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Qiao Z, Teng X, Liu A, Yang W. Novel Isolating Approaches to Circulating Tumor Cell Enrichment Based on Microfluidics: A Review. MICROMACHINES 2024; 15:706. [PMID: 38930676 PMCID: PMC11206030 DOI: 10.3390/mi15060706] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/03/2024] [Revised: 05/14/2024] [Accepted: 05/24/2024] [Indexed: 06/28/2024]
Abstract
Circulating tumor cells (CTCs), derived from the primary tumor and carrying genetic information, contribute significantly to the process of tumor metastasis. The analysis and detection of CTCs can be used to assess the prognosis and treatment response in patients with tumors, as well as to help study the metastatic mechanisms of tumors and the development of new drugs. Since CTCs are very rare in the blood, it is a challenging problem to enrich CTCs efficiently. In this paper, we provide a comprehensive overview of microfluidics-based enrichment devices for CTCs in recent years. We explore in detail the methods of enrichment based on the physical or biological properties of CTCs; among them, physical properties cover factors such as size, density, and dielectric properties, while biological properties are mainly related to tumor-specific markers on the surface of CTCs. In addition, we provide an in-depth description of the methods for enrichment of single CTCs and illustrate the importance of single CTCs for performing tumor analyses. Future research will focus on aspects such as improving the separation efficiency, reducing costs, and increasing the detection sensitivity and accuracy.
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Affiliation(s)
- Zezheng Qiao
- School of Electromechanical and Automotive Engineering, Yantai University, Yantai 264005, China; (Z.Q.); (X.T.)
| | - Xiangyu Teng
- School of Electromechanical and Automotive Engineering, Yantai University, Yantai 264005, China; (Z.Q.); (X.T.)
| | - Anqin Liu
- School of Mechanical and Electrical Engineering, Yantai Institute of Technology, Yantai 264005, China
| | - Wenguang Yang
- School of Electromechanical and Automotive Engineering, Yantai University, Yantai 264005, China; (Z.Q.); (X.T.)
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Abusamra SM, Barber R, Sharafeldin M, Edwards CM, Davis JJ. The integrated on-chip isolation and detection of circulating tumour cells. SENSORS & DIAGNOSTICS 2024; 3:562-584. [PMID: 38646187 PMCID: PMC11025039 DOI: 10.1039/d3sd00302g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/09/2023] [Accepted: 03/12/2024] [Indexed: 04/23/2024]
Abstract
Circulating tumour cells (CTCs) are cancer cells shed from a primary tumour which intravasate into the blood stream and have the potential to extravasate into distant tissues, seeding metastatic lesions. As such, they can offer important insight into cancer progression with their presence generally associated with a poor prognosis. The detection and enumeration of CTCs is, therefore, critical to guiding clinical decisions during treatment and providing information on disease state. CTC isolation has been investigated using a plethora of methodologies, of which immunomagnetic capture and microfluidic size-based filtration are the most impactful to date. However, the isolation and detection of CTCs from whole blood comes with many technical barriers, such as those presented by the phenotypic heterogeneity of cell surface markers, with morphological similarity to healthy blood cells, and their low relative abundance (∼1 CTC/1 billion blood cells). At present, the majority of reported methods dissociate CTC isolation from detection, a workflow which undoubtedly contributes to loss from an already sparse population. This review focuses on developments wherein isolation and detection have been integrated into a single-step, microfluidic configuration, reducing CTC loss, increasing throughput, and enabling an on-chip CTC analysis with minimal operator intervention. Particular attention is given to immune-affinity, microfluidic CTC isolation, coupled to optical, physical, and electrochemical CTC detection (quantitative or otherwise).
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Affiliation(s)
- Sophia M Abusamra
- Nuffield Department of Surgical Sciences, University of Oxford Oxford OX3 9DU UK
| | - Robert Barber
- Department of Chemistry, University of Oxford Oxford OX1 3QZ UK
| | | | - Claire M Edwards
- Nuffield Department of Surgical Sciences, University of Oxford Oxford OX3 9DU UK
- Nuffield Department of Orthopaedics, Rheumatology and Musculoskeletal Systems, University of Oxford Oxford UK
| | - Jason J Davis
- Department of Chemistry, University of Oxford Oxford OX1 3QZ UK
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Li Y, Liu X, Zhang Y, Wu Z, Ling W, Zhang X, Zhou M, Onses MS, Zhou P, Mao S, Huo W, Fan Z, Yang H, Wang H, Huang X. A flexible wearable device coupled with injectable Fe 3O 4 nanoparticles for capturing circulating tumor cells and triggering their deaths. Biosens Bioelectron 2023; 235:115367. [PMID: 37187061 DOI: 10.1016/j.bios.2023.115367] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2023] [Revised: 04/17/2023] [Accepted: 04/28/2023] [Indexed: 05/17/2023]
Abstract
Elimination of circulating tumor cells (CTCs) in the blood can be an effective therapeutic approach to disrupt metastasis. Here, a strategy is proposed to implement flexible wearable electronics and injectable nanomaterials to disrupt the hematogenous transport of CTCs. A flexible device containing an origami magnetic membrane is used to attract Fe3O4@Au nanoparticles (NPs) that are surface modified with specific aptamers and intravenously injected into blood vessels, forming an invisible hand and fishing line/bait configuration to specifically capture CTCs through bonding with aptamers. Thereafter, thinned flexible AlGaAs LEDs in the device offer an average fluence of 15.75 mW mm-2 at a skin penetration depth of 1.5 mm, causing a rapid rise of temperature to 48 °C in the NPs and triggering CTC death in 10 min. The flexible device has been demonstrated for intravascular isolation and enrichment of CTCs with a capture efficiency of 72.31% after 10 cycles in a simulated blood circulation system based on a prosthetic upper limb. The fusion of nanomaterials and flexible electronics reveals an emerging field that utilizes wearable and flexible stimulators to activate biological effects offered by nanomaterials, leading to improved therapeutical effects and postoperative outcomes of diseases.
