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Shen Y, Wang F, Li Y, Li J, Xiang S, Yang Y, Yang H, Cai R, Tan W. Novel Self-Powered Biosensor Based on Au Nanoparticles @ Pd Nanorings and Catalytic Hairpin Assembly for Ultrasensitive miRNA-21 Assay. Anal Chem 2024; 96:14508-14515. [PMID: 39177401 DOI: 10.1021/acs.analchem.4c02751] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/24/2024]
Abstract
An ultrasensitive self-powered biosensor is constructed for miRNA-21 detection based on Au nanoparticles @ Pd nanorings (Au NPs@Pd NRs) and catalytic hairpin assembly (CHA). The Au NPs@Pd NRs possess excellent electrical conductivity to improve the electron transfer rate and show good elimination of byproduct H2O2 to assist glucose oxidase (GOD) to catalyze glucose; CHA is used as an amplification strategy to effectively enhance the sensitivity of the biosensor. To further amplify the output signal, a capacitor is integrated into the self-powered biosensor. With multiple signal amplification strategies, the self-powered biosensor possesses a linear range of 0.1-10-4 fM and a lower limit of detection (LOD) of 0.032 fM (S/N = 3). In addition, the as-prepared self-powered biosensor displays potential applicability in the assay toward miRNA-21 in human serum samples.
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Affiliation(s)
- Yan Shen
- Molecular Science and Biomedicine Laboratory, State Key Laboratory for Chemo/Bio-Sensing and Chemometrics, College of Material Science and Engineering, College of Chemistry and Chemical Engineering, College of Biology, Hunan University, Changsha 410082, China
| | - Futing Wang
- Molecular Science and Biomedicine Laboratory, State Key Laboratory for Chemo/Bio-Sensing and Chemometrics, College of Material Science and Engineering, College of Chemistry and Chemical Engineering, College of Biology, Hunan University, Changsha 410082, China
| | - Yujin Li
- Molecular Science and Biomedicine Laboratory, State Key Laboratory for Chemo/Bio-Sensing and Chemometrics, College of Material Science and Engineering, College of Chemistry and Chemical Engineering, College of Biology, Hunan University, Changsha 410082, China
- College of Chemistry and Chemical Engineering, Xinyang Normal University, Xinyang 464000, China
| | - Jingxian Li
- Molecular Science and Biomedicine Laboratory, State Key Laboratory for Chemo/Bio-Sensing and Chemometrics, College of Material Science and Engineering, College of Chemistry and Chemical Engineering, College of Biology, Hunan University, Changsha 410082, China
| | - Shi Xiang
- Molecular Science and Biomedicine Laboratory, State Key Laboratory for Chemo/Bio-Sensing and Chemometrics, College of Material Science and Engineering, College of Chemistry and Chemical Engineering, College of Biology, Hunan University, Changsha 410082, China
| | - Yan Yang
- Molecular Science and Biomedicine Laboratory, State Key Laboratory for Chemo/Bio-Sensing and Chemometrics, College of Material Science and Engineering, College of Chemistry and Chemical Engineering, College of Biology, Hunan University, Changsha 410082, China
| | - Hongfen Yang
- Hunan Key Laboratory of Typical Environmental Pollution and Health Hazards, School of Public Health, Hengyang Medical School, University of South China, Hengyang 421001, China
| | - Ren Cai
- Molecular Science and Biomedicine Laboratory, State Key Laboratory for Chemo/Bio-Sensing and Chemometrics, College of Material Science and Engineering, College of Chemistry and Chemical Engineering, College of Biology, Hunan University, Changsha 410082, China
| | - Weihong Tan
- Molecular Science and Biomedicine Laboratory, State Key Laboratory for Chemo/Bio-Sensing and Chemometrics, College of Material Science and Engineering, College of Chemistry and Chemical Engineering, College of Biology, Hunan University, Changsha 410082, China
- The Cancer Hospital of the University of Chinese Academy of Sciences (Zhejiang Cancer Hospital), Hangzhou Institute of Medicine (HIM), Chinese Academy of Sciences, Hangzhou, Zhejiang 310022, China
- Institute of Molecular Medicine, Renji Hospital, Shanghai Jiao Tong University School of Medicine, and College of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, Shanghai 200240, China
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Liu H, Wang Y, Huang S, Tai J, Wang X, Dai X, Qiu C, Gu D, Yuan W, Ho HP, Chen J, Shao Y. Advancing MicroRNA Detection: Enhanced Biotin-Streptavidin Dual-Mode Phase Imaging Surface Plasmon Resonance Aptasensor. Anal Chem 2024; 96:8791-8799. [PMID: 38742926 DOI: 10.1021/acs.analchem.4c01234] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/16/2024]
Abstract
MicroRNAs (miRNAs) are novel tumor biomarkers owing to their important physiological functions in cell communication and the progression of multiple diseases. Due to the small molecular weight, short sequence length, and low concentration levels of miRNA, miRNA detection presents substantial challenges, requiring the advancement of more refined and sensitive techniques. There is an urgent demand for the development of a rapid, user-friendly, and sensitive miRNA analysis method. Here, we developed an enhanced biotin-streptavidin dual-mode phase imaging surface plasmon resonance (PI-SPR) aptasensor for sensitive and rapid detection of miRNA. Initially, we evaluated the linear sensing range for miRNA detection across two distinct sensing modalities and investigated the physical factors that influence the sensing signal in the aptamer-miRNA interaction within the PI-SPR aptasensor. Then, an enhanced biotin-streptavidin amplification strategy was introduced in the PI-SPR aptasensor, which effectively reduced the nonspecific adsorption by 20% and improved the limit of detection by 548 times. Furthermore, we have produced three types of tumor marker chips, which utilize the rapid sensing mode (less than 2 min) of PI-SPR aptasensor to achieve simultaneous detection of multiple miRNA markers in the serum from clinical cancer patients. This work not only developed a new approach to detect miRNA in different application scenarios but also provided a new reference for the application of the biotin-streptavidin amplification system in the detection of other small biomolecules.
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Affiliation(s)
- Haoyu Liu
- State Key Laboratory of Radio Frequency Heterogeneous Integration, Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong Province, College of Physics and Optoelectronics Engineering, Shenzhen University, Shenzhen 518060, China
| | - Yuye Wang
- State Key Laboratory of Radio Frequency Heterogeneous Integration, Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong Province, College of Physics and Optoelectronics Engineering, Shenzhen University, Shenzhen 518060, China
| | - Songfeng Huang
- State Key Laboratory of Radio Frequency Heterogeneous Integration, Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong Province, College of Physics and Optoelectronics Engineering, Shenzhen University, Shenzhen 518060, China
| | - Jiali Tai
- State Key Laboratory of Radio Frequency Heterogeneous Integration, Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong Province, College of Physics and Optoelectronics Engineering, Shenzhen University, Shenzhen 518060, China
| | - Xueliang Wang
- State Key Laboratory of Radio Frequency Heterogeneous Integration, Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong Province, College of Physics and Optoelectronics Engineering, Shenzhen University, Shenzhen 518060, China
| | - Xiaoqi Dai
- State Key Laboratory of Radio Frequency Heterogeneous Integration, Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong Province, College of Physics and Optoelectronics Engineering, Shenzhen University, Shenzhen 518060, China
| | - Chuanghua Qiu
- Department of Laboratory Medicine, Shenzhen Second People's Hospital, the First Affiliated Hospital of Shenzhen University, Shenzhen 518035, China
| | - Dayong Gu
- Department of Laboratory Medicine, Shenzhen Second People's Hospital, the First Affiliated Hospital of Shenzhen University, Shenzhen 518035, China
| | - Wu Yuan
- Department of Biomedical Engineering, The Chinese University of Hong Kong, Shatin, Hong Kong 852, China
| | - Ho-Pui Ho
- Department of Biomedical Engineering, The Chinese University of Hong Kong, Shatin, Hong Kong 852, China
| | - Jiajie Chen
- State Key Laboratory of Radio Frequency Heterogeneous Integration, Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong Province, College of Physics and Optoelectronics Engineering, Shenzhen University, Shenzhen 518060, China
| | - Yonghong Shao
- State Key Laboratory of Radio Frequency Heterogeneous Integration, Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong Province, College of Physics and Optoelectronics Engineering, Shenzhen University, Shenzhen 518060, China
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3
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Terada Y, Obara A, Briones JC, Luo X, Espulgar WV, Saito M, Takamatsu H, Tamiya E. Development of Nano-Micro Fused LSPR Chip for In Situ Single-Cell Secretion Analysis. MICROMACHINES 2023; 14:1404. [PMID: 37512715 PMCID: PMC10384685 DOI: 10.3390/mi14071404] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/15/2023] [Revised: 07/07/2023] [Accepted: 07/08/2023] [Indexed: 07/30/2023]
Abstract
Single-cell analysis has become increasingly important in uncovering cell heterogeneity, which has great implications in medicine and biology for a deep understanding of cell characteristics. Owing to its significance, it is vital to create novel devices that can reveal special or unique cells. In this work, we developed a single-cell secretion detection chip consisting of microwells that can trap single cells. Each well is surrounded by Au nanopillars capable of localized surface plasmon resonance (LSPR) measurement. Using microfabrication and nanofabrication techniques, Au nanopillar and microwell structures were fabricated on a COP film. The Au nanopillar was modified with IL-6 antibodies for the direct detection of single-cell secreted IL-6 via LSPR absorbance peak shift. Specific IL-6 detection was successfully demonstrated using a null and IL-6 oversecreting Jurkat cell. A high single-cell trapping efficiency of over 80% was also achieved. Overall, the development of this single-cell secretion detection chip with a simple LSPR measurement setup represents a significant development in the field of cell biology and immunology, providing researchers with a powerful tool for studying individual cells and their secreted cytokines, and is useful for point-of-care testing (POCT) diagnostics.
