, USA
| | - Tian Zhang
- Department of Medicine, Division of Medical Oncology, Duke Cancer Institute, Duke University, Durham, NC, 27710, USA
| | - Seungpyo Hong
- Pharmaceutical Sciences Division, School of Pharmacy, University of Wisconsin, Madison, Madison, WI, 53705, USA; Yonsei Frontier Lab and Department of Pharmacy, Yonsei University, Seoul, 03722, South Korea.
| |
Collapse
|
24
|
Yaghoobi M, Saidi MS, Ghadami S, Kashaninejad N. An Interface-Particle Interaction Approach for Evaluation of the Co-Encapsulation Efficiency of Cells in a Flow-Focusing Droplet Generator. Sensors (Basel) 2020; 20:s20133774. [PMID: 32635674 PMCID: PMC7374427 DOI: 10.3390/s20133774] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/13/2020] [Revised: 06/28/2020] [Accepted: 07/01/2020] [Indexed: 11/16/2022]
Abstract
Droplet-based microfluidics offers significant advantages, such as high throughput and scalability, making platforms based on this technology ideal candidates for point-of-care (POC) testing and clinical diagnosis. However, the efficiency of co-encapsulation in droplets is suboptimal, limiting the applicability of such platforms for the biosensing applications. The homogeneity of the bioanalytes in the droplets is an unsolved problem. While there is extensive literature on the experimental setups and active methods used to increase the efficiency of such platforms, passive techniques have received less attention, and their fundamentals have not been fully explored. Here, we develop a novel passive technique for investigating cell encapsulation using the finite element method (FEM). The level set method was used to track the interfaces of forming droplets. The effects of walls and the droplet interfaces on relatively large cells were calculated to track them more accurately during encapsulation. The static surface tension force was used to account for the effects of the interfaces on cells. The results revealed that the pairing efficiency is highly sensitive to the standard deviation (SD) of the distance between the cells in the entrance channel. The pairing efficiency prediction error of our model differed by less than 5% from previous experiments. The proposed model can be used to evaluate the performance of droplet-based microfluidic devices to ensure higher precision for co-encapsulation of cells.
Collapse
Affiliation(s)
- Mohammad Yaghoobi
- Department of Mechanical Engineering, Sharif University of Technology, Azadi St., Tehran 11155, Iran;
| | - Mohammad Said Saidi
- Department of Mechanical Engineering, Sharif University of Technology, Azadi St., Tehran 11155, Iran;
- Correspondence: (M.S.S.); (N.K.)
| | - Sepehr Ghadami
- Department of Mechanical Engineering, University of Waterloo, 200 University Avenue West, N2L 3G, Waterloo, ON N2L 3G1, Canada;
| | - Navid Kashaninejad
- Queensland Micro- and Nanotechnology Centre, Nathan Campus, Griffith University, 170 Kessels Road, Brisbane QLD 4111, Australia
- Correspondence: (M.S.S.); (N.K.)
| |
Collapse
|
25
|
Abstract
Circulating tumor cells (CTCs) largely contribute to cancer metastasis and show potential prognostic significance in cancer isolation and detection. Miniaturization has progressed significantly in the last decade which in turn enabled the development of several microfluidic systems. The microfluidic systems offer a controlled microenvironment for studies of fundamental cell biology, resulting in the rapid development of microfluidic isolation of CTCs. Due to the inherent ability of magnets to provide forces at a distance, the technology of CTCs isolation based on the magnetophoresis mechanism has become a routine methodology. This historical review aims to introduce two principles of magnetic isolation and recent techniques, facilitating research in this field and providing alternatives for researchers in their study of magnetic isolation. Researchers intend to promote effective CTC isolation and analysis as well as active development of next-generation cancer treatment. The first part of this review summarizes the primary principles based on positive and negative magnetophoretic isolation and describes the metrics for isolation performance. The second part presents a detailed overview of the factors that affect the performance of CTC magnetic isolation, including the magnetic field sources, functionalized magnetic nanoparticles, magnetic fluids, and magnetically driven microfluidic systems.
Collapse
Affiliation(s)
- Laan Luo
- School of Chemical EngineeringKunming University of Science and TechnologyKunmingChina
| | - Yongqing He
- School of Chemical EngineeringKunming University of Science and TechnologyKunmingChina
- Chongqing Key Laboratory of Micro‐Nano System and Intelligent SensingChongqing Technology and Business UniversityChongqingChina
| |
Collapse
|
26
|
Abstract
In this work, it is presented a micro-optofluidic flow detector used for on-chip biological and chemical samples investigation. It is made in Poly-dimethyl-siloxane using a master-slave approach based on the 3D-Printing techniques. The micro-optofluidic device is made by assembling a microfluidic T-junction with a micro-optical section that consists of two optical fiber insertions and a PDMS gold-spattered micro-waveguide. The working principle in the detection is based on a different light transmission correlated to the fluid interfering with the laser beam in a micro-channel section. The proposed solution allows to realize a PDMS micro-device taking the advantage of 3D- Printing and goes beyond the restriction in the material selection. The device's performances were tested in the fluids detection and in the evaluation of the cell concentrations. Additionally, the micro-device was used as a real-time two-phase fluids flow detector. The two-phases flows were successfully monitored in different experimental conditions, varying both hydrodynamic and optical external stimuli.
Collapse
Affiliation(s)
- Fabiana Cairone
- Department of Electrical Electronic and Computer Science Engineering, University of Catania, viale A. Doria 6, 95125, Catania, CT, Italy
| | - Santi Davi
- Department of Electrical Electronic and Computer Science Engineering, University of Catania, viale A. Doria 6, 95125, Catania, CT, Italy
| | - Giovanna Stella
- Department of Electrical Electronic and Computer Science Engineering, University of Catania, viale A. Doria 6, 95125, Catania, CT, Italy
| | - Francesca Guarino
- Department of Biomedical and Biotechnological Science, University of Catania, viale A. Doria 6, 95125, Catania, CT, Italy
| | - Giuseppe Recca
- National Research Council of Italy - IPCB Institute for Polymers, Composites and Biomaterials, via Gaifami 18, 95126, Catania, CT, Italy
| | - Gianluca Cicala
- Department of Civil Engineering and Architecture, University of Catania, viale A. Doria 6, 95125, Catania, CT, Italy
| | - Maide Bucolo
- Department of Electrical Electronic and Computer Science Engineering, University of Catania, viale A. Doria 6, 95125, Catania, CT, Italy.
| |
Collapse
|
27
|
Voronin DV, Kozlova AA, Verkhovskii RA, Ermakov AV, Makarkin MA, Inozemtseva OA, Bratashov DN. Detection of Rare Objects by Flow Cytometry: Imaging, Cell Sorting, and Deep Learning Approaches. Int J Mol Sci 2020; 21:E2323. [PMID: 32230871 PMCID: PMC7177904 DOI: 10.3390/ijms21072323] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2019] [Revised: 02/25/2020] [Accepted: 03/25/2020] [Indexed: 12/14/2022] Open
Abstract
Flow cytometry nowadays is among the main working instruments in modern biology paving the way for clinics to provide early, quick, and reliable diagnostics of many blood-related diseases. The major problem for clinical applications is the detection of rare pathogenic objects in patient blood. These objects can be circulating tumor cells, very rare during the early stages of cancer development, various microorganisms and parasites in the blood during acute blood infections. All of these rare diagnostic objects can be detected and identified very rapidly to save a patient's life. This review outlines the main techniques of visualization of rare objects in the blood flow, methods for extraction of such objects from the blood flow for further investigations and new approaches to identify the objects automatically with the modern deep learning methods.
