1
|
Kim YJ, Min J. Hydrogel-based technologies in liquid biopsy for the detection of circulating clinical markers: challenges and prospects. Anal Bioanal Chem 2024; 416:2065-2078. [PMID: 37963993 DOI: 10.1007/s00216-023-05025-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2023] [Revised: 10/22/2023] [Accepted: 10/27/2023] [Indexed: 11/16/2023]
Abstract
Liquid biopsy, which promises noninvasive detection of tumor-derived material, has recently been highlighted because of its potential to lead us to an era of precision medicine. However, its development has encountered challenges owing to the extremely low frequency and low purity of circulating tumor markers, such as circulating tumor cells (CTCs), circulating exosomes, and circulating tumor nucleic acids (ctNAs). Much effort has been made to overcome this limitation over the last decade, and an increasing number of studies have shown interest in the special characteristics of hydrogels. This hydrophilic and biocompatible polymeric network, which absorbs a large amount of water, can aid in the isolation, protection, and analysis of these low-abundance and short-lived circulating biomarkers. The role of hydrogels in liquid biopsy is extensive and ranges from enrichment to encapsulation. This review provides an overview of hydrogel-based technologies to pave the way in liquid biopsy.
Collapse
Affiliation(s)
- Young Jun Kim
- School of Integrative Engineering, Chung-Ang University, Heukseok-Dong, Dongjak-Gu, Seoul, 06974, Republic of Korea
| | - Junhong Min
- School of Integrative Engineering, Chung-Ang University, Heukseok-Dong, Dongjak-Gu, Seoul, 06974, Republic of Korea.
| |
Collapse
|
2
|
Chen B, Zheng J, Gao K, Hu X, Guo SS, Zhao XZ, Liao F, Yang Y, Liu W. Noninvasive Optical Isolation and Identification of Circulating Tumor Cells Engineered by Fluorescent Microspheres. ACS APPLIED BIO MATERIALS 2022; 5:2768-2776. [PMID: 35537085 DOI: 10.1021/acsabm.2c00204] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
Circulating tumor cells (CTCs) are rare, meaning that current isolation strategies can hardly satisfy efficiency and cell biocompatibility requirements, which hinders clinical applications. In addition, the selected cells require immunofluorescence identification, which is a time-consuming and expensive process. Here, we developed a method to simultaneously separate and identify CTCs by the integration of optical force and fluorescent microspheres. Our method achieved high-purity separation of CTCs without damage through light manipulation and avoided additional immunofluorescence staining procedures, thus achieving rapid identification of sorted cells. White blood cells (WBCs) and CTCs are similar in size and density, which creates difficulties in distinguishing them optically. Therefore, fluorescent PS microspheres with high refractive index (RI) are designed here to capture the CTCs (PS-CTCs) and increase the average index of refraction of PS-CTCs. In optofluidic chips, PS-CTCs were propelled to the collection channel from the sample mixture, under the radiation of light force. Cells from the collection outlet were easily identified under a fluorescence microscope due to the fluorescence signals of PS microspheres. This method provides an approach for the sorting and identification of CTCs, which holds great potential for clinical applications in early diagnosis of disease.
