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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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52
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Unique Properties of Core Shell Ag@Au Nanoparticles for the Aptasensing of Bacterial Cells. CHEMOSENSORS 2016. [DOI: 10.3390/chemosensors4030016] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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53
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Qin C, Wen W, Zhang X, Gu H, Wang S. Visual detection of thrombin using a strip biosensor through aptamer-cleavage reaction with enzyme catalytic amplification. Analyst 2016; 140:7710-7. [PMID: 26451394 DOI: 10.1039/c5an01712b] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
A new class of strip biosensors has been established based on well-distributed thrombin aptamer-linked gold nanoparticle aggregates, which will undergo a cracking reaction when the target recognizes its homologous aptamer. Combining the aptamer-cleavage reaction with the enzyme catalytic amplification system, our proposed lateral flow strip biosensor (LFB) is capable of visually detecting 6.4 pM of thrombin without instrumentation within 12 minutes. Under the optimal conditions, the quantitative detection of thrombin by a portable strip reader exhibited a linear relationship between the peak area and the concentration of thrombin in the range of 6.4 pM-500 nM with a detection limit of 4.9 pM, which is three orders of magnitude lower than that of the aptamer-functionalized gold nanoparticle-based LFB (2.5 nM, Xu et al., Anal. Chem., 2009, 81, 669-675). As the aptamers have no special requirements and the gold nanoparticles can also be replaced by other metallic nanoparticles, this method for strip sensing is expected to be generally applicable in point of care testing, home testing, medical diagnostics, clinical diagnosis, and environmental monitoring.
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Affiliation(s)
- Chunyan Qin
- Hubei Collaborative Innovation Center for Advanced Organic Chemical Materials, Ministry of Education Key Laboratory for the Synthesis and Application of Organic Functional Molecules & College of Chemistry and Chemical Engineering, Hubei University, Wuhan 430062, PR China.
| | - Wei Wen
- Hubei Collaborative Innovation Center for Advanced Organic Chemical Materials, Ministry of Education Key Laboratory for the Synthesis and Application of Organic Functional Molecules & College of Chemistry and Chemical Engineering, Hubei University, Wuhan 430062, PR China.
| | - Xiuhua Zhang
- Hubei Collaborative Innovation Center for Advanced Organic Chemical Materials, Ministry of Education Key Laboratory for the Synthesis and Application of Organic Functional Molecules & College of Chemistry and Chemical Engineering, Hubei University, Wuhan 430062, PR China.
| | - Haoshuang Gu
- Hubei Collaborative Innovation Center for Advanced Organic Chemical Materials, Ministry of Education Key Laboratory for the Synthesis and Application of Organic Functional Molecules & College of Chemistry and Chemical Engineering, Hubei University, Wuhan 430062, PR China.
| | - Shengfu Wang
- Hubei Collaborative Innovation Center for Advanced Organic Chemical Materials, Ministry of Education Key Laboratory for the Synthesis and Application of Organic Functional Molecules & College of Chemistry and Chemical Engineering, Hubei University, Wuhan 430062, PR China.
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Pérez-Ruiz E, Lammertyn J, Spasic D. Evaluation of different strategies for magnetic particle functionalization with DNA aptamers. N Biotechnol 2016; 33:755-762. [PMID: 27318011 DOI: 10.1016/j.nbt.2016.06.1459] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2016] [Revised: 06/13/2016] [Accepted: 06/13/2016] [Indexed: 11/30/2022]
Abstract
The optimal bio-functionalization of magnetic particles is essential for developing magnetic particle-based bioassays. Whereas functionalization with antibodies is generally well established, immobilization of DNA probes, such as aptamers, is not yet fully explored. In this work, four different types of commercially available magnetic particles, coated with streptavidin, maleimide or carboxyl groups, were evaluated for their surface coverage with aptamer bioreceptors, efficiency in capturing target protein and non-specific protein adsorption on their surface. A recently developed aptamer against the peanut allergen, Ara h 1 protein, was used as a model system. Conjugation of biotinylated Ara h 1 aptamer to the streptavidin particles led to the highest surface coverage, whereas the coverage of maleimide particles was 25% lower. Carboxylated particles appeared to be inadequate for DNA functionalization. Streptavidin particles also showed the greatest target capturing efficiency, comparable to the one of particles functionalized with anti-Ara h 1 antibody. The performance of streptavidin particles was additionally tested in a sandwich assay with the aptamer as a capture receptor on the particle surface. While the limit of detection obtained was comparable to the same assay system with antibody as capture receptor, it was superior to previously reported values using the same aptamer in similar assay schemes with different detection platforms. These results point to the promising application of the Ara h 1 aptamer-functionalized particles in bioassay development.
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Affiliation(s)
- Elena Pérez-Ruiz
- Department of Biosystems-MeBioS-Biosensor Group, KU Leuven, Leuven, Belgium
| | - Jeroen Lammertyn
- Department of Biosystems-MeBioS-Biosensor Group, KU Leuven, Leuven, Belgium.
| | - Dragana Spasic
- Department of Biosystems-MeBioS-Biosensor Group, KU Leuven, Leuven, Belgium
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Lin X, Sun X, Luo S, Liu B, Yang C. Development of DNA-based signal amplification and microfluidic technology for protein assay: A review. Trends Analyt Chem 2016. [DOI: 10.1016/j.trac.2016.02.020] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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56
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Karaballi RA, Nel A, Krishnan S, Blackburn J, Brosseau CL. Development of an electrochemical surface-enhanced Raman spectroscopy (EC-SERS) aptasensor for direct detection of DNA hybridization. Phys Chem Chem Phys 2016; 17:21356-63. [PMID: 25780805 DOI: 10.1039/c4cp05077k] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Rapid detection of disease biomarkers at the patient point-of-care is essential to timely and effective treatment. The research described herein focuses on the development of an electrochemical surface-enhanced Raman spectroscopy (EC-SERS) DNA aptasensor capable of direct detection of tuberculosis (TB) DNA. Specifically, a plausible DNA biomarker present in TB patient urine was chosen as the model target for detection. Cost-effective screen printed electrodes (SPEs) modified with silver nanoparticles (AgNP) were used as the aptasensor platform, onto which the aptamer specific for the target DNA was immobilized. Direct detection of the target DNA was demonstrated through the appearance of SERS peaks characteristic for adenine, present only in the target strand. Modulation of the applied potential allowed for a sizeable increase in the observed SERS response and the use of thiol back-filling prevented non-specific adsorption of non-target DNA. To our knowledge, this work represents the first EC-SERS study of an aptasensor for the direct, label-free detection of DNA hybridization. Such a technology paves the way for rapid detection of disease biomarkers at the patient point-of-care.
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Affiliation(s)
- R A Karaballi
- Department of Chemistry, Saint Mary's University, Halifax, Nova Scotia B3H 3C3, Canada.
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57
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Jung IY, Lee EH, Suh AY, Lee SJ, Lee H. Oligonucleotide-based biosensors for in vitro diagnostics and environmental hazard detection. Anal Bioanal Chem 2016; 408:2383-406. [PMID: 26781106 DOI: 10.1007/s00216-015-9212-2] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2015] [Revised: 10/19/2015] [Accepted: 11/23/2015] [Indexed: 02/06/2023]
Abstract
Oligonucleotide-based biosensors have drawn much attention because of their broad applications in in vitro diagnostics and environmental hazard detection. They are particularly of interest to many researchers because of their high specificity as well as excellent sensitivity. Recently, oligonucleotide-based biosensors have been used to achieve not only genetic detection of targets but also the detection of small molecules, peptides, and proteins. This has further broadened the applications of these sensors in the medical and health care industry. In this review, we highlight various examples of oligonucleotide-based biosensors for the detection of diseases, drugs, and environmentally hazardous chemicals. Each example is provided with detailed schematics of the detection mechanism in addition to the supporting experimental results. Furthermore, future perspectives and new challenges in oligonucleotide-based biosensors are discussed.
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Affiliation(s)
- Il Young Jung
- College of Pharmacy, Graduate School of Pharmaceutical Sciences, Ewha Womans University, Seoul, 03760, Republic of Korea
| | - Eun Hee Lee
- College of Pharmacy, Graduate School of Pharmaceutical Sciences, Ewha Womans University, Seoul, 03760, Republic of Korea
| | - Ah Young Suh
- College of Pharmacy, Graduate School of Pharmaceutical Sciences, Ewha Womans University, Seoul, 03760, Republic of Korea
| | - Seung Jin Lee
- College of Pharmacy, Graduate School of Pharmaceutical Sciences, Ewha Womans University, Seoul, 03760, Republic of Korea
| | - Hyukjin Lee
- College of Pharmacy, Graduate School of Pharmaceutical Sciences, Ewha Womans University, Seoul, 03760, Republic of Korea.
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Keshtkar M, Shahbazi-Gahrouei D, Khoshfetrat SM, Mehrgardi MA, Aghaei M. Aptamer-conjugated Magnetic Nanoparticles as Targeted Magnetic Resonance Imaging Contrast Agent for Breast Cancer. JOURNAL OF MEDICAL SIGNALS AND SENSORS 2016; 6:243-247. [PMID: 28028501 PMCID: PMC5157001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
Early detection of breast cancer is the most effective way to improve the survival rate in women. Magnetic resonance imaging (MRI) offers high spatial resolution and good anatomic details, and its lower sensitivity can be improved by using targeted molecular imaging. In this study, AS1411 aptamer was conjugated to Fe3O4@Au nanoparticles for specific targeting of mouse mammary carcinoma (4T1) cells that overexpress nucleolin. In vitro cytotoxicity of aptamer-conjugated nanoparticles was assessed on 4T1 and HFFF-PI6 (control) cells. The ability of the synthesized nanoprobe to target specifically the nucleolin overexpressed cells was assessed with the MRI technique. Results show that the synthesized nanoprobe produced strongly darkened T2-weighted magnetic resonance (MR) images with 4T1 cells, whereas the MR images of HFFF-PI6 cells incubated with the nanoprobe are brighter, showing small changes compared to water. The results demonstrate that in a Fe concentration of 45 μg/mL, the nanoprobe reduced by 90% MR image intensity in 4T1 cells compared with the 27% reduction in HFFF-PI6 cells. Analysis of MR signal intensity showed statistically significant signal intensity difference between 4T1 and HFFF-PI6 cells treated with the nanoprobe. MRI experiments demonstrate the high potential of the synthesized nanoprobe as a specific MRI contrast agent for detection of nucleolin-expressing breast cancer cells.
