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Röthlisberger P, Gasse C, Hollenstein M. Nucleic Acid Aptamers: Emerging Applications in Medical Imaging, Nanotechnology, Neurosciences, and Drug Delivery. Int J Mol Sci 2017; 18:E2430. [PMID: 29144411 PMCID: PMC5713398 DOI: 10.3390/ijms18112430] [Citation(s) in RCA: 58] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2017] [Revised: 11/08/2017] [Accepted: 11/09/2017] [Indexed: 12/25/2022] Open
Abstract
Recent progresses in organic chemistry and molecular biology have allowed the emergence of numerous new applications of nucleic acids that markedly deviate from their natural functions. Particularly, DNA and RNA molecules-coined aptamers-can be brought to bind to specific targets with high affinity and selectivity. While aptamers are mainly applied as biosensors, diagnostic agents, tools in proteomics and biotechnology, and as targeted therapeutics, these chemical antibodies slowly begin to be used in other fields. Herein, we review recent progress on the use of aptamers in the construction of smart DNA origami objects and MRI and PET imaging agents. We also describe advances in the use of aptamers in the field of neurosciences (with a particular emphasis on the treatment of neurodegenerative diseases) and as drug delivery systems. Lastly, the use of chemical modifications, modified nucleoside triphosphate particularly, to enhance the binding and stability of aptamers is highlighted.
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Affiliation(s)
- Pascal Röthlisberger
- Institut Pasteur, Department of Structural Biology and Chemistry, Laboratory for Bioorganic Chemistry of Nucleic Acids, CNRS UMR3523, 28, rue du Docteur Roux, 75724 Paris CEDEX 15, France.
| | - Cécile Gasse
- Institute of Systems & Synthetic Biology, Xenome Team, 5 rue Henri Desbruères Genopole Campus 1, University of Evry, F-91030 Evry, France.
| | - Marcel Hollenstein
- Institut Pasteur, Department of Structural Biology and Chemistry, Laboratory for Bioorganic Chemistry of Nucleic Acids, CNRS UMR3523, 28, rue du Docteur Roux, 75724 Paris CEDEX 15, France.
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52
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Aptamer-Based Methods for Detection of Circulating Tumor Cells and Their Potential for Personalized Diagnostics. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2017; 994:67-81. [PMID: 28560668 DOI: 10.1007/978-3-319-55947-6_3] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
Cancer diagnostics and treatment monitoring rely on sensing and counting of rare cells such as cancer circulating tumor cells (CTCs) in blood. Many analytical techniques have been developed to reliably detect and quantify CTCs using unique physical shape and size of tumor cells and/or distinctive patterns of cell surface biomarkers. Main problems of CTC bioanalysis are in the small number of cells that are present in the circulation and heterogeneity of CTCs. In this chapter, we describe recent progress towards the selection and application of synthetic DNA or RNA aptamers to capture and detect CTCs in blood. Antibody-based approaches for cell isolation and purification are limited because of an antibody's negative effect on cell viability and purity. Aptamers transform cell isolation technology, because they bind and release cells on-demand. The unique feature of anti-CTC aptamers is that the aptamers are selected for cell surface biomarkers in their native state, and conformation without previous knowledge of their biomarkers. Once aptamers are produced, they can be used to identify CTC biomarkers using mass spectrometry. The biomarkers and corresponding aptamers can be exploited to improve cancer diagnostics and therapies .
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53
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Liu W, Yin B, Wang X, Yu P, Duan X, Liu C, Wang B, Tao Z. Circulating tumor cells in prostate cancer: Precision diagnosis and therapy. Oncol Lett 2017; 14:1223-1232. [PMID: 28789337 PMCID: PMC5529747 DOI: 10.3892/ol.2017.6332] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2016] [Accepted: 03/09/2017] [Indexed: 12/14/2022] Open
Abstract
The primary cause of tumor-associated mortality in prostate cancer (PCa) remains distant metastasis. The dissemination of tumor cells from the primary tumor to distant sites through the bloodstream cannot be detected early by standard imaging methods. Circulating tumor cells (CTCs) represent an effective prognostic and predictive biomarker, which are able to monitor efficacy of adjuvant therapies, detect early development of metastases, and finally, assess therapeutic responses of advanced disease earlier than traditional diagnostic methods. In addition, since repeated tissue biopsies are invasive, costly and not always feasible, the assessment of tumor characteristics on CTCs, by a peripheral blood sample as a liquid biopsy, represents an attractive opportunity. The implementation of molecular and genomic characterization of CTCs may contribute to improve the treatment selection and thus, to move toward more precise diagnosis and therapy in PCa. The present study summarizes the current advances in CTC enrichment and detection strategies and reviews how CTCs may contribute to significant insights in the metastatic process, as well as how they may be utilized in clinical application in PCa. Although it is proposed that CTCs may offer insights into the prognosis and management of PCa, there are a number of challenges in the study of circulating tumor cells, and their clinical utility remains under investigation.
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Affiliation(s)
- Weiwei Liu
- Department of Laboratory Medicine, The Second Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou, Zhejiang 310009, P.R. China
| | - Binbin Yin
- Department of Laboratory Medicine, The Second Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou, Zhejiang 310009, P.R. China
| | - Xuchu Wang
- Department of Laboratory Medicine, The Second Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou, Zhejiang 310009, P.R. China
| | - Pan Yu
- Department of Laboratory Medicine, The Second Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou, Zhejiang 310009, P.R. China
| | - Xiuzhi Duan
- Department of Laboratory Medicine, The Second Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou, Zhejiang 310009, P.R. China
| | - Chunhua Liu
- Department of Laboratory Medicine, The Second Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou, Zhejiang 310009, P.R. China
| | - Ben Wang
- Department of Laboratory Medicine, The Second Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou, Zhejiang 310009, P.R. China
| | - Zhihua Tao
- Department of Laboratory Medicine, The Second Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou, Zhejiang 310009, P.R. China
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Abstract
Circulating tumor cells are a hallmark of cancer metastasis which accounts for approximately 90% of all cancer-related deaths. Their detection and characterization have significant implications in cancer biology and clinical practice. However, CTCs are rare cells and consist of heterogeneous subpopulations, requiring highly sensitive and specific techniques to identify and isolate them with high efficiency. Nanomaterials, with unique structural and functional properties, have shown strong promise to meet the challenging demands. In this review, we discuss CTC capture and therapeutic targeting, emphasizing the significance of the nanomaterials being used for this purpose. The next generation of therapy for metastatic cancer may well involve capturing and even directly neutralizing CTCs using nanomaterials.