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Affiliation(s)
- Yuhei Terada
- Environmental Management Research Institute (EMRI), Department of Energy and Environment, National Institute of Advanced Industrial Science and Technology (AIST), Tsukuba 305-8569, Ibaraki, Japan
- Advanced Photonics and Biosensing Open Innovation Laboratory, AIST-Osaka University, Suita 565-0871, Osaka, Japan
- Department of Applied Physics, Graduate School of Engineering, Osaka University, Suita 565-0871, Osaka, Japan
| | - Ain Obara
- Advanced Photonics and Biosensing Open Innovation Laboratory, AIST-Osaka University, Suita 565-0871, Osaka, Japan
- Department of Applied Physics, Graduate School of Engineering, Osaka University, Suita 565-0871, Osaka, Japan
| | - Jonathan Campos Briones
- Life and Medical Photonics Division, Institute for Open and Transdisciplinary Research Initiatives, Osaka University, Suita 565-0871, Osaka, Japan
| | - Xi Luo
- Advanced Photonics and Biosensing Open Innovation Laboratory, AIST-Osaka University, Suita 565-0871, Osaka, Japan
- Department of Applied Physics, Graduate School of Engineering, Osaka University, Suita 565-0871, Osaka, Japan
| | - Wilfred Villariza Espulgar
- Advanced Photonics and Biosensing Open Innovation Laboratory, AIST-Osaka University, Suita 565-0871, Osaka, Japan
- Department of Applied Physics, Graduate School of Engineering, Osaka University, Suita 565-0871, Osaka, Japan
| | - Masato Saito
- Life and Medical Photonics Division, Institute for Open and Transdisciplinary Research Initiatives, Osaka University, Suita 565-0871, Osaka, Japan
| | - Hyota Takamatsu
- Department of Respiratory Medicine and Clinical Immunology, Graduate School of Medicine, Osaka University, Suita 565-0871, Osaka, Japan
- Laboratory of Autoimmune Diseases, Department of Clinical Research Center for Autoimmune Diseases, NHO Osaka Minami Medical Center, Kawachinagano 586-8521, Osaka, Japan
| | - Eiichi Tamiya
- Advanced Photonics and Biosensing Open Innovation Laboratory, AIST-Osaka University, Suita 565-0871, Osaka, Japan
- SANKEN, Osaka University, Ibaraki 567-0047, Osaka, Japan
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Xiao Y, Zhang Z, Yin S, Ma X. Nanoplasmonic biosensors for precision medicine. Front Chem 2023; 11:1209744. [PMID: 37483272 PMCID: PMC10359043 DOI: 10.3389/fchem.2023.1209744] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2023] [Accepted: 06/22/2023] [Indexed: 07/25/2023] Open
Abstract
Nanoplasmonic biosensors have a huge boost for precision medicine, which allows doctors to better understand diseases at the molecular level and to improve the earlier diagnosis and develop treatment programs. Unlike traditional biosensors, nanoplasmonic biosensors meet the global health industry's need for low-cost, rapid and portable aspects, while offering multiplexing, high sensitivity and real-time detection. In this review, we describe the common detection schemes used based on localized plasmon resonance (LSPR) and highlight three sensing classes based on LSPR. Then, we present the recent applications of nanoplasmonic in other sensing methods such as isothermal amplification, CRISPR/Cas systems, lab on a chip and enzyme-linked immunosorbent assay. The advantages of nanoplasmonic-based integrated sensing for multiple methods are discussed. Finally, we review the current applications of nanoplasmonic biosensors in precision medicine, such as DNA mutation, vaccine evaluation and drug delivery. The obstacles faced by nanoplasmonic biosensors and the current countermeasures are discussed.
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Affiliation(s)
- Yiran Xiao
- School of Science, Harbin Institute of Technology, Shenzhen, Guangdong, China
| | | | - Shi Yin
- Briteley Institute of Life Sciences, Yantai, Shandong, China
| | - Xingyi Ma
- School of Science, Harbin Institute of Technology, Shenzhen, Guangdong, China
- Biosen International, Jinan, Shandong, China
- Briteley Institute of Life Sciences, Yantai, Shandong, China
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5
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Li X, Feng Z, Fang C, Wei Y, Ji D, Hu W. Non-fouling polymer brush grafted fluorine-doped tin oxide enabled optical and chemical enhancement for sensitive label-free antibody microarrays. LAB ON A CHIP 2023; 23:2477-2486. [PMID: 37097479 DOI: 10.1039/d3lc00042g] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/17/2023]
Abstract
Oblique-incidence reflectivity difference (OIRD) is a compelling technique for real-time, label-free and non-destructive detection of antibody microarray chips, but its sensitivity needs essential improvement for clinical diagnosis. In this study, we report an innovative high-performance OIRD microarray by using poly[oligo(ethylene glycol) methacrylate-co-glycidyl methacrylate] (POEGMA-co-GMA) brush grafted fluorine-doped tin oxide (FTO) as the chip substrate. The polymer brush enhances the interfacial binding reaction efficiency of targets from the complicated sample matrix due to its high antibody loading and excellent anti-fouling merits; the FTO-polymer brush layered structure, on the other hand, excites the interference enhancement effect of OIRD to achieve enhanced intrinsic optical sensitivity. Synergistically, the sensitivity of this chip is significantly improved compared to rival chips, achieving a limit of detection (LOD) as low as 25 ng mL-1 for the model target C-reactive protein (CRP) in 10% human serum. This work explores the tremendous influence of the chip interfacial structure on the OIRD sensitivity and proposes a rational interfacial engineering strategy to boost the performance of the label-free OIRD based microarray and other bio-devices.
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Affiliation(s)
- Xiaoyi Li
- Key Laboratory of Luminescence Analysis and Molecular Sensing (Southwest University), Ministry of Education, School of Materials and Energy, Southwest University, Chongqing 400715, P. R. China.
| | - Zhihao Feng
- Key Laboratory of Luminescence Analysis and Molecular Sensing (Southwest University), Ministry of Education, School of Materials and Energy, Southwest University, Chongqing 400715, P. R. China.
| | - Changxiang Fang
- Key Laboratory of Luminescence Analysis and Molecular Sensing (Southwest University), Ministry of Education, School of Materials and Energy, Southwest University, Chongqing 400715, P. R. China.
| | - Yunpeng Wei
- Key Laboratory of Luminescence Analysis and Molecular Sensing (Southwest University), Ministry of Education, School of Materials and Energy, Southwest University, Chongqing 400715, P. R. China.
| | - Dandan Ji
- Key Laboratory of Luminescence Analysis and Molecular Sensing (Southwest University), Ministry of Education, School of Materials and Energy, Southwest University, Chongqing 400715, P. R. China.
| | - Weihua Hu
- Key Laboratory of Luminescence Analysis and Molecular Sensing (Southwest University), Ministry of Education, School of Materials and Energy, Southwest University, Chongqing 400715, P. R. China.
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6
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Recent advances in surface plasmon resonance imaging and biological applications. Talanta 2023; 255:124213. [PMID: 36584617 DOI: 10.1016/j.talanta.2022.124213] [Citation(s) in RCA: 12] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2022] [Revised: 12/19/2022] [Accepted: 12/20/2022] [Indexed: 12/28/2022]
Abstract
Surface Plasmon Resonance Imaging (SPRI) is a robust technique for visualizing refractive index changes, which enables researchers to observe interactions between nanoscale objects in an imaging manner. In the past period, scholars have been attracted by the Prism-Coupled and Non-prism Coupled configurations of SPRI and have published numerous experimental results. This review describes the principle of SPRI and discusses recent developments in Prism-Coupled and Non-prism Coupled SPRI techniques in detail, respectively. And then, major advances in biological applications of SPRI are reviewed, including four sub-fields (cells, viruses, bacteria, exosomes, and biomolecules). The purpose is to briefly summarize the recent advances of SPRI and provide an outlook on the development of SPRI in various fields.
