1
|
Jin Z, Dridi N, Palui G, Palomo V, Jokerst JV, Dawson PE, Amy Sang QX, Mattoussi H. Evaluating the Catalytic Efficiency of the Human Membrane-type 1 Matrix Metalloproteinase (MMP-14) Using AuNP-Peptide Conjugates. J Am Chem Soc 2023; 145:4570-4582. [PMID: 36802544 DOI: 10.1021/jacs.2c12032] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/22/2023]
Abstract
Interactions of plasmonic nanocolloids such as gold nanoparticles and nanorods with proximal dye emitters result in efficient quenching of the dye photoluminescence (PL). This has become a popular strategy for developing analytical biosensors relying on this quenching process for signal transduction. Here, we report on the use of stable PEGylated gold nanoparticles, covalently coupled to dye-labeled peptides, as sensitive optically addressable sensors for determining the catalytic efficiency of the human matrix metalloproteinase-14 (MMP-14), a cancer biomarker. We exploit real-time dye PL recovery triggered by MMP-14 hydrolysis of the AuNP-peptide-dye to extract quantitative analysis of the proteolysis kinetics. Sub-nanomolar limit of detections for MMP-14 has been achieved using our hybrid bioconjugates. In addition, we have used theoretical considerations within a diffusion-collision framework to derive enzyme substrate hydrolysis and inhibition kinetics equations, which allowed us to describe the complexity and irregularity of enzymatic proteolysis of nanosurface-immobilized peptide substrates. Our findings offer a great strategy for the development of highly sensitive and stable biosensors for cancer detection and imaging.
Collapse
Affiliation(s)
- Zhicheng Jin
- Department of Chemistry and Biochemistry, Florida State University, 95 Chieftan Way, Tallahassee, Florida 32306, United States
| | - Narjes Dridi
- Department of Chemistry and Biochemistry, Florida State University, 95 Chieftan Way, Tallahassee, Florida 32306, United States
| | - Goutam Palui
- Department of Chemistry and Biochemistry, Florida State University, 95 Chieftan Way, Tallahassee, Florida 32306, United States
| | - Valle Palomo
- Department of Chemistry, The Scripps Research Institute, La Jolla, California 92037, United States
| | - Jesse V Jokerst
- Department of NanoEngineering, Materials Science and Engineering Program, and Department of Radiology, University of California, San Diego, La Jolla, California 92093, United States
| | - Philip E Dawson
- Department of Chemistry, The Scripps Research Institute, La Jolla, California 92037, United States
| | - Qing-Xiang Amy Sang
- Department of Chemistry and Biochemistry, Florida State University, 95 Chieftan Way, Tallahassee, Florida 32306, United States
| | - Hedi Mattoussi
- Department of Chemistry and Biochemistry, Florida State University, 95 Chieftan Way, Tallahassee, Florida 32306, United States
| |
Collapse
|
2
|
Jin Z, Dridi N, Palui G, Palomo V, Jokerst JV, Dawson PE, Sang QXA, Mattoussi H. Quantum Dot-Peptide Conjugates as Energy Transfer Probes for Sensing the Proteolytic Activity of Matrix Metalloproteinase-14. Anal Chem 2023; 95:2713-2722. [PMID: 36705737 DOI: 10.1021/acs.analchem.2c03400] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
We detail the assembly and characterization of quantum dot (QD)-dye conjugates constructed using a peptide bridge specifically designed to recognize and interact with a breast cancer biomarker─matrix metalloproteinase-14 (MMP-14). The assembled QD conjugates are then used as optically addressable probes, relying on Förster resonance energy transfer (FRET) interactions as a transduction mechanism to detect the activity of MMP-14 in solution phase. The QDs were first coated with dithiolane poly(ethylene glycol) (PEG) bearing a carboxyl group that allows coupling via amide bond formation with different dye-labeled peptides. The analytical capability of the conjugates is enabled by correlating changes in the FRET efficiency with the conjugate valence and/or QD-to-dye separation distance, triggered and modulated by enzymatic proteolysis of surface-tethered peptides. The FRET probe exhibits great sensitivity to enzyme digestion with sub-nanomolar limit of detection. We further analyze the proteolysis data within the framework of the Michaelis-Menten model, which considers the fact that surface-attached peptides have a slower diffusion coefficient than free peptides. This results in reduced collision frequency and lower catalytic efficiency, kcat/KM. Our results suggest that our conjugate design is promising, effective, and potentially useful for in vivo analysis.
Collapse
Affiliation(s)
- Zhicheng Jin
- Department of Chemistry and Biochemistry, Florida State University, 95 Chieftan Way, Tallahassee, Florida 32306, United States
| | - Narjes Dridi
- Department of Chemistry and Biochemistry, Florida State University, 95 Chieftan Way, Tallahassee, Florida 32306, United States
| | - Goutam Palui
- Department of Chemistry and Biochemistry, Florida State University, 95 Chieftan Way, Tallahassee, Florida 32306, United States
| | - Valle Palomo
- Department of Chemistry, The Scripps Research Institute, La Jolla, California 92037, United States
| | - Jesse V Jokerst
- Department of NanoEngineering, University of California, San Diego, La Jolla, California 92093, United States
| | - Phillip E Dawson
- Department of Chemistry, The Scripps Research Institute, La Jolla, California 92037, United States
| | - Qing-Xiang Amy Sang
- Department of Chemistry and Biochemistry, Florida State University, 95 Chieftan Way, Tallahassee, Florida 32306, United States
| | - Hedi Mattoussi
- Department of Chemistry and Biochemistry, Florida State University, 95 Chieftan Way, Tallahassee, Florida 32306, United States
| |
Collapse
|
3
|
Electrogenerated chemiluminescence biosensor for assay of matrix metalloproteinase-14 and protein-expressing cancer cells via inhibitory peptides-based sandwich assay. Microchem J 2022. [DOI: 10.1016/j.microc.2022.107829] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
|
4
|
Abstract
Quantum dots (QDs) offer bright and robust photoluminescence among several other advantages in comparison to fluorescent dyes. In order to leverage the advantageous properties of QDs for applications in bioanalysis and imaging, simple and reliable methods for bioconjugation are required. One such method for conjugating peptides to QDs is the use of polyhistidine tags, which spontaneously bind to the surface of QDs. We describe protocols for assembling polyhistidine-tagged peptides to QDs and for characterizing the resultant QD-peptide conjugates. The latter include both electrophoretic and FRET-based protocols for confirming successful peptide assembly, estimating the maximum peptide loading capacity, and measuring the assembly kinetics. Sensors for protease activity and intracellular delivery are briefly noted as prospective applications of QD-peptide conjugates.