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Affiliation(s)
- Zhenjiang Zhang
- Department of Biomedical Engineering, Vanderbilt University, Nashville, TN 37235 USA
| | - Michael R. King
- Department of Biomedical Engineering, Vanderbilt University, Nashville, TN 37235 USA
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55
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Liu L, Yang K, Zhu X, Liang Y, Chen Y, Fang F, Zhao Q, Zhang L, Zhang Y. Aptamer-immobilized open tubular capillary column to capture circulating tumor cells for proteome analysis. Talanta 2017; 175:189-193. [PMID: 28841977 DOI: 10.1016/j.talanta.2017.07.041] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2017] [Revised: 07/11/2017] [Accepted: 07/13/2017] [Indexed: 12/12/2022]
Abstract
Circulating tumor cells hold the key to predicting the prognosis and discovering the therapeutic targets. Herein, we proposed a strategy to develop an aptamer-immobilized open tubular capillary column by which SMMC-7721 human hepatoma cells (SMMC-7721 cells) could be captured with an over 70% of capture efficiency and a 3.0 ± 0.2 of enrichment factor. Owing to the compatibility of the column, the captured cells by the column could be analyzed by LC-MS from protein level and 5 unique proteins of SMMC-7721 cells were identified which could be used as markers to identify SMMC-7721 cells when Jurkat T-leukemia cells (Jurkat cells) were employed as interfering cells. As the key component, the aptamer-immobilized column had the potential to be integrated into the platform for separating, enriching and characterizing rare cells simultaneously.
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Affiliation(s)
- Lukuan Liu
- CAS Key Laboratory of Separation Sciences for Analytical Chemistry, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China; University of Chinese Academy of Sciences, Beijing 100049, China; State Key Laboratory of Fine Chemicals, Dalian University of Technology, Dalian 116024, China
| | - Kaiguang Yang
- CAS Key Laboratory of Separation Sciences for Analytical Chemistry, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China
| | - Xudong Zhu
- CAS Key Laboratory of Separation Sciences for Analytical Chemistry, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Yu Liang
- CAS Key Laboratory of Separation Sciences for Analytical Chemistry, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China
| | - Yuanbo Chen
- CAS Key Laboratory of Separation Sciences for Analytical Chemistry, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Fei Fang
- CAS Key Laboratory of Separation Sciences for Analytical Chemistry, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Qun Zhao
- CAS Key Laboratory of Separation Sciences for Analytical Chemistry, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China
| | - Lihua Zhang
- CAS Key Laboratory of Separation Sciences for Analytical Chemistry, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China.
| | - Yukui Zhang
- CAS Key Laboratory of Separation Sciences for Analytical Chemistry, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China
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56
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Rawal S, Yang YP, Cote R, Agarwal A. Identification and Quantitation of Circulating Tumor Cells. ANNUAL REVIEW OF ANALYTICAL CHEMISTRY (PALO ALTO, CALIF.) 2017; 10:321-343. [PMID: 28301753 DOI: 10.1146/annurev-anchem-061516-045405] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Circulating tumor cells (CTCs) are shed from the primary tumor into the circulatory system and act as seeds that initiate cancer metastasis to distant sites. CTC enumeration has been shown to have a significant prognostic value as a surrogate marker in various cancers. The widespread clinical utility of CTC tests, however, is still limited due to the inherent rarity and heterogeneity of CTCs, which necessitate robust techniques for their efficient enrichment and detection. Significant recent advances have resulted in technologies with the ability to improve yield and purity of CTC enrichment as well as detection sensitivity. Current efforts are largely focused on the translation and standardization of assays to fully realize the clinical utility of CTCs. In this review, we aim to provide a comprehensive overview of CTC enrichment and detection techniques with an emphasis on novel approaches for rapid quantification of CTCs.
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Affiliation(s)
- Siddarth Rawal
- Department of Pathology, DJTMF Biomedical Nanotechnology Institute, University of Miami, Coral Gables, Florida 33146
| | - Yu-Ping Yang
- Department of Pathology, DJTMF Biomedical Nanotechnology Institute, University of Miami, Coral Gables, Florida 33146
- Department of Biochemistry and Molecular Biology, University of Miami, Coral Gables, Florida 33146
| | - Richard Cote
- Department of Pathology, DJTMF Biomedical Nanotechnology Institute, University of Miami, Coral Gables, Florida 33146
- Department of Biochemistry and Molecular Biology, University of Miami, Coral Gables, Florida 33146
| | - Ashutosh Agarwal
- Department of Pathology, DJTMF Biomedical Nanotechnology Institute, University of Miami, Coral Gables, Florida 33146
- Department of Biomedical Engineering, University of Miami, Coral Gables, Florida 33146;
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57
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Wang Z, Sun N, Liu M, Cao Y, Wang K, Wang J, Pei R. Multifunctional Nanofibers for Specific Purification and Release of CTCs. ACS Sens 2017; 2:547-552. [PMID: 28723179 DOI: 10.1021/acssensors.7b00048] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Recovering pure and viable circulating tumor cells (CTCs) from blood has been a challenging task for molecular characterization and functional analysis, which has attracted wide attention these days. Herein, we fabricate a thermoresponsive chitosan nanofiber substrate to effectively capture, purify, and release the target cancer cells, assisted by PNIPAAm brushes and DNA hybridization. The PNIPAAm brushes are designed to enable WBCs to detach from aptamer-PNIPAAm-chitosan-nanofiber (aptamer-P-CNFs) surfaces during the conformational transition. Meanwhile these specific captured CTCs are retained at a high purity. Moreover, effective and intact release of CTCs from the substrates without any foreign agents is realized by complementary sequences efficiently hybridizing with aptamers, and the specific cell release makes CTCs further purified. The present work provides a new strategy in the design of biointerface for recovering target CTCs from whole blood samples with high purity.