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Vashistha N, Abuleil MJ, Shrivastav AM, Bajaj A, Abdulhalim I. Real-Time Ellipsometric Surface Plasmon Resonance Sensor Using Polarization Camera May Provide the Ultimate Detection Limit. BIOSENSORS 2023; 13:173. [PMID: 36831938 PMCID: PMC9953146 DOI: 10.3390/bios13020173] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/15/2022] [Revised: 01/10/2023] [Accepted: 01/13/2023] [Indexed: 06/18/2023]
Abstract
Ellipsometric Surface Plasmon Resonance (SPR) sensors are known for their relatively simple optical configuration compared to interferometric and optical heterodyne phase interrogation techniques. However, most of the previously explored ellipsometric SPR sensors based on intensity measurements are limited by their real-time applications because phase or polarization shifts are conducted serially. Here we present an ellipsometric SPR sensor based on a Kretschmann-Raether (KR) diverging beam configuration and a pixelated microgrid polarization camera. The proposed methodology has the advantage of real-time and higher precision sensing applications. The short-term stability of the measurement using the ellipsometric parameters tanψ and cos(Δ) is found to be superior over direct SPR or intensity measurements, particularly with fluctuating sources such as laser diodes. Refractive index and dynamic change measurements in real-time are presented together with Bovine Serum Albumin (BSA)-anti-BSA antibody binding to demonstrate the potential of the developed sensor for biological sensing applications with a resolution of sub-nM and down to pM with additional optimization. The analysis shows that this approach may provide the ultimate detection limit for SPR sensors.
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Dong T, Han C, Jiang M, Zhang T, Kang Q, Wang P, Zhou F. A Four-Channel Surface Plasmon Resonance Sensor Functionalized Online for Simultaneous Detections of Anti-SARS-CoV-2 Antibody, Free Viral Particles, and Neutralized Viral Particles. ACS Sens 2022; 7:3560-3570. [PMID: 36382569 DOI: 10.1021/acssensors.2c02067] [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: 11/18/2022]
Abstract
Current tests for severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) detect either the constituent nucleic acids/proteins of the viral particles or antibodies specific to the virus, but cannot provide information about viral neutralization by an antibody and the efficacy of an antibody. Such information is important about individuals' vulnerability to severe symptoms or their likelihood of showing no symptoms. We immobilized online SARS-CoV-2 spike (S1) protein and angiotensin-converting enzyme 2 (ACE2) into separate surface plasmon resonance (SPR) channels of a tris-nitrilotriacetic acid (tris-NTA) chip to simultaneously detect the anti-S1 antibody and viral particles in serum samples. In addition, with a high-molecular-weight-cutoff filter, we separated the neutralized viral particles from the free antibody molecules and used a sensing channel immobilized with Protein G to determine antibody-neutralized viral particles. The optimal density of probe molecules in each fluidic channel can be precisely controlled through the closure and opening of the specific ports. By utilizing the high surface density of ACE2, multiple assays can be carried out without regenerations. These three species can be determined with a short analysis time (<12 min per assay) and excellent sensor-to-sensor/cycle-to-cycle reproducibility (RSD < 5%). When coupled with an autosampler, continuous assays can be performed in an unattended manner at a single chip for up to 6 days. Such a sensor capable of assaying serum samples containing the three species at different levels provides additional insights into the disease status and immunity of persons being tested, which should be helpful for containing the SARS-CoV-2 spread during the era of incessant viral mutations.
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Affiliation(s)
- Tianbao Dong
- Institute of Surface Analysis and Chemical Biology, University of Jinan, Jinan, Shandong, P. R. China, 250022
| | - Chaowei Han
- Institute of Surface Analysis and Chemical Biology, University of Jinan, Jinan, Shandong, P. R. China, 250022
| | - Meng Jiang
- Institute of Surface Analysis and Chemical Biology, University of Jinan, Jinan, Shandong, P. R. China, 250022
| | - Tiantian Zhang
- University Hospital, University of Jinan, Jinan, Shandong, P. R. China, 250022
| | - Qing Kang
- Institute of Surface Analysis and Chemical Biology, University of Jinan, Jinan, Shandong, P. R. China, 250022
| | - Pengcheng Wang
- Institute of Surface Analysis and Chemical Biology, University of Jinan, Jinan, Shandong, P. R. China, 250022
| | - Feimeng Zhou
- Institute of Surface Analysis and Chemical Biology, University of Jinan, Jinan, Shandong, P. R. China, 250022
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Li X, Fang C, Feng Z, Li J, Li Y, Hu W. Label-free OIRD microarray chips with a nanostructured sensing interface: enhanced sensitivity and mechanism. LAB ON A CHIP 2022; 22:3910-3919. [PMID: 36097822 DOI: 10.1039/d2lc00671e] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Oblique-incidence reflectivity difference (OIRD) is a novel optical technique for protein microarray detection with the characteristics of being real-time, label-free, high-throughput and compatible with arbitrary chip substrates. It is necessary yet challenging to improve the sensitivity of the OIRD microarray and gain a clear understanding of the enhancement mechanism for practical applications. In this study, we report a microarray chip specifically designed for OIRD to improve its sensitivity by using an electrochemically etched nanostructured fluorine-doped tin oxide (FTO) slide as the substrate. Compared with chips printed on a conventional glass slide and pristine FTO, the OIRD sensitivity and signal-to-noise ratio of this microarray are significantly improved, reaching a limit of detection (LOD) as low as 50 ng mL-1 for the streptavidin target in 10% human serum, which is one order of magnitude lower than that of the glass-based chip. On-chip ELISA and theoretical calculation reveal that the enhanced sensitivity is not only because of its higher capture efficiency towards the target, but also benefits from the optical enhancement enabled by its unique nanostructured sensing interface. This work provides a new universal strategy for designing high performance OIRD-based chips via rational interfacial engineering, thus paving the way to a label-free OIRD immunoassay and real-time analysis of biomolecular interactions.
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Affiliation(s)
- Xiaoyi Li
- Key Laboratory of Luminescent and Real-Time Analytical Chemistry (Southwest University), Ministry of Education, School of Materials and Energy, Southwest University, Chongqing 400715, China.
| | - Changxiang Fang
- Key Laboratory of Luminescent and Real-Time Analytical Chemistry (Southwest University), Ministry of Education, School of Materials and Energy, Southwest University, Chongqing 400715, China.
| | - Zhihao Feng
- Key Laboratory of Luminescent and Real-Time Analytical Chemistry (Southwest University), Ministry of Education, School of Materials and Energy, Southwest University, Chongqing 400715, China.
| | - Junying Li
- Key Laboratory of Luminescent and Real-Time Analytical Chemistry (Southwest University), Ministry of Education, School of Materials and Energy, Southwest University, Chongqing 400715, China.
| | - Yan Li
- Analytical & Testing Center, Southwest University, Chongqing 400715, China
| | - Weihua Hu
- Key Laboratory of Luminescent and Real-Time Analytical Chemistry (Southwest University), Ministry of Education, School of Materials and Energy, Southwest University, Chongqing 400715, China.
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10
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DNA walking system integrated with enzymatic cleavage reaction for sensitive surface plasmon resonance detection of miRNA. Sci Rep 2022; 12:16093. [PMID: 36167754 PMCID: PMC9515148 DOI: 10.1038/s41598-022-20453-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2022] [Accepted: 09/13/2022] [Indexed: 11/20/2022] Open
Abstract
Abnormal expression levels of miRNA are associated with various tumor diseases, for example, glioma tumors are characterized by the up-regulation of miRNA-182. Surface plasmon resonance (SPR) assay for miRNA-182 from glioma patients was performed via DNA walking amplification strategy. The duplex between aminated swing arm DNA (swDNA) and block DNA (blDNA), and aminated track DNA (trDNA) with a biotin tag were tethered on the poly(ethylene glycol) (PEG)-modified chips. Upon formation of miRNA/blDNA duplex, the SPR signal decreased with the walking process of swDNA, as the biotinylated fragment of trDNA (biotin-TTGGAGT) was detached from the sensor surface caused by the nicking endonuclease Nb.BbvCI. Such a repeated hybridization and cleavage cycle occurred continuously and the detachment of more biotinylated fragments of trDNA from the chips led to the attachment of fewer streptavidin (SA) molecules and then smaller SPR signals. MiRNA-182 with concentrations ranging from 5.0 fM to 1.0 pM could be readily determined and a detection limit of 0.62 fM was achieved. The proposed method was highly selective and possessed remarkable capability for evaluating the expression levels of miRNA-182 in serum samples from healthy donors and glioma patients. The sensing protocol holds great promise for early diagnosis of cancer patients.
