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Chen S, Zhao J, Shi B, Xu C, Zhao S. An ultrasensitive chemiluminescence strategy based on a microchip platform for telomerase detection at a single-cell level. Chem Commun (Camb) 2021; 57:3095-3098. [PMID: 33625437 DOI: 10.1039/d1cc00455g] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
An ultrasensitive chemiluminescence strategy based on signal amplification with a microchip platform was proposed to detect telomerase. This strategy was successfully applied to the determination of lysate samples from HL-7702, HeLa, A549 and MCF-7 cell lines with the detection limit lower than 1 HeLa cell.
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Affiliation(s)
- Shengyu Chen
- State Key Laboratory for the Chemistry and Molecular Engineering of Medicinal Resources, Guangxi Normal University, Guilin 541004, China.
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2
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Wang D, Xue W, Ren X, Xu Z. A review on sensing mechanisms and strategies for telomerase activity detection. Trends Analyt Chem 2021. [DOI: 10.1016/j.trac.2020.116115] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
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3
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Kim HY, Lee CY, Kim H, Park KS, Park HG. Portable glucose meter-utilized label-free and washing-free telomerase assay. Analyst 2020; 145:5578-5583. [PMID: 32627768 DOI: 10.1039/d0an00655f] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
We herein describe a portable glucose meter (PGM)-utilized label-free and washing-free method for the facile determination of telomerase activity that relies on the kinase-catalyzed cascade enzymatic reaction (KCER) that transduces the telomerase activity to the glucose level. In the sensor, the telomerase that elongates telomere sequences ((TTAGGG)n) from the 3'-terminus of telomerase substrate primer (TSP) consumes deoxynucleoside triphosphate (dNTP), which serves as a phosphate source for KCER promoted by hexokinase and pyruvate kinase. Thus, the presence of telomerase protects KCER from working effectively, resulting in the maintenance of an initial, high glucose level that is readily determined using hand-held PGM. With this strategy, the telomerase activities in various types of cell lines were successfully determined with high sensitivity. Furthermore, the ability of this method to screen candidate inhibitors for telomerase activity was also verified.
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Affiliation(s)
- Hyo Yong Kim
- Department of Chemical and Biomolecular Engineering (BK21+ Program), KAIST, 291 Daehak-ro, Yuseong-gu, Daejeon 34141, Republic of Korea.
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4
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Liu C, Zhang S, Li X, Xue Q, Jiang W. Multi-code magnetic beads based on DNAzyme-mediated double-cycling amplification for a point-of-care assay of telomerase activity. Analyst 2019; 144:4241-4249. [DOI: 10.1039/c9an00589g] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Development of a reliable and facile telomerase activity assay with high specificity and sensitivity is a central challenge to make telomerase testing a routine part of medical care with respect to cancer.
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Affiliation(s)
- Chunxue Liu
- Department of Chemistry
- Liaocheng University
- Liaocheng
- China
| | - Susu Zhang
- Department of Chemistry
- Liaocheng University
- Liaocheng
- China
| | - Xia Li
- Department of Chemistry
- Liaocheng University
- Liaocheng
- China
- School of Chemistry and Chemical Engineering
| | - Qingwang Xue
- Department of Chemistry
- Liaocheng University
- Liaocheng
- China
- School of Chemistry and Chemical Engineering
| | - Wei Jiang
- School of Chemistry and Chemical Engineering
- Shandong University
- Jinan 250100
- P.R. China
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5
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Li CC, Zhang Y, Liu WJ, Zhang CY. A triple-amplification strategy for sensitive detection of telomerase at the single-cell level. Chem Commun (Camb) 2018; 54:9317-9320. [DOI: 10.1039/c8cc05100c] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
We develop a triple-amplification strategy for sensitive detection of telomerase from cancer cells at the single-cell level.