Collapse
Affiliation(s)
- Denis V. Voronin
- Laboratory of Biomedical Photoacoustics, Saratov State University, 410012 Saratov, Russia
- Department of Physical and Colloid Chemistry, National University of Oil and Gas (Gubkin University), 119991 Moscow, Russia
| | - Anastasiia A. Kozlova
- Laboratory of Biomedical Photoacoustics, Saratov State University, 410012 Saratov, Russia
| | - Roman A. Verkhovskii
- Laboratory of Biomedical Photoacoustics, Saratov State University, 410012 Saratov, Russia
- School of Urbanistics, Civil Engineering and Architecture, Yuri Gagarin State Technical University of Saratov, 410054 Saratov, Russia
| | - Alexey V. Ermakov
- Laboratory of Biomedical Photoacoustics, Saratov State University, 410012 Saratov, Russia
- Department of Biomedical Engineering, I. M. Sechenov First Moscow State Medical University, 119991 Moscow, Russia
| | - Mikhail A. Makarkin
- Laboratory of Biomedical Photoacoustics, Saratov State University, 410012 Saratov, Russia
| | - Olga A. Inozemtseva
- Laboratory of Biomedical Photoacoustics, Saratov State University, 410012 Saratov, Russia
| | - Daniil N. Bratashov
- Laboratory of Biomedical Photoacoustics, Saratov State University, 410012 Saratov, Russia
| |
Collapse
|
28
|
Adams TNG, Jiang AYL, Mendoza NS, Ro CC, Lee DH, Lee AP, Flanagan LA. Label-free enrichment of fate-biased human neural stem and progenitor cells. Biosens Bioelectron 2020; 152:111982. [PMID: 32056730 PMCID: PMC8860404 DOI: 10.1016/j.bios.2019.111982] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2019] [Revised: 11/21/2019] [Accepted: 12/20/2019] [Indexed: 12/12/2022]
Abstract
Human neural stem and progenitor cells (hNSPCs) have therapeutic potential to treat neural diseases and injuries since they provide neuroprotection and differentiate into astrocytes, neurons, and oligodendrocytes. However, cultures of hNSPCs are heterogeneous, containing cells linked to distinct differentiated cell fates. HNSPCs that differentiate into astrocytes are of interest for specific neurological diseases, creating a need for approaches that can detect and isolate these cells. Astrocyte-biased hNSPCs differ from other cell types in electrophysiological properties, namely membrane capacitance, and we hypothesized that this could be used to enrich these cells using dielectrophoresis (DEP). We implemented a two-step DEP sorting scheme, consisting of analysis to define the optimal sorting frequency followed by separation of cells at that frequency, to test whether astrocyte-biased cells could be separated from the other cell types present in hNSPC cultures. We developed a novel device that increased sorting reproducibility and provided both enriched and depleted cell populations in a single sort. Astrocyte-biased cells were successfully enriched from hNSPC cultures by DEP sorting, making this the first study to use electrophysiological properties for label-free enrichment of human astrocyte-biased cells. Enriched astrocyte-biased human cells enable future experiments to determine the specific properties of these important cells and test their therapeutic efficacy in animal models of neurological diseases.
Collapse
Affiliation(s)
- Tayloria N G Adams
- Department of Chemical and Biomolecular Engineering, University of California, Irvine, Irvine, CA, 92697-2580, USA; Department of Neurology, University of California, Irvine, Irvine, CA, 92697-6750, USA; Sue & Bill Gross Stem Cell Research Center, University of California, Irvine, CA, 92697-1705, USA.
| | - Alan Y L Jiang
- Department of Biomedical Engineering, University of California, Irvine, Irvine, CA, 92697-2627, USA; Department of Neurology, University of California, Irvine, Irvine, CA, 92697-6750, USA; Sue & Bill Gross Stem Cell Research Center, University of California, Irvine, CA, 92697-1705, USA
| | - Nicolo S Mendoza
- Department of Neurology, University of California, Irvine, Irvine, CA, 92697-6750, USA; Sue & Bill Gross Stem Cell Research Center, University of California, Irvine, CA, 92697-1705, USA
| | - Clarissa C Ro
- Department of Neurology, University of California, Irvine, Irvine, CA, 92697-6750, USA; Sue & Bill Gross Stem Cell Research Center, University of California, Irvine, CA, 92697-1705, USA
| | - Do-Hyun Lee
- Department of Biomedical Engineering, University of California, Irvine, Irvine, CA, 92697-2627, USA
| | - Abraham P Lee
- Department of Biomedical Engineering, University of California, Irvine, Irvine, CA, 92697-2627, USA
| | - Lisa A Flanagan
- Department of Biomedical Engineering, University of California, Irvine, Irvine, CA, 92697-2627, USA; Department of Neurology, University of California, Irvine, Irvine, CA, 92697-6750, USA; Sue & Bill Gross Stem Cell Research Center, University of California, Irvine, CA, 92697-1705, USA; Department of Anatomy & Neurobiology, University of California, Irvine, Irvine, CA, 92697-4291, USA.
| |
Collapse
|
29
|
Kamyabi N, Abbasgholizadeh R, Maitra A, Ardekani A, Biswal SL, Grande-Allen KJ. Isolation and mutational assessment of pancreatic cancer extracellular vesicles using a microfluidic platform. Biomed Microdevices 2020; 22:23. [PMID: 32162067 DOI: 10.1007/s10544-020-00483-7] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
Cancer cells release extracellular vesicles known as extracellular vesicles (EVs), containing tumor-derived DNA, RNA and proteins within their cargo, into the circulation. Circulating tumor-derived extracellular vesicles (TEV) can be used in the context of serial "liquid biopsies" for early detection of cancer, for monitoring disease burden in patients, and for assessing recurrence in the post-resection setting. Nonetheless, isolating sufficient TEV by ultracentrifugation-based approaches, in order to enable molecular assessment of EVs cargo, can be an arduous, time-consuming process and is inconsistent in the context of yield and purity among institutions. Herein, we describe a microfluidic platform, which we have named MITEV (Microfluidic Isolation of Tumor-derived Extracellular Vesicles) for the rapid isolation of TEV from the plasma of pancreatic cancer patients. The device, which has ~100,000 pillars placed in a zigzag pattern and is coated with antibodies against generic EV surface proteins (anti-CD63, -CD9, and -CD81 antibodies) or the TEV specific anti-Epithelial Cell Adhesion Molecule (EpCAM) antibody, is capable of high-throughput EVs isolation and yields sufficient DNA (total of ~2-14 ng from 2-ml plasma) for downstream genomic analysis. Using two independent quantitative platforms, droplet digital polymerase chain reaction (ddPCR) and molecular barcoding using nanoString nCounter® technology, we can reliably identify KRAS mutations within isolated TEV of treatment-naïve metastatic pancreatic cancer patients. Our study suggests that the MITEV device can be used for point-of-care applications, such as in the context of monitoring residual or recurrent tumor presence in pancreatic cancer patients undergoing therapy.
Collapse
Affiliation(s)
- Nabiollah Kamyabi
- Department of Bioengineering, Rice University, 6566 Main St, Houston, TX, 77030, USA.
- Department of Translational Molecular Pathology, The University of Texas MD Anderson Cancer Center, Houston, TX, USA.
- Sheikh Ahmed Pancreatic Cancer Research Center, The University of Texas MD Anderson Cancer Center, Houston, TX, USA.
| | - Reza Abbasgholizadeh
- Sheikh Ahmed Pancreatic Cancer Research Center, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
- Department of Pathology, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Anirban Maitra
- Department of Translational Molecular Pathology, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
- Sheikh Ahmed Pancreatic Cancer Research Center, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Arezoo Ardekani
- Department of Mechanical Engineering, Purdue University, West Lafayette, IN, USA
| | - Sibani L Biswal
- Department of Chemical and Biomolecular Engineering, Rice University, Houston, TX, USA
| | - K Jane Grande-Allen
- Department of Bioengineering, Rice University, 6566 Main St, Houston, TX, 77030, USA
| |
Collapse
|
30
|
Jin L, Zhao W, Zhang J, Chen W, Xie T, Wang L, Fan W, Xie S, Shen J, Zheng H, Hu W, Wei Q, Dong M, Wang Q, Shen J, Liu Y. Evaluation of the diagnostic value of circulating tumor cells with CytoSorter ® CTC capture system in patients with breast cancer. Cancer Med 2020; 9:1638-1647. [PMID: 31908156 PMCID: PMC7050089 DOI: 10.1002/cam4.2825] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2019] [Revised: 11/11/2019] [Accepted: 12/19/2019] [Indexed: 02/05/2023] Open
Abstract
PURPOSE In this study, we aimed to investigate the viability of utilizing CytoSorter® system to detect circulating tumor cells (CTCs) and to evaluate the diagnostic value of CTCs in breast cancer (BC). METHODS A total of 366 females patients suspected of having BC and 30 healthy female volunteers were enrolled in this study. CTCs were enriched by CytoSorter® , a microfluidic-based CTCs capturing platform. CTC detection was performed before operation or biopsy. Based on the biopsy results, patients were divided into two groups, namely patients with BC and patients with benign breast diseases (BBD). Patients with BBD and healthy volunteers were serving as controls. The correlation between CTC enumeration and patients' clinicopathological characteristics was evaluated. The receiver operating characteristic (ROC) curve was plotted to assess the diagnostic potency of CytoSorter® system in BC. RESULTS Based on the biopsy results, 130 BC patients at different cancer stages and 236 patients with BBD were enrolled in the study. Seven subjects were dropped out from the study. CTCs were detected in 109 of 128 BC patients, in one of 29 healthy volunteers, and in 37 of 232 patients with BBD. Maximum CTC counts detected in BC patients, healthy volunteers, and patients with BBD were 8, 1, and 4, respectively. Statistical analysis showed CTCs could be used to distinguish BC patients from healthy volunteers and patients with BBD (P < .0001). Circulating tumor cells were statistically associated with patients' cancer stage (P = .0126), tumor size (tumor node metastasis [TNM] T stage, P = .0253), cancer type (invasive vs noninvasive, P = .0141), and lymph node metastasis (P = .0436). More CTCs were found in patients at advanced cancer stage or TNM T stage and in patients with invasive tumor or lymph node metastasis. Furthermore, CTC detection rates in BC patients at Tis and T1-4 stages were 50%, 81.67%, 91.07%, 100%, and 100%, respectively. When the CTC cut-off value was set to 2, the ROC curve gave an area under the curve (AUC) of 0.86 with a specificity and sensitivity of 95.4% and 76.56%, respectively. Taken together, CTCs could be used as a diagnostic aid in assistance of cancer screening and staging. CONCLUSION Circulating tumor cells were successfully isolated in BC patients using CytoSorter® system. CTCs can be used to differentiate BC patients from the patients with BBD or healthy volunteers, and as a diagnostic aid for early cancer diagnosis and cancer staging.