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Affiliation(s)
- Zhili Wang
- CAS
Key Laboratory for Nano-Bio Interface, Division of Nanobiomedicine, Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences, Suzhou, 215123, China
- School
of Nano Technology and Nano Bionics, University of Science and Technology of China, Hefei 230026, China
| | - Na Sun
- CAS
Key Laboratory for Nano-Bio Interface, Division of Nanobiomedicine, Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences, Suzhou, 215123, China
| | - Min Liu
- CAS
Key Laboratory for Nano-Bio Interface, Division of Nanobiomedicine, Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences, Suzhou, 215123, China
| | - Yi Cao
- CAS
Key Laboratory for Nano-Bio Interface, Division of Nanobiomedicine, Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences, Suzhou, 215123, China
| | - Kewei Wang
- CAS
Key Laboratory for Nano-Bio Interface, Division of Nanobiomedicine, Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences, Suzhou, 215123, China
| | - Jine Wang
- CAS
Key Laboratory for Nano-Bio Interface, Division of Nanobiomedicine, Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences, Suzhou, 215123, China
| | - Renjun Pei
- CAS
Key Laboratory for Nano-Bio Interface, Division of Nanobiomedicine, Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences, Suzhou, 215123, China
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58
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Chandola C, Kalme S, Casteleijn MG, Urtti A, Neerathilingam M. Application of aptamers in diagnostics, drug-delivery and imaging. J Biosci 2017; 41:535-61. [PMID: 27581942 DOI: 10.1007/s12038-016-9632-y] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Aptamers are small, single-stranded oligonucleotides (DNA or RNA) that bind to their target with high specificity and affinity. Although aptamers are analogous to antibodies for a wide range of target recognition and variety of applications, they have significant advantages over antibodies. Since aptamers have recently emerged as a class of biomolecules with an application in a wide array of fields, we need to summarize the latest developments herein. In this review we will discuss about the latest developments in using aptamers in diagnostics, drug delivery and imaging. We begin with diagnostics, discussing the application of aptamers for the detection of infective agents itself, antigens/ toxins (bacteria), biomarkers (cancer), or a combination. The ease of conjugation and labelling of aptamers makes them a potential tool for diagnostics. Also, due to the reduced off-target effects of aptamers, their use as a potential drug delivery tool is emerging rapidly. Hence, we discuss their use in targeted delivery in conjugation with siRNAs, nanoparticles, liposomes, drugs and antibodies. Finally, we discuss about the conjugation strategies applicable for RNA and DNA aptamers for imaging. Their stability and self-assembly after heating makes them superior over protein-based binding molecules in terms of labelling and conjugation strategies.
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Affiliation(s)
- Chetan Chandola
- 1Center for Cellular and Molecular Platforms, NCBS-TIFR, Bangalore 560 065, India
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59
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Pramanik A, Jones S, Pedraza F, Vangara A, Sweet C, Williams MS, Ruppa-Kasani V, Risher SE, Sardar D, Ray PC. Fluorescent, Magnetic Multifunctional Carbon Dots for Selective Separation, Identification, and Eradication of Drug-Resistant Superbugs. ACS OMEGA 2017; 2:554-562. [PMID: 28261690 PMCID: PMC5331453 DOI: 10.1021/acsomega.6b00518] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/18/2016] [Accepted: 02/03/2017] [Indexed: 05/21/2023]
Abstract
The emergence of drug-resistant superbugs remains a major burden to society. As the mortality rate caused by sepsis due to superbugs is more than 40%, accurate identification of blood infections during the early stage will have a huge significance in the clinical setting. Here, we report the synthesis of red/blue fluorescent carbon dot (CD)-attached magnetic nanoparticle-based multicolor multifunctional CD-based nanosystems, which can be used for selective separation and identification of superbugs from infected blood samples. The reported data show that multifunctional fluorescent magneto-CD nanoparticles are capable of isolating Methicillin-resistant Staphylococcus aureus (MRSA) and Salmonella DT104 superbug from whole blood samples, followed by accurate identification via multicolor fluorescence imaging. As multidrug-resistant (MDR) superbugs are resistant to antibiotics available in the market, this article also reports the design of antimicrobial peptide-conjugated multicolor fluorescent magneto-CDs for effective separation, accurate identification, and complete disinfection of MDR superbugs from infected blood. The reported data demonstrate that by combining pardaxin antimicrobial peptides, magnetic nanoparticles, and multicolor fluorescent CDs into a single system, multifunctional CDs represent a novel material for efficient separation, differentiation, and eradication of superbugs. This material shows great promise for use in clinical settings.
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Affiliation(s)
- Avijit Pramanik
- Department
of Chemistry and Biochemistry, Jackson State
University, 1400 J. R. Lynch Street, P.O. Box 17910, Jackson, Mississippi 39217-0510, United States
| | - Stacy Jones
- Department
of Chemistry and Biochemistry, Jackson State
University, 1400 J. R. Lynch Street, P.O. Box 17910, Jackson, Mississippi 39217-0510, United States
| | - Francisco Pedraza
- Department
of Physics and Astronomy, University of
Texas at San Antonio, One UTSA Circle, San Antonio, Texas 78249-0697, United States
| | - Aruna Vangara
- Department
of Chemistry and Biochemistry, Jackson State
University, 1400 J. R. Lynch Street, P.O. Box 17910, Jackson, Mississippi 39217-0510, United States
| | - Carrie Sweet
- Department
of Chemistry and Biochemistry, Jackson State
University, 1400 J. R. Lynch Street, P.O. Box 17910, Jackson, Mississippi 39217-0510, United States
| | - Mariah S. Williams
- Department
of Chemistry and Biochemistry, Jackson State
University, 1400 J. R. Lynch Street, P.O. Box 17910, Jackson, Mississippi 39217-0510, United States
| | - Vikram Ruppa-Kasani
- Department
of Chemistry and Biochemistry, Jackson State
University, 1400 J. R. Lynch Street, P.O. Box 17910, Jackson, Mississippi 39217-0510, United States
| | - Sean Edward Risher
- Department
of Chemistry and Biochemistry, Jackson State
University, 1400 J. R. Lynch Street, P.O. Box 17910, Jackson, Mississippi 39217-0510, United States
| | - Dhiraj Sardar
- Department
of Physics and Astronomy, University of
Texas at San Antonio, One UTSA Circle, San Antonio, Texas 78249-0697, United States
| | - Paresh Chandra Ray
- Department
of Chemistry and Biochemistry, Jackson State
University, 1400 J. R. Lynch Street, P.O. Box 17910, Jackson, Mississippi 39217-0510, United States
- E-mail: . Fax: +16019793674 (P.C.R.)
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Tadimety A, Syed A, Nie Y, Long CR, Kready KM, Zhang JXJ. Liquid biopsy on chip: a paradigm shift towards the understanding of cancer metastasis. Integr Biol (Camb) 2017; 9:22-49. [DOI: 10.1039/c6ib00202a] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Amogha Tadimety
- Thayer School of Engineering at Dartmouth College, Hanover NH, 03755, USA
| | - Abeer Syed
- Thayer School of Engineering at Dartmouth College, Hanover NH, 03755, USA
| | - Yuan Nie
- Thayer School of Engineering at Dartmouth College, Hanover NH, 03755, USA
| | - Christina R. Long
- Thayer School of Engineering at Dartmouth College, Hanover NH, 03755, USA
| | - Kasia M. Kready
- Thayer School of Engineering at Dartmouth College, Hanover NH, 03755, USA
| | - John X. J. Zhang
- Thayer School of Engineering at Dartmouth College, Hanover NH, 03755, USA
- Dartmouth-Hitchcock Norris Cotton Cancer Center, Lebanon NH, 03766, USA
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61
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Zhang Z, Yang J, Pang W, Yan G. An aptamer-based fluorescence probe for facile detection of lipopolysaccharide in drinks. RSC Adv 2017. [DOI: 10.1039/c7ra10710b] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
An alternative fluorescence strategy for specific and convenient detection of lipopolysaccharide in drink was developed.