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Affiliation(s)
- Chen-chen Li
- 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
| | - Yan 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
| | - Wen-jing Liu
- 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
| | - 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
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6
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Tomlinson CG, Sasaki N, Jurczyluk J, Bryan TM, Cohen SB. Quantitative assays for measuring human telomerase activity and DNA binding properties. Methods 2017; 114:85-95. [DOI: 10.1016/j.ymeth.2016.08.002] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2016] [Revised: 08/01/2016] [Accepted: 08/04/2016] [Indexed: 11/27/2022] Open
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7
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Wang W, Huang S, Li J, Rui K, Zhang JR, Zhu JJ. Coupling a DNA-Based Machine with Glucometer Readouts for Amplified Detection of Telomerase Activity in Cancer Cells. Sci Rep 2016; 6:23504. [PMID: 27009555 PMCID: PMC4806334 DOI: 10.1038/srep23504] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2015] [Accepted: 03/03/2016] [Indexed: 01/09/2023] Open
Abstract
The strong correlation between cancer and telomerase activity has inspired the development of new strategies to evaluate telomerase activity. Here, a personal glucose meter (PGM) system that uses DNA-based machine amplification to detect telomerase in cancer cells is reported. In this assay, telomerase elongation products are amplified in the form of another type of product by a DNA-based machine. This process can only be activated by the hybridization of the extended telomerase substrate (TS) probe and the complementary primer in the presence of telomerase. The obtained products are then transformed to glucose-related signals via a three-component assay, which enables the simple use of a PGM to indirectly quantify the telomerase activity. The proposed method realizes sensitive telomerase activity detection down to 20 HeLa cells with a significantly enhanced dynamic range. Additionally, short telomerase elongation products, such as telomerase substrate probes with two repetitive sequences, that cannot be detected using the most widely used telomeric repeat amplification protocol assay were detected.
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Affiliation(s)
- Wenjing Wang
- State Key Laboratory of Analytical Chemistry for Life Science and Collaborative Innovation Center of Chemistry for Life Sciences, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210093, China
| | - Shan Huang
- State Key Laboratory of Analytical Chemistry for Life Science and Collaborative Innovation Center of Chemistry for Life Sciences, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210093, China
- School of Pharmacy, Ningxia Medical University, Yinchuan 750004, China
| | - Jingjing Li
- Department of Radiology, Affiliated Hospital of Xuzhou Medical College, Xuzhou 221006, China
| | - Kai Rui
- State Key Laboratory of Analytical Chemistry for Life Science and Collaborative Innovation Center of Chemistry for Life Sciences, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210093, China
| | - Jian-Rong Zhang
- State Key Laboratory of Analytical Chemistry for Life Science and Collaborative Innovation Center of Chemistry for Life Sciences, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210093, China
- School of Chemistry and Life Science, Nanjing University Jinling College, Nanjing 210089, China
| | - Jun-Jie Zhu
- State Key Laboratory of Analytical Chemistry for Life Science and Collaborative Innovation Center of Chemistry for Life Sciences, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210093, China
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Liu X, Li W, Hou T, Dong S, Yu G, Li F. Homogeneous Electrochemical Strategy for Human Telomerase Activity Assay at Single-Cell Level Based on T7 Exonuclease-Aided Target Recycling Amplification. Anal Chem 2015; 87:4030-6. [DOI: 10.1021/acs.analchem.5b00355] [Citation(s) in RCA: 147] [Impact Index Per Article: 16.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Xiaojuan Liu
- College
of Chemistry and Pharmaceutical Sciences, Qingdao Agricultural University, Qingdao, Shandong 266109, People’s Republic of China
| | - Wei Li
- College