Collapse
Affiliation(s)
- Lidan Jin
- Department of Surgical OncologySir Run Run Shaw Hospital Affiliated to Zhejiang University College of MedicineHangzhouChina
| | - Wenhe Zhao
- Department of Surgical OncologySir Run Run Shaw Hospital Affiliated to Zhejiang University College of MedicineHangzhouChina
| | - Jun Zhang
- Department of Clinical LaboratorySir Run Run Shaw Hospital Affiliated to Zhejiang University College of MedicineHangzhouChina
| | - Wenjun Chen
- Department of Surgical OncologySir Run Run Shaw Hospital Affiliated to Zhejiang University College of MedicineHangzhouChina
| | - Tan Xie
- Department of NursingSir Run Run Shaw Hospital Affiliated to Zhejiang University College of MedicineHangzhouChina
| | - Linbo Wang
- Department of Surgical OncologySir Run Run Shaw Hospital Affiliated to Zhejiang University College of MedicineHangzhouChina
| | | | - Shuduo Xie
- Department of Surgical OncologySir Run Run Shaw Hospital Affiliated to Zhejiang University College of MedicineHangzhouChina
| | - Jianguo Shen
- Department of Surgical OncologySir Run Run Shaw Hospital Affiliated to Zhejiang University College of MedicineHangzhouChina
| | - Heming Zheng
- Department of Surgical OncologySir Run Run Shaw Hospital Affiliated to Zhejiang University College of MedicineHangzhouChina
| | - Wenxian Hu
- Department of Surgical OncologySir Run Run Shaw Hospital Affiliated to Zhejiang University College of MedicineHangzhouChina
| | - Qun Wei
- Department of Surgical OncologySir Run Run Shaw Hospital Affiliated to Zhejiang University College of MedicineHangzhouChina
| | - Minjun Dong
- Department of Surgical OncologySir Run Run Shaw Hospital Affiliated to Zhejiang University College of MedicineHangzhouChina
| | - Qinchun Wang
- Department of Surgical OncologySir Run Run Shaw Hospital Affiliated to Zhejiang University College of MedicineHangzhouChina
| | - Jun Shen
- Department of Surgical OncologySir Run Run Shaw Hospital Affiliated to Zhejiang University College of MedicineHangzhouChina
| | - Yongcheng Liu
- Department of Surgical OncologySir Run Run Shaw Hospital Affiliated to Zhejiang University College of MedicineHangzhouChina
| |
Collapse
|
31
|
Feng J, Mo J, Zhang A, Liu D, Zhou L, Hang T, Yang C, Wu Q, Xia D, Wen R, Yang J, Feng Y, Huang Y, Hu N, He G, Xie X. Antibody-free isolation and regulation of adherent cancer cells via hybrid branched microtube-sandwiched hydrodynamic system. Nanoscale 2020; 12:5103-5113. [PMID: 32068774 DOI: 10.1039/d0nr00153h] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
The detection of circulating tumor cells (CTCs) has achieved promising progress for early diagnosis and disease analysis. Microfluidic chip techniques have recently promoted the technologies of CTC sorting and analysis, yet seldom can the microfluidic chips for CTC enrichment via antibody-free capture provide in situ regulation of both extracellular and intracellular activity, which would be advantageous for cell-based pharmaceutical therapeutics and screening. Herein, we have demonstrated a hybrid TiO2/ZnO branched microtube array (HBMTA)-sandwiched hydrodynamic device that integrates the multiple functions of selective enrichment of adherent tumor cells in an antibody-free manner and in situ delivery to the extracellular and intracellular spaces of the enriched tumor cells. More than 90% cancer cells were enriched on the device due to their preferential adhesion with the nano-branches of HBMTA, while more than 91% blood cells were eliminated from the device by constant hydrodynamic fluid shearing. For in situ regulation, temporally and spatially controlled extracellular delivery to the enriched tumor cells could be precisely achieved through the hollow structures of the HBMTA. In addition, reagents (e.g. propidium iodide) could be delivered into the intracellular spaces of enriched tumor cells by coupling an electric field to nondestructively perforate the cell membrane. Our study not only offers a promising and facile strategy for antibody-free isolation of tumor cells, but also provides unique opportunities to facilitate cancer research, including antitumor drug screening and personalized therapeutics.
Collapse
Affiliation(s)
- Jianming Feng
- State Key Laboratory of Optoelectronic Materials and Technologies, Guangdong Province Key Laboratory of Display Material and Technology, School of Electronics and Information Technology; The First Affiliated Hospital of Sun Yat-Sen University, Sun Yat-Sen University, Guangzhou 510006, China.
| | - Jingshan Mo
- State Key Laboratory of Optoelectronic Materials and Technologies, Guangdong Province Key Laboratory of Display Material and Technology, School of Electronics and Information Technology; The First Affiliated Hospital of Sun Yat-Sen University, Sun Yat-Sen University, Guangzhou 510006, China.
| | - Aihua Zhang
- State Key Laboratory of Optoelectronic Materials and Technologies, Guangdong Province Key Laboratory of Display Material and Technology, School of Electronics and Information Technology; The First Affiliated Hospital of Sun Yat-Sen University, Sun Yat-Sen University, Guangzhou 510006, China.
| | - Di Liu
- Pritzker School of Medicine, University of Chicago, Chicago, Illinois 60637, USA
| | - Lingfei Zhou
- State Key Laboratory of Optoelectronic Materials and Technologies, Guangdong Province Key Laboratory of Display Material and Technology, School of Electronics and Information Technology; The First Affiliated Hospital of Sun Yat-Sen University, Sun Yat-Sen University, Guangzhou 510006, China.
| | - Tian Hang
- State Key Laboratory of Optoelectronic Materials and Technologies, Guangdong Province Key Laboratory of Display Material and Technology, School of Electronics and Information Technology; The First Affiliated Hospital of Sun Yat-Sen University, Sun Yat-Sen University, Guangzhou 510006, China.
| | - Cheng Yang
- State Key Laboratory of Optoelectronic Materials and Technologies, Guangdong Province Key Laboratory of Display Material and Technology, School of Electronics and Information Technology; The First Affiliated Hospital of Sun Yat-Sen University, Sun Yat-Sen University, Guangzhou 510006, China.
| | - Qianni Wu
- State Key Laboratory of Optoelectronic Materials and Technologies, Guangdong Province Key Laboratory of Display Material and Technology, School of Electronics and Information Technology; The First Affiliated Hospital of Sun Yat-Sen University, Sun Yat-Sen University, Guangzhou 510006, China.
| | - Dehua Xia
- School of Environmental Science and Engineering, Sun Yat-Sen University, Guangzhou 510275, China
| | - Rui Wen
- State Key Laboratory of Optoelectronic Materials and Technologies, Guangdong Province Key Laboratory of Display Material and Technology, School of Electronics and Information Technology; The First Affiliated Hospital of Sun Yat-Sen University, Sun Yat-Sen University, Guangzhou 510006, China.
| | - Jiang Yang
- State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Sun Yat-Sen University Cancer Center, Guangzhou 510060, China
| | - Yuping Feng
- School of Materials Science and Engineering, Harbin Institute of Technology (Shenzhen), Shenzhen 518055, China
| | - Yan Huang
- School of Materials Science and Engineering, Harbin Institute of Technology (Shenzhen), Shenzhen 518055, China
| | - Ning Hu
- State Key Laboratory of Optoelectronic Materials and Technologies, Guangdong Province Key Laboratory of Display Material and Technology, School of Electronics and Information Technology; The First Affiliated Hospital of Sun Yat-Sen University, Sun Yat-Sen University, Guangzhou 510006, China.
| | - Gen He
- State Key Laboratory of Optoelectronic Materials and Technologies, Guangdong Province Key Laboratory of Display Material and Technology, School of Electronics and Information Technology; The First Affiliated Hospital of Sun Yat-Sen University, Sun Yat-Sen University, Guangzhou 510006, China.
| | - Xi Xie
- State Key Laboratory of Optoelectronic Materials and Technologies, Guangdong Province Key Laboratory of Display Material and Technology, School of Electronics and Information Technology; The First Affiliated Hospital of Sun Yat-Sen University, Sun Yat-Sen University, Guangzhou 510006, China.