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Affiliation(s)
- Mohammad Keshtkar
- Department of Medical Physics, School of Medicine, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Daryoush Shahbazi-Gahrouei
- Department of Medical Physics, School of Medicine, Isfahan University of Medical Sciences, Isfahan, Iran,Address for correspondence: Daryoush Shahbazi-Gahrouei, Professor of Medical Physics, Department of Medical Physics, Isfahan University of Medical Sciences, Isfahan, Iran. E-mail: ,
| | | | | | - Mahmoud Aghaei
- Department of Clinical Biochemistry, School of Pharmacy and Isfahan Pharmaceutical Sciences Research Center, Isfahan University of Medical Sciences, Isfahan, Iran
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59
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Tang W, Zhang T, Li Q, Wang H, Wang H, Li Z. Sensitive detection of tumor cells based on aptamer recognition and isothermal exponential amplification. RSC Adv 2016. [DOI: 10.1039/c6ra18225a] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022] Open
Abstract
A versatile strategy is developed for the detection of tumor cells by combining aptamer-based specific cell recognition and EXPAR-based signal amplification.
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Affiliation(s)
- Wei Tang
- Key Laboratory of Applied Surface and Colloid Chemistry
- Ministry of Education
- Key Laboratory of Analytical Chemistry for Life Science of Shaanxi Province
- School of Chemistry and Chemical Engineering
- Shaanxi Normal University
| | - Ting Zhang
- Key Laboratory of Applied Surface and Colloid Chemistry
- Ministry of Education
- Key Laboratory of Analytical Chemistry for Life Science of Shaanxi Province
- School of Chemistry and Chemical Engineering
- Shaanxi Normal University
| | - Qinggui Li
- Department of Orthopaedics
- Affiliated Hospital of Hebei University
- Baoding 071002
- P. R. China
| | - Hui Wang
- Key Laboratory of Applied Surface and Colloid Chemistry
- Ministry of Education
- Key Laboratory of Analytical Chemistry for Life Science of Shaanxi Province
- School of Chemistry and Chemical Engineering
- Shaanxi Normal University
| | - Honghong Wang
- Key Laboratory of Applied Surface and Colloid Chemistry
- Ministry of Education
- Key Laboratory of Analytical Chemistry for Life Science of Shaanxi Province
- School of Chemistry and Chemical Engineering
- Shaanxi Normal University
| | - Zhengping Li
- Key Laboratory of Applied Surface and Colloid Chemistry
- Ministry of Education
- Key Laboratory of Analytical Chemistry for Life Science of Shaanxi Province
- School of Chemistry and Chemical Engineering
- Shaanxi Normal University
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60
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Cheng D, Yu M, Fu F, Han W, Li G, Xie J, Song Y, Swihart MT, Song E. Dual Recognition Strategy for Specific and Sensitive Detection of Bacteria Using Aptamer-Coated Magnetic Beads and Antibiotic-Capped Gold Nanoclusters. Anal Chem 2015; 88:820-5. [PMID: 26641108 DOI: 10.1021/acs.analchem.5b03320] [Citation(s) in RCA: 115] [Impact Index Per Article: 12.8] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Food poisoning and infectious diseases caused by pathogenic bacteria such as Staphylococcus aureus (SA) are serious public health concerns. A method of specific, sensitive, and rapid detection of such bacteria is essential and important. This study presents a strategy that combines aptamer and antibiotic-based dual recognition units with magnetic enrichment and fluorescent detection to achieve specific and sensitive quantification of SA in authentic specimens and in the presence of much higher concentrations of other bacteria. Aptamer-coated magnetic beads (Apt-MB) were employed for specific capture of SA. Vancomycin-stabilized fluorescent gold nanoclusters (AuNCs@Van) were prepared by a simple one-step process and used for sensitive quantification of SA in the range of 32-10(8) cfu/mL with the detection limit of 16 cfu/mL via a fluorescence intensity measurement. And using this strategy, about 70 cfu/mL of SA in complex samples (containing 3 × 10(8) cfu/mL of other different contaminated bacteria) could be successfully detected. In comparison to prior studies, the developed strategy here not only simplifies the preparation procedure of the fluorescent probes (AuNCs@Van) to a great extent but also could sensitively quantify SA in the presence of much higher concentrations of other bacteria directly with good accuracy. Moreover, the aptamer and antibiotic used in this strategy are much less expensive and widely available compared to common-used antibodies, making it cost-effective. This general aptamer- and antibiotic-based dual recognition strategy, combined with magnetic enrichment and fluorescent detection of trace bacteria, shows great potential application in monitoring bacterial food contamination and infectious diseases.
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Affiliation(s)
- Dan Cheng
- Key Laboratory of Luminescence and Real-Time Analytical Chemistry, Ministry of Education, College of Pharmaceutical Sciences, Southwest University , Chongqing 400715, People's Republic of China
| | - Mengqun Yu
- Key Laboratory of Luminescence and Real-Time Analytical Chemistry, Ministry of Education, College of Pharmaceutical Sciences, Southwest University , Chongqing 400715, People's Republic of China
| | - Fei Fu
- Key Laboratory of Luminescence and Real-Time Analytical Chemistry, Ministry of Education, College of Pharmaceutical Sciences, Southwest University , Chongqing 400715, People's Republic of China
| | - Weiye Han
- Key Laboratory of Luminescence and Real-Time Analytical Chemistry, Ministry of Education, College of Pharmaceutical Sciences, Southwest University , Chongqing 400715, People's Republic of China
| | - Gan Li
- Key Laboratory of Luminescence and Real-Time Analytical Chemistry, Ministry of Education, College of Pharmaceutical Sciences, Southwest University , Chongqing 400715, People's Republic of China
| | - Jianping Xie
- College of Life Sciences, Southwest University , Chongqing 400715, People's Republic of China
| | - Yang Song
- Key Laboratory of Luminescence and Real-Time Analytical Chemistry, Ministry of Education, College of Pharmaceutical Sciences, Southwest University , Chongqing 400715, People's Republic of China
| | - Mark T Swihart
- Department of Chemical and Biological Engineering, University at Buffalo, State University of New York , Buffalo, New York 14260, United States
| | - Erqun Song
- Key Laboratory of Luminescence and Real-Time Analytical Chemistry, Ministry of Education, College of Pharmaceutical Sciences, Southwest University , Chongqing 400715, People's Republic of China
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61
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Jin C, Zheng J, Li C, Qiu L, Zhang X, Tan W. Aptamers Selected by Cell-SELEX for Molecular Imaging. J Mol Evol 2015; 81:162-71. [PMID: 26584804 PMCID: PMC5510553 DOI: 10.1007/s00239-015-9716-6] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2015] [Accepted: 11/03/2015] [Indexed: 11/29/2022]
Abstract
Conventional diagnostics for cancer rely primarily on anatomical techniques. However, these techniques cannot monitor the changes at the molecular level in normal cells, which possibly signal the onset of cancer at its very earliest stages. For accurate prediction of the carcinogenesis at the molecular level, targeting ligands have been used in combination with imaging probes to monitor this biological process. Among these targeting ligands, aptamers have high binding affinity to various targets ranging from small molecules to whole organisms, and, hence, exceptional recognition ability. Many recent studies have been reported on aptamer-based molecular imaging, clearly indicating its clinical and diagnostic utility. In this review, we will discuss some key results of these studies.
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Affiliation(s)
- Cheng Jin
- Molecular Science and Biomedicine Laboratory, State Key Laboratory of Chemo/Bio-Sensing and Chemometrics, College of Chemistry and Chemical Engineering and College of Biology, and Collaborative Research Center of Molecular Engineering for Theranostics, Hunan University, Changsha, 410082, China
| | - Jing Zheng
- Molecular Science and Biomedicine Laboratory, State Key Laboratory of Chemo/Bio-Sensing and Chemometrics, College of Chemistry and Chemical Engineering and College of Biology, and Collaborative Research Center of Molecular Engineering for Theranostics, Hunan University, Changsha, 410082, China
| | - Chunmei Li
- Key Laboratory of Luminescent and Real-Time Analytical Chemistry, Ministry of Education, College of Pharmaceutical Sciences, Southwest University, Chongqing, 400715, China
| | - Liping Qiu
- Molecular Science and Biomedicine Laboratory, State Key Laboratory of Chemo/Bio-Sensing and Chemometrics, College of Chemistry and Chemical Engineering and College of Biology, and Collaborative Research Center of Molecular Engineering for Theranostics, Hunan University, Changsha, 410082, China
- Department of Chemistry and Department of Physiology and Functional Genomics, Center for Research at Bio/Nano Interface, Health Cancer Center, UF Genetics Institute and McKnight Brain Institute, University of Florida, Gainesville, FL, 32611-7200, USA
| | - Xiaobing Zhang
- Molecular Science and Biomedicine Laboratory, State Key Laboratory of Chemo/Bio-Sensing and Chemometrics, College of Chemistry and Chemical Engineering and College of Biology, and Collaborative Research Center of Molecular Engineering for Theranostics, Hunan University, Changsha, 410082, China.
| | - Weihong Tan
- Molecular Science and Biomedicine Laboratory, State Key Laboratory of Chemo/Bio-Sensing and Chemometrics, College of Chemistry and Chemical Engineering and College of Biology, and Collaborative Research Center of Molecular Engineering for Theranostics, Hunan University, Changsha, 410082, China.
- Department of Chemistry and Department of Physiology and Functional Genomics, Center for Research at Bio/Nano Interface, Health Cancer Center, UF Genetics Institute and McKnight Brain Institute, University of Florida, Gainesville, FL, 32611-7200, USA.