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Affiliation(s)
- Jungho Kim
- Center for RNA Research, Institute for Basic Science (IBS), Seoul National University , Seoul 08826, Korea.,Department of Chemistry, Seoul National University , Seoul 08826, Korea
| | - Se-Jin Park
- Center for RNA Research, Institute for Basic Science (IBS), Seoul National University , Seoul 08826, Korea.,Department of Chemistry, Seoul National University , Seoul 08826, Korea
| | - Dal-Hee Min
- Center for RNA Research, Institute for Basic Science (IBS), Seoul National University , Seoul 08826, Korea.,Department of Chemistry, Seoul National University , Seoul 08826, Korea.,Institute of Nanobio Convergence Technology, Lemonex Inc., Seoul 08826, Korea
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Optical Aptamer Probes of Fluorescent Imaging to Rapid Monitoring of Circulating Tumor Cell. SENSORS 2016; 16:s16111909. [PMID: 27886058 PMCID: PMC5134568 DOI: 10.3390/s16111909] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/05/2016] [Revised: 11/02/2016] [Accepted: 11/02/2016] [Indexed: 02/08/2023]
Abstract
Fluorescence detecting of exogenous EpCAM (epithelial cell adhesion molecule) or muc1 (mucin1) expression correlated to cancer metastasis using nanoparticles provides pivotal information on CTC (circulating tumor cell) occurrence in a noninvasive tool. In this study, we study a new skill to detect extracellular EpCAM/muc1 using quantum dot-based aptamer beacon (QD-EpCAM/muc1 ALB (aptamer linker beacon). The QD-EpCAM/muc1 ALB was designed using QDs (quantum dots) and probe. The EpCAM/muc1-targeting aptamer contains a Ep-CAM/muc1 binding sequence and BHQ1 (black hole quencher 1) or BHQ2 (black hole quencher2). In the absence of target EpCAM/muc1, the QD-EpCAM/muc1 ALB forms a partial duplex loop-like aptamer beacon and remained in quenched state because the BHQ1/2 quenches the fluorescence signal-on of the QD-EpCAM/muc1 ALB. The binding of EpCAM/muc1 of CTC to the EpCAM/muc1 binding aptamer sequence of the EpCAM/muc1-targeting oligonucleotide triggered the dissociation of the BHQ1/2 quencher and subsequent signal-on of a green/red fluorescence signal. Furthermore, acute inflammation was stimulated by trigger such as caerulein in vivo, which resulted in increased fluorescent signal of the cy5.5-EpCAM/muc1 ALB during cancer metastasis due to exogenous expression of EpCAM/muc1 in Panc02-implanted mouse model.
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Hassan EM, Willmore WG, DeRosa MC. Aptamers: Promising Tools for the Detection of Circulating Tumor Cells. Nucleic Acid Ther 2016; 26:335-347. [PMID: 27736306 DOI: 10.1089/nat.2016.0632] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022] Open
Abstract
Circulating tumor cells (CTCs) are cells that shed from a primary tumor and freely circulate in the blood, retaining the ability to initiate metastasis and form a secondary tumor in distant organs in the body. CTCs reflect the molecular profile of the primary tumor, therefore studying CTCs can allow for an understanding of the mechanism of metastasis, and an opportunity to monitor the prognosis of cancer. Unfortunately, the detection of CTCs is a considerable challenge due to their low abundance in the bloodstream and the lack of consistent markers present to recognize these cells. The aim of this review is to summarize some of the aptamer-based affinity methods for the detection of CTCs. The basic biological concept of how metastasis occurs and the role of CTCs in this process are presented. Some methods of CTC detection employing antibodies or peptides are mentioned here for comparison. The review of present literature suggests that aptamers are emerging as competitive technology in the detection of CTCs, especially due to their unique properties, but there still remain several challenges to be met, including the need to improve the throughput and sensitivity of such methods.
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Affiliation(s)
- Eman M Hassan
- 1 Institut National de la Recherche Scientifique-Energie, Materiaux Telecommunication , Quebec, Canada .,2 Department of Chemistry, Carleton University , Ottawa, Canada
| | | | - Maria C DeRosa
- 2 Department of Chemistry, Carleton University , Ottawa, Canada .,3 Institute of Biochemistry, Carleton University , Ottawa, Canada
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Citartan M, Ch'ng ES, Rozhdestvensky TS, Tang TH. Aptamers as the ‘capturing’ agents in aptamer-based capture assays. Microchem J 2016. [DOI: 10.1016/j.microc.2016.04.019] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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66
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Chavva SR, Viraka Nellore BP, Pramanik A, Sinha SS, Jones S, Ray PC. Designing a multicolor long range nanoscopic ruler for the imaging of heterogeneous tumor cells. NANOSCALE 2016; 8:13769-80. [PMID: 27380815 PMCID: PMC4945410 DOI: 10.1039/c6nr02444k] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
Tumor heterogeneity is one of the biggest challenges in cancer treatment and diagnosis. A multicolor optical ruler is essential to address the heterogeneous tumor cell complexity. Driven by this need, the current article reports the design of a multicolor long range nanoscopic ruler for screening tumor heterogeneity by accurately identifying epithelial cells and cancer stem cells (CSCs) simultaneously. A nanoscopic surface energy transfer (NSET) ruler has been developed using blue fluorescence polymer dots (PDs) and red fluorescence gold cluster dots (GCDs) as multicolor fluorescence donor and plasmonic gold nanoparticle (GNP) acts as an excellent acceptor. Reported experimental results demonstrated that the multicolor nanoscopic ruler's working window is above 35 nm distances, which is more than three times farther than that of Förster resonance energy transfer (FRET) distance limit. Theoretical modeling using Förster dipole-dipole coupling and dipole to nanoparticle surface energy transfer have been used to discuss the possible mechanism for multicolor nanoscopic ruler's long-range capability. Using RNA aptamers that are specific for the target cancer cells, experimental data demonstrate that the nanoscopic ruler can be used for screening epithelial and CSCs simultaneously from a whole blood sample with a detection capability of 10 cells per mL. Experimental data show that the nanoscopic ruler can distinguish targeted cells from non-targeted cells.