Collapse
Affiliation(s)
- Bei Chen
- Key Laboratory of Artificial Micro- and Nano-Structures of Ministry of Education, School of Physics and Technology, Wuhan University, Wuhan, Hubei 430072, China
| | - Jingjing Zheng
- Key Laboratory of Artificial Micro- and Nano-Structures of Ministry of Education, School of Physics and Technology, Wuhan University, Wuhan, Hubei 430072, China
| | - Kefan Gao
- Key Laboratory of Artificial Micro- and Nano-Structures of Ministry of Education, School of Physics and Technology, Wuhan University, Wuhan, Hubei 430072, China
| | - Xuejia Hu
- Department of Electronic Engineering School of Electronic Science and Engineering, Xiamen University, Xiamen, Fujian Province 361005, China
| | - Shi-Shang Guo
- Key Laboratory of Artificial Micro- and Nano-Structures of Ministry of Education, School of Physics and Technology, Wuhan University, Wuhan, Hubei 430072, China
| | - Xing-Zhong Zhao
- Key Laboratory of Artificial Micro- and Nano-Structures of Ministry of Education, School of Physics and Technology, Wuhan University, Wuhan, Hubei 430072, China
| | - Fei Liao
- Gastroenterology Department, Renmin Hospital of Wuhan University, Wuhan, Hubei 430060, China
| | - Yi Yang
- Key Laboratory of Artificial Micro- and Nano-Structures of Ministry of Education, School of Physics and Technology, Wuhan University, Wuhan, Hubei 430072, China
| | - Wei Liu
- Key Laboratory of Artificial Micro- and Nano-Structures of Ministry of Education, School of Physics and Technology, Wuhan University, Wuhan, Hubei 430072, China.,Wuhan Institute of Quantum Technology, Wuhan 430206, China.,Hubei Luojia Laboratory, Wuhan University, Wuhan, Hubei 430072, China
| |
Collapse
|
3
|
Chen B, Wang G, Huang C, Sun Y, Zhang J, Chai Z, Guo SS, Zhao XZ, Yuan Y, Liu W. A light-induced hydrogel responsive platform to capture and selectively isolate single circulating tumor cells. NANOSCALE 2022; 14:3504-3512. [PMID: 35171188 DOI: 10.1039/d1nr06876h] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Isolation of circulating tumor cells (CTCs) from patients is a challenge due to the rarity of CTCs. Recently, various platforms to capture and release CTCs for downstream analysis have been developed. However, most of the reported release methods provide external stimuli to release all captured cells, which lead to lack of specificity in the pool of collected cells, and the external stimuli may affect the activity of the released cells. Here, we presented a simple method for single-cell recovery to overcome the shortcomings, which combined the nanostructures with a photocurable hydrogel, chondroitin sulfate methacryloyl (CSMA). In brief, we synthesized gelatin nanoparticles (Gnps) and modified them on flat glass (Gnp substrate) for the specific capture of CTCs. A 405 nm laser was projected onto the selected cells, and then CSMA was cured to encapsulate the selected CTCs. Unselected cells were removed with MMP-9 enzyme solution, and selected CTCs were recovered using a microcapillary. Finally, the photocurable hydrogel-encapsulated cells were analyzed by nucleic acid detection. In addition, the results suggested that the isolation platform showed good biocompatibility and successfully achieved the isolation of selected cells. In summary, our light-induced hydrogel responsive platform holds certain potential for clinical applications.
Collapse
Affiliation(s)
- Bei Chen
- Key Laboratory of Artificial Micro- and Nano-Structures of Ministry of Education, School of Physics and Technology, Wuhan University, Wuhan, Hubei 430072, China.
| | - Ganggang Wang
- Department of Hepatobiliary and Pancreatic Surgery, Zhongnan Hospital of Wuhan University, Wuhan, Hubei 430071, China.
| | - Chunyu Huang
- Key Laboratory of Artificial Micro- and Nano-Structures of Ministry of Education, School of Physics and Technology, Wuhan University, Wuhan, Hubei 430072, China.
| | - Yue Sun
- Key Laboratory of Artificial Micro- and Nano-Structures of Ministry of Education, School of Physics and Technology, Wuhan University, Wuhan, Hubei 430072, China.
| | - Jing Zhang
- Key Laboratory of Artificial Micro- and Nano-Structures of Ministry of Education, School of Physics and Technology, Wuhan University, Wuhan, Hubei 430072, China.
| | - Zhuomin Chai
- Key Laboratory of Artificial Micro- and Nano-Structures of Ministry of Education, School of Physics and Technology, Wuhan University, Wuhan, Hubei 430072, China.
| | - Shi-Shang Guo
- Key Laboratory of Artificial Micro- and Nano-Structures of Ministry of Education, School of Physics and Technology, Wuhan University, Wuhan, Hubei 430072, China.