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62
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Piperine loaded PEG-PLGA nanoparticles: Preparation, characterization and targeted delivery for adjuvant breast cancer chemotherapy. J Drug Deliv Sci Technol 2015. [DOI: 10.1016/j.jddst.2015.08.009] [Citation(s) in RCA: 62] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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63
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Chinen AB, Guan CM, Ferrer JR, Barnaby SN, Merkel TJ, Mirkin CA. Nanoparticle Probes for the Detection of Cancer Biomarkers, Cells, and Tissues by Fluorescence. Chem Rev 2015; 115:10530-74. [PMID: 26313138 DOI: 10.1021/acs.chemrev.5b00321] [Citation(s) in RCA: 623] [Impact Index Per Article: 69.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Affiliation(s)
- Alyssa B Chinen
- Department of Chemistry, ‡Department of Chemical Engineering, §Department of Interdepartmental Biological Sciences, and ∥International Institute for Nanotechnology, Northwestern University , 2145 Sheridan Road, Evanston, Illinois 60208, United States
| | - Chenxia M Guan
- Department of Chemistry, ‡Department of Chemical Engineering, §Department of Interdepartmental Biological Sciences, and ∥International Institute for Nanotechnology, Northwestern University , 2145 Sheridan Road, Evanston, Illinois 60208, United States
| | - Jennifer R Ferrer
- Department of Chemistry, ‡Department of Chemical Engineering, §Department of Interdepartmental Biological Sciences, and ∥International Institute for Nanotechnology, Northwestern University , 2145 Sheridan Road, Evanston, Illinois 60208, United States
| | - Stacey N Barnaby
- Department of Chemistry, ‡Department of Chemical Engineering, §Department of Interdepartmental Biological Sciences, and ∥International Institute for Nanotechnology, Northwestern University , 2145 Sheridan Road, Evanston, Illinois 60208, United States
| | - Timothy J Merkel
- Department of Chemistry, ‡Department of Chemical Engineering, §Department of Interdepartmental Biological Sciences, and ∥International Institute for Nanotechnology, Northwestern University , 2145 Sheridan Road, Evanston, Illinois 60208, United States
| | - Chad A Mirkin
- Department of Chemistry, ‡Department of Chemical Engineering, §Department of Interdepartmental Biological Sciences, and ∥International Institute for Nanotechnology, Northwestern University , 2145 Sheridan Road, Evanston, Illinois 60208, United States
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64
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Xue X, Zhao Y, Zhang X, Zhang C, Kumar A, Zhang X, Zou G, Wang PC, Zhang J, Liang XJ. Phenylboronic acid-functionalized magnetic nanoparticles for one-step saccharides enrichment and mass spectrometry analysis. BIOPHYSICS REPORTS 2015; 1:61-70. [PMID: 26942220 PMCID: PMC4762129 DOI: 10.1007/s41048-015-0002-3] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2015] [Accepted: 04/01/2015] [Indexed: 11/16/2022] Open
Abstract
Abstract In this work, 2-(2-aminoethoxy) ethanol-blocked phenylboronic acid-functionalized magnetic nanoparticles (blocked PMNPs) were fabricated for selective enrichment of different types of saccharides. The phenylboronic acid was designed for capturing the cis-diols moieties on saccharides molecules, and the 2-(2-aminoethoxy) ethanol can deplete the nonspecific absorption of peptides and proteins which always coexisted with saccharides. For mass spectrometry analysis, the PMNPs bound saccharides can be directly applied onto the MALDI plate with matrix without removing the PMNPs. By PMNPs, the simple saccharide (glucose) could be detected in pmol level. The complex saccharides can also be reliably purified and analyzed; 16 different N-glycans were successfully identified from ovalbumin, and the high-abundance N-glycans can be detected even when the ovalbumin was in very low concentration (2 μg). In human milk, ten different oligosaccharides were identified, and the lactose can still be detected when the human milk concentration was low to 0.01 μL. Graphical Abstract ![]()
Electronic supplementary material The online version of this article (doi:10.1007/s41048-015-0002-3) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Xiangdong Xue
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety, National Center for Nanoscience and Technology, Beijing, 100190 China
| | - Yuanyuan Zhao
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety, National Center for Nanoscience and Technology, Beijing, 100190 China
| | - Xu Zhang
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety, National Center for Nanoscience and Technology, Beijing, 100190 China
| | - Chunqiu Zhang
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety, National Center for Nanoscience and Technology, Beijing, 100190 China
| | - Anil Kumar
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety, National Center for Nanoscience and Technology, Beijing, 100190 China
| | - Xiaoning Zhang
- Laboratory of Pharmaceutics, School of Medicine, Tsinghua University, Beijing, 100084 China
| | - Guozhang Zou
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety, National Center for Nanoscience and Technology, Beijing, 100190 China
| | - Paul C Wang
- Fu Jen Catholic University, Taipei, 24205 China
| | - Jinchao Zhang
- College of Chemistry & Environmental Science, Chemical Biology Key Laboratory of Hebei Province, Hebei University, Baoding, 071002 China
| | - Xing-Jie Liang
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety, National Center for Nanoscience and Technology, Beijing, 100190 China
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65
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Ayaz Ahmed KB, Mohammed AS, Veerappan A. Interaction of sugar stabilized silver nanoparticles with the T-antigen specific lectin, jacalin from Artocarpus integrifolia. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2015; 145:110-116. [PMID: 25770933 DOI: 10.1016/j.saa.2015.01.133] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/05/2014] [Revised: 01/17/2015] [Accepted: 01/29/2015] [Indexed: 06/04/2023]
Abstract
The advances in nanomedicine demonstrate the anticancer properties of silver nanoparticles (AgNPs) and considered as an alternative to the available chemotherapeutic agents. Owing to the preferential interaction of Artocarpus integrifolia lectin (jacalin) with Galβ1-3GalNAcα (a chemically well-defined tumor associated antigen), a study was undertaken to understand the interaction mechanism of AgNPs with jacalin in presence of specific sugar, galactose. Fluorescence spectroscopic analysis revealed that the AgNPs binding significantly quenched the intrinsic fluorescence of jacalin through a static quenching mechanism, and a non-radiative energy transfer occurred within the molecules. Association constants obtained from the interaction of different sugar-stabilized AgNPs with jacalin are in the order of 10(4)M(-1), this is in the same range as those obtained for the interaction of lectin with carbohydrate and hydrophobic ligand. Each subunit of the tetrameric jacalin binds one AgNPs, and the stoichiometry was unaffected by the presence of the specific sugar, galactose. Hemagglutination assay shows that sugar stabilized AgNPs interacts to jacalin at a site that is different from the saccharide-binding site. Analysis of the FTIR spectra of jacalin indicates that the binding of AgNPs does not alter the secondary structure of jacalin. More importantly, AgNPs exists in nano form even after interacting with the lectin. These results suggest that the development of lectin-AgNPs conjugate would be possible for diagnosis and treatment of cancer.
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Affiliation(s)
- Khan Behlol Ayaz Ahmed
- Department of Chemistry, School of Chemical and Biotechnology, SASTRA University, Thirumalaisamudaram, Thanjavur, Tamil Nadu, India
| | - Ansari Sulthan Mohammed
- Department of Chemistry, School of Chemical and Biotechnology, SASTRA University, Thirumalaisamudaram, Thanjavur, Tamil Nadu, India
| | - Anbazhagan Veerappan
- Department of Chemistry, School of Chemical and Biotechnology, SASTRA University, Thirumalaisamudaram, Thanjavur, Tamil Nadu, India.
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66
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Aptamers Selected to Postoperative Lung Adenocarcinoma Detect Circulating Tumor Cells in Human Blood. Mol Ther 2015; 23:1486-96. [PMID: 26061649 PMCID: PMC4817883 DOI: 10.1038/mt.2015.108] [Citation(s) in RCA: 68] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2014] [Accepted: 06/04/2015] [Indexed: 12/18/2022] Open
Abstract
Circulating tumor cells (CTCs) are rare cells and valuable clinical markers of prognosis of metastasis formation and prediction of patient survival. Most CTC analyses are based on the antibody-based detection of a few epithelial markers; therefore miss an important portion of mesenchymal cancer cells circulating in blood. In this work, we selected and identified DNA aptamers as specific affinity probes that bind to lung adenocarcinoma cells derived from postoperative tissues. The unique feature of our selection strategy is that aptamers are produced for lung cancer cell biomarkers in their native state and conformation without previous knowledge of the biomarkers. The aptamers did not bind to normal lung cells and lymphocytes, and had very low affinity to A549 lung adenocarcinoma culture. We applied these aptamers to detect CTCs, apoptotic bodies, and microemboli in clinical samples of peripheral blood of lung cancer and metastatic lung cancer patients. We identified aptamer-associated protein biomarkers for lung cancer such as vimentin, annexin A2, annexin A5, histone 2B, neutrophil defensin, and clusterin. Tumor-specific aptamers can be produced for individual patients and synthesized many times during anticancer therapy, thereby opening up the possibility of personalized diagnostics.
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67
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Xu J, Teng IT, Zhang L, Delgado S, Champanhac C, Cansiz S, Wu C, Shan H, Tan W. Molecular Recognition of Human Liver Cancer Cells Using DNA Aptamers Generated via Cell-SELEX. PLoS One 2015; 10:e0125863. [PMID: 25938802 PMCID: PMC4418664 DOI: 10.1371/journal.pone.0125863] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2015] [Accepted: 03/25/2015] [Indexed: 12/14/2022] Open
Abstract
Most clinical cases of liver cancer cannot be diagnosed until they have evolved to an advanced stage, thus resulting in high mortality. It is well recognized that the implementation of early detection methods and the development of targeted therapies for liver cancer are essential to reducing the high mortality rates associated with this disease. To achieve these goals, molecular probes capable of recognizing liver cancer cell-specific targets are needed. Here we describe a panel of aptamers able to distinguish hepatocarcinoma from normal liver cells. The aptamers, which were selected by cell-based SELEX (Systematic Evolution of Ligands by Exponential Enrichment), have Kd values in the range of 64-349 nM toward the target human hepatoma cell HepG2, and also recognize ovarian cancer cells and lung adenocarcinoma. The proteinase treatment experiment indicated that all aptamers could recognize target HepG2 cells through surface proteins. This outcome suggested that these aptamers could be used as potential probes for further research in cancer studies, such as developing early detection assays, targeted therapies, and imaging agents, as well as for the investigation of common membrane proteins in these distinguishable cancers.