Collapse
|
5
|
Tian F, Chen Y, Wang W, Zhang J, Jiang T, Lu Q. Noninvasive Bioluminescence Imaging of Matrix Metalloproteinase-14 Activity in Lung Cancer Using a Membrane-Bound Biosensor. Anal Chem 2021; 93:8739-8745. [PMID: 34114806 DOI: 10.1021/acs.analchem.0c05189] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
Matrix metalloproteinase-14 (MMP-14) plays a crucial role in the cancer migration and metastasis by guiding the extracellular matrix remodeling and cell motility. Despite increasing efforts have been taken to develop methodology for measuring MMP-14 expression, there is a lack of tools capable of monitoring the MMP-14 dynamic activity with high temporal and spatial resolution in living cells and animals. Here, we describe the design of Gaussia luciferase (Gluc)-based membrane-bound biosensor for efficient visualization of MMP-14 activity. The epidermal growth factor (EGF) induced significant luciferase changes in the biosensor-transfected lung cancer cells. Deletion of the transmembrane domain in the mutant biosensor or treatment with an MMP-14 inhibitor, tissue inhibitor of metalloproteinase-2 (TIMP-2), relieved the EGF-induced luciferase activation, suggesting that MMP-14 functions at the cell surface to result in luciferase changes. Moreover, utilizing this biosensor, the bioluminescence signals activated by MMP-14 enabled clear visualization of MMP-14-positive lung tumors in animal models. Our results indicated this biosensor is an effective probe for quantitatively monitoring proteolytic activities in live cells and mouse models. These findings offer the general design of biosensors as an adaptable tool for studying various membrane-anchored proteases in biological models.
Collapse
Affiliation(s)
- Feng Tian
- Department of Thoracic Surgery, Tangdu Hospital, Air Force Medical University, No. 569 Xinsi Road, Xi'an 710038, China
| | - Yan Chen
- Department of Oncology, Xijing Hospital, Air Force Medical University, No. 169 Changle West Road, Xi'an 710032, China
| | - Wuping Wang
- Department of Thoracic Surgery, Tangdu Hospital, Air Force Medical University, No. 569 Xinsi Road, Xi'an 710038, China
| | - Jipeng Zhang
- Department of Thoracic Surgery, Tangdu Hospital, Air Force Medical University, No. 569 Xinsi Road, Xi'an 710038, China
| | - Tao Jiang
- Department of Thoracic Surgery, Tangdu Hospital, Air Force Medical University, No. 569 Xinsi Road, Xi'an 710038, China
| | - Qiang Lu
- Department of Thoracic Surgery, Tangdu Hospital, Air Force Medical University, No. 569 Xinsi Road, Xi'an 710038, China
| |
Collapse
|
6
|
Lei Z, Jian M, Li X, Wei J, Meng X, Wang Z. Biosensors and bioassays for determination of matrix metalloproteinases: state of the art and recent advances. J Mater Chem B 2021; 8:3261-3291. [PMID: 31750853 DOI: 10.1039/c9tb02189b] [Citation(s) in RCA: 33] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Matrix metalloproteinases (MMPs) are closely associated with various physiological and pathological processes, and have been regarded as potential biomarkers for severe diseases including cancer. Accurate determination of MMPs would advance our understanding of their roles in disease progression, and is of great significance for disease diagnosis, treatment and prognosis. In this review, we present a comprehensive overview of the developed bioassays/biosensors for detection of MMPs, and highlight the recent advancement in nanomaterial-based immunoassays for MMP abundance measurements and nanomaterial-based biosensors for MMP activity determination. Enzyme-linked immunosorbent assay (ELISA)-based immunoassays provide information about total levels of MMPs with high specificity and sensitivity, while target-based biosensors measure the amounts of active MMPs, and allow imaging of MMP activities in vivo. For multiplex and high-throughput analysis of MMPs, microfluidics and microarray-based assays are described. Additionally, we put forward the existing challenges and future prospects from our perspective.
Collapse
Affiliation(s)
- Zhen Lei
- School of Chemistry and Environmental Engineering, Wuhan Institute of Technology, Wuhan, 430205, P. R. China
| | | | | | | | | | | |
Collapse
|
7
|
Arndt N, Tran HDN, Zhang R, Xu ZP, Ta HT. Different Approaches to Develop Nanosensors for Diagnosis of Diseases. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2020; 7:2001476. [PMID: 33344116 PMCID: PMC7740096 DOI: 10.1002/advs.202001476] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/22/2020] [Revised: 07/18/2020] [Indexed: 05/09/2023]
Abstract
The success of clinical treatments is highly dependent on early detection and much research has been conducted to develop fast, efficient, and precise methods for this reason. Conventional methods relying on nonspecific and targeting probes are being outpaced by so-called nanosensors. Over the last two decades a variety of activatable sensors have been engineered, with a great diversity concerning the operating principle. Therefore, this review delineates the achievements made in the development of nanosensors designed for diagnosis of diseases.
Collapse
Affiliation(s)
- Nina Arndt
- Queensland Micro‐ and Nanotechnology CentreGriffith UniversityBrisbaneQueensland4111Australia
- Australian Institute for Bioengineering and Nanotechnologythe University of QueenslandBrisbaneQueensland4072Australia
- Department of BiotechnologyTechnische Universität BerlinBerlin10623Germany
| | - Huong D. N. Tran
- Queensland Micro‐ and Nanotechnology CentreGriffith UniversityBrisbaneQueensland4111Australia
- Australian Institute for Bioengineering and Nanotechnologythe University of QueenslandBrisbaneQueensland4072Australia
| | - Run Zhang
- Australian Institute for Bioengineering and Nanotechnologythe University of QueenslandBrisbaneQueensland4072Australia
| | - Zhi Ping Xu
- Australian Institute for Bioengineering and Nanotechnologythe University of QueenslandBrisbaneQueensland4072Australia
| | - Hang T. Ta
- Queensland Micro‐ and Nanotechnology CentreGriffith UniversityBrisbaneQueensland4111Australia
- Australian Institute for Bioengineering and Nanotechnologythe University of QueenslandBrisbaneQueensland4072Australia
- School of Environment and ScienceGriffith UniversityBrisbaneQueensland4111Australia
| |
Collapse
|
8
|
Liu L, He F, Yu Y, Wang Y. Application of FRET Biosensors in Mechanobiology and Mechanopharmacological Screening. Front Bioeng Biotechnol 2020; 8:595497. [PMID: 33240867 PMCID: PMC7680962 DOI: 10.3389/fbioe.2020.595497] [Citation(s) in RCA: 35] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2020] [Accepted: 10/19/2020] [Indexed: 12/15/2022] Open
Abstract
Extensive studies have shown that cells can sense and modulate the biomechanical properties of the ECM within their resident microenvironment. Thus, targeting the mechanotransduction signaling pathways provides a promising way for disease intervention. However, how cells perceive these mechanical cues of the microenvironment and transduce them into biochemical signals remains to be answered. Förster or fluorescence resonance energy transfer (FRET) based biosensors are a powerful tool that can be used in live-cell mechanotransduction imaging and mechanopharmacological drug screening. In this review, we will first introduce FRET principle and FRET biosensors, and then, recent advances on the integration of FRET biosensors and mechanobiology in normal and pathophysiological conditions will be discussed. Furthermore, we will summarize the current applications and limitations of FRET biosensors in high-throughput drug screening and the future improvement of FRET biosensors. In summary, FRET biosensors have provided a powerful tool for mechanobiology studies to advance our understanding of how cells and matrices interact, and the mechanopharmacological screening for disease intervention.