| | - Xing-Zhong Zhao
- Key Laboratory of Artificial Micro- and Nano-Structures of Ministry of Education, School of Physics and Technology, Wuhan University, Wuhan, Hubei 430072, China.
| | - Yufeng Yuan
- Department of Hepatobiliary and Pancreatic Surgery, Zhongnan Hospital of Wuhan University, Wuhan, Hubei 430071, China.
| | - Wei Liu
- Key Laboratory of Artificial Micro- and Nano-Structures of Ministry of Education, School of Physics and Technology, Wuhan University, Wuhan, Hubei 430072, China.
| |
Collapse
|
4
|
Yoshino T, Mao Y, Maeda Y, Negishi R, Murata S, Moriya S, Shimada H, Arakaki A, Kobayashi K, Hagiwara Y, Okamoto K, Tanaka T. Single-cell genotyping of phytoplankton from ocean water by gel-based cell manipulation. Biotechnol J 2022; 17:e2100633. [PMID: 35195355 DOI: 10.1002/biot.202100633] [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: 11/18/2021] [Revised: 02/18/2022] [Accepted: 02/21/2022] [Indexed: 11/11/2022]
Abstract
A comprehensive understanding of phytoplankton diversity is valuable for assessing an environment of interest as phytoplankton are primary producers in various aquatic food webs. Microscopic analyses are useful for diversity assessment based on characteristic cell morphologies. However, phylogenetic classification based solely on morphology requires an extremely high level of expertise. The genetic approach is another option for evaluating phytoplankton diversity; however, it cannot reveal morphological information. To integrate these two approaches, we developed an original technology that is referred to as microcavity array (MCA)/gel-based cell manipulation (GCM). The model experiments using monocultures of various phytoplankton indicated that the efficiencies of cell recovery and isolation of single-cell plankton were dependent on cell size and shape. Cells with widths larger than the cavity width showed high level of recovery and isolation efficiency. Subsequent whole-genome amplification (WGA) of isolated single-cell plankton provided a sufficient amount (approximately 30 μg) of WGA products for genetic analyses. Furthermore, we showed that MCA/GCM could directly analyze phytoplankton in ocean water obtained from Suruga Bay, Japan, without any cumbersome pretreatment. These results indicate that MCA/GCM technology is a powerful tool for elucidating the phytoplankton diversity in marine environment. This article is protected by copyright. All rights reserved.
Collapse
Affiliation(s)
- Tomoko Yoshino
- Division of Biotechnology and Life Science, Institute of Engineering, Tokyo University of Agriculture and Technology, 2-24-16, Naka-cho, Koganei, Tokyo, 184-8588, Japan
| | - Yihao Mao
- Division of Biotechnology and Life Science, Institute of Engineering, Tokyo University of Agriculture and Technology, 2-24-16, Naka-cho, Koganei, Tokyo, 184-8588, Japan
| | - Yoshiaki Maeda
- Division of Biotechnology and Life Science, Institute of Engineering, Tokyo University of Agriculture and Technology, 2-24-16, Naka-cho, Koganei, Tokyo, 184-8588, Japan
| | - Ryo Negishi
- Division of Biotechnology and Life Science, Institute of Engineering, Tokyo University of Agriculture and Technology, 2-24-16, Naka-cho, Koganei, Tokyo, 184-8588, Japan
| | - Satoshi Murata
- Division of Biotechnology and Life Science, Institute of Engineering, Tokyo University of Agriculture and Technology, 2-24-16, Naka-cho, Koganei, Tokyo, 184-8588, Japan
| | - Seiichiro Moriya
- Division of Biotechnology and Life Science, Institute of Engineering, Tokyo University of Agriculture and Technology, 2-24-16, Naka-cho, Koganei, Tokyo, 184-8588, Japan
| | - Hirofumi Shimada
- Division of Biotechnology and Life Science, Institute of Engineering, Tokyo University of Agriculture and Technology, 2-24-16, Naka-cho, Koganei, Tokyo, 184-8588, Japan
| | - Atsushi Arakaki
- Division of Biotechnology and Life Science, Institute of Engineering, Tokyo University of Agriculture and Technology, 2-24-16, Naka-cho, Koganei, Tokyo, 184-8588, Japan