| |
Collapse
|
32
|
Abstract
Cell separation and patterning are of interest to several biological and medical applications including rare cell isolation and co-culture models. Numerous microfluidic devices have been used for cell separation and patterning, however, the typical closed channel configuration comes with challenges and limitations. Here, we report a dielectrophoresis (DEP) enabled microelectrofluidic probe (MeFP) for sequentially separating and patterning of mammalian cells in an open microfluidic system. The MeFP is a microfluidic probe with injection and aspiration apertures, integrated with an array of micro-hump electrodes on its tip. Aligning the MeFP parallel, and in close proximity, to a conductive substrate forms a vertical pin-plate electrode configuration that allows for an integration of DEP forces within the hydrodynamic flow confinement. Upon confining a heterogeneous cell suspension in the gap between the MeFP and the substrate, target cells are selectively captured on the micro-hump electrodes using positive DEP forces, and then deposited on the substrate in defined patterns. Characterization of the MeFP showed an increase in cell-capture efficiency when the MeFP is of a higher microfluidic multipole configuration. Separation of cancer cells from T lymphocytes was demonstrated with capture purity as high as 89.6%. Deposited patterns of isolated cells match the numerically calculated particle trajectories of the evaluated microfluidic multipoles configurations. By adjusting the flow configuration of the MeFP, we show that the patterned co-culture of two different cell types can be dynamically controlled for homotypic and heterotypic cell interaction studies. This work presents a multifunctional microfluidic tool that bio-fabricates selective multicellular patterns directly on an open substrate without the need for confined conduits.
Collapse
Affiliation(s)
- Ayoola T Brimmo
- Engineering Division, New York University Abu Dhabi, Abu Dhabi, United Arab Emirates. and Department of Mechanical and Aerospace Engineering, New York University, NY, USA
| | - Anoop Menachery
- Engineering Division, New York University Abu Dhabi, Abu Dhabi, United Arab Emirates.
| | - Mohammad A Qasaimeh
- Engineering Division, New York University Abu Dhabi, Abu Dhabi, United Arab Emirates. and Department of Mechanical and Aerospace Engineering, New York University, NY, USA
| |
Collapse
|
33
|
Richard C, Fakhfouri A, Colditz M, Striggow F, Kronstein-Wiedemann R, Tonn T, Medina-Sánchez M, Schmidt OG, Gemming T, Winkler A. Blood platelet enrichment in mass-producible surface acoustic wave (SAW) driven microfluidic chips. Lab Chip 2019; 19:4043-4051. [PMID: 31723953 DOI: 10.1039/c9lc00804g] [Citation(s) in RCA: 30] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
The ability to separate specific biological components from cell suspensions is indispensable for liquid biopsies, and for personalized diagnostics and therapy. This paper describes an advanced surface acoustic wave (SAW) based device designed for the enrichment of platelets (PLTs) from a dispersion of PLTs and red blood cells (RBCs) at whole blood concentrations, opening new possibilities for diverse applications involving cell manipulation with high throughput. The device is made of patterned SU-8 photoresist that is lithographically defined on the wafer scale with a new proposed methodology. The blood cells are initially focused and subsequently separated by an acoustic radiation force (ARF) applied through standing SAWs (SSAWs). By means of flow cytometric analysis, the PLT concentration factor was found to be 7.7, and it was proven that the PLTs maintain their initial state. A substantially higher cell throughput and considerably lower applied powers than comparable devices from literature were achieved. In addition, fully coupled 3D numerical simulations based on SAW wave field measurements were carried out to anticipate the coupling of the wave field into the fluid, and to obtain the resulting pressure field. A comparison to the acoustically simpler case of PDMS channel walls is given. The simulated results show an ideal match to the experimental observations and offer the first insights into the acoustic behavior of SU-8 as channel wall material. The proposed device is compatible with current (Lab-on-a-Chip) microfabrication techniques allowing for mass-scale, reproducible chip manufacturing which is crucial to push the technology from lab-based to real-world applications.
Collapse
Affiliation(s)
- Cynthia Richard
- Leibniz-IFW Dresden, Helmholtzstr. 20, 01069 Dresden, Germany.
| | | | - Melanie Colditz
- Leibniz-IFW Dresden, Helmholtzstr. 20, 01069 Dresden, Germany.
| | | | - Romy Kronstein-Wiedemann
- Experimentelle Transfusionsmedizin, Medizinische Fakultät Carl Gustav Carus der Technischen Universität Dresden/DRK-Blutspendedienst Nord-Ost gGmbH, Blasewitzer str. 68/70, 01370 Dresden, Germany
| | - Torsten Tonn
- Experimentelle Transfusionsmedizin, Medizinische Fakultät Carl Gustav Carus der Technischen Universität Dresden/DRK-Blutspendedienst Nord-Ost gGmbH, Blasewitzer str. 68/70, 01370 Dresden, Germany
| | | | | | - Thomas Gemming
- Leibniz-IFW Dresden, Helmholtzstr. 20, 01069 Dresden, Germany.
| | - Andreas Winkler
- Leibniz-IFW Dresden, Helmholtzstr. 20, 01069 Dresden, Germany.
| |
Collapse
|
34
|
Landzo E, Aganovic-Musinovic I, Bevanda D, Bogut A, Bevanda M, Bevanda Glibo D, Pravdić D. Type of Cell Separator, Fenwal Amicus vs Fresenius Com Tec, May Influence the Corpuscular Elements Value of the Donor`s Blood. Psychiatr Danub 2019; 31:821-825. [PMID: 32160178] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
INTRODUCTION During the plateletpheresis procedure the number of thrombocytes in the donor's blood significantly decreases, and the levels of the hematocrit (HCT), hemoglobin (Hgb), and leukocyte (WBC) diminish as well. Influence of the cell separator is one of the factors that affects the levels of HCT, Hgb and WBC. In this study, the goal was to determine the value difference of HCT, Hgb, WBC, and platelets after the platelet pheresis process between performance on Fenwal AMICUS and on Fresenius Com Tec. DONORS AND METHODS The criteria for participation: male in the age range of 25-45. We have formed two groups: for both groups - 180 separations were performed on 60 participants were the values of hematocrits, concentration of hemoglobin and number of leukocytes were established before and after separation using the double-needle continuous flow cell separation (DN-CFCS) on two different devices, Fenwal AMICUS device and the Fresenius Com Tec. device. To confirm the statistical differences we have used Student t-test for independent or dependent samples, as well as Mann-Whitney U test as non-parametric alternative. To compare differences between the values of four parameters (P1-P2) from two groups (using two devices - Fenwal AMICUS and Fresenius Com Tec) The possibility of errors were accepted for α<0.05, and the difference between groups as statistical relevant were accepted for p<0.05. RESULTS Statistically significant lower values were noted for all researched parameters after separation on both devices. The statistically significant average values for Hct, Hgb and WBC obtained between two devices, were less than 0.05 (p=0.05). For the platelets (Plt) there was no statistical significant difference (p>0.05 - α=0.05), between average level obtained using either Fenwal AMICUS or Frazenius Com Tec. CONCLUSION The type of cell separator had the influence on the decrease value of the observed parameters.
Collapse
Affiliation(s)
- Elvedin Landzo
- Institute of Transfusion Medicine F B&H, Cekalusa 86, Sarajevo, Bosnia and Herzegovina,
| | | | | | | | | | | | | |
Collapse
|
35
|
Zheng Y, Li Q, Hu W, Liao J, Zheng G, Su M. Whole slide imaging of circulating tumor cells captured on a capillary microchannel device. Lab Chip 2019; 19:3796-3803. [PMID: 31621763 DOI: 10.1039/c9lc00412b] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Liquid biopsy with circulating tumor cells (CTCs) can aid in cancer detection at early stages and determine whether a certain treatment is effective or not. However, existing CTC techniques focus on one or two aspects of CTC management including sampling, enrichment, enumeration, and treatment selection. This paper reports an integrated capillary microchannel device that allows efficient capturing of CTCs with a wide microchannel, rapid enumeration of captured CTCs with whole slide cell imaging, and in situ drug testing with captured CTCs. Blood is drawn into the microchannel whose height is appropriate to the diameter of cancer cells, while its width is a thousand times larger than the diameter of cancer cells. The inner bottom surface of the microchannel is modified with long chain polymers that have cell adhesive ends to efficiently capture CTCs from blood. With this design, cells including CTCs are forced to move through the polymer coated microchannel, and the chance of cell adhesive ends interacting with specific antigens overexpressed on surfaces of cancer cells is significantly enhanced without a channel blockage issue. Captured CTCs are enumerated with a whole slide imaging platform via dual LED autofocusing technology then exposed to anti-cancer drugs, followed by live/dead assay and fluorescence imaging. Given its straightforward, easy and powerless operation, this device with whole slide imaging will be useful for cancer diagnosis, prognosis and point-of-care treatments.