Collapse
Affiliation(s)
| | | | | | - Yingxiao Wang
- Department of Bioengineering, Institute of Engineering in Medicine, University of California, San Diego, La Jolla, CA, United States
| |
Collapse
|
9
|
|
10
|
Sun L, Chen Y, Chen F, Ma F. Peptide-based electrochemical biosensor for matrix metalloproteinase-14 and protein-overexpressing cancer cells based on analyte-induced cleavage of peptide. Microchem J 2020. [DOI: 10.1016/j.microc.2020.105103] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
|
11
|
Oliveira-Silva R, Sousa-Jerónimo M, Botequim D, Silva NJO, Paulo PMR, Prazeres DMF. Monitoring Proteolytic Activity in Real Time: A New World of Opportunities for Biosensors. Trends Biochem Sci 2020; 45:604-618. [PMID: 32386890 PMCID: PMC7199732 DOI: 10.1016/j.tibs.2020.03.011] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2019] [Revised: 03/09/2020] [Accepted: 03/17/2020] [Indexed: 12/12/2022]
Abstract
Proteases play a pivotal role in several biological processes, from digestion, cell proliferation, and differentiation to fertility. Deregulation of protease metabolism can result in several pathological conditions (i.e., cancer, neurodegenerative disorders, and others). Therefore, monitoring proteolytic activity in real time could have a fundamental role in the early diagnosis of these diseases. Herein, the main approaches used to develop biosensors for monitoring proteolytic activity are reviewed. A comparison of the advantages and disadvantages of each approach is provided along with a discussion of their importance and promising opportunities for the early diagnosis of severe diseases. This new era of biosensors can be characterized by the ability to control and monitor biological processes, ultimately improving the potential of personalized medicine.
Collapse
Affiliation(s)
- Rui Oliveira-Silva
- iBB - Institute for Bioengineering and Biosciences, Instituto Superior Técnico, Universidade de Lisboa, Av. Rovisco Pais 1, 1049-001 Lisboa, Portugal; Department of Applied Physics, Eindhoven University of Technology, 5600, MB, Eindhoven, The Netherlands; CICECO - Aveiro Institute of Materials and Departamento de Física, Universidade de Aveiro, 3810-193 Aveiro, Portugal.
| | - Mariana Sousa-Jerónimo
- iBB - Institute for Bioengineering and Biosciences, Instituto Superior Técnico, Universidade de Lisboa, Av. Rovisco Pais 1, 1049-001 Lisboa, Portugal
| | - David Botequim
- iBB - Institute for Bioengineering and Biosciences, Instituto Superior Técnico, Universidade de Lisboa, Av. Rovisco Pais 1, 1049-001 Lisboa, Portugal; Centro de Química Estrutural, Instituto Superior Técnico, Universidade de Lisboa, Av. Rovisco Pais 1, 1049-001 Lisboa, Portugal
| | - Nuno J O Silva
- CICECO - Aveiro Institute of Materials and Departamento de Física, Universidade de Aveiro, 3810-193 Aveiro, Portugal
| | - Pedro M R Paulo
- Centro de Química Estrutural, Instituto Superior Técnico, Universidade de Lisboa, Av. Rovisco Pais 1, 1049-001 Lisboa, Portugal
| | - Duarte M F Prazeres
- iBB - Institute for Bioengineering and Biosciences, Instituto Superior Técnico, Universidade de Lisboa, Av. Rovisco Pais 1, 1049-001 Lisboa, Portugal
| |
Collapse
|
12
|
Ji X, Xie S, Jiao Y, Zhang X, Sun D, Yang VC, Wang M, He H, Sun L. MT1-MMP activatable fluorogenic probes with enhanced specificity via high-affinity peptide conjugation for tumor imaging. Biomater Sci 2020; 8:2308-2317. [PMID: 32186291 DOI: 10.1039/c9bm02007a] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Overlapping substrate specificities within the family of matrix metalloproteinases (MMPs), usually caused by their highly conserved structural topology, increase the potential for a substrate to be cleaved by multiple enzymes within this family, which leads to the decrease in the selectivity of MMP substrate-based probes. To resolve this issue, MT1-MMP activatable fluorogenic probes for tumor detection with enhanced specificity were developed by combining a fluorescence resonance energy transfer (FRET) peptide substrate and its specific binding peptide with different lengths of linkers. The specificity of the probes increased profiting from the high affinity of the MT1-MMP specific binding peptide while keeping the ability to amplify the output imaging signals in response to MMP activity with the FRET substrate. Enzyme kinetics analysis clearly demonstrated that the conjugation of P-1 and MT1-AF7p enhanced both the specificity and selectivity of the fluorogenic probes for MT1-MMP, and introducing a linker composed of 12 PEG subunits into these two fragments led to optimized specificity and selectivity of the fluorogenic probe for MT1-MMP. Both in vitro and in vivo results revealed that the imaging probe with the linker composed of 12 PEG subunits based on our designed strategy could be effectively applied for MT1-MMP positive tumor imaging. Since this strategy for enhancing the specificity of protease sensing probes can be applied to other proteases and is not just limited to MT1-MMP, it is an appealing platform to achieve selective tumor imaging.