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11
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Li M, Xu J, Zheng Q, Guo C, Chen Y. Chemical-Based Surface Plasmon Resonance Imaging of Fingerprints. Anal Chem 2022; 94:7238-7245. [PMID: 35549090 DOI: 10.1021/acs.analchem.2c00389] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Fingerprints are extremely useful in personal identification; however, they are usually based on physical rather than chemical images because it remains a challenge to reveal a clear chemical fingerprint easily and sensitively. Herein, a surface plasmon resonance imaging (SPRi) method, combined with a chemically selective stepwise signal amplification (CS3A) strategy, is proposed to chemically image fingerprints with adjustable sensitivity and clarity. High-fidelity glucose-associated fingerprint images were obtained at five to seven cycles of CS3A based on the recognition reaction of concanavalin A (ConA) with dextran. The method is also extendable to image substances that possess and/or can be tagged with ConA- or dextran-recognizable groups. For demonstration, SPRi of carboxylic substances was conducted by amidating the carboxyl group with glucosamine to enable the ConA-based CS3A. Glucose- and carboxyl-based fingerprints were simultaneously and clearly imaged, allowing us to perform quantitative analysis of the representative of either glucose or amino acid (e.g., serine) or both. The curves measured from the standard spots were linear in the ranges of 1-4000 μM for glucose and 3.2-4000 μM for serine, with linear correlated coefficients of 0.9979 and 0.9962, respectively. It was then applied to the study of metabolic secretions in fingerprints during running exercise, yielding variation tendencies similar to those measured from sweat samples in the literature. As a noninvasive tool, the CS3A-coupled SPRi reveals both clear images of fingerprints and quantitative chemical information, and it is anticipated to become a competitive new method for chemically imaging fingerprints.
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Affiliation(s)
- Mingjie Li
- Key Laboratory of Analytical Chemistry for Living Biosystems; CAS Research/Education Center for Excellence in Moleclar Sciences, Institute of Chemistry Chinese Academy of Sciences, Beijing 100190, China.,University of Chinese Academy of Sciences, Beijing 100049, China
| | - Jiying Xu
- Key Laboratory of Analytical Chemistry for Living Biosystems; CAS Research/Education Center for Excellence in Moleclar Sciences, Institute of Chemistry Chinese Academy of Sciences, Beijing 100190, China.,University of Chinese Academy of Sciences, Beijing 100049, China
| | - Qingfeng Zheng
- Key Laboratory of Analytical Chemistry for Living Biosystems; CAS Research/Education Center for Excellence in Moleclar Sciences, Institute of Chemistry Chinese Academy of Sciences, Beijing 100190, China.,University of Chinese Academy of Sciences, Beijing 100049, China
| | - Chao Guo
- Key Laboratory of Analytical Chemistry for Living Biosystems; CAS Research/Education Center for Excellence in Moleclar Sciences, Institute of Chemistry Chinese Academy of Sciences, Beijing 100190, China.,University of Chinese Academy of Sciences, Beijing 100049, China
| | - Yi Chen
- Key Laboratory of Analytical Chemistry for Living Biosystems; CAS Research/Education Center for Excellence in Moleclar Sciences, Institute of Chemistry Chinese Academy of Sciences, Beijing 100190, China.,National & Local Joint Engineering Research Center for Mineral Salt Deep Utilization, Huaiyin Institute of Technology, Huaian 223003, China.,University of Chinese Academy of Sciences, Beijing 100049, China
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12
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Integration of a multichannel surface plasmon resonance sensor chip and refractive index matching film array for protein detection in human urine. Talanta 2022; 246:123533. [DOI: 10.1016/j.talanta.2022.123533] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2022] [Revised: 04/30/2022] [Accepted: 05/05/2022] [Indexed: 11/22/2022]
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13
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Che C, Xue R, Li N, Gupta P, Wang X, Zhao B, Singamaneni S, Nie S, Cunningham BT. Accelerated Digital Biodetection Using Magneto-plasmonic Nanoparticle-Coupled Photonic Resonator Absorption Microscopy. ACS NANO 2022; 16:2345-2354. [PMID: 35040633 DOI: 10.1021/acsnano.1c08569] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
Rapid, ultrasensitive, and selective quantification of circulating microRNA (miRNA) biomarkers in body fluids is increasingly deployed in early cancer diagnosis, prognosis, and therapy monitoring. While nanoparticle tags enable detection of nucleic acid or protein biomarkers with digital resolution and subfemtomolar detection limits without enzymatic amplification, the response time of these assays is typically dominated by diffusion-limited transport of the analytes or nanotags to the biosensor surface. Here, we present a magnetic activate capture and digital counting (mAC+DC) approach that utilizes magneto-plasmonic nanoparticles (MPNPs) to accelerate single-molecule sensing, demonstrated by miRNA detection via toehold-mediated strand displacement. Spiky Fe3O4@Au MPNPs with immobilized target-specific probes are "activated" by binding with miRNA targets, followed by magnetically driven transport through the bulk fluid toward nanoparticle capture probes on a photonic crystal (PC). By spectrally matching the localized surface plasmon resonance of the MPNPs to the PC-guided resonance, each captured MPNP locally quenches the PC reflection efficiency, thus enabling captured MPNPs to be individually visualized with high contrast for counting. We demonstrate quantification of the miR-375 cancer biomarker directly from unprocessed human serum with a 1 min response time, a detection limit of 61.9 aM, a broad dynamic range (100 aM to 10 pM), and a single-base mismatch selectivity. The approach is well-suited for minimally invasive biomarker quantification, enabling potential applications in point-of-care testing with short sample-to-answer time.
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Affiliation(s)
- Congnyu Che
- Department of Bioengineering, University of Illinois at Urbana─Champaign, Urbana, Illinois 61801, United States
- Nick Holonyak Micro and Nanotechnology Laboratory, University of Illinois at Urbana─Champaign, Urbana, Illinois 61801, United States
| | - Ruiyang Xue
- Department of Materials Science and Engineering, University of Illinois at Urbana─Champaign, Urbana, Illinois 61801, United States
| | - Nantao Li
- Nick Holonyak Micro and Nanotechnology Laboratory, University of Illinois at Urbana─Champaign, Urbana, Illinois 61801, United States
- Department of Electrical and Computer Engineering, University of Illinois at Urbana─Champaign, Urbana, Illinois 61801, United States
| | - Prashant Gupta
- Department of Mechanical Engineering and Materials Science, Institute of Materials Science and Engineering, Washington University in St. Louis, St Louis, Missouri 63031, United States
| | - Xiaojing Wang
- Nick Holonyak Micro and Nanotechnology Laboratory, University of Illinois at Urbana─Champaign, Urbana, Illinois 61801, United States
- Carl R. Woese Institute for Genomic Biology, University of Illinois at Urbana─Champaign, Urbana, Illinois 61801, United States
| | - Bin Zhao
- Nick Holonyak Micro and Nanotechnology Laboratory, University of Illinois at Urbana─Champaign, Urbana, Illinois 61801, United States
- Carl R. Woese Institute for Genomic Biology, University of Illinois at Urbana─Champaign, Urbana, Illinois 61801, United States
| | - Srikanth Singamaneni
- Department of Mechanical Engineering and Materials Science, Institute of Materials Science and Engineering, Washington University in St. Louis, St Louis, Missouri 63031, United States
| | - Shuming Nie
- Department of Bioengineering, University of Illinois at Urbana─Champaign, Urbana, Illinois 61801, United States
- Department of Materials Science and Engineering, University of Illinois at Urbana─Champaign, Urbana, Illinois 61801, United States
- Department of Electrical and Computer Engineering, University of Illinois at Urbana─Champaign, Urbana, Illinois 61801, United States
- Department of Chemistry, University of Illinois at Urbana─Champaign, Urbana, Illinois 61801, United States
| | - Brian T Cunningham
- Department of Bioengineering, University of Illinois at Urbana─Champaign, Urbana, Illinois 61801, United States
- Nick Holonyak Micro and Nanotechnology Laboratory, University of Illinois at Urbana─Champaign, Urbana, Illinois 61801, United States
- Department of Electrical and Computer Engineering, University of Illinois at Urbana─Champaign, Urbana, Illinois 61801, United States
- Carl R. Woese Institute for Genomic Biology, University of Illinois at Urbana─Champaign, Urbana, Illinois 61801, United States
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14
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Jiang C, Fu Y, Liu G, Shu B, Davis J, Tofaris GK. Multiplexed Profiling of Extracellular Vesicles for Biomarker Development. NANO-MICRO LETTERS 2021; 14:3. [PMID: 34855021 PMCID: PMC8638654 DOI: 10.1007/s40820-021-00753-w] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/08/2021] [Accepted: 10/22/2021] [Indexed: 05/09/2023]
Abstract
Extracellular vesicles (EVs) are cell-derived membranous particles that play a crucial role in molecular trafficking, intercellular transport and the egress of unwanted proteins. They have been implicated in many diseases including cancer and neurodegeneration. EVs are detected in all bodily fluids, and their protein and nucleic acid content offers a means of assessing the status of the cells from which they originated. As such, they provide opportunities in biomarker discovery for diagnosis, prognosis or the stratification of diseases as well as an objective monitoring of therapies. The simultaneous assaying of multiple EV-derived markers will be required for an impactful practical application, and multiplexing platforms have evolved with the potential to achieve this. Herein, we provide a comprehensive overview of the currently available multiplexing platforms for EV analysis, with a primary focus on miniaturized and integrated devices that offer potential step changes in analytical power, throughput and consistency.