| | - Kenichi Kobayashi
- Shizuoka Prefectural Research Institute of Fishery and Ocean, 136-24, Iwashigashima, Yaizu, Shizuoka, 425-0032, Japan
| | - Yoshitsugu Hagiwara
- Shizuoka Prefectural Research Institute of Fishery and Ocean, 136-24, Iwashigashima, Yaizu, Shizuoka, 425-0032, Japan
| | - Kazutoshi Okamoto
- Shizuoka Prefectural Research Institute of Fishery and Ocean, 136-24, Iwashigashima, Yaizu, Shizuoka, 425-0032, Japan
| | - Tsuyoshi Tanaka
- Division of Biotechnology and Life Science, Institute of Engineering, Tokyo University of Agriculture and Technology, 2-24-16, Naka-cho, Koganei, Tokyo, 184-8588, Japan
| |
Collapse
|
5
|
Maeda Y, Yoshino T, Kogiso A, Negishi R, Takabayashi T, Tago H, Lim TK, Harada M, Matsunaga T, Tanaka T. Lensless imaging-based discrimination between tumour cells and blood cells towards circulating tumour cell cultivation. Analyst 2021; 146:7327-7335. [PMID: 34766603 DOI: 10.1039/d1an01414e] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Circulating tumour cells (CTCs) are recognized as important markers for cancer research. Nonetheless, the extreme rarity of CTCs in blood samples limits their availability for multiple characterization. The cultivation of CTCs is still technically challenging due to the lack of information of CTC proliferation, and it is difficult for conventional microscopy to monitor CTC cultivation owing to low throughput. In addition, for precise monitoring, CTCs need to be distinguished from the blood cells which co-exist with CTCs. Lensless imaging is an emerging technique to visualize micro-objects over a wide field of view, and has been applied for various cytometry analyses including blood tests. However, discrimination between tumour cells and blood cells was not well studied. In this study, we evaluated the potential of the lensless imaging system as a tool for monitoring CTC cultivation. Cell division of model tumour cells was examined using the lensless imaging system composed of a simple setup. Subsequently, we confirmed that tumour cells, JM cells (model lymphocytes), and erythrocytes exhibited cell line-specific patterns on the lensless images. After several discriminative parameters were extracted, discrimination between the tumour cells and other blood cells was demonstrated based on linear discriminant analysis. We also combined the highly efficient CTC recovery device, termed microcavity array, with the lensless-imaging to demonstrate recovery, monitoring and discrimination of the tumour cells spiked into whole blood samples. This study indicates that lensless imaging can be a powerful tool to investigate CTC proliferation and cultivation.
Collapse
Affiliation(s)
- Yoshiaki Maeda
- Division of Biotechnology and Life Science, Institute of Engineering, Tokyo University of Agriculture and Technology, 2-24-16, Naka-cho, Koganei, Tokyo, 184-8588, Japan.
| | - Tomoko Yoshino
- Division of Biotechnology and Life Science, Institute of Engineering, Tokyo University of Agriculture and Technology, 2-24-16, Naka-cho, Koganei, Tokyo, 184-8588, Japan.
| | - Atsushi Kogiso
- Division of Biotechnology and Life Science, Institute of Engineering, Tokyo University of Agriculture and Technology, 2-24-16, Naka-cho, Koganei, Tokyo, 184-8588, Japan.
| | - Ryo Negishi
- Division of Biotechnology and Life Science, Institute of Engineering, Tokyo University of Agriculture and Technology, 2-24-16, Naka-cho, Koganei, Tokyo, 184-8588, Japan.
| | - Tomohiro Takabayashi
- Division of Biotechnology and Life Science, Institute of Engineering, Tokyo University of Agriculture and Technology, 2-24-16, Naka-cho, Koganei, Tokyo, 184-8588, Japan.
| | - Hikaru Tago
- Division of Biotechnology and Life Science, Institute of Engineering, Tokyo University of Agriculture and Technology, 2-24-16, Naka-cho, Koganei, Tokyo, 184-8588, Japan.