Collapse
Affiliation(s)
- Xiuru Ji
- Tianjin Key Laboratory on Technologies Enabling Development of Clinical Therapeutics and Diagnostics (Theranostics), School of Pharmacy, Tianjin Medical University, Tianjin 300070, China.
| | | | | | | | | | | | | | | | | |
Collapse
|
13
|
Semiconductor quantum dot FRET: Untangling energy transfer mechanisms in bioanalytical assays. Trends Analyt Chem 2020. [DOI: 10.1016/j.trac.2019.115750] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
|
14
|
|
15
|
Wen Y, Huo F, Wang J, Yin C. Multicolor Fluorescence Based on FRET Regulated by Functional Peptides To Screen High Metastatic Potential Cancer Cells. Anal Chem 2019; 91:15057-15063. [DOI: 10.1021/acs.analchem.9b03731] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Ying Wen
- Key Laboratory of Chemical Biology and Molecular Engineering of Ministry of Education, Key Laboratory of Materials for Energy Conversion and Storage of Shanxi Province, Institute of Molecular Science, Shanxi University, Taiyuan 030006, China
| | - Fangjun Huo
- Research Institute of Applied Chemistry, Shanxi University, Taiyuan 030006, China
| | - Junping Wang
- Key Laboratory of Chemical Biology and Molecular Engineering of Ministry of Education, Key Laboratory of Materials for Energy Conversion and Storage of Shanxi Province, Institute of Molecular Science, Shanxi University, Taiyuan 030006, China
| | - Caixia Yin
- Key Laboratory of Chemical Biology and Molecular Engineering of Ministry of Education, Key Laboratory of Materials for Energy Conversion and Storage of Shanxi Province, Institute of Molecular Science, Shanxi University, Taiyuan 030006, China
| |
Collapse
|
16
|
Qin Q, Laub S, Shi Y, Ouyang M, Peng Q, Zhang J, Wang Y, Lu S. Fluocell for Ratiometric and High-Throughput Live-Cell Image Visualization and Quantitation. FRONTIERS IN PHYSICS 2019; 7:154. [PMID: 33163483 PMCID: PMC7646842 DOI: 10.3389/fphy.2019.00154] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Spatiotemporal regulation of molecular activities dictates cellular function and fate. Investigation of dynamic molecular activities in live cells often requires the visualization and quantitation of fluorescent ratio image sequences with subcellular resolution and in high throughput. Hence, there is a great need for convenient software tools specifically designed with these capabilities. Here we describe a well-characterized open-source software package, Fluocell, customized to visualize pixelwise ratiometric images and calculate ratio time courses with subcellular resolution and in high throughput. Fluocell also provides group statistics and kinetic analysis functions for the quantified time courses, as well as 3D structure and function visualization for ratio images. The application of Fluocell is demonstrated by the ratiometric analysis of intensity images for several single-chain Förster (or fluorescence) resonance energy transfer (FRET)-based biosensors, allowing efficient quantification of dynamic molecular activities in a heterogeneous population of single live cells. Our analysis revealed distinct activation kinetics of Fyn kinase in the cytosolic and membrane compartments, and visualized a 4D spatiotemporal distribution of epigenetic signals in mitotic cells. Therefore, Fluocell provides an integrated environment for ratiometric live-cell image visualization and analysis, which generates high-quality single-cell dynamic data and allows the quantitative machine-learning of biophysical and biochemical computational models for molecular regulations in cells and tissues.
Collapse
Affiliation(s)
- Qin Qin
- Department of Bioengineering, Institute of Engineering in Medicine, University of California, San Diego, San Diego, CA, United States
| | - Shannon Laub
- Department of Bioengineering, Institute of Engineering in Medicine, University of California, San Diego, San Diego, CA, United States
| | - Yiwen Shi
- Department of Mathematics, Center of Computational Mathematics, University of California, San Diego, San Diego, CA, United State
| | - Mingxing Ouyang
- Institute of Biomedical Engineering and Health Sciences, Changzhou University, Changzhou, China
| | - Qin Peng
- Department of Bioengineering, Institute of Engineering in Medicine, University of California, San Diego, San Diego, CA, United States
| | - Jin Zhang
- Department of Pharmacology, University of California, San Diego, San Diego, CA, United States
| | - Yingxiao Wang
- Department of Bioengineering, Institute of Engineering in Medicine, University of California, San Diego, San Diego, CA, United States
| | - Shaoying Lu
- Department of Bioengineering, Institute of Engineering in Medicine, University of California, San Diego, San Diego, CA, United States
- Department of Mathematics, Center of Computational Mathematics, University of California, San Diego, San Diego, CA, United State
| |
Collapse
|
17
|
Huang X, Zhong J, Ren J, Wen D, Zhao W, Huan Y. A DNA aptamer recognizing MMP14 for in vivo and in vitro imaging identified by cell-SELEX. Oncol Lett 2019; 18:265-274. [PMID: 31289496 PMCID: PMC6540324 DOI: 10.3892/ol.2019.10282] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2018] [Accepted: 04/17/2019] [Indexed: 01/10/2023] Open
Abstract
A key challenge for the management of various types of cancer, including pancreatic cancer and hepatocellular carcinoma, is accurate diagnosis at an early stage. Matrix metalloproteinase 14 (MMP14) is overexpressed in numerous types of cancer and is associated with poor prognosis. Therefore, MMP14-specific imaging probes have potential use in the diagnosis of MMP14-positive cancer. Aptamers are short oligonucleotide sequences that can bind to molecular targets with a high specificity and affinity. Aptamers are typically obtained from an in vitro library; this process is usually termed systematic evolution of ligands by exponential enrichment (SELEX). In the present study, a DNA aptamer targeting MMP14 was obtained by cell-SELEX and termed M17, which specifically recognizes MMP14-positive cells. Aptamer M17 selectively binds to membrane proteins of MMP14-transfected 293T cells (Kd, 4.98±1.26 nM). Pancreatic cancer cell imaging suggested that aptamer M17 can bind to the cell membranes of two pancreatic cancer cell lines (MIA PaCa-2 and PANC-1). In vivo tumor imaging demonstrated that the targeting recognition of MIA PaCa-2 tumor cells in mice could be visualized using Cy5-labeled aptamer M17. Aptamer M17-conjugated polyethylene glycol-Fe3O4 can specifically bind to MIA PaCa-2 and PANC-1 cells, and reduce MRI T2-weighted imaging signal intensity. The DNA aptamer M17 has the advantages of simplicity of synthesis, small size, low immunogenicity, high penetrability and high affinity. Therefore, aptamer M17 is a potential molecular probe for the diagnosis and treatment of MMP14-positive cancer.