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Affiliation(s)
- Cheng Jiang
- Nuffield Department of Clinical Neurosciences, New Biochemistry Building, University of Oxford, Oxford, OX1 3QU, UK.
- Department of Chemistry, University of Oxford, Oxford, OX1 3QZ, UK.
- Kavli Institute for Nanoscience Discovery, New Biochemistry Building, University of Oxford, Oxford, UK.
| | - Ying Fu
- Department of Chemistry, University of Oxford, Oxford, OX1 3QZ, UK
| | - Guozhen Liu
- School of Life and Health Sciences, The Chinese University of Hong Kong, Shenzhen, 518172, People's Republic of China
| | - Bowen Shu
- Dermatology Hospital, Southern Medical University, Guangzhou, 510091, People's Republic of China
| | - Jason Davis
- Department of Chemistry, University of Oxford, Oxford, OX1 3QZ, UK.
| | - George K Tofaris
- Nuffield Department of Clinical Neurosciences, New Biochemistry Building, University of Oxford, Oxford, OX1 3QU, UK.
- Kavli Institute for Nanoscience Discovery, New Biochemistry Building, University of Oxford, Oxford, UK.
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15
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Li MC, Chen KR, Kuo CC, Lin YX, Su LC. A Simple Phase-Sensitive Surface Plasmon Resonance Sensor Based on Simultaneous Polarization Measurement Strategy. SENSORS 2021; 21:s21227615. [PMID: 34833688 PMCID: PMC8622745 DOI: 10.3390/s21227615] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/03/2021] [Revised: 11/10/2021] [Accepted: 11/12/2021] [Indexed: 11/27/2022]
Abstract
The SPR phenomenon results in an abrupt change in the optical phase such that one can measure the phase shift of the reflected light as a sensing parameter. Moreover, many studies have demonstrated that the phase changes more acutely than the intensity, leading to a higher sensitivity to the refractive index change. However, currently, the optical phase cannot be measured directly because of its high frequency; therefore, investigators usually have to use complicated techniques for the extraction of phase information. In this study, we propose a simple and effective strategy for measuring the SPR phase shift based on phase-shift interferometry. In this system, the polarization-dependent interference signals are recorded simultaneously by a pixelated polarization camera in a single snapshot. Subsequently, the phase information can be effortlessly acquired by a phase extraction algorithm. Experimentally, the proposed phase-sensitive SPR sensor was successfully applied for the detection of small molecules of glyphosate, which is the most frequently used herbicide worldwide. Additionally, the sensor exhibited a detection limit of 15 ng/mL (0.015 ppm). Regarding its simplicity and effectiveness, we believe that our phase-sensitive SPR system presents a prospective method for acquiring phase signals.
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Affiliation(s)
- Meng-Chi Li
- Thin Film Technology Center, National Central University, Taoyuan 320317, Taiwan; (M.-C.L.); (C.-C.K.)
- Optical Sciences Center, National Central University, Taoyuan 320317, Taiwan
| | - Kai-Ren Chen
- Department of Optics and Photonics, National Central University, Taoyuan 320317, Taiwan;
| | - Chien-Cheng Kuo
- Thin Film Technology Center, National Central University, Taoyuan 320317, Taiwan; (M.-C.L.); (C.-C.K.)
- Department of Optics and Photonics, National Central University, Taoyuan 320317, Taiwan;
| | - Yu-Xen Lin
- TeraOptics Corporation, Taoyuan 32472, Taiwan;
| | - Li-Chen Su
- General Education Center, Ming Chi University of Technology, New Taipei 243303, Taiwan
- Organic Electronics Research Center, Ming Chi University of Technology, New Taipei 243303, Taiwan
- Correspondence:
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16
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Aoki H. Sensors with Highly Ordered Nucleotides. ANAL SCI 2021; 37:1191-1192. [PMID: 34511541 DOI: 10.2116/analsci.highlights2109] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Affiliation(s)
- Hiroshi Aoki
- National Institute of Advanced Industrial Science and Technology (AIST)
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17
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Non-Coding RNA-Based Biosensors for Early Detection of Liver Cancer. Biomedicines 2021; 9:biomedicines9080964. [PMID: 34440168 PMCID: PMC8391662 DOI: 10.3390/biomedicines9080964] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2021] [Revised: 07/22/2021] [Accepted: 08/01/2021] [Indexed: 12/27/2022] Open
Abstract
Primary liver cancer is an aggressive, lethal malignancy that ranks as the fourth leading cause of cancer-related death worldwide. Its 5-year mortality rate is estimated to be more than 95%. This significant low survival rate is due to poor diagnosis, which can be referred to as the lack of sufficient and early-stage detection methods. Many liver cancer-associated non-coding RNAs (ncRNAs) have been extensively examined to serve as promising biomarkers for precise diagnostics, prognostics, and the evaluation of the therapeutic progress. For the simple, rapid, and selective ncRNA detection, various nanomaterial-enhanced biosensors have been developed based on electrochemical, optical, and electromechanical detection methods. This review presents ncRNAs as the potential biomarkers for the early-stage diagnosis of liver cancer. Moreover, a comprehensive overview of recent developments in nanobiosensors for liver cancer-related ncRNA detection is provided.
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18
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Huang Y, Sun T, Liu L, Xia N, Zhao Y, Yi X. Surface plasmon resonance biosensor for the detection of miRNAs by combining the advantages of homogeneous reaction and heterogeneous detection. Talanta 2021; 234:122622. [PMID: 34364431 DOI: 10.1016/j.talanta.2021.122622] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2021] [Revised: 06/04/2021] [Accepted: 06/14/2021] [Indexed: 12/21/2022]
Abstract
The hybridization and enzymolysis reactions for nucleic acid detection were carried out on the chip surface in the traditional surface plasmon resonance (SPR) biosensors. Herein, we proposed an innovative method for microRNA (miRNA) detection in which the hybridization-enzymolysis recycling reactions were performed in solution. Duplex-specific nuclease (DSN) and streptavidin-modified gold nanoparticles (SA-AuNPs) were employed for enhancing the assay sensitivity. In the absence of miRNA, the biotinylated DNA probe (bio-DNA-bio, biotin tags at both the 3' and 5' termini of DNA) was attached to the SA-modified chip through the SA-biotin binding, allowing the capture of SA-AuNPs with the same interaction. As a result, a larger SPR signal was attained. However, in the presence of miRNA, bio-DNA-bio hybridized with miRNA was digested by DSN. In this process, the miRNA strand remained intact and participated in the next hybridization-enzymolysis recycling process. Thus, one miRNA could promote the hydrolysis of many bio-DNA-bio probes and allow the generation of numerous bio-DNA fragments. Meanwhile, the produced bio-DNA competed with the undigested bio-DNA-bio to bind SA on the chip surface. The digestion of bio-DNA-bio and the competitive binding between bio-DNA-bio and bio-DNA led to the attachment of fewer SA-AuNPs and then smaller SPR signals. The change in SPR signal at the concentration as low as 1 fM miRNA has been readily determined. The strategy possessed the advantageous properties of simple operation, fast response, high sensitivity and excellent specificity, serving as a viable means for the fabrication of novel sensing platforms.