of Chemistry and Pharmaceutical Sciences, Qingdao Agricultural University, Qingdao, Shandong 266109, People’s Republic of China
| | - Ting Hou
- College
of Chemistry and Pharmaceutical Sciences, Qingdao Agricultural University, Qingdao, Shandong 266109, People’s Republic of China
| | - Shanshan Dong
- College
of Chemistry and Pharmaceutical Sciences, Qingdao Agricultural University, Qingdao, Shandong 266109, People’s Republic of China
| | - Guanghui Yu
- College
of Animal Science and Technology, Qingdao Agricultural University, Qingdao, Shandong 266109, People’s Republic of China
| | - Feng Li
- College
of Chemistry and Pharmaceutical Sciences, Qingdao Agricultural University, Qingdao, Shandong 266109, People’s Republic of China
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9
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Iranifam M. Analytical applications of chemiluminescence methods for cancer detection and therapy. Trends Analyt Chem 2014. [DOI: 10.1016/j.trac.2014.03.010] [Citation(s) in RCA: 52] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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10
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Kawamura K, Yaku H, Miyoshi D, Murashima T. A simple “add and measure” FRET-based telomeric tandem repeat sequence detection and telomerase assay method. Org Biomol Chem 2014; 12:936-41. [DOI: 10.1039/c3ob42092b] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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11
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A highly sensitive telomerase activity assay that eliminates false-negative results caused by PCR inhibitors. Molecules 2013; 18:11751-67. [PMID: 24071983 PMCID: PMC6269933 DOI: 10.3390/molecules181011751] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2013] [Revised: 09/05/2013] [Accepted: 09/11/2013] [Indexed: 11/17/2022] Open
Abstract
An assay for telomerase activity based on asymmetric polymerase chain reaction (A-PCR) on magnetic beads (MBs) and subsequent application of cycling probe technology (CPT) is described. In this assay, the telomerase reaction products are immobilized on MBs, which are then washed to remove PCR inhibitors that are commonly found in clinical samples. The guanine-rich sequences (5'-(TTAGGG)n-3') of the telomerase reaction products are then preferentially amplified by A-PCR, and the amplified products are subsequently detected via CPT, where a probe RNA with a fluorophore at the 5' end and a quencher at the 3' end is hydrolyzed by RNase H in the presence of the target DNA. The catalyst-mediated cleavage of the probe RNA enhances fluorescence from the 5' end of the probe. The assay allowed us to successfully detect HeLa cells selectively over normal human dermal fibroblast (NHDF) cells. Importantly, this selectivity produced identical results with regard to detection of HeLa cells in the absence and presence of excess NHDF cells; therefore, this assay can be used for practical clinical applications. The lower limit of detection for HeLa cells was 50 cells, which is lower than that achieved with a conventional telomeric repeat amplification protocol assay. Our assay also eliminated false-negative results caused by PCR inhibitors. Furthermore, we show that this assay is appropriate for screening among G-quadruplex ligands to find those that inhibit telomerase activity.
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Abstract
Human telomerase is a ribonucleoprotein complex that functions as a telomere terminal transferase by adding multiple TTAGGG hexamer repeats using its integral RNA as the template. There is a very strong association between telomerase activity and malignancy in nearly all types of cancer, suggesting that telomerase could be used not only as a diagnostic and prognostic marker but also as a therapeutic target for managing cancer. The significant progress in biomedical telomerase research has necessitated the development of new bioanalytical methods for the rapid, sensitive, and reliable detection of telomerase activity in a particular cell or clinical tissue and body fluids. In this review, we highlight some of the latest methods for identifying telomerase activity and inhibition and discuss some of the challenges for designing innovative telomerase assays. We also summarise the current technologies and speculate on future directions for telomerase testing.