Collapse
Affiliation(s)
- Xufang Huang
- Department of Radiology, Xijing Hospital, Fourth Military Medical University, Xi'an, Shaanxi 710032, P.R. China
| | - Jinman Zhong
- Department of Radiology, Xijing Hospital, Fourth Military Medical University, Xi'an, Shaanxi 710032, P.R. China
| | - Jing Ren
- Department of Radiology, Xijing Hospital, Fourth Military Medical University, Xi'an, Shaanxi 710032, P.R. China
| | - Didi Wen
- Department of Radiology, Xijing Hospital, Fourth Military Medical University, Xi'an, Shaanxi 710032, P.R. China
| | - Weiwei Zhao
- Department of Radiology, Xijing Hospital, Fourth Military Medical University, Xi'an, Shaanxi 710032, P.R. China
| | - Yi Huan
- Department of Radiology, Xijing Hospital, Fourth Military Medical University, Xi'an, Shaanxi 710032, P.R. China
| |
Collapse
|
18
|
Kim I, Song H, Kim C, Kim M, Kyhm K, Kim K, Oh JW. Intermolecular distance measurement with TNT suppressor on the M13 bacteriophage-based Förster resonance energy transfer system. Sci Rep 2019; 9:496. [PMID: 30679611 PMCID: PMC6345812 DOI: 10.1038/s41598-018-36990-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2018] [Accepted: 11/21/2018] [Indexed: 11/09/2022] Open
Abstract
An M13 bacteriophage-based Förster resonance energy transfer (FRET) system is developed to estimate intermolecular distance at the nanoscale using a complex of CdSSe/ZnS nanocrystal quantum dots, genetically engineered M13 bacteriophages labeled with fluorescein isothiocyanate and trinitrotoluene (TNT) as an inhibitor. In the absence of trinitrotoluene, it is observed that a significant spectral shift from blue to green occur, which represents efficient energy transfer through dipole-dipole coupling between donor and acceptor, or FRET-on mode. On the other hand, in the presence of trinitrotoluene, the energy transfer is suppressed, since the donor-to-acceptor intermolecular distance is detuned by the specific capturing of TNT by the M13 bacteriophage, denoted as FRET-off mode. These noble features are confirmed by changes in the fluorescence intensity and the fluorescence decay curve. TNT addition to our system results in reducing the total energy transfer efficiency considerably from 16.1% to 7.6% compared to that in the non-TNT condition, while the exciton decay rate is significantly enhanced. In particular, we confirm that the energy transfer efficiency satisfies the original intermolecular distance dependence of FRET. The relative donor-to-acceptor distance is changed from 70.03 Å to 80.61 Å by inclusion of TNT.
Collapse
Affiliation(s)
- Inhong Kim
- School of Electrical Engineering and Computer Science, Gwangju Institute of Science and Technology, Gwangju, 61005, Republic of Korea
| | - Hyerin Song
- Department of Cogno-Mechatronics Engineering, Pusan National University, Busan, 46241, Republic of Korea
| | - Chuntae Kim
- Department of Nano Fusion Technology, Pusan National University, Busan, 46241, Republic of Korea
| | - Minwoo Kim
- Department of Cogno-Mechatronics Engineering, Pusan National University, Busan, 46241, Republic of Korea
| | - Kwangseuk Kyhm
- Department of Cogno-Mechatronics Engineering, Pusan National University, Busan, 46241, Republic of Korea
| | - Kyujung Kim
- Department of Cogno-Mechatronics Engineering, Pusan National University, Busan, 46241, Republic of Korea.
| | - Jin-Woo Oh
- Department of Nano Fusion Technology, Pusan National University, Busan, 46241, Republic of Korea. .,Department of Nanoenergy Engineering, Pusan National University, Busan, 46241, Republic of Korea.
| |
Collapse
|
19
|
Sun S, Liu Y, Xia J, Wang M, Tang R, Lei C, Huang Y, Nie Z, Yao S. A semisynthetic fluorescent protein assembly-based FRET probe for real-time profiling of cell membrane protease functions in situ. Chem Commun (Camb) 2019; 55:2218-2221. [DOI: 10.1039/c8cc09634a] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
A semisynthetic fluorescent protein assembly-based FRET probe (sFPAP) was proposed for cell membrane protease function assay.
Collapse
Affiliation(s)
- Sujuan Sun
- State Key Laboratory of Chemo/Biosensing and Chemometrics
- College of Chemistry and Chemical Engineering
- Hunan Provincial Key Laboratory of Biomacromolecular Chemical Biology
- Hunan University
- Changsha
| | - Yanan Liu
- State Key Laboratory of Chemo/Biosensing and Chemometrics
- College of Chemistry and Chemical Engineering
- Hunan Provincial Key Laboratory of Biomacromolecular Chemical Biology
- Hunan University
- Changsha
| | - Julan Xia
- State Key Laboratory of Chemo/Biosensing and Chemometrics
- College of Chemistry and Chemical Engineering
- Hunan Provincial Key Laboratory of Biomacromolecular Chemical Biology
- Hunan University
- Changsha
| | - Miao Wang
- State Key Laboratory of Chemo/Biosensing and Chemometrics
- College of Chemistry and Chemical Engineering
- Hunan Provincial Key Laboratory of Biomacromolecular Chemical Biology
- Hunan University
- Changsha
| | - Rui Tang
- State Key Laboratory of Chemo/Biosensing and Chemometrics
- College of Chemistry and Chemical Engineering
- Hunan Provincial Key Laboratory of Biomacromolecular Chemical Biology
- Hunan University
- Changsha
| | - Chunyang Lei
- State Key Laboratory of Chemo/Biosensing and Chemometrics
- College of Chemistry and Chemical Engineering
- Hunan Provincial Key Laboratory of Biomacromolecular Chemical Biology
- Hunan University
- Changsha
| | - Yan Huang
- State Key Laboratory of Chemo/Biosensing and Chemometrics
- College of Chemistry and Chemical Engineering
- Hunan Provincial Key Laboratory of Biomacromolecular Chemical Biology
- Hunan University
- Changsha
| | - Zhou Nie
- State Key Laboratory of Chemo/Biosensing and Chemometrics
- College of Chemistry and Chemical Engineering
- Hunan Provincial Key Laboratory of Biomacromolecular Chemical Biology
- Hunan University
- Changsha
| | - Shouzhuo Yao
- State Key Laboratory of Chemo/Biosensing and Chemometrics
- College of Chemistry and Chemical Engineering
- Hunan Provincial Key Laboratory of Biomacromolecular Chemical Biology
- Hunan University
- Changsha
| |
Collapse
|
20
|
Wiraja C, Yeo DC, Lio DCS, Zheng M, Xu C. Functional Imaging with Nucleic-Acid-Based Sensors: Technology, Application and Future Healthcare Prospects. Chembiochem 2018; 20:437-450. [PMID: 30230165 DOI: 10.1002/cbic.201800430] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2018] [Indexed: 12/11/2022]
Abstract
Timely monitoring and assessment of human health plays a crucial role in maintaining the wellbeing of our advancing society. In addition to medical tools and devices, suitable probe agents are crucial to assist such monitoring, either in passive or active ways (i.e., sensors) through inducible signals. In this review we highlight recent developments in activatable optical sensors based on nucleic acids. Sensing mechanisms and bio-applications of these nucleic acid sensors in ex vivo assays, intracellular or in vivo settings are described. In addition, we discuss the limitations of these sensors and how nanotechnology can complement/enhance sensor properties to promote translation into clinical applications.