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Affiliation(s)
- Yaliang Huang
- College of Chemistry and Chemical Engineering, Anyang Normal University, Anyang, Henan, 455000, People's Republic of China; College of Chemistry and Chemical Engineering, Central South University, Changsha, Hunan, 410083, People's Republic of China
| | - Ting Sun
- College of Chemistry and Chemical Engineering, Anyang Normal University, Anyang, Henan, 455000, People's Republic of China; School of Chemistry and Materials Science, Guizhou Education University, Gao Xin Road 115, Wudang District, Guizhou, 550000, People's Republic of China
| | - Lin Liu
- College of Chemistry and Chemical Engineering, Anyang Normal University, Anyang, Henan, 455000, People's Republic of China
| | - Ning Xia
- College of Chemistry and Chemical Engineering, Anyang Normal University, Anyang, Henan, 455000, People's Republic of China.
| | - Yuehua Zhao
- College of Chemistry and Chemical Engineering, Anyang Normal University, Anyang, Henan, 455000, People's Republic of China
| | - Xinyao Yi
- College of Chemistry and Chemical Engineering, Central South University, Changsha, Hunan, 410083, People's Republic of China.
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19
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Plasmonic sensing, imaging, and stimulation techniques for neuron studies. Biosens Bioelectron 2021; 182:113150. [PMID: 33774432 DOI: 10.1016/j.bios.2021.113150] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2020] [Revised: 03/02/2021] [Accepted: 03/04/2021] [Indexed: 12/21/2022]
Abstract
Studies to understand the structure, functions, and electrophysiological properties of neurons have been conducted at the frontmost end of neuroscience. Such studies have led to the active development of high-performance research tools for exploring the neurobiology at the cellular and molecular level. Following this trend, research and application of plasmonics, which is a technology employed in high-sensitivity optical biosensors and high-resolution imaging, is essential for studying neurons, as plasmonic nanoprobes can be used to stimulate specific areas of cells. In this study, three plasmonic modalities were explored as tools to study neurons and their responses: (1) plasmonic sensing of neuronal activities and neuron-related chemicals; (2) performance-improved optical imaging of neurons using plasmonic enhancements; and (3) plasmonic neuromodulations. Through a detailed investigation of these plasmonic modalities and research subjects that can be combined with them, it was confirmed that plasmonic sensing, imaging, and stimulation techniques have the potential to be effectively employed for the study of neurons and understanding their specific molecular activities.
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20
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Liang Y, Lehrich BM, Zheng S, Lu M. Emerging methods in biomarker identification for extracellular vesicle-based liquid biopsy. J Extracell Vesicles 2021; 10:e12090. [PMID: 34012517 PMCID: PMC8114032 DOI: 10.1002/jev2.12090] [Citation(s) in RCA: 77] [Impact Index Per Article: 25.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2020] [Revised: 03/17/2021] [Accepted: 04/13/2021] [Indexed: 12/13/2022] Open
Abstract
Extracellular vesicles (EVs) are released by many cell types and distributed within various biofluids. EVs have a lipid membrane-confined structure that allows for carrying unique molecular information originating from their parent cells. The species and quantity of EV cargo molecules, including nucleic acids, proteins, lipids, and metabolites, may vary largely owing to their parent cell types and the pathophysiologic status. Such heterogeneity in EV populations provides immense challenges to researchers, yet allows for the possibility to prognosticate the pathogenesis of a particular tissue from unique molecular signatures of dispersing EVs within biofluids. However, the inherent nature of EV's small size requires advanced methods for EV purification and evaluation from the complex biofluid. Recently, the interdisciplinary significance of EV research has attracted growing interests, and the EV analytical platforms for their diagnostic prospect have markedly progressed. This review summarizes the recent advances in these EV detection techniques and methods with the intention of translating an EV-based liquid biopsy into clinical practice. This article aims to present an overview of current EV assessment techniques, with a focus on their progress and limitations, as well as an outlook on the clinical translation of an EV-based liquid biopsy that may augment current paradigms for the diagnosis, prognosis, and monitoring the response to therapy in a variety of disease settings.
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Affiliation(s)
- Yaxuan Liang
- Center for Biological Science and Technology, Advanced Institute of Natural SciencesBeijing Normal University at ZhuhaiZhuhaiChina
| | - Brandon M. Lehrich
- Medical Scientist Training ProgramUniversity of Pittsburgh School of Medicine and Carnegie Mellon UniversityPittsburghPennsylvaniaUSA
| | - Siyang Zheng
- Department Biomedical EngineeringCarnegie Mellon UniversityPittsburghPennsylvaniaUSA
- Department of Electrical and Computer EngineeringCarnegie Mellon UniversityPittsburghPennsylvaniaUSA
| | - Mengrou Lu
- Department Biomedical EngineeringCarnegie Mellon UniversityPittsburghPennsylvaniaUSA
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21
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Pan MM, Wang YF, Wang L, Yu X, Xu L. Recent advances in visual detection for cancer biomarkers and infectious pathogens. J Mater Chem B 2021; 9:35-52. [PMID: 33225338 DOI: 10.1039/d0tb01883j] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
It is an urgency to detect infectious pathogens or cancer biomarkers using rapid, simple, convenient and cost-effective methods in complex biological samples. Many existing approaches (traditional virus culture, ELISA or PCR) for the pathogen and biomarker assays face several challenges in the clinical applications that require lengthy time, sophisticated sample pre-treatment and expensive instruments. Due to the simple and rapid detection manner as well as no requirement of expensive equipment, many visual detection methods have been considered to resolve the aforementioned problems. Meanwhile, various new materials and colorimetric/fluorescent methods have been tried to construct new biosensors for infectious pathogens and biomarkers. However, the recent progress of these aspects is rarely reviewed, especially in terms of integration of new materials, microdevice and detection mechanism into the visual detection systems. Herein, we provide a broad field of view to discuss the recent progress in the visual detection of infectious pathogens and cancer biomarkers along with the detection mechanism, new materials, novel detection methods, special targets as well as multi-functional microdevices and systems. The novel visual approaches for the infectious pathogens and biomarkers, such as bioluminescence resonance energy transfer (BRET), metal-induced metallization and clustered regularly interspaced short palindromic repeats (CRISPR)-based biosensors, are discussed. Additionally, recent advancements in visual assays utilizing various new materials for proteins, nucleic acids, viruses, exosomes and small molecules are comprehensively reviewed. Future perspectives on the visual sensing systems for infectious pathogens and cancers are also proposed.
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Affiliation(s)
- Meng-Meng Pan
- Tongji School of Pharmacy, HuaZhong University of Science and Technology, Wuhan 430030, China.
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22
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Jebelli A, Oroojalian F, Fathi F, Mokhtarzadeh A, Guardia MDL. Recent advances in surface plasmon resonance biosensors for microRNAs detection. Biosens Bioelectron 2020; 169:112599. [DOI: 10.1016/j.bios.2020.112599] [Citation(s) in RCA: 30] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2020] [Revised: 08/29/2020] [Accepted: 09/04/2020] [Indexed: 12/12/2022]
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23
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Konopsky V, Mitko T, Aldarov K, Alieva E, Basmanov D, Moskalets A, Matveeva A, Morozova O, Klinov D. Photonic crystal surface mode imaging for multiplexed and high-throughput label-free biosensing. Biosens Bioelectron 2020; 168:112575. [PMID: 32892115 DOI: 10.1016/j.bios.2020.112575] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2020] [Revised: 07/07/2020] [Accepted: 08/28/2020] [Indexed: 02/06/2023]
Abstract
A photonic crystal surface mode imaging (PCSMi) technique is implemented for the simultaneous detection of antibody binding with specific antigens in arrays containing 96- and 384-spots. Like the surface plasmon resonance imaging (SPRi) technique, the presented approach is label-free and permits interrogating an analyte by hundreds of different ligands immobilized in small spots. The adsorption kinetics is recorded with a sub-picogram resolution at every spot simultaneously. Possible implementations of this technique for multiplexed and high-throughput biosensing are discussed.