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Affiliation(s)
- Suhash Reddy Chavva
- Department of Chemistry and Biochemistry, Jackson State University, Jackson, MS, USA.
| | | | - Avijit Pramanik
- Department of Chemistry and Biochemistry, Jackson State University, Jackson, MS, USA.
| | - Sudarson Sekhar Sinha
- Department of Chemistry and Biochemistry, Jackson State University, Jackson, MS, USA.
| | - Stacy Jones
- Department of Chemistry and Biochemistry, Jackson State University, Jackson, MS, USA.
| | - Paresh Chandra Ray
- Department of Chemistry and Biochemistry, Jackson State University, Jackson, MS, USA.
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Cao H, Fang X, Li H, Li H, Kong J. Ultrasensitive detection of mucin 1 biomarker by immuno-loop-mediated isothermal amplification. Talanta 2016; 164:588-592. [PMID: 28107977 DOI: 10.1016/j.talanta.2016.07.018] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2016] [Revised: 06/24/2016] [Accepted: 07/04/2016] [Indexed: 02/07/2023]
Abstract
Mucin 1 (MUC-1), a glycoprotein over-expressed on most malignant epithelial cell surfaces, such as colorectal, lung, prostate, pancreatic, ovarian, and bladder carcinomas, has been confirmed as a useful biomarker for the diagnosis of early cancers. Therefore, it is very important for early cancer diagnoses to develop the sensitive and specific detection approach of MUC-1. In this paper, we report a novel technique of aptamer-based Immuno-Loop-Mediated Isothermal Amplification (Im-LAMP) for the quantitative detection of MUC-1 by MUC-1 aptamer with high affinity for MUC-1. The cycle time is linearly dependent on the logarithm (log) of the concentration of mucin 1 ranging from 1.0 pM to 1.0 aM. We call this technique Im-LAMP, which is a novel method for the detection of low-abundance proteins with high sensitivity (a low detection limit of 120 MUC-1 molecules by calculation)and specificity. Finally, this approach is also successfully applied in the analysis of human blood serum samples. It also lays the foundation for the early diagnosis of different types of low-abundance cancer biomarkers.
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Affiliation(s)
- Hongmei Cao
- Department of Chemistry and Institute of Biomedical Sciences, Fudan University, Shanghai 200433, PR China
| | - Xueen Fang
- Department of Chemistry and Institute of Biomedical Sciences, Fudan University, Shanghai 200433, PR China.
| | - Haipeng Li
- Department of Chemistry and Institute of Biomedical Sciences, Fudan University, Shanghai 200433, PR China
| | - Hua Li
- Department of Chemistry and Institute of Biomedical Sciences, Fudan University, Shanghai 200433, PR China
| | - Jilie Kong
- Department of Chemistry and Institute of Biomedical Sciences, Fudan University, Shanghai 200433, PR China.
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68
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Pramanik A, Vangara A, Viraka Nellore BP, Sinha SS, Chavva SR, Jones S, Ray PC. Development of Multifunctional Fluorescent-Magnetic Nanoprobes for Selective Capturing and Multicolor Imaging of Heterogeneous Circulating Tumor Cells. ACS APPLIED MATERIALS & INTERFACES 2016; 8:15076-85. [PMID: 27255574 PMCID: PMC4957586 DOI: 10.1021/acsami.6b03262] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/17/2016] [Accepted: 06/03/2016] [Indexed: 05/23/2023]
Abstract
Circulating tumor cells (CTC) are highly heterogeneous in nature due to epithelial-mesenchymal transition (EMT), which is the major obstacle for CTC analysis via "liquid biopsy". This article reports the development of a new class of multifunctional fluorescent-magnetic multicolor nanoprobes for targeted capturing and accurate identification of heterogeneous CTC. A facile design approach for the synthesis and characterization of bioconjugated multifunctonal nanoprobes that exhibit excellent magnetic properties and emit very bright and photostable multicolor fluorescence at red, green, and blue under 380 nm excitation is reported. Experimental data presented show that the multifunctional multicolor nanoprobes can be used for targeted capture and multicolor fluorescence mapping of heterogeneous CTC and can distinguish targeted CTC from nontargeted cells.
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69
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Abstract
In the past two decades, aptamers have emerged as a novel class of molecular recognition probes comprising uniquely-folded short RNA or single-stranded DNA oligonucleotides that bind to their cognate targets with high specificity and affinity. Aptamers, often referred to as "chemical antibodies", possess several highly desirable features for clinical use. They can be chemically synthesized and are easily conjugated to a wide range of reporters for different applications, and are able to rapidly penetrate tissues. These advantages significantly enhance their clinical applicability, and render them excellent alternatives to antibody-based probes in cancer diagnostics and therapeutics. Aptamer probes based on fluorescence, colorimetry, magnetism, electrochemistry, and in conjunction with nanomaterials (e.g., nanoparticles, quantum dots, single-walled carbon nanotubes, and magnetic nanoparticles) have provided novel ultrasensitive cancer diagnostic strategies and assays. Furthermore, promising aptamer targeted-multimodal tumor imaging probes have been recently developed in conjunction with fluorescence, positron emission tomography (PET), single-photon emission computed tomography (SPECT), and magnetic resonance imaging (MRI). The capabilities of the aptamer-based platforms described herein underscore the great potential they hold for the future of cancer detection. In this review, we highlight the most prominent recent developments in this rapidly advancing field.
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Affiliation(s)
- Hongguang Sun
- Department of Pathology and Genomic Medicine, Houston Methodist Hospital, Houston, TX 77030, USA.
| | - Weihong Tan
- Department of Chemistry and Physiology and Functional Genomics, Center for Research at the Bio/Nano Interface, Shands Cancer Center, UF Genetics Institute, University of Florida, Gainesville, Florida 32611-7200, USA
| | - Youli Zu
- Department of Pathology and Genomic Medicine, Houston Methodist Hospital, Houston, TX 77030, USA.