Collapse
Affiliation(s)
- Christian Wiraja
- School of Chemical and Biomedical Engineering, Nanyang Technological University, 62 Nanyang Drive, Singapore, 637459, Singapore
| | - David C Yeo
- School of Chemical and Biomedical Engineering, Nanyang Technological University, 62 Nanyang Drive, Singapore, 637459, Singapore
| | - Daniel Chin Shiuan Lio
- School of Chemical and Biomedical Engineering, Nanyang Technological University, 62 Nanyang Drive, Singapore, 637459, Singapore
| | - Mengjia Zheng
- School of Chemical and Biomedical Engineering, Nanyang Technological University, 62 Nanyang Drive, Singapore, 637459, Singapore
| | - Chenjie Xu
- School of Chemical and Biomedical Engineering, Nanyang Technological University, 62 Nanyang Drive, Singapore, 637459, Singapore.,NTU-Northwestern Institute for Nanomedicine, Nanyang Technological University, 50 Nanyang Avenue, Singapore, 639798, Singapore
| |
Collapse
|
21
|
Jung S, Chen X. Quantum Dot-Dye Conjugates for Biosensing, Imaging, and Therapy. Adv Healthc Mater 2018; 7:e1800252. [PMID: 29862653 PMCID: PMC6149543 DOI: 10.1002/adhm.201800252] [Citation(s) in RCA: 34] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2018] [Revised: 04/17/2018] [Indexed: 01/14/2023]
Abstract
Adding value to the intrinsic properties of quantum dots (QDs), a strategy to conjugate dyes on the surface of QDs offers new opportunities, since the coupling between QD and dyes can be designed to allow Förster resonance energy transfer (FRET) and/or electron transfer (eT). These processes are accompanied by the change of QD and/or dye fluorescence and subsequent photochemical reactions (e.g., generation of 1 O2 ). Based on the change of fluorescence signals by the interaction with biomolecules, QD-dye conjugates are exploited as biosensors for the detection of pH, O2 , nicotinamide adenine dinucleotide (phosphate), ions, proteases, glutathione, and microRNA. QD-dye conjugates also can be modulated by the irradiation of external light; this concept is demonstrated for fluorescence super-resolution imaging as photoactivatable or photoswitchable probes. When QDs are conjugated with photosensitizing dyes, the QD-dye conjugates can generate 1 O2 in a repetitive manner for better cancer treatment, and can also be available for approaches using two-photon excitation or bioluminescence resonance energy transfer mechanisms for deep tissue imaging. Here, the recent advances in QD-dye conjugates, where FRET or eT produces fluorescence readouts or photochemical reactions, are reviewed. Various QD-dye conjugate systems and their biosensing/imaging and photodynamic therapeutics are summarized.
Collapse
Affiliation(s)
- Sungwook Jung
- Laboratory of Molecular Imaging and Nanomedicine, National Institute of Biomedical Imaging and Bioengineering, National Institutes of Health, Bethesda, MD, 20892, USA
| | - Xiaoyuan Chen
- Laboratory of Molecular Imaging and Nanomedicine, National Institute of Biomedical Imaging and Bioengineering, National Institutes of Health, Bethesda, MD, 20892, USA
| |
Collapse
|
22
|
A cell surface display fluorescent biosensor for measuring MMP14 activity in real-time. Sci Rep 2018; 8:5916. [PMID: 29651043 PMCID: PMC5897415 DOI: 10.1038/s41598-018-24080-0] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2017] [Accepted: 03/23/2018] [Indexed: 01/16/2023] Open
Abstract
Despite numerous recent advances in imaging technologies, one continuing challenge for cell biologists and microscopists is the visualization and measurement of endogenous proteins as they function within living cells. Achieving this goal will provide a tool that investigators can use to associate cellular outcomes with the behavior and activity of many well-studied target proteins. Here, we describe the development of a plasmid-based fluorescent biosensor engineered to measure the location and activity of matrix metalloprotease-14 (MMP14). The biosensor design uses fluorogen-activating protein technology coupled with a MMP14-selective protease sequence to generate a binary, “switch-on” fluorescence reporter capable of measuring MMP14 location, activity, and temporal dynamics. The MMP14-fluorogen activating protein biosensor approach is applicable to both short and long-term imaging modalities and contains an adaptable module that can be used to study many membrane-bound proteases. This MMP14 biosensor promises to serve as a tool for the advancement of a broad range of investigations targeting MMP14 activity during cell migration in health and disease.
Collapse
|
23
|
Li N, Zhang W, Lin L, He Z, Khan M, Lin JM. Live imaging of cell membrane-localized MT1-MMP activity on a microfluidic chip. Chem Commun (Camb) 2018; 54:11435-11438. [DOI: 10.1039/c8cc07117a] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
We designed an enzyme-activatable probe for real time in situ tracking of MT1-MMP activity.