| | - Tae-Kyu Lim
- Malcom Co., Ltd, 4-15-10, Honmachi, Shibuya-ku, Tokyo, 151-0071, Japan
| | - Manabu Harada
- Malcom Co., Ltd, 4-15-10, Honmachi, Shibuya-ku, Tokyo, 151-0071, Japan
| | - Tadashi Matsunaga
- Division of Biotechnology and Life Science, Institute of Engineering, Tokyo University of Agriculture and Technology, 2-24-16, Naka-cho, Koganei, Tokyo, 184-8588, Japan. .,Japan Agency for Marine-Earth Science and Technology (JAMSTEC), 2-15, Natsushima-cho, Yokosuka, Kanagawa, 237-0061, Japan
| | - Tsuyoshi Tanaka
- Division of Biotechnology and Life Science, Institute of Engineering, Tokyo University of Agriculture and Technology, 2-24-16, Naka-cho, Koganei, Tokyo, 184-8588, Japan.
| |
Collapse
|
6
|
Negishi R, Saito H, Iwata R, Tanaka T, Yoshino T. Performance evaluation of a high-throughput separation system for circulating tumor cells based on microcavity array. Eng Life Sci 2020; 20:485-493. [PMID: 33204235 PMCID: PMC7645638 DOI: 10.1002/elsc.202000024] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2020] [Revised: 06/12/2020] [Accepted: 07/01/2020] [Indexed: 02/03/2023] Open
Abstract
Circulating tumor cells (CTCs) are widely known as useful biomarkers in the liquid biopsies of cancer patients. Although single-cell genetic analysis of CTCs is a promising diagnostic tool that can provide detailed clinical information for precision medicine, the capacity of single-CTC isolation for genetic analysis requires improvement. To overcome this problem, we previously developed a multiple single-cell encapsulation system for CTCs using hydrogel-encapsulation, which allowed for the high-throughput isolation of single CTCs. However, isolation of a single cell from adjacent cells remained difficult and often resulted in contamination by neighboring cells due to the limited resolution of the generated hydrogel. We developed a novel multiple single-cell encapsulation system equipped with a high magnification lens for high throughput and a more accurate single-cell encapsulation. The multiple single-cell encapsulation system has sufficient sensitivity to detect immune-stained CTCs, and could also generate a micro-scaled hydrogel that can isolate a single cell from adjacent cells within 10 µm, with high efficiency. The proposed system enables high throughput and accurate single-cell manipulation and genome amplification without contamination from neighboring cells.
Collapse
Affiliation(s)
- Ryo Negishi
- Division of Biotechnology and Life ScienceInstitute of EngineeringTokyo University of Agriculture and TechnologyTokyoJapan
| | - Hyuga Saito
- Division of Biotechnology and Life ScienceInstitute of EngineeringTokyo University of Agriculture and TechnologyTokyoJapan
| | - Reito Iwata
- Division of Biotechnology and Life ScienceInstitute of EngineeringTokyo University of Agriculture and TechnologyTokyoJapan
| | - Tsuyoshi Tanaka
- Division of Biotechnology and Life ScienceInstitute of EngineeringTokyo University of Agriculture and TechnologyTokyoJapan
| | - Tomoko Yoshino
- Division of Biotechnology and Life ScienceInstitute of EngineeringTokyo University of Agriculture and TechnologyTokyoJapan
| |
Collapse
|
7
|
He X, Wu C, Qian Y, Li Y, Ding F, Zhou Z, Shen J. Symmetrical bis-salophen probe serves as a selectively and sensitively fluorescent switch of gallium ions in living cells and zebrafish. Talanta 2019; 205:120118. [DOI: 10.1016/j.talanta.2019.120118] [Citation(s) in RCA: 39] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2019] [Revised: 06/27/2019] [Accepted: 07/03/2019] [Indexed: 12/25/2022]
|
8
|
Xue M, Xiang A, Guo Y, Wang L, Wang R, Wang W, Ji G, Lu Z. Dynamic Halbach array magnet integrated microfluidic system for the continuous-flow separation of rare tumor cells. RSC Adv 2019; 9:38496-38504. [PMID: 35540230 PMCID: PMC9075830 DOI: 10.1039/c9ra08285a] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2019] [Accepted: 11/08/2019] [Indexed: 01/18/2023] Open
Abstract