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70
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Hong Y, Zhang Q. Phenotype of circulating tumor cell: face-off between epithelial and mesenchymal masks. Tumour Biol 2016; 37:5663-74. [DOI: 10.1007/s13277-016-4796-5] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2015] [Accepted: 01/06/2016] [Indexed: 12/12/2022] Open
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71
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Dickey DD, Giangrande PH. Oligonucleotide aptamers: A next-generation technology for the capture and detection of circulating tumor cells. Methods 2015; 97:94-103. [PMID: 26631715 DOI: 10.1016/j.ymeth.2015.11.020] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2015] [Revised: 11/20/2015] [Accepted: 11/25/2015] [Indexed: 01/17/2023] Open
Abstract
A critical challenge for treating cancer is the early identification of those patients who are at greatest risk of developing metastatic disease. The number of circulating tumor cells (CTCs) in cancer patients has recently been shown to be a valuable (and non-invasively accessible) diagnostic indicator of the state of metastatic disease. CTCs are rare cancer cells found in the blood circulation of cancer patients believed to provide a means of diagnosing the likelihood for metastatic spread and assessing response to therapy in advanced, as well as early stage disease settings. Numerous technical efforts have been made to reliably detect and quantify CTCs, but the development of a universal assay has proven quite difficult. Notable challenges for developing a broadly useful CTC-based diagnostic assay are the development of easy-to-operate methods that (1) are sufficiently sensitive to reliably detect the small number of CTCs that are present in the circulation and (2) can capture the molecular heterogeneity of tumor cells. In this review, we describe recent progress towards the application of synthetic oligonucleotide aptamers as promising, novel, robust tools for the isolation and detection of CTCs. Advantages and challenges of the aptamer approach are also discussed.
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Affiliation(s)
- David D Dickey
- Department of Internal Medicine, University of Iowa, Iowa City, IA 52242, United States
| | - Paloma H Giangrande
- Department of Internal Medicine, University of Iowa, Iowa City, IA 52242, United States; Department of Radiation Oncology, University of Iowa, Iowa City, IA 52242, United States.
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72
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Nellore BPV, Kanchanapally R, Pedraza F, Sinha SS, Pramanik A, Hamme AT, Arslan Z, Sardar D, Ray PC. Bio-Conjugated CNT-Bridged 3D Porous Graphene Oxide Membrane for Highly Efficient Disinfection of Pathogenic Bacteria and Removal of Toxic Metals from Water. ACS APPLIED MATERIALS & INTERFACES 2015; 7:19210-19218. [PMID: 26273843 DOI: 10.1021/acsami.5b05012c] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
More than a billion people lack access to safe drinking water that is free from pathogenic bacteria and toxic metals. The World Health Organization estimates several million people, mostly children, die every year due to the lack of good quality water. Driven by this need, we report the development of PGLa antimicrobial peptide and glutathione conjugated carbon nanotube (CNT) bridged three-dimensional (3D) porous graphene oxide membrane, which can be used for highly efficient disinfection of Escherichia coli O157:H7 bacteria and removal of As(III), As(V), and Pb(II) from water. Reported results demonstrate that versatile membrane has the capability to capture and completely disinfect pathogenic pathogenic E. coli O157:H7 bacteria from water. Experimentally observed disinfection data indicate that the PGLa attached membrane can dramatically enhance the possibility of destroying pathogenic E. coli bacteria via synergistic mechanism. Reported results show that glutathione attached CNT-bridged 3D graphene oxide membrane can be used to remove As(III), As(V), and Pb(II) from water sample at 10 ppm level. Our data demonstrated that PGLa and glutathione attached membrane has the capability for high efficient removal of E. coli O157:H7 bacteria, As(III), As(V), and Pb(II) simultaneously from Mississippi River water.
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Affiliation(s)
- Bhanu Priya Viraka Nellore
- Department of Chemistry and Biochemistry, Jackson State University , Jackson, Mississippi 39217, United States
| | - Rajashekhar Kanchanapally
- Department of Chemistry and Biochemistry, Jackson State University , Jackson, Mississippi 39217, United States
| | - Francisco Pedraza
- Department of Physics and Astronomy, University of Texas at San Antonio , San Antonio, Texas 78249, United States
| | - Sudarson Sekhar Sinha
- Department of Chemistry and Biochemistry, Jackson State University , Jackson, Mississippi 39217, United States
| | - Avijit Pramanik
- Department of Chemistry and Biochemistry, Jackson State University , Jackson, Mississippi 39217, United States
| | - Ashton T Hamme
- Department of Chemistry and Biochemistry, Jackson State University , Jackson, Mississippi 39217, United States
| | - Zikri Arslan
- Department of Chemistry and Biochemistry, Jackson State University , Jackson, Mississippi 39217, United States
| | - Dhiraj Sardar
- Department of Physics and Astronomy, University of Texas at San Antonio , San Antonio, Texas 78249, United States
| | - Paresh Chandra Ray
- Department of Chemistry and Biochemistry, Jackson State University , Jackson, Mississippi 39217, United States
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73
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Nellore BPV, Kanchanapally R, Pedraza F, Sinha SS, Pramanik A, Hamme AT, Arslan Z, Sardar D, Chandra Ray P. Bio-Conjugated CNT-Bridged 3D Porous Graphene Oxide Membrane for Highly Efficient Disinfection of Pathogenic Bacteria and Removal of Toxic Metals from Water. ACS APPLIED MATERIALS & INTERFACES 2015; 7:19210-8. [PMID: 26273843 PMCID: PMC4690451 DOI: 10.1021/acsami.5b05012] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/05/2023]
Abstract
More than a billion people lack access to safe drinking water that is free from pathogenic bacteria and toxic metals. The World Health Organization estimates several million people, mostly children, die every year due to the lack of good quality water. Driven by this need, we report the development of PGLa antimicrobial peptide and glutathione conjugated carbon nanotube (CNT) bridged three-dimensional (3D) porous graphene oxide membrane, which can be used for highly efficient disinfection of Escherichia coli O157:H7 bacteria and removal of As(III), As(V), and Pb(II) from water. Reported results demonstrate that versatile membrane has the capability to capture and completely disinfect pathogenic pathogenic E. coli O157:H7 bacteria from water. Experimentally observed disinfection data indicate that the PGLa attached membrane can dramatically enhance the possibility of destroying pathogenic E. coli bacteria via synergistic mechanism. Reported results show that glutathione attached CNT-bridged 3D graphene oxide membrane can be used to remove As(III), As(V), and Pb(II) from water sample at 10 ppm level. Our data demonstrated that PGLa and glutathione attached membrane has the capability for high efficient removal of E. coli O157:H7 bacteria, As(III), As(V), and Pb(II) simultaneously from Mississippi River water.