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Affiliation(s)
- Xiaoming Zhou
- MOE Key Laboratory of Laser Life Science & Institute of Laser Life Science, College of Biophotonics, South China Normal University, Guangzhou 510631, China
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13
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Skvortsov DA, Zvereva ME, Rubtsova MP, Pavlova LS, Petrenko AA, Kisseljov FL, Dontsova OA. Optimized detection method of telomerase activity in cancer diagnostics. ACTA ACUST UNITED AC 2010. [DOI: 10.3103/s0027131410030119] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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14
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Bianco S, Musetti C, Waldeck A, Sparapani S, Seitz JD, Krapcho AP, Palumbo M, Sissi C. Bis-phenanthroline derivatives as suitable scaffolds for effective G-quadruplex recognition. Dalton Trans 2010; 39:5833-41. [DOI: 10.1039/c0dt00038h] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
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15
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Zhou X, Xing D, Zhu D, Jia L. Magnetic Bead and Nanoparticle Based Electrochemiluminescence Amplification Assay for Direct and Sensitive Measuring of Telomerase Activity. Anal Chem 2008; 81:255-61. [DOI: 10.1021/ac801914b] [Citation(s) in RCA: 145] [Impact Index Per Article: 9.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Xiaoming Zhou
- MOE Key Laboratory of Laser Life Science and Institute of Laser Life Science, South China Normal University, Guangzhou 510631, China
| | - Da Xing
- MOE Key Laboratory of Laser Life Science and Institute of Laser Life Science, South China Normal University, Guangzhou 510631, China
| | - Debin Zhu
- MOE Key Laboratory of Laser Life Science and Institute of Laser Life Science, South China Normal University, Guangzhou 510631, China
| | - Li Jia
- MOE Key Laboratory of Laser Life Science and Institute of Laser Life Science, South China Normal University, Guangzhou 510631, China
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16
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Keppler BR, Jarstfer MB. A high-throughput assay for a human telomerase protein-human telomerase RNA interaction. Anal Biochem 2006; 353:75-82. [PMID: 16620757 DOI: 10.1016/j.ab.2006.03.027] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2005] [Revised: 03/08/2006] [Accepted: 03/15/2006] [Indexed: 02/06/2023]
Abstract
The rapid rate at which cancer cells divide necessitates a mechanism for telomere maintenance, and in approximately 90% of all cancer types the enzyme telomerase is used to maintain the length of telomeric DNA. Telomerase is a multi-subunit enzyme that minimally contains a catalytic protein subunit, hTERT, and an RNA subunit, hTR. Proper assembly of telomerase is critical for its enzymatic activity and therefore is a requirement for the proliferation of most cancer cells. We have developed the first high-throughput screen capable of identifying small molecules that specifically perturb human telomerase assemblage. The screen uses a scintillation proximity assay to identify compounds that prevent a specific and required interaction between hTR and hTERT. Rather than attempting to disrupt all of the individual hTR-hTERT interactions, we focused the screen on the interaction of the CR4-CR5 domain of hTR with hTERT. The screen employs a biotin-labeled derivative of the CR4-CR5 domain of hTR that independently binds [(35)S]hTERT in a functionally relevant manner. The complex between hTERT and biotin-labeled RNA can be captured on streptavidin-coated scintillation proximity beads. Use of 96-well filter plates and a vacuum manifold enables rapid purification of the beads. After optimization, statistical evaluation of the screen generated a Z' factor of 0.6, demonstrating the high precision of the assay.
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Affiliation(s)
- Brian R Keppler
- Division of Medicinal Chemistry and Natural Products, School of Pharmacy, University of North Carolina, Chapel Hill, 27599, USA
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Sorscher EJ, Harris J, Alexander M, Rottgers A, Hardy K, Ponnazhagan S, Collawn JF, McClintock J, Amsler CD, Webster A, Maddry J, Baker BJ, Hong JS. Activators of viral gene expression in polarized epithelial monolayers identified by rapid-throughput drug screening. Gene Ther 2005; 13:781-8. [PMID: 16307002 DOI: 10.1038/sj.gt.3302676] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
Epithelial polarity and tight junction formation limit the ability of adenovirus, retrovirus and adeno-associated virus (AAV) to deliver and express virally encoded genes. Using an extended half-life luciferase assay and high-throughput luminometry, we screened 23 000 compounds and natural product extracts as potentiators to overcome this barrier. Seven strong activators were discovered (up to several hundred fold above control) and two of these exhibited spectrum of activity in multiple cell types (HeLa (human cervical carcinoma), cystic fibrosis bronchial epithelial (human bronchial), HT29 (human colonic carcinoma), Calu3 (airway serous glandular)). Enhanced transduction by unrelated gene transfer vectors (adenovirus, lentivirus, AAV, liposomal) was also observed. These results establish a strategy for identifying compounds that improve viral gene transfer to resistant cell types, and provide new tools for examining epithelial defense against viral infection. The compounds should have broad usefulness in experimental therapies for cancer and genetic diseases.
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Affiliation(s)
- E J Sorscher
- Department of Medicine, University of Alabama at Birmingham, Birmingham, AL 35294, USA
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