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Affiliation(s)
- Jiehua Xu
- Department of Nuclear Medicine, The Third Affiliated Hospital, Sun Yat-Sen University, Guangzhou, Guangdong, China
- Department of Chemistry, Department of Biochemistry and Molecular Biology and Department of Physiology and Functional Genomics, Center for Research at the Bio/Nano Interface, Health Cancer Center, UF Genetics Institute and McKnight Brain Institute, University of Florida, Gainesville, FL, United States of America
| | - I-Ting Teng
- Department of Chemistry, Department of Biochemistry and Molecular Biology and Department of Physiology and Functional Genomics, Center for Research at the Bio/Nano Interface, Health Cancer Center, UF Genetics Institute and McKnight Brain Institute, University of Florida, Gainesville, FL, United States of America
| | - Liqin Zhang
- Department of Chemistry, Department of Biochemistry and Molecular Biology and Department of Physiology and Functional Genomics, Center for Research at the Bio/Nano Interface, Health Cancer Center, UF Genetics Institute and McKnight Brain Institute, University of Florida, Gainesville, FL, United States of America
| | - Stefanie Delgado
- Department of Chemistry, Department of Biochemistry and Molecular Biology and Department of Physiology and Functional Genomics, Center for Research at the Bio/Nano Interface, Health Cancer Center, UF Genetics Institute and McKnight Brain Institute, University of Florida, Gainesville, FL, United States of America
| | - Carole Champanhac
- Department of Chemistry, Department of Biochemistry and Molecular Biology and Department of Physiology and Functional Genomics, Center for Research at the Bio/Nano Interface, Health Cancer Center, UF Genetics Institute and McKnight Brain Institute, University of Florida, Gainesville, FL, United States of America
| | - Sena Cansiz
- Department of Chemistry, Department of Biochemistry and Molecular Biology and Department of Physiology and Functional Genomics, Center for Research at the Bio/Nano Interface, Health Cancer Center, UF Genetics Institute and McKnight Brain Institute, University of Florida, Gainesville, FL, United States of America
| | - Cuichen Wu
- Department of Chemistry, Department of Biochemistry and Molecular Biology and Department of Physiology and Functional Genomics, Center for Research at the Bio/Nano Interface, Health Cancer Center, UF Genetics Institute and McKnight Brain Institute, University of Florida, Gainesville, FL, United States of America
| | - Hong Shan
- Interventional Radiology Institute, Department of Radiology, The Third Affiliated Hospital, Sun Yat-Sen University, Guangzhou, Guangdong, China
| | - Weihong Tan
- Department of Chemistry, Department of Biochemistry and Molecular Biology and Department of Physiology and Functional Genomics, Center for Research at the Bio/Nano Interface, Health Cancer Center, UF Genetics Institute and McKnight Brain Institute, University of Florida, Gainesville, FL, United States of America
- * E-mail:
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68
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Taghdisi SM, Danesh NM, Lavaee P, Ramezani M, Abnous K. An aptasensor for selective, sensitive and fast detection of lead(II) based on polyethyleneimine and gold nanoparticles. ENVIRONMENTAL TOXICOLOGY AND PHARMACOLOGY 2015; 39:1206-11. [PMID: 25989533 DOI: 10.1016/j.etap.2015.04.013] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/23/2014] [Revised: 04/17/2015] [Accepted: 04/18/2015] [Indexed: 05/26/2023]
Abstract
Lead (Pb), as a major environmental contaminant, could be harmful to humans when inhaled or ingested. In this study, we developed a sensitive, selective and fast colorimetric aptasensor for Pb(+2) based on polyethylenimine (PEI) and gold nanoparticles (AuNPs). In the absence of Pb(+2), aptamer binds to PEI. So the well-dispersed AuNPs remain stable with a wine-red color. Upon the addition of Pb(+2), a conformational change happens and a G-quadruplex aptamer/Pb(+2) complex is formed, leading to the aggregation of AuNPs and a color change to blue. This sensor showed a high selectivity toward Pb(+2) with a limit of detection (LOD) as low as 702pM. Moreover, our fabricated sensor was successfully applied for Pb(+2) detection in rat serum and tap water.
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Affiliation(s)
- Seyed Mohammad Taghdisi
- Targeted Drug Delivery Research Center, School of Pharmacy, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Noor Mohammad Danesh
- Research Institute of Sciences and New Technology, Mashhad, Iran; Nanotechnology Research Center, School of Pharmacy, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Parirokh Lavaee
- Department of Chemistry, Ferdowsi University of Mashhad, Mashhad, Iran
| | - Mohammad Ramezani
- Nanotechnology Research Center, School of Pharmacy, Mashhad University of Medical Sciences, Mashhad, Iran.
| | - Khalil Abnous
- Pharmaceutical Research Center, School of Pharmacy, Mashhad University of Medical Sciences, Mashhad, Iran.
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69
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Sharifi S, Seyednejad H, Laurent S, Atyabi F, Saei AA, Mahmoudi M. Superparamagnetic iron oxide nanoparticles for in vivo molecular and cellular imaging. CONTRAST MEDIA & MOLECULAR IMAGING 2015; 10:329-55. [PMID: 25882768 DOI: 10.1002/cmmi.1638] [Citation(s) in RCA: 85] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/11/2014] [Revised: 01/30/2015] [Accepted: 02/06/2015] [Indexed: 12/16/2022]
Abstract
In the last decade, the biomedical applications of nanoparticles (NPs) (e.g. cell tracking, biosensing, magnetic resonance imaging (MRI), targeted drug delivery, and tissue engineering) have been increasingly developed. Among the various NP types, superparamagnetic iron oxide NPs (SPIONs) have attracted considerable attention for early detection of diseases due to their specific physicochemical properties and their molecular imaging capabilities. A comprehensive review is presented on the recent advances in the development of in vitro and in vivo SPION applications for molecular imaging, along with opportunities and challenges.
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Affiliation(s)
- Shahriar Sharifi
- Department of Biomaterials Science and Technology, University of Twente, The Netherlands
| | - Hajar Seyednejad
- Department of Bioengineering, Rice University, Houston, TX, 77005, USA
| | - Sophie Laurent
- Department of General, Organic, and Biomedical Chemistry, NMR and Molecular Imaging Laboratory, University of Mons, Avenue Maistriau 19, B-7000, Mons, Belgium.,CMMI - Center for Microscopy and Molecular Imaging, Rue Adrienne Bolland 8, B-6041, Gosselies, Belgium
| | - Fatemeh Atyabi
- Nanotechnology Research Center and Department of Nanotechnology, Faculty of Pharmacy, Tehran University of Medical Sciences, Tehran, Iran
| | - Amir Ata Saei
- Nanotechnology Research Center and Department of Nanotechnology, Faculty of Pharmacy, Tehran University of Medical Sciences, Tehran, Iran.,Department of Medical Biochemistry and Biophysics, Karolinska Institutet, Stockholm, Sweden
| | - Morteza Mahmoudi
- Nanotechnology Research Center and Department of Nanotechnology, Faculty of Pharmacy, Tehran University of Medical Sciences, Tehran, Iran.,Division of Cardiovascular Medicine, Department of Medicine, Stanford University School of Medicine, Stanford, CA, USA.,Cardiovascular Institute, Department of Medicine, Stanford University School of Medicine, Stanford, CA, USA
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70
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Comparison of whole-cell SELEX methods for the identification of Staphylococcus aureus-specific DNA aptamers. SENSORS 2015; 15:8884-97. [PMID: 25884791 PMCID: PMC4431181 DOI: 10.3390/s150408884] [Citation(s) in RCA: 52] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/06/2015] [Revised: 03/28/2015] [Accepted: 04/09/2015] [Indexed: 01/10/2023]
Abstract
Whole-cell Systemic Evolution of Ligands by Exponential enrichment (SELEX) is the process by which aptamers specific to target cells are developed. Aptamers selected by whole-cell SELEX have high affinity and specificity for bacterial surface molecules and live bacterial targets. To identify DNA aptamers specific to Staphylococcus aureus, we applied our rapid whole-cell SELEX method to a single-stranded ssDNA library. To improve the specificity and selectivity of the aptamers, we designed, selected, and developed two categories of aptamers that were selected by two kinds of whole-cell SELEX, by mixing and combining FACS analysis and a counter-SELEX process. Using this approach, we have developed a biosensor system that employs a high affinity aptamer for detection of target bacteria. FAM-labeled aptamer sequences with high binding to S. aureus, as determined by fluorescence spectroscopic analysis, were identified, and aptamer A14, selected by the basic whole-cell SELEX using a once-off FACS analysis, and which had a high binding affinity and specificity, was chosen. The binding assay was evaluated using FACS analysis. Our study demonstrated the development of a set of whole-cell SELEX derived aptamers specific to S. aureus; this approach can be used in the identification of other bacteria.
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71
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Ultrasensitive detection of drug resistant cancer cells in biological matrixes using an amperometric nanobiosensor. Biosens Bioelectron 2015; 70:418-25. [PMID: 25845334 DOI: 10.1016/j.bios.2015.03.069] [Citation(s) in RCA: 43] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2015] [Revised: 03/10/2015] [Accepted: 03/26/2015] [Indexed: 11/20/2022]
Abstract
Multidrug resistance (MDR) is a key issue in the failure of cancer chemotherapy and its detection will be helpful to develop suitable therapeutic strategies for cancer patients and overcome the death rates. In this direction, we designed a new amperometric sensor (a medical device prototype) to detect drug resistant cancer cells by sensing "Permeability glycoprotein (P-gp)". The sensor probe is fabricated by immobilizing monoclonal P-gp antibody on the gold nanoparticles (AuNPs) conducting polymer composite. The detection relies on a sandwich-type approach using a bioconjugate, where the aminophenyl boronic acid (APBA) served as a recognition molecule which binds with the cell surface glycans and hydrazine (Hyd) served as an electrocatalyst for the reduction of H2O2 which are attached on multi-wall carbon nanotube (MWCNT) (APBA-MWCNT-Hyd). A linear range for the cancer cell detection is obtained between 50 and 100,000 cells/mL with the detection limit of 23±2 cells/mL. The proposed immunosensor is successfully applied to detect MDR cancer cells (MDRCC) in serum and mixed cell samples. Interferences by drug sensitive (SKBr-3 and HeLa), noncancerous cells (HEK-293 and OSE), and other chemical molecules present in the real sample matrix are examined. The sensitivity of the proposed immunosensor is excellent compared with the conventional reporter antibody based assay.