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Affiliation(s)
- Bhanu Priya Viraka Nellore
- Department of Chemistry and Biochemistry, Jackson State University, Jackson, Mississippi 39217, United States
| | - Rajashekhar Kanchanapally
- Department of Chemistry and Biochemistry, Jackson State University, Jackson, Mississippi 39217, United States
| | - Francisco Pedraza
- Department of Physics and Astronomy, University of Texas at San Antonio, San Antonio, Texas 78249, United States
| | - Sudarson Sekhar Sinha
- Department of Chemistry and Biochemistry, Jackson State University, Jackson, Mississippi 39217, United States
| | - Avijit Pramanik
- Department of Chemistry and Biochemistry, Jackson State University, Jackson, Mississippi 39217, United States
| | - Ashton T Hamme
- Department of Chemistry and Biochemistry, Jackson State University, Jackson, Mississippi 39217, United States
| | - Zikri Arslan
- Department of Chemistry and Biochemistry, Jackson State University, Jackson, Mississippi 39217, United States
| | - Dhiraj Sardar
- Department of Physics and Astronomy, University of Texas at San Antonio, San Antonio, Texas 78249, United States
| | - Paresh Chandra Ray
- Department of Chemistry and Biochemistry, Jackson State University, Jackson, Mississippi 39217, United States
- Corresponding Author:., Fax: +16019793674
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74
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Myung JH, Tam KA, Park SJ, Cha A, Hong S. Recent advances in nanotechnology-based detection and separation of circulating tumor cells. WILEY INTERDISCIPLINARY REVIEWS-NANOMEDICINE AND NANOBIOTECHNOLOGY 2015; 8:223-39. [PMID: 26296639 DOI: 10.1002/wnan.1360] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/25/2015] [Revised: 06/05/2015] [Accepted: 06/16/2015] [Indexed: 01/09/2023]
Abstract
Although circulating tumor cells (CTCs) in blood have been widely investigated as a potential biomarker for diagnosis and prognosis of metastatic cancer, their inherent rarity and heterogeneity bring tremendous challenges to develop a CTC detection method with clinically significant specificity and sensitivity. With advances in nanotechnology, a series of new methods that are highly promising have emerged to enable or enhance detection and separation of CTCs from blood. In this review, we systematically categorize nanomaterials, such as gold nanoparticles, magnetic nanoparticles, quantum dots, graphenes/graphene oxides, and dendrimers and stimuli-responsive polymers, used in the newly developed CTC detection methods. This will provide a comprehensive overview of recent advances in the CTC detection achieved through application of nanotechnology as well as the challenges that these existing technologies must overcome to be directly impactful on human health.
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Affiliation(s)
- Ja Hye Myung
- Department of Biopharmaceutical Sciences, College of Pharmacy, University of Illinois, Chicago, IL, USA
| | - Kevin A Tam
- Department of Biopharmaceutical Sciences, College of Pharmacy, University of Illinois, Chicago, IL, USA
| | - Sin-jung Park
- Department of Biopharmaceutical Sciences, College of Pharmacy, University of Illinois, Chicago, IL, USA
| | - Ashley Cha
- Department of Biopharmaceutical Sciences, College of Pharmacy, University of Illinois, Chicago, IL, USA
| | - Seungpyo Hong
- Department of Biopharmaceutical Sciences, College of Pharmacy, University of Illinois, Chicago, IL, USA.,Integrated Science and Engineering Division, Underwood International College, Yonsei University, Incheon, South Korea
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75
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A Highlight of Recent Advances in Aptamer Technology and Its Application. Molecules 2015; 20:11959-80. [PMID: 26133761 PMCID: PMC6331864 DOI: 10.3390/molecules200711959] [Citation(s) in RCA: 204] [Impact Index Per Article: 22.7] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2015] [Revised: 06/23/2015] [Accepted: 06/25/2015] [Indexed: 01/10/2023] Open
Abstract
Aptamers and SELEX (systematic evolution of ligands by exponential enrichment) technology have gained increasing attention over the past 25 years. Despite their functional similarity to protein antibodies, oligonucleotide aptamers have many unique properties that are suitable for clinical applications and industrialization. Aptamers may be superior to antibodies in fields such as biomarker discovery, in vitro and in vivo diagnosis, precisely controlled drug release, and targeted therapy. However, aptamer commercialization has not occurred as quickly as expected, and few aptamer-based products have yet successfully entered clinical and industrial use. Thus, it is important to critically review some technical barriers of aptamer and SELEX technology per se that may impede aptamer development and application. To date, how to rapidly obtain aptamers with superior bioavailability over antibodies remains the key issue. In this review, we discuss different chemical and structural modification strategies aimed to enhance aptamer bioavailability. We also discuss improvements to SELEX process steps to shorten the selection period and improve the SELEX process success rate. Applications in which aptamers are particularly suited and perform differently or superior to antibodies are briefly introduced.
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76
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Hsieh CJ, Chen YC, Hsieh PY, Liu SR, Wu SP, Hsieh YZ, Hsu HY. Graphene Oxide Based Nanocarrier Combined with a pH-Sensitive Tracer: A Vehicle for Concurrent pH Sensing and pH-Responsive Oligonucleotide Delivery. ACS APPLIED MATERIALS & INTERFACES 2015; 7:11467-75. [PMID: 25945595 DOI: 10.1021/acsami.5b02397] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Abstract
We chemically tuned the oxidation status of graphene oxide (GO) and constructed a GO-based nanoplatform combined with a pH-sensitive fluorescence tracer that is designed for both pH sensing and pH-responsive drug delivery. A series of GOs oxidized to distinct degrees were examined to optimize the adsorption of the model drug, poly dT30. We determined that highly oxidized GO was a superior drug-carrier candidate in vitro when compared to GOs oxidized to lesser degrees. In the cell experiment, the synthesized pH-sensitive rhodamine dye was first applied to monitor cellular pH; under acidic conditions, protonated rhodamine fluoresces at 588 nm (λex=561 nm). When the dT30-GO nanocarrier was introduced into cells, a rhodamine-triggered competition reaction occurred, and this led to the release of the oligonucleotides and the quenching of rhodamine fluorescence by GO. Our results indicate high drug loading (FAM-dT30/GO=25/50 μg/mL) and rapid cellular uptake (<0.5 h) of the nanocarrier which can potentially be used for targeted RNAi delivery to the acidic milieu of tumors.