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Affiliation(s)
- Valery Konopsky
- Institute of Spectroscopy, Fizicheskaya 5, Moscow, Troitsk, 108840, Russia.
| | - Tatiana Mitko
- Federal Research & Clinical Center of Physical-Chemical Medicine of Federal Medical Biological Agency, Malaya Pirogovskaya 1a, Moscow, 119435, Russia
| | - Konstantin Aldarov
- Federal Research & Clinical Center of Physical-Chemical Medicine of Federal Medical Biological Agency, Malaya Pirogovskaya 1a, Moscow, 119435, Russia
| | - Elena Alieva
- Institute of Spectroscopy, Fizicheskaya 5, Moscow, Troitsk, 108840, Russia
| | - Dmitry Basmanov
- Federal Research & Clinical Center of Physical-Chemical Medicine of Federal Medical Biological Agency, Malaya Pirogovskaya 1a, Moscow, 119435, Russia
| | - Aleksandr Moskalets
- Federal Research & Clinical Center of Physical-Chemical Medicine of Federal Medical Biological Agency, Malaya Pirogovskaya 1a, Moscow, 119435, Russia
| | - Ainur Matveeva
- Federal Research & Clinical Center of Physical-Chemical Medicine of Federal Medical Biological Agency, Malaya Pirogovskaya 1a, Moscow, 119435, Russia
| | - Olga Morozova
- Federal Research & Clinical Center of Physical-Chemical Medicine of Federal Medical Biological Agency, Malaya Pirogovskaya 1a, Moscow, 119435, Russia
| | - Dmitry Klinov
- Federal Research & Clinical Center of Physical-Chemical Medicine of Federal Medical Biological Agency, Malaya Pirogovskaya 1a, Moscow, 119435, Russia
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24
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Tian H, Yuan C, Liu Y, Li Z, Xia K, Li M, Xie F, Chen Q, Chen M, Fu W, Zhang Y. A novel quantification platform for point-of-care testing of circulating MicroRNAs based on allosteric spherical nanoprobe. J Nanobiotechnology 2020; 18:158. [PMID: 33129342 PMCID: PMC7603675 DOI: 10.1186/s12951-020-00717-z] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2020] [Accepted: 10/21/2020] [Indexed: 01/08/2023] Open
Abstract
MiRNA-150, a gene regulator that has been revealed to be abnormal expression in non-small cell lung cancer (NSCLC), can be regarded as a serum indicator for diagnosis and monitoring of NSCLC. Herein, a new sort of nanoprobe, termed allosteric spherical nanoprobe, was first developed to sense miRNA-150. Compared with conventional hairpin, this new nanoprobe possesses more enrichment capacity and reaction cross section. Structurally, it consists of magnetic nanoparticles and dual-hairpin. In the absence of miRNA-150, the spherical nanoprobes form hairpin structure through DNA self-assembly, which could promote the Förster resonance energy transfer (FRET) of fluorophore (FAM) and quencher (BHQ1) nearby. However, in the presence of target, the target-probe hybridization can open the hairpin and form the active “Y” structure which separated fluorophore and quencher to yield “signal on” fluorescence. In the manner of multipoint fluorescence detection, the target-bound allosteric spherical nanoprobe could provide high detection sensitivity with a linear range of 100 fM to 10 nM and a detection limit of 38 fM. More importantly, the proposed method can distinguish the expression of serum miRNA-150 among NSCLC patients and healthy people. Finally, we hoped that the potential bioanalytical application of this nanoprobe strategy will pave the way for point-of-care testing (POCT). ![]()
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Affiliation(s)
- Huiyan Tian
- Department of Laboratory Medicine, First Affiliated Hospital, Third Military Medical University (Army Medical University), Chongqing, China
| | - Changjing Yuan
- Department of Laboratory Medicine, First Affiliated Hospital, Third Military Medical University (Army Medical University), Chongqing, China
| | - Yu Liu
- Department of Laboratory Medicine, First Affiliated Hospital, Third Military Medical University (Army Medical University), Chongqing, China
| | - Zhi Li
- Department of Laboratory Medicine, First Affiliated Hospital, Third Military Medical University (Army Medical University), Chongqing, China
| | - Ke Xia
- Department of Laboratory Medicine, First Affiliated Hospital, Third Military Medical University (Army Medical University), Chongqing, China
| | - Mengya Li
- Department of Laboratory Medicine, First Affiliated Hospital, Third Military Medical University (Army Medical University), Chongqing, China
| | - Fengxin Xie
- Department of Laboratory Medicine, First Affiliated Hospital, Third Military Medical University (Army Medical University), Chongqing, China
| | - Qinghai Chen
- Department of Laboratory Medicine, First Affiliated Hospital, Third Military Medical University (Army Medical University), Chongqing, China
| | - Ming Chen
- Department of Laboratory Medicine, First Affiliated Hospital, Third Military Medical University (Army Medical University), Chongqing, China
| | - Weiling Fu
- Department of Laboratory Medicine, First Affiliated Hospital, Third Military Medical University (Army Medical University), Chongqing, China.
| | - Yang Zhang
- Department of Laboratory Medicine, Chongqing University Cancer Hospital, Chongqing, China.
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25
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Zhang Q, Wu Y, Xu Q, Ma F, Zhang CY. Recent advances in biosensors for in vitro detection and in vivo imaging of DNA methylation. Biosens Bioelectron 2020; 171:112712. [PMID: 33045657 DOI: 10.1016/j.bios.2020.112712] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2020] [Revised: 09/25/2020] [Accepted: 10/07/2020] [Indexed: 02/08/2023]
Abstract
DNA methylation is the predominant epigenetic modification that participates in many fundamental cellular processes through posttranscriptional regulation of gene expression. Aberrant DNA methylation is closely associated with a variety of human diseases including cancers. Therefore, accurate and sensitive detection of DNA methylation may greatly facilitate the epigenetic biological researches and disease diagnosis. In recent years, a series of novel biosensors have been developed for highly sensitive detection of DNA methylation, but an overview of recent advances in biosensors for in vitro detection and especially live-cell imaging of DNA methylation is absent. In this review, we summarize the emerging biosensors for in vitro and in vivo DNA methylation assays in the past five years (2015-2020). Based on the signal types, the biosensors for in vitro DNA methylation assay are classified into five categories including fluorescent, electrochemical, colorimetric, surface enhanced Raman spectroscopy, mass spectrometry, and surface plasmon resonance biosensors, while the biosensors for in vivo DNA methylation assay mainly rely on fluorescent imaging. We review the strategies, features and applications of these biosensors, and provide a new insight into the challenges and future directions in this area.
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Affiliation(s)
- Qian Zhang
- College of Chemistry, Chemical Engineering and Materials Science, Collaborative Innovation Center of Functionalized Probes for Chemical Imaging in Universities of Shandong, Key Laboratory of Molecular and Nano Probes, Ministry of Education, Shandong Provincial Key Laboratory of Clean Production of Fine Chemicals, Shandong Normal University, Jinan, 250014, China
| | - Yanxia Wu
- Department of Pathology and Pathological Diagnosis & Research Center, Affiliated Hospital of Guangdong Medical University, Zhanjiang, 524001, China
| | - Qinfeng Xu
- School of Food and Biological Engineering, National R&D Center for Goat Dairy Products Processing Technology, Shaanxi University of Science and Technology, Xi'an, 710021, China
| | - Fei Ma
- College of Chemistry, Chemical Engineering and Materials Science, Collaborative Innovation Center of Functionalized Probes for Chemical Imaging in Universities of Shandong, Key Laboratory of Molecular and Nano Probes, Ministry of Education, Shandong Provincial Key Laboratory of Clean Production of Fine Chemicals, Shandong Normal University, Jinan, 250014, China.
| | - Chun-Yang Zhang
- College of Chemistry, Chemical Engineering and Materials Science, Collaborative Innovation Center of Functionalized Probes for Chemical Imaging in Universities of Shandong, Key Laboratory of Molecular and Nano Probes, Ministry of Education, Shandong Provincial Key Laboratory of Clean Production of Fine Chemicals, Shandong Normal University, Jinan, 250014, China.
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Chen D, Wang X, Zhang K, Cao Y, Tu J, Xiao D, Wu Q. Glucose photoelectrochemical enzyme sensor based on competitive reaction of ascorbic acid. Biosens Bioelectron 2020; 166:112466. [DOI: 10.1016/j.bios.2020.112466] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2020] [Revised: 07/16/2020] [Accepted: 07/18/2020] [Indexed: 02/07/2023]
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Aoki H, Tani H, Nakamura K, Sato H, Torimura M, Nakazato T. MicroRNA biomarkers for chemical hazard screening identified by RNA deep sequencing analysis in mouse embryonic stem cells. Toxicol Appl Pharmacol 2020; 392:114929. [PMID: 32105654 DOI: 10.1016/j.taap.2020.114929] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2019] [Revised: 02/18/2020] [Accepted: 02/21/2020] [Indexed: 12/19/2022]
Abstract
We investigated the responses of microRNAs (miRNAs) using mouse embryonic stem cells (mESCs) exposed to nine chemicals (bis(2-ethylhexyl)phthalate, p-cresol, p-dichlorobenzene, phenol, pyrocatecol, chloroform, tri-n-butyl phosphate, trichloroethylene, and benzene), which are listed as "Class I Designated Chemical Substances" from the Japan Pollutant Release and Transfer Register. Using deep sequencing analysis (RNA-seq), several miRNAs were identified that show a substantial response to general chemical toxicity (i.e., to these nine chemicals considered as a group) and several miRNA biomarkers that show a substantial and specific response to benzene. The functions of the identified miRNAs were investigated in accordance with Gene Ontology terms of their predicted target genes, indicating regulation of cellular processes. We compared the results with those for the long non-coding RNAs (ncRNAs) and mRNAs reported in our previous studies in addition to previously identified miRNAs that are either up- or down-regulated in response to the benzene as stimuli. We also observed that the changes in expression of miRNAs were smaller than those for long ncRNAs and mRNAs. Taken together the current and previous results revealed that toxic chemical stimuli regulate the expression of miRNAs. We believe that the use of miRNAs, including the thus identified miRNAs, as biomarkers contribute to predicting the potential toxicity of particular chemicals or identifying human individuals that have been exposed to chemical hazards.