Collapse
Affiliation(s)
- Yiting Zheng
- Department of Chemical Engineering, Northeastern University, Boston, Massachusetts 02115, USA.
| | - Qingxuan Li
- Department of Chemical Engineering, Northeastern University, Boston, Massachusetts 02115, USA.
| | - Weike Hu
- Department of Chemical Engineering, Northeastern University, Boston, Massachusetts 02115, USA.
| | - Jun Liao
- Department of Biomedical Engineering, University of Connecticut, Storrs, Connecticut 06269, USA
| | - Guoan Zheng
- Department of Biomedical Engineering, University of Connecticut, Storrs, Connecticut 06269, USA
| | - Ming Su
- Department of Chemical Engineering, Northeastern University, Boston, Massachusetts 02115, USA.
| |
Collapse
|
36
|
Wang Y, Wang J, Zhou C, Ding G, Chen M, Zou J, Wang G, Kang Y, Pan X. A Microfluidic Prototype System towards Microalgae Cell Separation, Treatment and Viability Characterization. Sensors (Basel) 2019; 19:s19224940. [PMID: 31766178 PMCID: PMC6891504 DOI: 10.3390/s19224940] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/23/2019] [Revised: 10/31/2019] [Accepted: 11/04/2019] [Indexed: 12/11/2022]
Abstract
There are a huge number, and abundant types, of microalgae in the ocean; and most of them have various values in many fields, such as food, medicine, energy, feed, etc. Therefore, how to identify and separation of microalgae cells quickly and effectively is a prerequisite for the microalgae research and utilization. Herein, we propose a microfluidic system that comprised microalgae cell separation, treatment and viability characterization. Specifically, the microfluidic separation function is based on the principle of deterministic lateral displacement (DLD), which can separate various microalgae species rapidly by their different sizes. Moreover, a concentration gradient generator is designed in this system to automatically produce gradient concentrations of chemical reagents to optimize the chemical treatment of samples. Finally, a single photon counter was used to evaluate the viability of treated microalgae based on laser-induced fluorescence from the intracellular chlorophyll of microalgae. To the best of our knowledge, this is the first laboratory prototype system combining DLD separation, concentration gradient generator and chlorophyll fluorescence detection technology for fast analysis and treatment of microalgae using marine samples. This study may inspire other novel applications of micro-analytical devices for utilization of microalgae resources, marine ecological environment protection and ship ballast water management.
Collapse
Affiliation(s)
- Yanjuan Wang
- Center of Microfluidic and Optoelectronic Sensing, Dalian Maritime University, Dalian 116026, China; (Y.W.); (C.Z.); (G.D.); (M.C.); (J.Z.); (G.W.)
- College of Information Science and Technology, Dalian Maritime University, Dalian 116026, China
- Software Technology Institute, Dalian Jiaotong University, Dalian 116028, China
| | - Junsheng Wang
- Center of Microfluidic and Optoelectronic Sensing, Dalian Maritime University, Dalian 116026, China; (Y.W.); (C.Z.); (G.D.); (M.C.); (J.Z.); (G.W.)
- College of Information Science and Technology, Dalian Maritime University, Dalian 116026, China
- Navigation College, Guangdong Ocean University, Zhanjiang 524088, China
- Correspondence:
| | - Chen Zhou
- Center of Microfluidic and Optoelectronic Sensing, Dalian Maritime University, Dalian 116026, China; (Y.W.); (C.Z.); (G.D.); (M.C.); (J.Z.); (G.W.)
- College of Information Science and Technology, Dalian Maritime University, Dalian 116026, China
| | - Gege Ding
- Center of Microfluidic and Optoelectronic Sensing, Dalian Maritime University, Dalian 116026, China; (Y.W.); (C.Z.); (G.D.); (M.C.); (J.Z.); (G.W.)
- College of Information Science and Technology, Dalian Maritime University, Dalian 116026, China
| | - Mengmeng Chen
- Center of Microfluidic and Optoelectronic Sensing, Dalian Maritime University, Dalian 116026, China; (Y.W.); (C.Z.); (G.D.); (M.C.); (J.Z.); (G.W.)
- College of Information Science and Technology, Dalian Maritime University, Dalian 116026, China
| | - Jiang Zou
- Center of Microfluidic and Optoelectronic Sensing, Dalian Maritime University, Dalian 116026, China; (Y.W.); (C.Z.); (G.D.); (M.C.); (J.Z.); (G.W.)
- College of Information Science and Technology, Dalian Maritime University, Dalian 116026, China
| | - Ge Wang
- Center of Microfluidic and Optoelectronic Sensing, Dalian Maritime University, Dalian 116026, China; (Y.W.); (C.Z.); (G.D.); (M.C.); (J.Z.); (G.W.)
- College of Information Science and Technology, Dalian Maritime University, Dalian 116026, China
| | - Yuejun Kang
- School of Materials and Energy, Southwest University, Chongqing 400715, China;
| | - Xinxiang Pan
- College of Electronics and Information Engineering, Guangdong Ocean University, Zhanjiang 524088, China;
| |
Collapse
|
37
|
Gentile P, Calabrese C, De Angelis B, Pizzicannella J, Kothari A, Garcovich S. Impact of the Different Preparation Methods to Obtain Human Adipose-Derived Stromal Vascular Fraction Cells (AD-SVFs) and Human Adipose-Derived Mesenchymal Stem Cells (AD-MSCs): Enzymatic Digestion Versus Mechanical Centrifugation. Int J Mol Sci 2019; 20:E5471. [PMID: 31684107 PMCID: PMC6862236 DOI: 10.3390/ijms20215471] [Citation(s) in RCA: 63] [Impact Index Per Article: 12.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2019] [Revised: 10/27/2019] [Accepted: 11/01/2019] [Indexed: 12/16/2022] Open
Abstract
Autologous therapies using adipose-derived stromal vascular fraction (AD-SVFs) and adult adipose-derived mesenchymal stem cells (AD-MSCs) warrant careful preparation of the harvested adipose tissue. Currently, no standardized technique for this preparation exists. Processing quantitative standards (PQSs) define manufacturing quantitative variables (such as time, volume, and pressure). Processing qualitative standards (PQLSs) define the quality of the materials and methods in manufacturing. The purpose of the review was to use PQSs and PQLSs to report the in vivo and in vitro results obtained by different processing kits that use different procedures (enzymatic vs. non-enzymatic) to isolate human AD-SVFs/AD-MSCs. PQSs included the volume of fat tissue harvested and reagents used, the time/gravity of centrifugation, and the time, temperature, and tilt level/speed of incubation and/or centrifugation. PQLSs included the use of a collagenase, a processing time of 30 min, kit weight, transparency of the kit components, the maintenance of a closed sterile processing environment, and the use of a small centrifuge and incubating rocker. Using a kit with the PQSs and PQLSs described in this study enables the isolation of AD-MSCs that meet the consensus quality criteria. As the discovery of new critical quality attributes (CQAs) of AD-MSCs evolve with respect to purity and potency, adjustments to these benchmark PQSs and PQLs will hopefully isolate AD-MSCs of various CQAs with greater reproducibility, quality, and safety. Confirmatory studies will no doubt need to be completed.
Collapse
Affiliation(s)
- Pietro Gentile
- Surgical Science Department, Plastic and Reconstructive Surgery, University of Rome "Tor Vergata", 00179 Rome, Italy.
| | | | - Barbara De Angelis
- Surgical Science Department, Plastic and Reconstructive Surgery, University of Rome "Tor Vergata", 00179 Rome, Italy.
| | | | - Ashutosh Kothari
- Chief of Breast Surgery Unit, Guy's Hospital, Guy's and St. Thomas' NHS Foundation Trust, London SE1 9RT, UK.
| | - Simone Garcovich
- Institute of Dermatology, F. Policlinico Gemelli IRCSS, Università Cattolica del Sacro Cuore, 00168 Rome, Italy.
| |
Collapse
|
38
|
Ren Q, Jiang C, Liu J. CFDA-SE Combined with MACSiBeads™ Particles to Evaluate the Inhibitory Effect of Treg Cells in vitro. Ann Clin Lab Sci 2019; 49:740-747. [PMID: 31882424] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
OBJECTIVE To explore the application of carboxyfluorescein diacetate succinimidyl ester (CFDA-SE) and MACSiBeads™ Particles within in vitro suppression assays of regulatory T (Treg) cells. METHODS CD4+CD25+ Treg cells and CD8+ T cells were sorted using magnetically activated cell sorting. CD8+ T cells were subjected to CFDA-SE staining to determine their optimal staining concentration. MACSi-Beads™ Particles, a component of the Treg expansion kit, were used as stimulators in suppression assays. Five experimental groups were set based on the condition of MACSiBeads™ Particles, CFDA-SE staining and cell composition of co-culture system, which were stimulated CD8+ cells without CFDA-SE staining, unstimulated CD8+ cells with CFDA-SE staining, stimulated CD8+ cells with CFDA-SE staining, co-cultured with Treg cells at a ratio of 1:0.25, 1:0.125 and 1:0, respectively. Flow cytometry was performed using the BD FACS Canto™ and flow data was analyzed using FCS Express 4 Plus software. RESULTS CFSE fluorescence intensity correlated with cell type and culture time. The final CFDA-SE staining concentration was 0.5μM. Within in vitro suppression assays, Treg cells showed a significant inhibitory effect on the proliferation of CD8+ T cells increasing as its concentration increased. CONCLUSION CFDA-SE combined with MACSiBeads™ Particles can be used to evaluate the in vitro inhibition effect of Treg cells.