Collapse
Affiliation(s)
- Nan Li
- Department of Chemistry, Beijing Key Laboratory of Microanalytical Methods and Instrumentation, MOE Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology, Tsinghua University
- Beijing
- China
| | - Weifei Zhang
- Department of Chemistry, Beijing Key Laboratory of Microanalytical Methods and Instrumentation, MOE Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology, Tsinghua University
- Beijing
- China
| | - Ling Lin
- CAS Key Laboratory of Standardization and Measurement for Nanotechnology, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology
- Beijing
- China
| | - Ziyi He
- Department of Chemistry, Beijing Key Laboratory of Microanalytical Methods and Instrumentation, MOE Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology, Tsinghua University
- Beijing
- China
| | - Mashooq Khan
- Department of Chemistry, Beijing Key Laboratory of Microanalytical Methods and Instrumentation, MOE Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology, Tsinghua University
- Beijing
- China
| | - Jin-Ming Lin
- Department of Chemistry, Beijing Key Laboratory of Microanalytical Methods and Instrumentation, MOE Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology, Tsinghua University
- Beijing
- China
| |
Collapse
|
24
|
Omagari S, Nakanishi T, Hirai Y, Kitagawa Y, Seki T, Fushimi K, Ito H, Hasegawa Y. Origin of Concentration Quenching in Ytterbium Coordination Polymers: Phonon-Assisted Energy Transfer. Eur J Inorg Chem 2017. [DOI: 10.1002/ejic.201701040] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Affiliation(s)
- Shun Omagari
- Graduate School of Chemical Sciences and Engineering; Hokkaido University; N13W8, Kita-ku 060-8628 Sapporo Hokkaido Japan
| | - Takayuki Nakanishi
- Faculty of Engineering; Hokkaido University; N13W8, Kita-ku 060-8628 Sapporo Hokkaido Japan
| | - Yuichi Hirai
- Graduate School of Chemical Sciences and Engineering; Hokkaido University; N13W8, Kita-ku 060-8628 Sapporo Hokkaido Japan
| | - Yuichi Kitagawa
- Faculty of Engineering; Hokkaido University; N13W8, Kita-ku 060-8628 Sapporo Hokkaido Japan
| | - Tomohiro Seki
- Faculty of Engineering; Hokkaido University; N13W8, Kita-ku 060-8628 Sapporo Hokkaido Japan
| | - Koji Fushimi
- Faculty of Engineering; Hokkaido University; N13W8, Kita-ku 060-8628 Sapporo Hokkaido Japan
| | - Hajime Ito
- Faculty of Engineering; Hokkaido University; N13W8, Kita-ku 060-8628 Sapporo Hokkaido Japan
| | - Yasuchika Hasegawa
- Faculty of Engineering; Hokkaido University; N13W8, Kita-ku 060-8628 Sapporo Hokkaido Japan
| |
Collapse
|
25
|
Huang X, Liu Y, Yung B, Xiong Y, Chen X. Nanotechnology-Enhanced No-Wash Biosensors for in Vitro Diagnostics of Cancer. ACS NANO 2017; 11:5238-5292. [PMID: 28590117 DOI: 10.1021/acsnano.7b02618] [Citation(s) in RCA: 145] [Impact Index Per Article: 20.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/06/2023]
Abstract
In vitro biosensors have been an integral component for early diagnosis of cancer in the clinic. Among them, no-wash biosensors, which only depend on the simple mixing of the signal generating probes and the sample solution without additional washing and separation steps, have been found to be particularly attractive. The outstanding advantages of facile, convenient, and rapid response of no-wash biosensors are especially suitable for point-of-care testing (POCT). One fast-growing field of no-wash biosensor design involves the usage of nanomaterials as signal amplification carriers or direct signal generating elements. The analytical capacity of no-wash biosensors with respect to sensitivity or limit of detection, specificity, stability, and multiplexing detection capacity is largely improved because of their large surface area, excellent optical, electrical, catalytic, and magnetic properties. This review provides a comprehensive overview of various nanomaterial-enhanced no-wash biosensing technologies and focuses on the analysis of the underlying mechanism of these technologies applied for the early detection of cancer biomarkers ranging from small molecules to proteins, and even whole cancerous cells. Representative examples are selected to demonstrate the proof-of-concept with promising applications for in vitro diagnostics of cancer. Finally, a brief discussion of common unresolved issues and a perspective outlook on the field are provided.
Collapse
Affiliation(s)
- Xiaolin Huang
- State Key Laboratory of Food Science and Technology, Nanchang University , Nanchang 330047, P. R. China
- Laboratory of Molecular Imaging and Nanomedicine (LOMIN), National Institute of Biomedical Imaging and Bioengineering (NIBIB), National Institutes of Health (NIH) , Bethesda, Maryland 20892, United States
| | - Yijing Liu
- Laboratory of Molecular Imaging and Nanomedicine (LOMIN), National Institute of Biomedical Imaging and Bioengineering (NIBIB), National Institutes of Health (NIH) , Bethesda, Maryland 20892, United States
| | - Bryant Yung
- Laboratory of Molecular Imaging and Nanomedicine (LOMIN), National Institute of Biomedical Imaging and Bioengineering (NIBIB), National Institutes of Health (NIH) , Bethesda, Maryland 20892, United States
| | - Yonghua Xiong
- State Key Laboratory of Food Science and Technology, Nanchang University , Nanchang 330047, P. R. China
| | - Xiaoyuan Chen
- Laboratory of Molecular Imaging and Nanomedicine (LOMIN), National Institute of Biomedical Imaging and Bioengineering (NIBIB), National Institutes of Health (NIH) , Bethesda, Maryland 20892, United States
| |
Collapse
|
26
|
Conway JRW, Warren SC, Timpson P. Context-dependent intravital imaging of therapeutic response using intramolecular FRET biosensors. Methods 2017; 128:78-94. [PMID: 28435000 DOI: 10.1016/j.ymeth.2017.04.014] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2017] [Revised: 03/13/2017] [Accepted: 04/08/2017] [Indexed: 12/18/2022] Open
Abstract
Intravital microscopy represents a more physiologically relevant method for assessing therapeutic response. However, the movement into an in vivo setting brings with it several additional considerations, the primary being the context in which drug activity is assessed. Microenvironmental factors, such as hypoxia, pH, fibrosis, immune infiltration and stromal interactions have all been shown to have pronounced effects on drug activity in a more complex setting, which is often lost in simpler two- or three-dimensional assays. Here we present a practical guide for the application of intravital microscopy, looking at the available fluorescent reporters and their respective expression systems and analysis considerations. Moving in vivo, we also discuss the microscopy set up and methods available for overlaying microenvironmental context to the experimental readouts. This enables a smooth transition into applying higher fidelity intravital imaging to improve the drug discovery process.
Collapse
Affiliation(s)
- James R W Conway
- Garvan Institute of Medical Research and The Kinghorn Cancer Centre, Cancer Division, Sydney, NSW 2010, Australia; St Vincent's Clinical School, Faculty of Medicine, University of NSW, Sydney, NSW 2010, Australia
| | - Sean C Warren
- Garvan Institute of Medical Research and The Kinghorn Cancer Centre, Cancer Division, Sydney, NSW 2010, Australia; St Vincent's Clinical School, Faculty of Medicine, University of NSW, Sydney, NSW 2010, Australia
| | - Paul Timpson
- Garvan Institute of Medical Research and The Kinghorn Cancer Centre, Cancer Division, Sydney, NSW 2010, Australia; St Vincent's Clinical School, Faculty of Medicine, University of NSW, Sydney, NSW 2010, Australia.
| |
Collapse
|
27
|
Luby BM, Charron DM, MacLaughlin CM, Zheng G. Activatable fluorescence: From small molecule to nanoparticle. Adv Drug Deliv Rev 2017; 113:97-121. [PMID: 27593264 DOI: 10.1016/j.addr.2016.08.010] [Citation(s) in RCA: 65] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2016] [Revised: 08/15/2016] [Accepted: 08/27/2016] [Indexed: 12/23/2022]
Abstract
Molecular imaging has emerged as an indispensable technology in the development and application of drug delivery systems. Targeted imaging agents report the presence of biomolecules, including therapeutic targets and disease biomarkers, while the biological behaviour of labelled delivery systems can be non-invasively assessed in real time. As an imaging modality, fluorescence offers additional signal specificity and dynamic information due to the inherent responsivity of fluorescence agents to interactions with other optical species and with their environment. Harnessing this responsivity is the basis of activatable fluorescence imaging, where interactions between an engineered fluorescence agent and its biological target induce a fluorogenic response. Small molecule activatable agents are frequently derivatives of common fluorophores designed to chemically react with their target. Macromolecular scale agents are useful for imaging proteins and nucleic acids, although their biological delivery can be difficult. Nanoscale activatable agents combine the responsivity of fluorophores with the unique optical and physical properties of nanomaterials. The molecular imaging application and overall complexity of biological target dictate the most advantageous fluorescence agent size scale and activation strategy.