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Affiliation(s)
- Hiroshi Aoki
- Environmental Management Research Institute, National Institute of Advanced Industrial Science and Technology (AIST), 16-1 Onogawa, Tsukuba, Ibaraki 305-8569, Japan.
| | - Hidenori Tani
- Environmental Management Research Institute, National Institute of Advanced Industrial Science and Technology (AIST), 16-1 Onogawa, Tsukuba, Ibaraki 305-8569, Japan
| | - Kaoru Nakamura
- Environmental Management Research Institute, National Institute of Advanced Industrial Science and Technology (AIST), 16-1 Onogawa, Tsukuba, Ibaraki 305-8569, Japan
| | - Hiroaki Sato
- Research Institute of Sustainable Chemistry, National Institute of Advanced Industrial Science and Technology (AIST), 1-1-1 Higashi, Tsukuba, Ibaraki 305-8565, Japan
| | - Masaki Torimura
- Environmental Management Research Institute, National Institute of Advanced Industrial Science and Technology (AIST), 16-1 Onogawa, Tsukuba, Ibaraki 305-8569, Japan
| | - Tetsuya Nakazato
- Environmental Management Research Institute, National Institute of Advanced Industrial Science and Technology (AIST), 16-1 Onogawa, Tsukuba, Ibaraki 305-8569, Japan
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Chen LC, Wang E, Tai CS, Chiu YC, Li CW, Lin YR, Lee TH, Huang CW, Chen JC, Chen WL. Improving the reproducibility, accuracy, and stability of an electrochemical biosensor platform for point-of-care use. Biosens Bioelectron 2020; 155:112111. [PMID: 32217334 DOI: 10.1016/j.bios.2020.112111] [Citation(s) in RCA: 49] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2019] [Revised: 02/12/2020] [Accepted: 02/18/2020] [Indexed: 11/15/2022]
Abstract
Electrochemical biosensors possess numerous desirable qualities for target detection, such as portability and ease of use, and are often considered for point-of-care (POC) development. Label-free affinity electrochemical biosensors constructed with semiconductor manufacturing technology (SMT)-produced electrodes and a streptavidin biomediator currently display the highest reproducibility, accuracy, and stability in modern biosensors. However, such biosensors still do not meet POC guidelines regarding these three characteristics. The purpose of this research was to resolve the limitations in reproducibility and accuracy caused by problems with production of the biosensors, with the aim of developing a platform capable of producing devices that exceed POC standards. SMT production settings were optimized and bioreceptor immobilization was improved through the use of a unique linker, producing a biosensor with exceptional reproducibility, impressive accuracy, and high stability. Importantly, the three characteristics of the sensors produced using the proposed platform all meet POC standards set by the Clinical and Laboratory Standards Institute (CLSI). This suggests possible approval of the biosensors for POC development. Furthermore, the detection range of the platform was demonstrated by constructing biosensors capable of detecting common POC targets, including circulating tumor cells (CTCs), DNA/RNA, and curcumin, and the devices were optimized for POC use. Overall, the platform developed in this study shows high potential for production of POC biosensors.
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Affiliation(s)
- Lung-Chieh Chen
- Department of Biological Science and Technology, National Chiao Tung University, Hsinchu, Taiwan; Institute of Molecular Medicine and Bioengineering, National Chiao Tung University, Hsinchu, Taiwan
| | - Erick Wang
- Department of Biological Science and Technology, National Chiao Tung University, Hsinchu, Taiwan
| | - Chun-San Tai
- Department of Biological Science and Technology, National Chiao Tung University, Hsinchu, Taiwan; Institute of Molecular Medicine and Bioengineering, National Chiao Tung University, Hsinchu, Taiwan
| | - Yuan-Chen Chiu
- Department of Biological Science and Technology, National Chiao Tung University, Hsinchu, Taiwan; Institute of Molecular Medicine and Bioengineering, National Chiao Tung University, Hsinchu, Taiwan
| | - Chang-Wei Li
- Department of Biological Science and Technology, National Chiao Tung University, Hsinchu, Taiwan; AllBio Life Inc, Taichung, Taiwan
| | - Yan-Ren Lin
- Department of Emergency Medicine, Changhua Christian Hospital, Changhua, Taiwan; School of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan; School of Medicine, Chung Shan Medical University, Taichung, Taiwan
| | - Tsung-Han Lee
- Department of Biological Science and Technology, National Chiao Tung University, Hsinchu, Taiwan; Department of Emergency Medicine, Changhua Christian Hospital, Changhua, Taiwan
| | - Ching-Wen Huang
- Department of Biological Science and Technology, National Chiao Tung University, Hsinchu, Taiwan; Department of Emergency, Shuang Ho Hospital, Taipei Medical University, New Taipei City, Taiwan; Division of Thoracic Surgery, Department of Surgery, School of Medicine, College of Medicine, Taipei Medical University, Taipei, Taiwan
| | - Jung-Chih Chen
- Department of Biological Science and Technology, National Chiao Tung University, Hsinchu, Taiwan; Institute of Biomedical Engineering, National Chiao Tung University, Hsinchu, Taiwan
| | - Wen Liang Chen
- Department of Biological Science and Technology, National Chiao Tung University, Hsinchu, Taiwan.
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Wang X, Lv W, Wu J, Li H, Li F. In situ generated nanozyme-initiated cascade reaction for amplified surface plasmon resonance sensing. Chem Commun (Camb) 2020; 56:4571-4574. [DOI: 10.1039/d0cc01117g] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
A novel nanozyme-amplified surface plasmon resonance (SPR) sensor was successfully developed based on target-induced in situ generation of AuNPs and a AuNP-guided cascade amplification reaction, with Hg2+ as the target analyte.
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Affiliation(s)
- Xin Wang
- College of Chemistry and Pharmaceutical Sciences
- Qingdao Agricultural University
- Qingdao, 266109
- People's Republic of China
| | - Wenxin Lv
- College of Chemistry and Pharmaceutical Sciences
- Qingdao Agricultural University
- Qingdao, 266109
- People's Republic of China
| | - Jiahui Wu
- College of Chemistry and Pharmaceutical Sciences
- Qingdao Agricultural University
- Qingdao, 266109
- People's Republic of China
| | - Haiyin Li
- College of Chemistry and Pharmaceutical Sciences
- Qingdao Agricultural University
- Qingdao, 266109
- People's Republic of China
| | - Feng Li
- College of Chemistry and Pharmaceutical Sciences
- Qingdao Agricultural University
- Qingdao, 266109
- People's Republic of China
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30
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MicroRNA-346 inhibits the growth of glioma by directly targeting NFIB. Cancer Cell Int 2019; 19:294. [PMID: 31807116 PMCID: PMC6857291 DOI: 10.1186/s12935-019-1017-5] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2019] [Accepted: 11/04/2019] [Indexed: 12/16/2022] Open
Abstract
Background Glioma is considered one of the most common tumors and has a poor prognosis. Recently, microRNAs (miRNAs) have been reported to be strongly linked to various human tumors including glioma. In this study, we investigated a new anticancer miRNA, miR-346, to determine the effects and mechanism of miR-346 and its downstream target gene NFIB on tumors. Methods Lentivirus transfection, real-time PCR, western blotting, immunohistochemistry, cell proliferation assays, and mouse experiments were used to examine the relationship between miR-346 and its regulation of NFIB in glioma cells. Results The expression of miR-346 was downregulated in glioma cells. Overexpression of miR-346 arrested the cell cycle of glioma cells and inhibited their proliferation in vitro and in vivo. NFIB was a direct target of miR-346, whose expression was reduced by the miRNA. Overexpression of NFIB reversed all tested functions of miR-346. Conclusion miR-346 inhibited the growth of glioma cells by targeting NFIB and may be a new prognostic and diagnostic biomarker for glioma.
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