Circulating tumor cells (CTCs), the most representative rare cells in peripheral blood, have received great attention due to their clinical utility in liquid biopsy. The downstream analysis of intact CTCs isolated from peripheral blood provides important clinical information for personalized medicine. However, current CTC isolation and detection methods have been challenged by their extreme rarity and heterogeneity. In this study, we developed a novel microfluidic system with a continuously moving Halbach array magnet (dHAMI microfluidic system) for negative isolation CTCs from whole blood, which aimed to capture non-target white blood cells (WBCs) and elute target CTCs. The dynamic and continuous movement of the Halbach array magnet generated a continuous magnetic force acting on the magnetic bead-labelled WBCs in the continuous-flow fluid to negatively exclude the WBCs from the CTCs. Furthermore, the continuously moving magnetic field effectively eliminated the effect of magnetic bead aggregation on the fluid flow to realize the continuous-flow separation of the CTCs without a sample loading volume limitation. The experimental procedure for CTC negative isolation using the dHAMI microfluidic system could be completed within 40 min. Under the optimized experimental conditions of the dHAMI microfluidic system, including the flow rate and concentration of the immunomagnetic bead, the average CTC capture rate over a range of spiked cell numbers (50–1000 cancer cells per mL) was up to 91.6% at a flow rate of 100 μL min−1. Finally, the CTCs were successfully detected in 10 of 10 (100%) blood samples from patients with cancer. Therefore, the dHAMI microfluidic system could effectively isolate intact and heterogeneous CTCs for downstream cellular and molecular analyses, and this robust microfluidic platform with an excellent magnetic manipulation performance also has great application potential for the separation of other rare cells. We develop a dynamic Halbach array magnet integrated microfluidic system for continuous-flow separation of circulating tumor cells from whole blood.![]()
Collapse
Affiliation(s)
- Mei Xue
- Center for Translational Medicine, The First Affiliated Hospital of Xi'an Jiaotong University Xi'an 710061 Shaanxi People's Republic of China
| | - An Xiang
- Department of Biopharmaceutics, School of Pharmacy, Air Force Medical University (The Fourth Military Medical University) Xi'an 710032 Shaanxi People's Republic of China
| | - Yanhai Guo
- Department of Biopharmaceutics, School of Pharmacy, Air Force Medical University (The Fourth Military Medical University) Xi'an 710032 Shaanxi People's Republic of China
| | - Li Wang
- Department of Biopharmaceutics, School of Pharmacy, Air Force Medical University (The Fourth Military Medical University) Xi'an 710032 Shaanxi People's Republic of China
| | - Rou Wang
- Department of Biopharmaceutics, School of Pharmacy, Air Force Medical University (The Fourth Military Medical University) Xi'an 710032 Shaanxi People's Republic of China
| | - Wenwen Wang
- Department of Biopharmaceutics, School of Pharmacy, Air Force Medical University (The Fourth Military Medical University) Xi'an 710032 Shaanxi People's Republic of China
| | - Gang Ji
- Xijing Hospital of Digestive Diseases, Xijing Hospital, Air Force Medical University (The Fourth Military Medical University) Xi'an 710032 Shaanxi People's Republic of China
| | - Zifan Lu
- Department of Biopharmaceutics, School of Pharmacy, Air Force Medical University (The Fourth Military Medical University) Xi'an 710032 Shaanxi People's Republic of China
| |
Collapse
|
9
|
Shen C, Liu S, Li X, Yang M. Electrochemical Detection of Circulating Tumor Cells Based on DNA Generated Electrochemical Current and Rolling Circle Amplification. Anal Chem 2019; 91:11614-11619. [PMID: 31452368 DOI: 10.1021/acs.analchem.9b01897] [Citation(s) in RCA: 69] [Impact Index Per Article: 13.8] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Circulating tumor cells (CTCs) are important indicators for tumor diagnosis and tumor metastasis. However, the extremely low levels of CTCs in peripheral blood challenges the precise detection of CTCs. Herein, we report DNA generated electrochemical current combined with rolling circle amplification (RCA) as well as magnetic nanospheres for highly efficient magnetic capture and ultrasensitive detection of CTCs. The antiepithelial cell adhesion molecule (EpCAM) antibody-modified magnetic nanospheres were used to capture and enrich CTCs. The following binding of an aptamer onto the CTC surface and the subsequent RCA assembled a significant amount of DNA molecules onto the electrode. The reaction of the DNA molecules with molybdate can then form redox molybdophosphate and produce an electrochemical current. Using the breast cancer cell MCF-7 as a model, the sensor displays good performances toward detection of MCF-7 that was spiked into peripheral blood. The signal amplification strategy integrated with a magnetic nanosphere platform exhibits good performance in the efficient capture and detection of CTCs, which may find wide potential in cancer diagnostics and therapeutics.