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Affiliation(s)
- Ya Li
- Department of Biomedical Engineering, Tianjin University, 92 Weijin Road, Tianjin, 300072, China; Center of Flexible Wearable Technology, Institute of Flexible Electronic Technology of Tsinghua, 906 Yatai Road, Jiaxing, 314006, China
| | - Xinyu Liu
- Department of Biomedical Engineering, Tianjin University, 92 Weijin Road, Tianjin, 300072, China; Center of Flexible Wearable Technology, Institute of Flexible Electronic Technology of Tsinghua, 906 Yatai Road, Jiaxing, 314006, China
| | - Yingying Zhang
- School of Medical Imaging, Xuzhou Medical University, 209 Tongshan Road, Xuzhou, 221004, China
| | - Ziyue Wu
- Department of Biomedical Engineering, Tianjin University, 92 Weijin Road, Tianjin, 300072, China; Center of Flexible Wearable Technology, Institute of Flexible Electronic Technology of Tsinghua, 906 Yatai Road, Jiaxing, 314006, China
| | - Wei Ling
- Department of Biomedical Engineering, Tianjin University, 92 Weijin Road, Tianjin, 300072, China; Center of Flexible Wearable Technology, Institute of Flexible Electronic Technology of Tsinghua, 906 Yatai Road, Jiaxing, 314006, China
| | - Xinyu Zhang
- Department of Life Science, Tianjin University, 92 Weijin Road, Tianjin, 300072, China
| | - Mingxing Zhou
- Department of Biomedical Engineering, Tianjin University, 92 Weijin Road, Tianjin, 300072, China; Center of Flexible Wearable Technology, Institute of Flexible Electronic Technology of Tsinghua, 906 Yatai Road, Jiaxing, 314006, China
| | - M Serdar Onses
- Department of Materials Science and Engineering, Erciyes University, Talas Yolu Melikgazi, Kayseri, 38039, Turkey
| | - Pan Zhou
- Department of Biomedical Engineering, Tianjin University, 92 Weijin Road, Tianjin, 300072, China; Center of Flexible Wearable Technology, Institute of Flexible Electronic Technology of Tsinghua, 906 Yatai Road, Jiaxing, 314006, China
| | - Sui Mao
- Department of Biomedical Engineering, Tianjin University, 92 Weijin Road, Tianjin, 300072, China; Center of Flexible Wearable Technology, Institute of Flexible Electronic Technology of Tsinghua, 906 Yatai Road, Jiaxing, 314006, China
| | - Wenxing Huo
- Department of Biomedical Engineering, Tianjin University, 92 Weijin Road, Tianjin, 300072, China; Center of Flexible Wearable Technology, Institute of Flexible Electronic Technology of Tsinghua, 906 Yatai Road, Jiaxing, 314006, China
| | - Zhenzhen Fan
- Department of Biomedical Engineering, Tianjin University, 92 Weijin Road, Tianjin, 300072, China
| | - Hong Yang
- The Province and Ministry Co-Sponsored Collaborative Innovation Center for Medical Epigenetics, Department of Pharmacology, School of Basic Medical Sciences, School of Biomedical Engineering, Intensive Care Unit, The Second Hospital, Tianjin Medical University, 22 Qixiangtai Road, Tianjin, 300070, China
| | - Hanjie Wang
- Department of Life Science, Tianjin University, 92 Weijin Road, Tianjin, 300072, China.
| | - Xian Huang
- Department of Biomedical Engineering, Tianjin University, 92 Weijin Road, Tianjin, 300072, China; Center of Flexible Wearable Technology, Institute of Flexible Electronic Technology of Tsinghua, 906 Yatai Road, Jiaxing, 314006, China; Institute of Wearable Technology and Bioelectronics, Qiantang Science and Technology Innovation Center, 1002 23rd Street, Hangzhou, 310018, China.
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