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72
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Taghdisi SM, Danesh NM, Lavaee P, Sarreshtehdar Emrani A, Ramezani M, Abnous K. Aptamer Biosensor for Selective and Rapid Determination of Insulin. ANAL LETT 2014. [DOI: 10.1080/00032719.2014.956216] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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73
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Jacobs J, Byrne A, Gathergood N, Keyes TE, Heuts JPA, Heise A. Facile Synthesis of Fluorescent Latex Nanoparticles with Selective Binding Properties Using Amphiphilic Glycosylated Polypeptide Surfactants. Macromolecules 2014. [DOI: 10.1021/ma5020462] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- J. Jacobs
- School
of Chemical Sciences, Dublin City University, Glasnevin, Dublin 9, Ireland
| | - A. Byrne
- School
of Chemical Sciences, Dublin City University, Glasnevin, Dublin 9, Ireland
| | - N. Gathergood
- School
of Chemical Sciences, Dublin City University, Glasnevin, Dublin 9, Ireland
| | - T. E. Keyes
- School
of Chemical Sciences, Dublin City University, Glasnevin, Dublin 9, Ireland
| | - J. P. A. Heuts
- Department
of Chemical Engineering and Chemistry, Eindhoven University of Technology, P.O. Box 513, 5600 MB Eindhoven, The Netherlands
| | - A. Heise
- School
of Chemical Sciences, Dublin City University, Glasnevin, Dublin 9, Ireland
- Department
of Chemical Engineering and Chemistry, Eindhoven University of Technology, P.O. Box 513, 5600 MB Eindhoven, The Netherlands
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74
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Song Z, Kwok RTK, Zhao E, He Z, Hong Y, Lam JWY, Liu B, Tang BZ. A ratiometric fluorescent probe based on ESIPT and AIE processes for alkaline phosphatase activity assay and visualization in living cells. ACS APPLIED MATERIALS & INTERFACES 2014; 6:17245-54. [PMID: 25208827 DOI: 10.1021/am505150d] [Citation(s) in RCA: 211] [Impact Index Per Article: 21.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/08/2023]
Abstract
Alkaline phosphatase (ALP) activity is regarded as an important biomarker in medical diagnosis. A ratiometric fluorescent probe is developed based on a phosphorylated chalcone derivative for ALP activity assay and visualization in living cells. The probe is soluble in water and emits greenish-yellow in aqueous buffers. In the presence of ALP, the emission of probe changes to deep red gradually with ratiometric fluorescent response due to formation and aggregation of enzymatic product, whose fluorescence involves both excited-state intramolecular proton transfer and aggregation-induced emission processes. The linear ratiometric fluorescent response enables in vitro quantification of ALP activity in a range of 0-150 mU/mL with a detection limit of 0.15 mU/mL. The probe also shows excellent biocompatibility, which enables it to apply in ALP mapping in living cells.
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Affiliation(s)
- Zhegang Song
- HKUST Shenzhen Research Institute , No. 9 Yuexing First RD, South Area, Hi-Tech Park, Nanshan, Shenzhen, China 518057
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75
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Gedi V, Kim YP. Detection and characterization of cancer cells and pathogenic bacteria using aptamer-based nano-conjugates. SENSORS (BASEL, SWITZERLAND) 2014; 14:18302-27. [PMID: 25268922 PMCID: PMC4239906 DOI: 10.3390/s141018302] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/17/2014] [Revised: 08/08/2014] [Accepted: 09/02/2014] [Indexed: 12/30/2022]
Abstract
Detection and characterization of cells using aptamers and aptamer-conjugated nanoprobes has evolved a great deal over the past few decades. This evolution has been driven by the easy selection of aptamers via in vitro cell-SELEX, permitting sensitive discrimination between target and normal cells, which includes pathogenic prokaryotic and cancerous eukaryotic cells. Additionally, when the aptamer-based strategies are used in conjunction with nanomaterials, there is the potential for cell targeting and therapeutic effects with improved specificity and sensitivity. Here we review recent advances in aptamer-based nano-conjugates and their applications for detecting cancer cells and pathogenic bacteria. The multidisciplinary research utilized in this field will play an increasingly significant role in clinical medicine and drug discovery.
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Affiliation(s)
- Vinayakumar Gedi
- Department of Life Science, Hanyang University, Seoul 133-791, Korea.
| | - Young-Pil Kim
- Department of Life Science, Hanyang University, Seoul 133-791, Korea.
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76
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Tan Y, Guo Q, Xie Q, Wang K, Yuan B, Zhou Y, Liu J, Huang J, He X, Yang X, He C, Zhao X. Single-walled carbon nanotubes (SWCNTs)-assisted cell-systematic evolution of ligands by exponential enrichment (cell-SELEX) for improving screening efficiency. Anal Chem 2014; 86:9466-72. [PMID: 25184732 DOI: 10.1021/ac502166b] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
Separating the specific from the nonspecific bound single-strand DNA (ssDNA) is the most important step to improve the efficiency of selection procedure. However, most cell-SELEX protocols (where SELEX = systematic evolution of ligands by exponential enrichment) use simply washing only, which leads to incomplete separation. It is well-established that ssDNAs can be adsorbed on single-walled carbon nanotubes (SWCNTs). Based on this, herein, we developed a modified cell-SELEX approach termed "SWCNTs-assisted cell-SELEX". In our approach, SWCNTs are applied in the separation step, during which the unbound or the nonspecific ssDNAs are adsorbed onto SWCNTs, while the bound ssDNAs still remain on the cell surface, because of the stronger interaction between ssDNA and target. The cells can then be centrifuged to enrich the specifically binding aptamers. As a proof of concept, two nasopharyngeal carcinoma (NPC) cell lines-CNE2 cell and HONE cell-were used as the target cell and the negative cell, respectively. The result show that it takes only 6 cycles to enrich the aptamer pool through the SWCNTs-assisted cell-SELEX, which is much shorter than 15 cycles in the conventional cell-SELEX, thus improving the screening efficiency. Moreover, the achieved aptamers show high specificity and affinity with CNE2 cells, which are highly attractive for clinical diagnosis and biomedicine applications.
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Affiliation(s)
- Yuyu Tan
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Biology, College of Chemistry and Chemical Engineering, and Key Laboratory for Bio-Nanotechnology and Molecule Engineering of Hunan Province, Hunan University , Changsha 410082, China
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77
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Ozgur E, Toren P, Bayindir M. Phosphonate based organosilane modification of a simultaneously protein resistant and bioconjugable silica surface. J Mater Chem B 2014; 2:7118-7122. [DOI: 10.1039/c4tb01283f] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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78
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Yan L, Shi H, He X, Wang K, Tang J, Chen M, Ye X, Xu F, Lei Y. A versatile activatable fluorescence probing platform for cancer cells in vitro and in vivo based on self-assembled aptamer/carbon nanotube ensembles. Anal Chem 2014; 86:9271-7. [PMID: 25153687 DOI: 10.1021/ac5024149] [Citation(s) in RCA: 60] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Activatable aptamer probes (AAPs) have emerged as a promising strategy in cancer diagnostics, but existing AAPs remain problematic due to complex design and synthesis, instability in biofluids, or lack of versatility for both in vitro and in vivo applications. Herein, we proposed a novel AAP strategy for cancer cell probing based on fluorophore-labeled aptamer/single-walled carbon nanotube (F-apt/SWNT) ensembles. Through π-stacking interactions and proximity-induced energy transfer, F-apt/SWNT with quenched fluorescence spontaneously formed in its free state and realized signal activation upon targeting surface receptors of living cells. As a demonstration, Sgc8c aptamer was used for in vitro analysis and in vivo imaging of CCRF-CEM cancer cells. It was found that self-assembled Cy5-Sgc8c/SWNT held robust stability for biological applications, including good dispersity in different media and ultralow fluorescence background persistent for 2 h in serum. Flow cytometry assays revealed that Cy5-Sgc8c/SWNT was specifically activated by target cells with dramatic fluorescence elevation and showed improved sensitivity with as low as 12 CCRF-CEM cells detected in mixed samples containing ~100,000 nontarget cells. In vivo studies confirmed that specifically activated fluorescence was imaged in CCRF-CEM tumors, and compared to "always on" probes, Cy5-Sgc8c/SWNT greatly reduced background signals, thus resulting in contrast-enhanced imaging. The general applicability of the strategy was also testified by detecting Ramos cells with aptamer TD05. It was implied that F-apt/SWNT ensembles hold great potential as a simple, stable, sensitive, specific, and versatile activatable platform for both in vitro cancer cell detection and in vivo cancer imaging.
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Affiliation(s)
- Lv'an Yan
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, College of Biology, Hunan University , Key Laboratory for Bio-Nanotechnology and Molecular Engineering of Hunan Province, Changsha 410082, China
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79
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Hu C, Yue W, Yang M. Nanoparticle-based signal generation and amplification in microfluidic devices for bioanalysis. Analyst 2014; 138:6709-20. [PMID: 24067742 DOI: 10.1039/c3an01321a] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
Signal generation and amplification based on nanomaterials and microfluidic techniques have both attracted considerable attention separately due to the demands for ultrasensitive and high-throughput detection of biomolecules. This article reviews the latest development of signal amplification strategies based on nanoparticles for bioanalysis and their integration and applications in microfluidic systems. The applications of nanoparticles in bioanalysis were categorized based on the different approaches of signal amplification, and the microfluidic techniques were summarized based on cell analysis and biomolecule detection with a focus on the integration of nanoparticle-based amplification in microfluidic devices for ultrasensitive bioanalysis. The advantages and limitations of the combination of nanoparticles-based amplification with microfluidic techniques were evaluated, and the possible developments for future research were discussed.
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Affiliation(s)
- Chong Hu
- Department of Biology and Chemistry, City University of Hong Kong, 83 Tat Chee Avenue, Kowloon, Hong Kong SAR, People's Republic of China.
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80
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Zhou G, Lin M, Song P, Chen X, Chao J, Wang L, Huang Q, Huang W, Fan C, Zuo X. Multivalent capture and detection of cancer cells with DNA nanostructured biosensors and multibranched hybridization chain reaction amplification. Anal Chem 2014; 86:7843-8. [PMID: 24989246 DOI: 10.1021/ac502276w] [Citation(s) in RCA: 121] [Impact Index Per Article: 12.1] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Sensitive detection of cancer cells plays a critically important role in the early detection of cancer and cancer metastasis. However, because circulating tumor cells are extremely rare in peripheral blood, the detection of cancer cells with high analytical sensitivity and specificity remains challenging. Here, we have demonstrated a simple, sensitive and specific detection of cancer cells with the detection sensitivity of four cancer cells, which is lower than the cutoff value with respect to correlation with survival outcomes as well as predictive of metastatic disease in clinical diagnostics. We re-engineered the hybridization chain reaction (HCR) to multibranched HCR (mHCR) that can produce long products with multiple biotins for signal amplification and multiple branched arms for multivalent binding. The capturing gold surface is modified with DNA tetrahedral probes, which provide superior hybridization conditions for the multivalent binding. The synergetic effect of mHCR amplification and multivalent binding lead to the high sensitivity of our detection platform.