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Affiliation(s)
- Chia-Jung Hsieh
- †Department of Applied Chemistry, ‡Center for Interdisciplinary Science (CIS), and §Institute of Molecular Science, National Chiao-Tung University, No. 1001 Ta-Hsueh Road, Hsinchu 30010, Taiwan
| | - Yu-Cheng Chen
- †Department of Applied Chemistry, ‡Center for Interdisciplinary Science (CIS), and §Institute of Molecular Science, National Chiao-Tung University, No. 1001 Ta-Hsueh Road, Hsinchu 30010, Taiwan
| | - Pei-Ying Hsieh
- †Department of Applied Chemistry, ‡Center for Interdisciplinary Science (CIS), and §Institute of Molecular Science, National Chiao-Tung University, No. 1001 Ta-Hsueh Road, Hsinchu 30010, Taiwan
| | - Shi-Rong Liu
- †Department of Applied Chemistry, ‡Center for Interdisciplinary Science (CIS), and §Institute of Molecular Science, National Chiao-Tung University, No. 1001 Ta-Hsueh Road, Hsinchu 30010, Taiwan
| | - Shu-Pao Wu
- †Department of Applied Chemistry, ‡Center for Interdisciplinary Science (CIS), and §Institute of Molecular Science, National Chiao-Tung University, No. 1001 Ta-Hsueh Road, Hsinchu 30010, Taiwan
| | - You-Zung Hsieh
- †Department of Applied Chemistry, ‡Center for Interdisciplinary Science (CIS), and §Institute of Molecular Science, National Chiao-Tung University, No. 1001 Ta-Hsueh Road, Hsinchu 30010, Taiwan
| | - Hsin-Yun Hsu
- †Department of Applied Chemistry, ‡Center for Interdisciplinary Science (CIS), and §Institute of Molecular Science, National Chiao-Tung University, No. 1001 Ta-Hsueh Road, Hsinchu 30010, Taiwan
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Shi Y, Pramanik A, Tchounwou C, Pedraza F, Crouch RA, Chavva SR, Vangara A, Sinha SS, Jones S, Sardar D, Hawker C, Ray PC. Multifunctional biocompatible graphene oxide quantum dots decorated magnetic nanoplatform for efficient capture and two-photon imaging of rare tumor cells. ACS APPLIED MATERIALS & INTERFACES 2015; 7:10935-43. [PMID: 25939643 PMCID: PMC4570252 DOI: 10.1021/acsami.5b02199] [Citation(s) in RCA: 71] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/08/2023]
Abstract
Circulating tumor cells (CTCs) are extremely rare cells in blood containing billions of other cells. The selective capture and identification of rare cells with sufficient sensitivity is a real challenge. Driven by this need, this manuscript reports the development of a multifunctional biocompatible graphene oxide quantum dots (GOQDs) coated, high-luminescence magnetic nanoplatform for the selective separation and diagnosis of Glypican-3 (GPC3)-expressed Hep G2 liver cancer tumor CTCs from infected blood. Experimental data show that an anti-GPC3-antibody-attached multifunctional nanoplatform can be used for selective Hep G2 hepatocellular carcinoma tumor cell separation from infected blood containing 10 tumor cells/mL of blood in a 15 mL sample. Reported data indicate that, because of an extremely high two-photon absorption cross section (40530 GM), an anti-GPC3-antibody-attached GOQDs-coated magnetic nanoplatform can be used as a two-photon luminescence platform for selective and very bright imaging of a Hep G2 tumor cell in a biological transparency window using 960 nm light. Experimental results with nontargeted GPC3(-) and SK-BR-3 breast cancer cells show that multifunctional-nanoplatform-based cell separation, followed by two-photon imaging, is highly selective for Hep G2 hepatocellular carcinoma tumor cells.
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Affiliation(s)
- Yongliang Shi
- Department of Chemistry
and Biochemistry, Jackson State University, Jackson, Mississippi 39217, United States
| | - Avijit Pramanik
- Department of Chemistry
and Biochemistry, Jackson State University, Jackson, Mississippi 39217, United States
| | - Christine Tchounwou
- Department of Chemistry
and Biochemistry, Jackson State University, Jackson, Mississippi 39217, United States
| | - Francisco Pedraza
- Department of Physics and Astronomy, University
of Texas at San Antonio, San Antonio, Texas 78249, United States
| | - Rebecca A. Crouch
- Department of Chemistry
and Biochemistry, Jackson State University, Jackson, Mississippi 39217, United States
| | - Suhash Reddy Chavva
- Department of Chemistry
and Biochemistry, Jackson State University, Jackson, Mississippi 39217, United States
| | - Aruna Vangara
- Department of Chemistry
and Biochemistry, Jackson State University, Jackson, Mississippi 39217, United States
| | - Sudarson Sekhar Sinha
- Department of Chemistry
and Biochemistry, Jackson State University, Jackson, Mississippi 39217, United States
| | - Stacy Jones
- Department of Chemistry
and Biochemistry, Jackson State University, Jackson, Mississippi 39217, United States
| | - Dhiraj Sardar
- Department of Physics and Astronomy, University
of Texas at San Antonio, San Antonio, Texas 78249, United States
| | - Craig Hawker
- Department of Chemistry and Biochemistry and Materials Research Laboratory, Materials Department, University of California at Santa Barbara, Santa Barbara, California 93106, United States
| | - Paresh Chandra Ray
- Department of Chemistry
and Biochemistry, Jackson State University, Jackson, Mississippi 39217, United States
- E-mail:. Fax: +16019793674
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78
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Kanchanapally R, Viraka Nellore BP, Sinha SS, Pedraza F, Jones SJ, Pramanik A, Chavva SR, Tchounwou C, Shi Y, Vangara A, Sardar D, Ray PC. Antimicrobial Peptide-Conjugated Graphene Oxide Membrane for Efficient Removal and Effective Killing of Multiple Drug Resistant Bacteria. RSC Adv 2015; 5:18881-18887. [PMID: 26294958 PMCID: PMC4539267 DOI: 10.1039/c5ra01321f] [Citation(s) in RCA: 86] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
According to the World Health Organization (WHO), multiple drug-resistant (MDR) bacterial infection is a top threat to human health. Since bacteria evolve to resist antibiotics faster than scientists can develop new classes of drugs, the development of new materials which can be used, not only for separation, but also for effective disinfection of drug resistant pathogens is urgent. Driven by this need, we report for the first time the development of a nisin antimicrobial peptide conjugated, three dimensional (3D) porous graphene oxide membrane for identification, effective separation, and complete disinfection of MDR methicillin-resistant Staphylococcus aureus (MRSA) pathogens from water. Experimental data show that due to the size differences, MRSA is captured by the porous membrane, allowing only water to pass through. SEM, TEM, and fluorescence images confirm that pathogens are captured by the membrane. RT-PCR data with colony counting indicate that almost 100% of MRSA can be removed and destroyed from the water sample using the developed membrane. Comparison of MDR killing data between nisin alone, the graphene oxide membrane and the nisin attached graphene oxide membrane demonstrate that the nisin antimicrobial peptide attached graphene oxide membrane can dramatically enhance the possibility of destroying MRSA via a synergestic effect due to the multimodal mechanism.
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Affiliation(s)
| | | | | | - Francisco Pedraza
- Department of Physics and Astronomy, University of Texas at San Antonio, TX, USA
| | | | | | | | | | | | | | - Dhiraj Sardar
- Department of Physics and Astronomy, University of Texas at San Antonio, TX, USA
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