Collapse
Affiliation(s)
- Congcong Shen
- Key Laboratory of Hunan Province for Water Environment and Agriculture Product Safety, College of Chemistry and Chemical Engineering , Central South University , Changsha 410083 , China.,School of Chemistry and Chemical Engineering , Henan Normal University , Xinxiang 453007 , China
| | - Shuping Liu
- Key Laboratory of Hunan Province for Water Environment and Agriculture Product Safety, College of Chemistry and Chemical Engineering , Central South University , Changsha 410083 , China
| | - Xiaoqing Li
- Key Laboratory of Hunan Province for Water Environment and Agriculture Product Safety, College of Chemistry and Chemical Engineering , Central South University , Changsha 410083 , China
| | - Minghui Yang
- Key Laboratory of Hunan Province for Water Environment and Agriculture Product Safety, College of Chemistry and Chemical Engineering , Central South University , Changsha 410083 , China
| |
Collapse
|
10
|
Single identical cell toxicity assay on coordinately ordered patterns. Anal Chim Acta 2019; 1065:56-63. [DOI: 10.1016/j.aca.2019.02.040] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2018] [Revised: 02/11/2019] [Accepted: 02/14/2019] [Indexed: 12/25/2022]
|
11
|
|
12
|
Negishi R, Iwata R, Tanaka T, Kisailus D, Maeda Y, Matsunaga T, Yoshino T. Gel-based cell manipulation method for isolation and genotyping of single-adherent cells. Analyst 2019; 144:990-996. [DOI: 10.1039/c8an01456f] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
The simple and rapid method for isolation of single-adherent cells from a culture dish was developed and applied to genetic analysis of single-cells.
Collapse
Affiliation(s)
- Ryo Negishi
- Division of Biotechnology and Life Science
- Institute of Engineering
- Tokyo University of Agriculture and Technology
- Tokyo
- Japan
| | - Reito Iwata
- Division of Biotechnology and Life Science
- Institute of Engineering
- Tokyo University of Agriculture and Technology
- Tokyo
- Japan
| | - Tsuyoshi Tanaka
- Division of Biotechnology and Life Science
- Institute of Engineering
- Tokyo University of Agriculture and Technology
- Tokyo
- Japan
| | - David Kisailus
- Department of Chemical and Environmental Engineering
- University of California
- Riverside
- Riverside
- USA
| | - Yoshiaki Maeda
- Division of Biotechnology and Life Science
- Institute of Engineering
- Tokyo University of Agriculture and Technology
- Tokyo
- Japan
| | - Tadashi Matsunaga
- Division of Biotechnology and Life Science
- Institute of Engineering
- Tokyo University of Agriculture and Technology
- Tokyo
- Japan
| | - Tomoko Yoshino
- Division of Biotechnology and Life Science
- Institute of Engineering
- Tokyo University of Agriculture and Technology
- Tokyo
- Japan
| |
Collapse
|