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Affiliation(s)
- Guobao Zhou
- Division of Physical Biology & Bioimaging Center, Shanghai Synchrotron Radiation Facility, Shanghai Institute of Applied Physics, Chinese Academy of Sciences , Shanghai, China 201800
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81
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Wang K, Liao J, Yang X, Zhao M, Chen M, Yao W, Tan W, Lan X. A label-free aptasensor for highly sensitive detection of ATP and thrombin based on metal-enhanced PicoGreen fluorescence. Biosens Bioelectron 2014; 63:172-177. [PMID: 25086329 DOI: 10.1016/j.bios.2014.07.022] [Citation(s) in RCA: 75] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2014] [Revised: 06/27/2014] [Accepted: 07/08/2014] [Indexed: 11/29/2022]
Abstract
A label-free fluorescence aptasensor for highly selective and sensitive detection of ATP and thrombin was developed by using PicoGreen (PG) as signal molecule and surface-bound metal-enhanced fluorescence (MEF) substrates (silver island films, SIFs) as signal enhancers. On binding with ATP or thrombin, aptamers undergo structure switching, leading to a reduction of fluorescence intensity of PG. Chang of fluorescence intensity can be magnified by SIFs. The limit of detection for ATP and thrombin is 1.3 nM and 0.073 nM, respectively. The fluorescence quenching efficiency is linear in the logarithmic scale with ATP concentration range from 10 nM to 100 μM (R(2)=0.995) and thrombin concentration range from 0.1 nM to 100 nM (R(2)=0.997). The coefficients of variation of the intra-assay reproducibility and inter-assay reproducibility for ATP (10 μM) assay are 3.8% and 5.2%, respectively. In addition, the aptasensor is stable and can be reliably used for ATP measurement in biological samples. Overall, the aptasensor can be a useful and cost effective tool for the specific detection of ATP, thrombin and potentially other biomolecules in biological samples.
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Affiliation(s)
- Kaiyu Wang
- Institute of Laboratory Medicine, Fuzhou General Hospital of Nanjing Military Command, Fuzhou 350025, PR China; Department of Laboratory Medicine, Dongfang Hospital, Xiamen University, Fuzhou 350025, PR China; Department of Laboratory Medicine, Fuzong Clinical College, Fujian Medical University, Fuzhou 350025, PR China
| | - Jian Liao
- Institute of Laboratory Medicine, Fuzhou General Hospital of Nanjing Military Command, Fuzhou 350025, PR China; Department of Laboratory Medicine, Dongfang Hospital, Xiamen University, Fuzhou 350025, PR China
| | - Xiangyue Yang
- Institute of Laboratory Medicine, Fuzhou General Hospital of Nanjing Military Command, Fuzhou 350025, PR China; Department of Laboratory Medicine, Dongfang Hospital, Xiamen University, Fuzhou 350025, PR China
| | - Meng Zhao
- Institute of Laboratory Medicine, Fuzhou General Hospital of Nanjing Military Command, Fuzhou 350025, PR China; Department of Laboratory Medicine, Dongfang Hospital, Xiamen University, Fuzhou 350025, PR China
| | - Min Chen
- Institute of Laboratory Medicine, Fuzhou General Hospital of Nanjing Military Command, Fuzhou 350025, PR China; Department of Laboratory Medicine, Dongfang Hospital, Xiamen University, Fuzhou 350025, PR China
| | - Weirong Yao
- Department of Laboratory Medicine, Fuzong Clinical College, Fujian Medical University, Fuzhou 350025, PR China
| | - Weihong Tan
- Center for Research at the Bio/Nano Interface, Department of Chemistry and Shands Cancer Center, University of Florida, Gainesville, Florida 32611, United States; Plant Pathology Lab, North Florida Research and Education Center, University of Florida, Quincy, Florida 32351, United States; Molecular Science and Biomedicine Laboratory, State Key Laboratory of Chemo/Bio-Sensing and Chemometrics, College of Chemistry and Chemical Engineering, College of Biology, Collaborative Innovation Center for Chemistry and Molecular Medicine, Hunan University, Changsha 410082, PR China.
| | - Xiaopeng Lan
- Institute of Laboratory Medicine, Fuzhou General Hospital of Nanjing Military Command, Fuzhou 350025, PR China; Department of Laboratory Medicine, Dongfang Hospital, Xiamen University, Fuzhou 350025, PR China; Department of Laboratory Medicine, Fuzong Clinical College, Fujian Medical University, Fuzhou 350025, PR China.
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82
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Xiong X, Lv Y, Chen T, Zhang X, Wang K, Tan W. Nucleic acid aptamers for living cell analysis. ANNUAL REVIEW OF ANALYTICAL CHEMISTRY (PALO ALTO, CALIF.) 2014; 7:405-426. [PMID: 24896309 DOI: 10.1146/annurev-anchem-071213-015944] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
Cells as the building blocks of life determine the basic functions and properties of a living organism. Understanding the structure and components of a cell aids in the elucidation of its biological functions. Moreover, knowledge of the similarities and differences between diseased and healthy cells is essential to understanding pathological mechanisms, identifying diagnostic markers, and designing therapeutic molecules. However, monitoring the structures and activities of a living cell remains a challenging task in bioanalytical and life science research. To meet the requirements of this task, aptamers, as "chemical antibodies," have become increasingly powerful tools for cellular analysis. This article reviews recent advances in the development of nucleic acid aptamers in the areas of cell membrane analysis, cell detection and isolation, real-time monitoring of cell secretion, and intracellular delivery and analysis with living cell models. Limitations of aptamers and possible solutions are also discussed.
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Affiliation(s)
- Xiangling Xiong
- Molecular Science and Biomedicine Laboratory, State Key Laboratory of Chemo/Bio-Sensing and Chemometrics, College of Chemistry and Chemical Engineering, College of Biology, Collaborative Innovation Center for Molecular Engineering and Theranostics, Hunan University, Changsha 410082, China
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83
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Li Y, Chen T, Tan W, Talham DR. Size-dependent MRI relaxivity and dual imaging with Eu0.2Gd0.8PO4·H2O nanoparticles. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2014; 30:5873-5879. [PMID: 24825171 PMCID: PMC4039354 DOI: 10.1021/la500602x] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/14/2014] [Revised: 04/25/2014] [Indexed: 06/03/2023]
Abstract
Three different sizes of Eu0.2Gd0.8PO4·H2O nanoparticles have been prepared to investigate the particle size influence on water proton relaxivity. Longitudinal relaxivity (r1) values increase for smaller particles, reaching as high as r1 = 6.13 mM(-1) s(-1) for a sample of 40 ± 4 nm particles, which, with a ratio of transverse/longitudinal relaxivity, r2/r1 = 1.27, are shown to be effective positive contrast agents. The correlation between relaxivity and the surface-to-volume ratio implies that access to surface Gd(3+) sites is the principal factor affecting relaxivity. On the other hand, although ionic molar relaxivity decreases for larger particles, the relaxivity per particle can be significantly greater. Gadolinium-based nanoparticles doped with fluorescent lanthanide elements have attracted attention for their dual-imaging abilities, combining magnetic resonance imaging (MRI) and fluorescence imaging agents. In both in vitro experiments with HeLa cells and in vivo experiments with C. elegans, strong red fluorescence is observed from Eu0.2Gd0.8PO4·H2O with high resolution, demonstrating the parallel use of the particles as fluorescence imaging agents.
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84
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Zhang X, Xiao K, Cheng L, Chen H, Liu B, Zhang S, Kong J. Visual and highly sensitive detection of cancer cells by a colorimetric aptasensor based on cell-triggered cyclic enzymatic signal amplification. Anal Chem 2014; 86:5567-72. [PMID: 24819867 DOI: 10.1021/ac501068k] [Citation(s) in RCA: 81] [Impact Index Per Article: 8.1] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Rapid and efficient detection of cancer cells at their earliest stages is one of the central challenges in cancer diagnostics. We developed a simple, cost-effective, and highly sensitive colorimetric method for visually detecting rare cancer cells based on cell-triggered cyclic enzymatic signal amplification (CTCESA). In the absence of target cells, hairpin aptamer probes (HAPs) and linker DNAs stably coexist in solution, and the linker DNA assembles DNA-AuNPs, producing a purple solution. In the presence of target cells, the specific binding of HAPs to the target cells triggers a conformational switch that results in linker DNA hybridization and cleavage by nicking endonuclease-strand scission cycles. Consequently, the cleaved fragments of linker DNA can no longer assemble into DNA-AuNPs, resulting in a red color. UV-vis spectrometry and photograph analyses demonstrated that this CTCESA-based method exhibited selective and sensitive colorimetric responses to the presence of target CCRF-CEM cells, which could be detected by the naked eye. The linear response for CCRF-CEM cells in a concentration range from 10(2) to 10(4) cells was obtained with a detection limit of 40 cells, which is approximately 20 times lower than the detection limit of normal AuNP-based methods without amplification. Given the high specificity and sensitivity of CTCESA, this colorimetric method provides a sensitive, label-free, and cost-effective approach for early cancer diagnosis and point-to-care applications.
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Affiliation(s)
- Xianxia Zhang
- Department of Chemistry, Fudan University , Shanghai 200433, P. R. China
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85
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Taghdisi SM, Emrani SS, Tabrizian K, Ramezani M, Abnous K, Emrani AS. Ultrasensitive detection of lead (II) based on fluorescent aptamer-functionalized carbon nanotubes. ENVIRONMENTAL TOXICOLOGY AND PHARMACOLOGY 2014; 37:1236-1242. [PMID: 24835552 DOI: 10.1016/j.etap.2014.04.020] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/09/2014] [Revised: 04/13/2014] [Accepted: 04/18/2014] [Indexed: 06/03/2023]
Abstract
Lead contamination is a serious environmental problem with toxic effects in human. Here, we developed a simple and sensitive sensing method employing ATTO 647N/aptamer-SWNT ensemble for detection of Pb(2+). This method is based on the super quenching capability of single-walled carbon nanotubes (SWNTs), high affinity of the aptamer toward Pb(2+) and different propensities of ATTO 647N-aptamer and ATTO 647N-aptamer/Pb(2+) complex for adsorption on SWNTs. In the absence of Pb(2+), the fluorescence of ATTO 647N-aptamer is efficiently quenched by SWNTs. Upon addition of Pb(2+), the aptamer binds to its target, leading to the formation of a G-quadruplex/Pb(2+) complex and does not interact with SWNTs and ATTO 647N-aptamer starts fluorescing. This sensor exhibited a high selectivity toward Pb(2+) and a limit of detection (LOD) as low as 0.42 nM was obtained. Also this sensor could be applied for detection of Pb(2+) ions in tap water and biological sample like serum with high sensitivity.
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Affiliation(s)
- Seyed Mohammad Taghdisi
- Department of Pharmaceutical Biotechnology, School of Pharmacy, Mashhad University of Medical Sciences, Mashhad, Iran
| | | | - Kaveh Tabrizian
- Department of Toxicology, School of Pharmacy, Zabol University of Medical Sciences, Zabol, Iran
| | - Mohammad Ramezani
- Nanotechnology Research Center, School of Pharmacy, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Khalil Abnous
- Pharmaceutical Research Center, School of Pharmacy, Mashhad University of Medical Sciences, Mashhad, Iran.