Collapse
Affiliation(s)
- Qingqi Ren
- Department of Hepatobiliary and Pancreatic Surgery, Peking University Shenzhen Hospital, Shenzhen, China
| | - Chunlin Jiang
- Department of Medical Ultrasonics, Institute of Diagnostic and Interventional Ultrasound, the First Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
- Division of Interventional Ultrasound, the First Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - Jikui Liu
- Department of Hepatobiliary and Pancreatic Surgery, Peking University Shenzhen Hospital, Shenzhen, China
| |
Collapse
|
39
|
Kurashina Y, Imashiro C, Hirano M, Kuribara T, Totani K, Ohnuma K, Friend J, Takemura K. Enzyme-free release of adhered cells from standard culture dishes using intermittent ultrasonic traveling waves. Commun Biol 2019; 2:393. [PMID: 31701022 PMCID: PMC6820801 DOI: 10.1038/s42003-019-0638-5] [Citation(s) in RCA: 34] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2018] [Accepted: 09/27/2019] [Indexed: 11/20/2022] Open
Abstract
Cell detachment is essential in culturing adherent cells. Trypsinization is the most popular detachment technique, even though it reduces viability due to the damage to the membrane and extracellular matrix. Avoiding such damage would improve cell culture efficiency. Here we propose an enzyme-free cell detachment method that employs the acoustic pressure, sloshing in serum-free medium from intermittent traveling wave. This method detaches 96.2% of the cells, and increases its transfer yield to 130% of conventional methods for 48 h, compared to the number of cells detached by trypsinization. We show the elimination of trypsinization reduces cell damage, improving the survival of the detached cells. Acoustic pressure applied to the cells and media sloshing from the intermittent traveling wave were identified as the most important factors leading to cell detachment. This proposed method will improve biopharmaceutical production by expediting the amplification of tissue-cultured cells through a more efficient transfer process.
Collapse
Affiliation(s)
- Yuta Kurashina
- Department of Mechanical Engineering, Faculty of Science and Technology, Keio University, 3-14-1 Hiyoshi, Kohoku-ku, Yokohama 223-8522 Japan
- Department of Materials Science and Engineering, School of Materials and Chemical Technology, Tokyo Institute of Technology, 4259 Nagatsutacho, Midori-ku, Yokohama, 226-8503 Japan
| | - Chikahiro Imashiro
- School of Science for Open and Environmental Systems, Graduate School of Science and Technology, Keio University, 3-14-1 Hiyoshi, Kohoku-ku, Yokohama 223-8522 Japan
| | - Makoto Hirano
- Department of Materials and Life Science, Faculty of Science and Technology, Seikei University, 3-3-1 Kichijoji Kitamachi, Musashino, Tokyo 180-8633 Japan
- Department of Pharmacy, Yasuda Women’s University, 6-13-1 Yasuhigashi, Asaminami-ku, Hiroshima, 731-0153 Japan
| | - Taiki Kuribara
- Department of Materials and Life Science, Faculty of Science and Technology, Seikei University, 3-3-1 Kichijoji Kitamachi, Musashino, Tokyo 180-8633 Japan
| | - Kiichiro Totani
- Department of Materials and Life Science, Faculty of Science and Technology, Seikei University, 3-3-1 Kichijoji Kitamachi, Musashino, Tokyo 180-8633 Japan
| | - Kiyoshi Ohnuma
- Department of Science of Technology Innovation, Nagaoka University of Technology, 1603-1 Kamitomioka-cho, Nagaoka, Niigata 940-2188 Japan
- Department of Bioengineering, Nagaoka University of Technology, 1603-1 Kamitomioka-cho, Nagaoka, Niigata 940-2188 Japan
| | - James Friend
- Center for Medical Devices and Instrumentation, Department of Mechanical and Aerospace Engineering, University of California, San Diego, CA 92093 USA
| | - Kenjiro Takemura
- Department of Mechanical Engineering, Faculty of Science and Technology, Keio University, 3-14-1 Hiyoshi, Kohoku-ku, Yokohama 223-8522 Japan
| |
Collapse
|
40
|
Chu CH, Liu R, Ozkaya-Ahmadov T, Boya M, Swain BE, Owens JM, Burentugs E, Bilen MA, McDonald JF, Sarioglu AF. Hybrid negative enrichment of circulating tumor cells from whole blood in a 3D-printed monolithic device. Lab Chip 2019; 19:3427-3437. [PMID: 31553343 DOI: 10.1039/c9lc00575g] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
Abstract
Isolation and analysis of circulating tumor cells (CTCs) from blood samples present exciting opportunities for basic cancer research and personalized treatment of the disease. While microchip-based negative CTC enrichment offers both sensitive microfluidic cell screening and unbiased selection, conventional microchips are inherently limited by their capacity to deplete a large number of normal blood cells. In this paper, we use 3D printing to create a monolithic device that combines immunoaffinity-based microfluidic cell capture and a commercial membrane filter for negative enrichment of CTCs directly from whole blood. In our device, stacked layers of chemically-functionalized microfluidic channels capture millions of white blood cells (WBCs) in parallel without getting saturated and the leuko-depleted blood is post-filtered with a 3 μm-pore size membrane filter to eliminate anucleated blood cells. This hybrid negative enrichment approach facilitated direct extraction of viable CTCs off the chip on a membrane filter for downstream analysis. Immunofluorescence imaging of enriched cells showed ∼90% tumor cell recovery rate from simulated samples spiked with prostate, breast or ovarian cancer cells. We also demonstrated the feasibility of our approach for processing clinical samples by isolating prostate cancer CTCs directly from a 10 mL whole blood sample.
Collapse
Affiliation(s)
- Chia-Heng Chu
- School of Electrical and Computer Engineering, Georgia Institute of Technology, Atlanta, GA, USA.
| | | | | | | | | | | | | | | | | | | |
Collapse
|
41
|
Abstract
Little work has been done in microfluidics with separation of cells directly from whole blood, and the handful of microfluidic systems reported the literature offer only limited throughput. Yet high throughput is highly desirable to avoid degradation of samples, which can result in loss of information critical to disease diagnosis or monitoring. In this work, we investigated particle migration dynamics in whole blood flow at a single-particle level and subsequently successfully demonstrated the preferential enrichment of white blood cells (WBCs) in unprocessed whole blood flows flanking a buffer flow. Our in-depth investigation reveals a counter-intuitive, size-based migration of cells in whole blood flow and their tendency to accumulate in the regions near flow interfaces, which is employed for inherent enrichment of WBCs. More importantly, we found the strong size-dependent migration in blood flow stemming from the differentiated downstream velocity of particles, which inversely scales with particle size. Our new insights improve understanding of this counterintuitive microfluidics field, offering guidance for new device design to directly handle whole blood and to expand the applications to meet the real-world need for ultra-fast cell separation.
Collapse
Affiliation(s)
- Jian Zhou
- University of Illinois Cancer Center, Chicago, IL 60612, USA
| | | |
Collapse
|
42
|
Hu X, Zhu D, Chen M, Chen K, Liu H, Liu W, Yang Y. Precise and non-invasive circulating tumor cell isolation based on optical force using homologous erythrocyte binding. Lab Chip 2019; 19:2549-2556. [PMID: 31263813 DOI: 10.1039/c9lc00361d] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
Abstract
Precise isolation of circulating tumor cells (CTCs) is proved to be significant for early cancer diagnosis and downstream analysis. Most of the existing strategies yield low purity or cause unexpected damage to cells because of foreign material introduction. To avoid foreign material caused damage and achieve high efficiency simultaneously, this work presents an innovative strategy using tumor cell targeting molecules to bind homologous red blood cells (RBCs) with tumor cells, which results in obvious optical constant differences (both size and mean refractive index) between CC-RBCs (RBC conjugated CTCs) and other blood cells. Then the modified CTCs can be precisely separated under laser illumination in an optofluidic system. Experiments show that CTCs are efficiently modified with erythrocytes and finally isolated from blood at high purity (more than 92%) and a high recovery rate (over 90%). In the whole process, CTCs are proved to keep membrane and function integrity. The combination of homologous RBC binding and an optofluidic system will provide a convenient tool for cancer early diagnosis and treatment monitoring, which exhibits good performance in CTC non-invasive and precise isolation, thus showing great potential.