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86
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Xie M, Lu NN, Cheng SB, Wang XY, Wang M, Guo S, Wen CY, Hu J, Pang DW, Huang WH. Engineered Decomposable Multifunctional Nanobioprobes for Capture and Release of Rare Cancer Cells. Anal Chem 2014; 86:4618-26. [DOI: 10.1021/ac500820p] [Citation(s) in RCA: 51] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Affiliation(s)
- Min Xie
- Key
Laboratory of Analytical Chemistry for Biology and Medicine (Ministry
of Education), College of Chemistry and Molecular Sciences, Wuhan University, Wuhan 430072, China
| | - Ning-Ning Lu
- Key
Laboratory of Analytical Chemistry for Biology and Medicine (Ministry
of Education), College of Chemistry and Molecular Sciences, Wuhan University, Wuhan 430072, China
| | - Shi-Bo Cheng
- Key
Laboratory of Analytical Chemistry for Biology and Medicine (Ministry
of Education), College of Chemistry and Molecular Sciences, Wuhan University, Wuhan 430072, China
| | - Xue-Ying Wang
- Key
Laboratory of Analytical Chemistry for Biology and Medicine (Ministry
of Education), College of Chemistry and Molecular Sciences, Wuhan University, Wuhan 430072, China
| | - Ming Wang
- Renmin Hospital of Wuhan University, Wuhan 430060, China
| | - Shan Guo
- Key
Laboratory of Analytical Chemistry for Biology and Medicine (Ministry
of Education), College of Chemistry and Molecular Sciences, Wuhan University, Wuhan 430072, China
| | - Cong-Ying Wen
- Key
Laboratory of Analytical Chemistry for Biology and Medicine (Ministry
of Education), College of Chemistry and Molecular Sciences, Wuhan University, Wuhan 430072, China
| | - Jiao Hu
- Key
Laboratory of Analytical Chemistry for Biology and Medicine (Ministry
of Education), College of Chemistry and Molecular Sciences, Wuhan University, Wuhan 430072, China
| | - Dai-Wen Pang
- Key
Laboratory of Analytical Chemistry for Biology and Medicine (Ministry
of Education), College of Chemistry and Molecular Sciences, Wuhan University, Wuhan 430072, China
| | - Wei-Hua Huang
- Key
Laboratory of Analytical Chemistry for Biology and Medicine (Ministry
of Education), College of Chemistry and Molecular Sciences, Wuhan University, Wuhan 430072, China
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87
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Chen X, Wang Y, Zhang Y, Chen Z, Liu Y, Li Z, Li J. Sensitive electrochemical aptamer biosensor for dynamic cell surface N-glycan evaluation featuring multivalent recognition and signal amplification on a dendrimer-graphene electrode interface. Anal Chem 2014; 86:4278-86. [PMID: 24684138 DOI: 10.1021/ac404070m] [Citation(s) in RCA: 118] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
We demonstrate a multivalent recognition and highly selective aptamer signal amplification strategy for electrochemical cytosensing and dynamic cell surface N-glycan expression evaluation by the combination of concanavalin A (Con A), a mannose binding protein, as a model, conjugated poly(amidoamine) dendrimer on a chemically reduced graphene oxide (rGO-DEN) interface, and aptamer- and horseradish peroxidase-modified gold nanoparticles (HRP-aptamer-AuNPs) as nanoprobes. In this strategy, the rGO-DEN can not only enhance the electron transfer ability but also provide a multivalent recognition interface for the conjugation of Con A that avoids the weak carbohydrate-protein interaction and dramatically improves the cell capture efficiency and the sensitivity of the biosensor for cell surface glycan. The high-affinity aptamer- and HRP-modified gold nanoparticles provide an ultrasensitive electrochemical probe with excellent specificity. As proof-of-concept, the detection of CCRF-CEM cell (human acute lymphoblastic leukemia) and its surface N-glycan was developed. It has demonstrated that the as-designed biosensor can be used for highly sensitive and selective cell detection and dynamic evaluation of cell surface N-glycan expression. A detection limit as low as 10 cells mL(-1) was obtained with excellent selectivity. Moreover, this strategy was also successfully applied for N-glycan expression inhibitor screening. These results imply that this biosensor has potential in clinical diagnostic and drug screening applications and endows a feasibility tool for insight into the N-glycan function in biological processes and related diseases.
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Affiliation(s)
- Xiaojiao Chen
- Key Laboratory of Chemical Biology and Traditional Chinese Medicine Research (Ministry of Education), College of Chemistry and Chemical Engineering, Hunan Normal University , Changsha 410081, China
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88
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Fan Y, Zhao J, Yan Q, Chen PR, Zhao D. Water-soluble triscyclometalated organoiridium complex: phosphorescent nanoparticle formation, nonlinear optics, and application for cell imaging. ACS APPLIED MATERIALS & INTERFACES 2014; 6:3122-3131. [PMID: 24517374 DOI: 10.1021/am500549y] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
Two water-soluble triscyclometalated organoiridium complexes, 1 and 2, with polar side chains that form nanoparticles emitting bright-red phosphorescence in water were synthesized. The optimal emitting properties are related to both the triscyclometalated structure and nanoparticle-forming ability in aqueous solution. Nonlinear optical properties are also observed with the nanoparticles. Because of their proper cellular uptake in addition to high emission brightness and effective two-photon absorbing ability, cell imaging can be achieved with nanoparticles of 2 bearing quaternary ammonium side chains at ultra-low effective concentrations using NIR incident light via the multiphoton excitation phosphorescence process.
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Affiliation(s)
- Yuanpeng Fan
- Beijing National Laboratory for Molecular Sciences, Department of Applied Chemistry and the Key Laboratory of Polymer Chemistry and Physics of the Ministry of Education, College of Chemistry, Peking University , Beijing 100871, China
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89
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Jie G, Zhao Y, Qin Y. A fluorescent polymeric quantum dot/aptamer superstructure and its application for imaging of cancer cells. Chem Asian J 2014; 9:1261-4. [PMID: 24616365 DOI: 10.1002/asia.201301676] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2013] [Indexed: 12/27/2022]
Abstract
In this work, a novel polymeric quantum dot/aptamer superstructure with a highly intense fluorescence was fabricated by a molecular engineering strategy and successfully applied to fluorescence imaging of cancer cells. The polymeric superstructure, which is composed of both multiple cell-based aptamers and a high ratio of quantum dot (QD)-labeled DNA, exploits the target recognition capability of the aptamer, an enhanced cell internalization through multivalent effects, and cellular disruption by the polymeric conjugate. Importantly, the polymeric superstructure exhibits an increasingly enhanced fluorescence with recording time and is thus suitable for long-term fluorescent cellular imaging. The unique and excellent fluorescence property of the QD superstructure paves the way for developing polymeric QD superstructures that hold promise for applications such as in vivo imaging.
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Affiliation(s)
- Guifen Jie
- Key Laboratory of Biochemical Analysis, Ministry of Education, College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology, Qingdao 266042 (China), Fax: (+86) 532-84022750.
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90
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Wu X, Wu M, Zhao JX. Recent development of silica nanoparticles as delivery vectors for cancer imaging and therapy. NANOMEDICINE : NANOTECHNOLOGY, BIOLOGY, AND MEDICINE 2014; 10:297-312. [PMID: 24028896 PMCID: PMC3946271 DOI: 10.1016/j.nano.2013.08.008] [Citation(s) in RCA: 93] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/06/2013] [Revised: 08/06/2013] [Accepted: 08/22/2013] [Indexed: 12/19/2022]
Abstract
In spite of significant advances in early detection and combined treatments, a number of cancers are often diagnosed at advanced stages and thereby carry a poor prognosis. Developing novel prognostic biomarkers and targeted therapies may offer alternatives for cancer diagnosis and treatment. Recent rapid development of nanomaterials, such as silica based nanoparticles (SiNPs), can just render such a promise. In this article, we attempt to summarize the recent progress of SiNPs in tumor research as a novel delivery vector. SiNP-assisted imaging techniques are used in cancer diagnosis both in vitro and in vivo. Meanwhile, SiNP-mediated drug delivery can efficiently treat tumor by carrying chemotherapeutic agents, photosensitizers, photothermal agents, siRNA, and gene therapeutic agents. Finally, SiNPs that contain at least two different functional agents may be more powerful for both tumor imaging and therapy. FROM THE CLINICAL EDITOR This paper summarizes recent progress on the field of silica nanoparticles research as novel delivery vectors for cancer-specific imaging as well as drug delivery of chemotherapeutics, photosensitizers, photothermal agents, siRNA, and gene therapy agents.
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Affiliation(s)
- Xu Wu
- Department of Chemistry, School of Arts and Sciences, University of North Dakota, Grand Forks, ND, USA
| | - Min Wu
- Department of Biochemistry and Molecular Biology, School of Medicine and Health Sciences, University of North Dakota, Grand Forks, ND, USA.
| | - Julia Xiaojun Zhao
- Department of Chemistry, School of Arts and Sciences, University of North Dakota, Grand Forks, ND, USA.
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91
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Li H, Wang M, Qiang W, Hu H, Li W, Xu D. Metal-enhanced fluorescent detection for protein microarrays based on a silver plasmonic substrate. Analyst 2014; 139:1653-60. [DOI: 10.1039/c3an01875j] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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92
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Yen SK, Padmanabhan P, Selvan ST. Multifunctional iron oxide nanoparticles for diagnostics, therapy and macromolecule delivery. Theranostics 2013; 3:986-1003. [PMID: 24396508 PMCID: PMC3881099 DOI: 10.7150/thno.4827] [Citation(s) in RCA: 107] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2012] [Accepted: 12/18/2012] [Indexed: 12/20/2022] Open
Abstract
In recent years, multifunctional nanoparticles (NPs) consisting of either metal (e.g. Au), or magnetic NP (e.g. iron oxide) with other fluorescent components such as quantum dots (QDs) or organic dyes have been emerging as versatile candidate systems for cancer diagnosis, therapy, and macromolecule delivery such as micro ribonucleic acid (microRNA). This review intends to highlight the recent advances in the synthesis and application of multifunctional NPs (mainly iron oxide) in theranostics, an area used to combine therapeutics and diagnostics. The recent applications of NPs in miRNA delivery are also reviewed.
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93
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Yin J, He X, Wang K, Xu F, Shangguan J, He D, Shi H. Label-free and turn-on aptamer strategy for cancer cells detection based on a DNA-silver nanocluster fluorescence upon recognition-induced hybridization. Anal Chem 2013; 85:12011-9. [PMID: 24266455 DOI: 10.1021/ac402989u] [Citation(s) in RCA: 161] [Impact Index Per Article: 14.6] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
We present here a label-free and turn-on aptamer strategy for cancer cell detection based on the recognition-induced conformation alteration of aptamer and hybridization-induced fluorescence enhancement effect of DNA-silver nanoclusters (DNA-Ag NCs) in proximity of guanine-rich DNA sequences. In this strategy, two tailored DNA probes were involved. One is designed as a hairpin-shaped structure consisting of a target specific aptamer sequence at the 3'-end, a guanine-rich DNA sequence, and an arm segment at the 5'-end (denote as recognition probe). The other, serving as a signal probe, contains a sequence for Ag NCs templated synthesis and a link sequence complementary to the arm segment of the recognition probe. Recognizing and binding of the aptamer to cancer cells enforces the recognition probe to undergo a conformational alteration and then initiates hybridization between the arm segment of the recognition probe and the link sequence of the signal probe. The Ag NCs are then close to the guanine-rich DNA, leading to an enhanced fluorescence readout. As proof-of-concept, the CCRF-CEM cancer cell detection were performed by using the specific aptamer, sgc8c. It was demonstrated that this strategy could specially image the CCRF-CEM cells. Determination by flow cytometry allowed for detection of as low as 150 CCRF-CEM cells in 200 μL binding buffer. The general applicability of the strategy is also achieved in the successful detection of Ramos cells. These results implied that this strategy holds considerable potential for simple, sensitive, universal, and specific cancer cell detection with no required washing and separation steps.
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Affiliation(s)
- Jinjin Yin
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Biology, College of Chemistry and Chemical Engineering, Hunan University , Key Laboratory for Bio-Nanotechnology and Molecule Engineering of Hunan Province, Changsha, China 410082
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94
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Aptamer cocktails: enhancement of sensing signals compared to single use of aptamers for detection of bacteria. Biosens Bioelectron 2013; 54:195-8. [PMID: 24280049 DOI: 10.1016/j.bios.2013.11.003] [Citation(s) in RCA: 51] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2013] [Revised: 10/16/2013] [Accepted: 11/02/2013] [Indexed: 12/30/2022]
Abstract
Microbial cells have many binding moieties on their surface for binding to their specific bioreceptors. The whole-cell SELEX process enables the isolation of various aptamers that can bind to different components on the cell surface such as proteins, polysaccharides, or flagella with high affinity and specificity. Here, we examine the binding capacity of an aptamer mixture (aptamer cocktail) composed of various combinations of 3 different DNA aptamers isolated from Escherichia coli and compare it with one of the single aptamers using fluorescence-tagged aptamers. The aptamer mixtures showed higher fluorescence signal than did any single aptamer used, which suggests that use of aptamer mixtures can enhance the sensitivity of detection of microbial cells. To further evaluate this effect, the signal enhancement and improvement of sensitivity provided by combinatorial use of aptamers were examined in an electrochemical detection system. With regard to current decreases, the aptamer cocktail immobilized on gold electrodes performed better than a single aptamer immobilized on gold electrodes did. Consequently, the detection limit achieved using the aptamers individually was approximately 18 times that when the 3 aptamers were used in combination. These results support the use of aptamer cocktails for detection of complex targets such as E. coli with enhanced sensitivity.
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95
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Korzeniowska B, Nooney R, Wencel D, McDonagh C. Silica nanoparticles for cell imaging and intracellular sensing. NANOTECHNOLOGY 2013; 24:442002. [PMID: 24113689 DOI: 10.1088/0957-4484/24/44/442002] [Citation(s) in RCA: 54] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
There is increasing interest in the use of nanoparticles (NPs) for biomedical applications. In particular, nanobiophotonic approaches using fluorescence offers the potential of high sensitivity and selectivity in applications such as cell imaging and intracellular sensing. In this review, we focus primarily on the use of fluorescent silica NPs for these applications and, in so doing, aim to enhance and complement the key recent review articles on these topics. We summarize the main synthetic approaches, namely the Stöber and microemulsion processes, and, in this context, we deal with issues in relation to both covalent and physical incorporation of different types of dyes in the particles. The important issue of NP functionalization for conjugation to biomolecules is discussed and strategies published in the recent literature are highlighted and evaluated. We cite recent examples of the use of fluorescent silica NPs for cell imaging in the areas of cancer, stem cell and infectious disease research, and we review the current literature on the use of silica NPs for intracellular sensing of oxygen, pH and ionic species. We include a short final section which seeks to identify the main challenges and obstacles in relation to the potential widespread use of these particles for in vivo diagnostics and therapeutics.
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Affiliation(s)
- B Korzeniowska
- Optical Sensors Laboratory, School of Physical Sciences, NCSR, Dublin City University, Dublin 9, Ireland
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96
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Helle M, Rampazzo E, Monchanin M, Marchal F, Guillemin F, Bonacchi S, Salis F, Prodi L, Bezdetnaya L. Surface chemistry architecture of silica nanoparticles determine the efficiency of in vivo fluorescence lymph node mapping. ACS NANO 2013; 7:8645-57. [PMID: 24070236 DOI: 10.1021/nn402792a] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/17/2023]
Abstract
Near-infrared (NIR) imaging of the lymphatic system offers a sensitive, versatile, and accurate lymph node mapping to locate the first, potentially metastatic, draining nodes in the operating room. Many luminescent nanoprobes have received great attention in this field, and the design of nontoxic and bright nanosystems is of crucial importance. Fluorescent NIR-emitting dye doped silica nanoparticles represent valuable platforms to fulfill these scopes, providing sufficient brightness, resistance to photobleaching, and hydrophilic nontoxic materials. Here, we synthesized these highly stable core-shell nanoparticles with a programmable surface charge positioning and determined the effect of these physicochemical properties on their in vivo behavior. In addition, we characterized their fluorescence kinetic profile in the right axillary lymph node (RALN) mapping. We found that nanoparticles with negative charges hidden by a PEG shell are more appropriate than those with external negative charges in the mapping of lymph nodes. We also demonstrated the efficient excretion of these nanostructures by the hepatobiliary route and their nontoxicity in mice up to 3 months postinjection. These results indicate the potential future development of these fluorescent nanosystems for LN mapping.
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Affiliation(s)
- Marion Helle
- Centre de Recherche en Automatique de Nancy (CRAN), Université de Lorraine , UMR 7039, Campus Sciences, BP 70239, 54506 Vandoeuvre-lès-Nancy Cedex, France
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97
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Rapid and sensitive lateral flow immunoassay for influenza antigen using fluorescently-doped silica nanoparticles. Mikrochim Acta 2013. [DOI: 10.1007/s00604-013-1106-4] [Citation(s) in RCA: 52] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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98
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Marangoni VS, Paino IM, Zucolotto V. Synthesis and characterization of jacalin-gold nanoparticles conjugates as specific markers for cancer cells. Colloids Surf B Biointerfaces 2013; 112:380-6. [PMID: 24028851 DOI: 10.1016/j.colsurfb.2013.07.070] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2013] [Revised: 07/04/2013] [Accepted: 07/16/2013] [Indexed: 11/17/2022]
Abstract
New nanobiocomposites that combine nanoparticles and biomolecules have been shown very relevant for medical applications. Recently, cancer diagnostics and treatment have benefited from the development of nanobiocomposites, in which metallic or magnetic nanoparticles are conjugated with specific biomolecules for selective cell uptake. Despite recent advances in this area, the biomedical applications of these materials are still limited by the low efficiency of functionalization, low stability, among other factors. In this study, we report the synthesis of jacalin-conjugated gold nanoparticles, a nanoconjugate with potential application in medical areas, especially for cancer diagnosis. Jacalin is a lectin protein and it was employed due to its ability to recognize the Galβ1-3GalNAc disaccharide, which is highly expressed in tumor cells. Gold nanoparticles (AuNPs) were synthesized in the presence of generation 4 polyamidoamine dendrimer (PAMAM G4) and conjugated with fluorescein isothiocyanate (FITC)-labeled jacalin. The AuNPs/jacalin nanoconjugates were characterized by transmission electron microscopy (TEM), dynamic light scattering (DLS) and vibrational spectroscopy (FTIR). We also performed an investigation using isothermal titration calorimetry (ITC) and fluorescence quenching measurements to understand the interactions occurring between the AuNPs and jacalin, which revealed that the nanoconjugate formation is driven by an entropic process with good affinity. Furthermore, in vitro tests revealed that the AuNPs/jacalin-FITC nanoconjugates exhibited higher affinity for leukemic K562 cells than for healthy mononuclear blood cells, which could be useful for biomedical applications, including cancer cells imaging.
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Affiliation(s)
- Valeria S Marangoni
- Physics Institute of São Carlos, University of São Paulo, São Carlos, BR-13560970, Brazil
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99
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Bryce NS, Pham BTT, Fong NWS, Jain N, Pan EH, Whan RM, Hambley TW, Hawkett BS. The composition and end-group functionality of sterically stabilized nanoparticles enhances the effectiveness of co-administered cytotoxins. Biomater Sci 2013; 1:1260-1272. [DOI: 10.1039/c3bm60120j] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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100
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Chen T, Hu Y, Cen Y, Chu X, Lu Y. A Dual-Emission Fluorescent Nanocomplex of Gold-Cluster-Decorated Silica Particles for Live Cell Imaging of Highly Reactive Oxygen Species. J Am Chem Soc 2013; 135:11595-602. [DOI: 10.1021/ja4035939] [Citation(s) in RCA: 256] [Impact Index Per Article: 23.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Tingting Chen
- State Key Laboratory
of Chemo/Bio-Sensing and Chemometrics, College of Chemistry and Chemical
Engineering, Hunan University, Changsha,
410082, PR China
| | - Yihui Hu
- State Key Laboratory
of Chemo/Bio-Sensing and Chemometrics, College of Chemistry and Chemical
Engineering, Hunan University, Changsha,
410082, PR China
| | - Yao Cen
- State Key Laboratory
of Chemo/Bio-Sensing and Chemometrics, College of Chemistry and Chemical
Engineering, Hunan University, Changsha,
410082, PR China
| | - Xia Chu
- State Key Laboratory
of Chemo/Bio-Sensing and Chemometrics, College of Chemistry and Chemical
Engineering, Hunan University, Changsha,
410082, PR China
| | - Yi Lu
- Department
of Chemistry, University of Illinois at Urbana−Champaign, Urbana, Illinois 61801, United States
| |
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