Collapse
Affiliation(s)
- Xuejia Hu
- School of Physics & Technology, Key Laboratory of Artificial Micro/Nano Structure of Ministry of Education, Wuhan University, Wuhan 430072, China. and Shenzhen Research Institute, Wuhan University, Shenzhen 518000, China
| | - Daoming Zhu
- School of Physics & Technology, Key Laboratory of Artificial Micro/Nano Structure of Ministry of Education, Wuhan University, Wuhan 430072, China.
| | - Ming Chen
- Department of Laboratory Medicine, Zhongnan Hospital of Wuhan University, Wuhan University, Wuhan, 430072, China
| | - Keke Chen
- School of Physics & Technology, Key Laboratory of Artificial Micro/Nano Structure of Ministry of Education, Wuhan University, Wuhan 430072, China.
| | - Hailiang Liu
- School of Physics & Technology, Key Laboratory of Artificial Micro/Nano Structure of Ministry of Education, Wuhan University, Wuhan 430072, China.
| | - Wei Liu
- School of Physics & Technology, Key Laboratory of Artificial Micro/Nano Structure of Ministry of Education, Wuhan University, Wuhan 430072, China.
| | - Yi Yang
- School of Physics & Technology, Key Laboratory of Artificial Micro/Nano Structure of Ministry of Education, Wuhan University, Wuhan 430072, China. and Shenzhen Research Institute, Wuhan University, Shenzhen 518000, China
| |
Collapse
|
43
|
Abstract
Selective manipulation of single cells is an important step in sample preparation for biological analysis. A highly specific and automated device is desired for such an operation. An ideal device would be able to selectively pick several single cells in parallel from a heterogeneous population and transfer those to designated sites for further analysis without human intervention. The robotic manipulator developed here provides the basis for development of such a device. The device in this work is designed to selectively pick cells based on their inherent properties using dielectrophoresis (DEP) and automatically transfer and release those at a transfer site. Here we provide proof of concept of such a device and study the effect of different parameters on its operation. Successful experiments were conducted to separate Candida cells from a mixture with 10 μm latex particles and a viability assay was performed for separation of viable rat adipose stem cells (RASCs) from non-viable ones. The robotic DEP device was further used to pick and transfer single RASCs. This work also discusses the advantages and disadvantages of our current setup and illustrates the future steps required to improve the performance of this robotic DEP technology.
Collapse
Affiliation(s)
- Rucha Natu
- Multiscale Manufacturing Laboratory, Department of Mechanical Engineering, Clemson University, SC 29634, USA.
| | - Monsur Islam
- Multiscale Manufacturing Laboratory, Department of Mechanical Engineering, Clemson University, SC 29634, USA. and Karlsruhe Institute of Technology, Institute of Microstructure Technology, Hermann-von-Helmholtz-Platz 1 76344, Eggenstein-Leopoldshafen, Germany
| | - Devin Keck
- Multiscale Manufacturing Laboratory, Department of Mechanical Engineering, Clemson University, SC 29634, USA.
| | - Rodrigo Martinez-Duarte
- Multiscale Manufacturing Laboratory, Department of Mechanical Engineering, Clemson University, SC 29634, USA.
| |
Collapse
|
44
|
Pritchard RH, Zhukov AA, Fullerton JN, Want AJ, Hussain F, la Cour MF, Bashtanov ME, Gold RD, Hailes A, Banham-Hall E, Rogers SS. Cell sorting actuated by a microfluidic inertial vortex. Lab Chip 2019; 19:2456-2465. [PMID: 31210196 DOI: 10.1039/c9lc00120d] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
The sorting of specific cell populations is an established tool in biological research, with new applications demanding greater cell throughput, sterility and elimination of cross-contamination. Here we report 'vortex-actuated cell sorting' (VACS), a new technique that deflects cells individually, via the generation of a transient microfluidic vortex by a thermal vapour bubble: a novel mechanism, which is able to sort cells based on fluorescently-labelled molecular markers. Using in silico simulation and experiments on beads, an immortal cell line and human peripheral blood mononuclear cells (PBMCs), we demonstrate high-purity and high-recovery sorting with input rates up to 104 cells per s and switching speeds comparable to existing techniques (>40 kHz). A tiny footprint (1 × 0.25 mm) affords miniaturization and the potential to achieve multiplexing: a crucial step in increasing processing rate. Simple construction using biocompatible materials potentially minimizes cost of fabrication and permits single-use sterile cartridges. We believe VACS potentially enables parallel sorting at throughputs relevant to cell therapy, liquid biopsy and phenotypic screening.
Collapse
Affiliation(s)
- Robyn H Pritchard
- TTP PLC, Melbourn Science Park, Melbourn, Cambridgeshire SG8 6EE, UK.
| | | | | | | | | | | | | | | | | | | | | |
Collapse
|
45
|
Abstract
Macroautophagy is a ubiquitous degradative pathway involved in innate and adaptive immunity. Its molecular machinery has been described to deliver intracellular and extracellular antigens to MHC class II loading compartment by regulating autophagosome and phagosome maturation. We recently found that the respective Atg proteins can contribute to MHC class I-restricted antigen presentation to CD8+ T cells by regulating MHC class I surface levels in mouse dendritic cell. Indeed, we determined that MHC class I molecules are stabilized on the cell surface of murine antigen presenting cells deficient for core components of the macroautophagy machinery such as Atg5 and Atg7. This stabilization seems to result from defective internalization of MHC class I molecules dependent on adaptor protein kinase 1 (AAK1), involved in clathrin-mediated endocytosis. Moreover, macroautophagy-dependent stabilization of MHC class I molecules leads to enhanced CD8+ T cell priming during influenza A virus infection in vivo, resulting in decreased pathology. In this chapter, we describe four experiments to monitor, characterize, and quantify the effect of macroautophagy deficiency on MHC class I molecule trafficking and the subsequent CD8+ T cell priming. First, we will show how to monitor MHC class I internalization in lung CD11c+ cells from mice lacking key components of the macroautophagy machinery. Then, we will propose a method to characterize the interaction between either MHC class I or Atg8/LC3 with AAK1. Finally, we will describe how to evaluate the influenza A-specific CD8+ T cell response in mice conditionally depleted for Atg5 in their DC compartment. This set of experiments allows to characterize MHC class I internalization with the help of the molecular machinery of macroautophagy.
Collapse
Affiliation(s)
- Monica Loi
- Viral Immunobiology, Institute of Experimental Immunology, University of Zürich, Zürich, Switzerland
| | - Laure-Anne Ligeon
- Viral Immunobiology, Institute of Experimental Immunology, University of Zürich, Zürich, Switzerland
| | - Christian Münz
- Viral Immunobiology, Institute of Experimental Immunology, University of Zürich, Zürich, Switzerland.
| |
Collapse
|
46
|
Chen K, Dopico P, Varillas J, Zhang J, George TJ, Fan ZH. Integration of Lateral Filter Arrays with Immunoaffinity for Circulating-Tumor-Cell Isolation. Angew Chem Int Ed Engl 2019; 58:7606-7610. [PMID: 30958635 PMCID: PMC6534423 DOI: 10.1002/anie.201901412] [Citation(s) in RCA: 37] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2019] [Indexed: 01/06/2023]
Abstract
Circulating tumor cells (CTCs) are an important biomarker for cancer prognosis and treatment monitoring. However, the heterogeneity of the physical and biological properties of CTCs limits the efficiency of various approaches used to isolate small numbers of CTCs from billions of normal blood cells. To address this challenge, we developed a lateral filter array microfluidic (LFAM) device to integrate size-based separation with immunoaffinity-based CTC isolation. The LFAM device consists of a serpentine main channel, through which most of a sample passes, and an array of lateral filters for CTC isolation. The unique device design produces a two-dimensional flow, which reduces nonspecific, geometric capture of normal cells as typically observed in vertical filters. The LFAM device was further functionalized by immobilizing antibodies that are specific to the target cells. The resulting devices captured pancreatic cancer cells spiked in blood samples with (98.7±1.2) % efficiency and were used to isolate CTCs from patients with metastatic colorectal cancer.
Collapse
Affiliation(s)
- Kangfu Chen
- Interdisciplinary Microsystems Group (IMG), Department of Mechanical and Aerospace Engineering, University of Florida, P.O. BOX 116250, Gainesville, FL, 32611, USA
| | - Pablo Dopico
- Interdisciplinary Microsystems Group (IMG), Department of Mechanical and Aerospace Engineering, University of Florida, P.O. BOX 116250, Gainesville, FL, 32611, USA
| | - Jose Varillas
- J. Crayton Pruitt Family Department of Biomedical Engineering, University of Florida, Gainesville, FL, 32611, USA
| | - Jinling Zhang
- Interdisciplinary Microsystems Group (IMG), Department of Mechanical and Aerospace Engineering, University of Florida, P.O. BOX 116250, Gainesville, FL, 32611, USA
| | - Thomas J George
- Department of Medicine, University of Florida, Gainesville, FL, 32610, USA
| | - Z Hugh Fan
- Interdisciplinary Microsystems Group (IMG), Department of Mechanical and Aerospace Engineering, University of Florida, P.O. BOX 116250, Gainesville, FL, 32611, USA
- J. Crayton Pruitt Family Department of Biomedical Engineering, University of Florida, Gainesville, FL, 32611, USA
| |
Collapse
|
47
|
Ribeiro-Samy S, Oliveira MI, Pereira-Veiga T, Muinelo-Romay L, Carvalho S, Gaspar J, Freitas PP, López-López R, Costa C, Diéguez L. Fast and efficient microfluidic cell filter for isolation of circulating tumor cells from unprocessed whole blood of colorectal cancer patients. Sci Rep 2019; 9:8032. [PMID: 31142796 PMCID: PMC6541613 DOI: 10.1038/s41598-019-44401-1] [Citation(s) in RCA: 55] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2018] [Accepted: 05/07/2019] [Indexed: 12/13/2022] Open
Abstract
Liquid biopsy offers unique opportunities for low invasive diagnosis, real-time patient monitoring and treatment selection. The phenotypic and molecular profile of circulating tumor cells (CTCs) can provide key information about the biology of tumor cells, contributing to personalized therapy. CTC isolation is still challenging, mainly due to their heterogeneity and rarity. To overcome this limitation, a microfluidic chip for label-free isolation of CTCs from peripheral blood was developed. This device, the CROSS chip, captures CTCs based on their size and deformability with an efficiency of 70%. Using 2 chips, 7.5 ml of whole blood are processed in 47 minutes with high purity, as compared to similar technologies and assessed by in situ immunofluorescence. The CROSS chip performance was compared to the CellSearch system in a set of metastatic colorectal cancer patients, resulting in higher capture of DAPI+/CK+/CD45- CTCs in all individuals tested. Importantly, CTC enumeration by CROSS chip enabled stratification of patients with different prognosis. Lastly, cells isolated in the CROSS chip were lysed and further subjected to molecular characterization by droplet digital PCR, which revealed a mutation in the APC gene for most patient samples analyzed, confirming their colorectal origin and the versatility of the technology for downstream applications.
Collapse
Affiliation(s)
- Silvina Ribeiro-Samy
- Department of Life Sciences, International Iberian Nanotechnology Laboratory (INL), Avenida Mestre José Veiga s/n, 4715-330, Braga, Portugal
| | - Marta I Oliveira
- Department of Life Sciences, International Iberian Nanotechnology Laboratory (INL), Avenida Mestre José Veiga s/n, 4715-330, Braga, Portugal
| | - Thais Pereira-Veiga
- Roche-CHUS Joint Unit, Oncomet, Health Research Institute of Santiago (IDIS), Complejo Hospitalario de Santiago de Compostela, Trav. Choupana s/n, 15706, Santiago de Compostela, Spain
| | - Laura Muinelo-Romay
- Liquid Biopsy Analysis Unit, Oncomet, Health Research Institute of Santiago (IDIS), Complejo Hospitalario de Santiago de Compostela, Trav. Choupana s/n, 15706, Santiago de Compostela, Spain
- CIBERONC, Centro de Investigación Biomédica en Red Cáncer, Madrid, Spain
| | - Sandra Carvalho
- Department of Life Sciences, International Iberian Nanotechnology Laboratory (INL), Avenida Mestre José Veiga s/n, 4715-330, Braga, Portugal
| | - João Gaspar
- Department of Micro and Nanofabrication, International Iberian Nanotechnology Laboratory (INL), Avenida Mestre José Veiga s/n, 4715-330, Braga, Portugal
| | - Paulo P Freitas
- Department of Nanoelectronics Engineering, International Iberian Nanotechnology Laboratory (INL), Avenida Mestre José Veiga s/n, 4715-330, Braga, Portugal
| | - Rafael López-López
- Roche-CHUS Joint Unit, Oncomet, Health Research Institute of Santiago (IDIS), Complejo Hospitalario de Santiago de Compostela, Trav. Choupana s/n, 15706, Santiago de Compostela, Spain
- CIBERONC, Centro de Investigación Biomédica en Red Cáncer, Madrid, Spain
| | - Clotilde Costa
- Roche-CHUS Joint Unit, Oncomet, Health Research Institute of Santiago (IDIS), Complejo Hospitalario de Santiago de Compostela, Trav. Choupana s/n, 15706, Santiago de Compostela, Spain.
- CIBERONC, Centro de Investigación Biomédica en Red Cáncer, Madrid, Spain.
| | - Lorena Diéguez
- Department of Life Sciences, International Iberian Nanotechnology Laboratory (INL), Avenida Mestre José Veiga s/n, 4715-330, Braga, Portugal.
| |
Collapse
|
48
|
Ozawa R, Iwadate H, Toyoda H, Yamada M, Seki M. A numbering-up strategy of hydrodynamic microfluidic filters for continuous-flow high-throughput cell sorting. Lab Chip 2019; 19:1828-1837. [PMID: 30998230 DOI: 10.1039/c9lc00053d] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Even though a number of microfluidic systems for particle/cell sorting have been proposed, facile and versatile platforms that provide sufficient sorting throughput and good operability are still under development. Here we present a simple but effective numbering-up strategy to dramatically increase the throughput of a continuous-flow particle/cell sorting scheme based on hydrodynamic filtration (HDF). A microfluidic channel equipped with multiple branches has been employed as a unit structure for size-based filtration, which realizes precise sorting without necessitating sheath flows. According to the concept of resistive circuit models, we designed and fabricated microdevices incorporating 64 or 128 closely assembled, multiplied units with a separation size of 5.0/7.0 μm. In proof-of-concept experiments, we successfully separated single micrometer-sized model particles and directly separated blood cells (erythrocytes and leukocytes) from blood samples. Additionally, we further increased the unit numbers by laminating multiple layers at a processing speed of up to 15 mL min-1. The presented numbering-up strategy would provide a valuable insight that is universally applicable to general microfluidic particle/cell sorters and may facilitate the actual use of microfluidic systems in biological studies and clinical diagnosis.
Collapse
Affiliation(s)
- Ryoken Ozawa
- Department of Applied Chemistry and Biotechnology, Graduate School of Engineering, Chiba University, 1-33 Yayoi-cho, Inage-ku, Chiba 263-8522, Japan.
| | | | | | | | | |
Collapse
|
49
|
Gasiorowski L, Dyszkiewicz W, Zielinski P. In-vivo isolation of circulating tumor cells in non-small cell lung cancer patients by CellCollector. Neoplasma 2019; 64:938-944. [PMID: 28895421 DOI: 10.4149/neo_2017_618] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
In non-small cell lung cancer (NSCLC) circulating tumor cells (CTCs) can provide information on patient prognosis and treatment efficacy. Currently CTCs are mostly isolated in vitro from small volumes of patient blood samples. The aim of the study was to assess a medical device for in vivo isolation of CTCs directly from the blood of NSCLC patients. The device was inserted in a cubital vein through a standard cannula for thirty minutes. The interaction of target CTCs with the CellCollector was mediated by an antibody directed against the epithelial cell adhesion molecule. There were 60 applications of the wire in 48 stage I-IIIB NSCLC patients and 12 non-cancer patients. The device was well tolerated in all applications without side effects. We obtained in vivo isolation of CTCs in 32 of 34 NSCLC patients (94.1%) with a median (range) of 13 (0-300) CTCs. In the non-cancer patients, no CTCs were detected. The safety and efficacy of an in vivo CTC detection method directly from the bloodstream of patients with NSCLC has been demonstrated. This proof of concept study may have important clinical implications, as the implementation of the device into clinical practice may improve early detection, prognosis and therapy monitoring of NSCLC patients.
Collapse
|
50
|
Pan CW, Horvath DG, Braza S, Moore T, Lynch A, Feit C, Abbyad P. Sorting by interfacial tension (SIFT): label-free selection of live cells based on single-cell metabolism. Lab Chip 2019; 19:1344-1351. [PMID: 30849144 PMCID: PMC6456419 DOI: 10.1039/c8lc01328d] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Selection of live cells from a population is critical in many biological studies and biotechnologies. We present here a novel droplet microfluidic approach that allows for label-free and passive selection of live cells using the glycolytic activity of individual cells. It was observed that with the use of a specific surfactant utilized to stabilize droplet formation, the interfacial tension of droplets was very sensitive to pH. After incubation, cellular lactate release results in droplets containing a live cell to attain a lower pH than other droplets. This enables the sorting of droplets containing live cells when confined droplets flow over a microfabricated trench oriented diagonally with respect to the direction of flow. The technique is demonstrated with human U87 glioblastoma cells for the selection of only droplets containing a live cell while excluding either empty droplets or droplets containing a dead cell. This label-free sorting method, dubbed sorting by interfacial tension (SIFT) presents a new strategy to sort diverse cell types based on metabolic activity.
Collapse
Affiliation(s)
- Ching W Pan
- Department of Chemistry and Biochemistry, Santa Clara University, Santa Clara, CA 95053, USA.
| | | | | | | | | | | | | |
Collapse
|