Collapse
Affiliation(s)
- Benjamin M Luby
- Princess Margaret Cancer Centre and Techna Institute, University Health Network, Toronto, ON, Canada
| | - Danielle M Charron
- Princess Margaret Cancer Centre and Techna Institute, University Health Network, Toronto, ON, Canada; Institute of Biomaterials and Biomedical Engineering, University of Toronto, Toronto, ON, Canada
| | - Christina M MacLaughlin
- Princess Margaret Cancer Centre and Techna Institute, University Health Network, Toronto, ON, Canada
| | - Gang Zheng
- Princess Margaret Cancer Centre and Techna Institute, University Health Network, Toronto, ON, Canada; Institute of Biomaterials and Biomedical Engineering, University of Toronto, Toronto, ON, Canada; Department of Medical Biophysics, University of Toronto, Toronto, ON, Canada.
| |
Collapse
|
28
|
Jeong S, Song J, Lee W, Ryu YM, Jung Y, Kim SY, Kim K, Hong SC, Myung SJ, Kim S. Cancer-Microenvironment-Sensitive Activatable Quantum Dot Probe in the Second Near-Infrared Window. NANO LETTERS 2017; 17:1378-1386. [PMID: 28125238 DOI: 10.1021/acs.nanolett.6b04261] [Citation(s) in RCA: 66] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Abstract
Recent technological advances have expanded fluorescence (FL) imaging into the second near-infrared region (NIR-II; wavelength = 1000-1700 nm), providing high spatial resolution through deep tissues. However, bright and compact fluorophores are rare in this region, and sophisticated control over NIR-II probes has not been fully achieved yet. Herein, we report an enzyme-activatable NIR-II probe that exhibits FL upon matrix metalloprotease activity in tumor microenvironment. Bright and stable PbS/CdS/ZnS core/shell/shell quantum dots (QDs) were synthesized as a model NIR-II fluorophore, and activatable modulators were attached to exploit photoexcited electron transfer (PET) quenching. The quasi type-II QD band alignment allowed rapid and effective FL modulations with the compact surface ligand modulator that contains methylene blue PET quencher. The modulator was optimized to afford full enzyme accessibility and high activation signal surge upon the enzyme activity. Using a colon cancer mouse model, the probe demonstrated selective FL activation at tumor sites with 3-fold signal enhancement in 10 min. Optical phantom experiments confirmed the advantages of the NIR-II probe over conventional dyes in the first near-infrared region.
Collapse
Affiliation(s)
| | | | | | - Yeon Mi Ryu
- Asan Institute for Life Sciences, Asan Medical Center , 88 Olympic-ro, 43-gil, Songpa-gu, Seoul, 05505, Republic of Korea
| | | | - Sang-Yeob Kim
- Asan Institute for Life Sciences, Asan Medical Center , 88 Olympic-ro, 43-gil, Songpa-gu, Seoul, 05505, Republic of Korea
- Department of Convergence Medicine, University of Ulsan College of Medicine , 88 Olympic-ro, 43-gil, Songpa-gu, Seoul, 05505, Republic of Korea
| | - Kangwook Kim
- Department of Civil and Environmental Engineering, Korea Army Academy at Young-cheon , Yeongcheon-si, Gyeongsangbuk-do South Korea
| | | | - Seung Jae Myung
- Asan Institute for Life Sciences, Asan Medical Center , 88 Olympic-ro, 43-gil, Songpa-gu, Seoul, 05505, Republic of Korea
- Department of Convergence Medicine, University of Ulsan College of Medicine , 88 Olympic-ro, 43-gil, Songpa-gu, Seoul, 05505, Republic of Korea
- Department of Gastroenterology, Asan Medical Center, University of Ulsan College of Medicine , 88 Olympic-ro, 43-gil, Songpa-gu, Seoul, 05505, Republic of Korea
| | | |
Collapse
|
29
|
Murata Y, Jo JI, Tabata Y. Preparation of gelatin nanospheres incorporating quantum dots and iron oxide nanoparticles for multimodal cell imaging. JOURNAL OF BIOMATERIALS SCIENCE-POLYMER EDITION 2017; 28:555-568. [PMID: 28142329 DOI: 10.1080/09205063.2017.1286185] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Abstract
The objective of this study is to prepare a multimodal probe which can simultaneously visualize cells by optical and magnetic resonance (MR) imaging modalities. Gelatin nanospheres incorporating quantum dots (QD) and iron oxide nanoparticles (IONP) were prepared by the conventional emulsion method. The percentage of QD and IONP incorporated in gelatin nanospheres was changed by the concentrations of gelatin and glutaraldehyde used. However, the apparent size and surface zeta potential were hardly changed. Gelatin nanospheres incorporating QD and IONP were treated with octa-arginine (R8) of a cell-penetrating peptide. When incubated with normal human articular chondrocytes, gelatin nanospheres incorporating QD and IONP were efficiently internalized into the cells although their cytotoxicity was observed at the R8 concentration of 320 μM. The cells internalizing gelatin nanospheres incorporating QD and IONP could be visualized by both the optical and MR imaging modalities. It is concluded that gelatin nanospheres incorporating QD and IONP are promising for the probe of multimodal cell imaging.
Collapse
Affiliation(s)
- Yuki Murata
- a Laboratory of Biomaterials, Department of Regeneration Science and Engineering , Institute for Frontier Life and Medical Sciences, Kyoto University , Kyoto , Japan
| | - Jun-Ichiro Jo
- a Laboratory of Biomaterials, Department of Regeneration Science and Engineering , Institute for Frontier Life and Medical Sciences, Kyoto University , Kyoto , Japan
| | - Yasuhiko Tabata
- a Laboratory of Biomaterials, Department of Regeneration Science and Engineering , Institute for Frontier Life and Medical Sciences, Kyoto University , Kyoto , Japan
| |
Collapse
|
30
|
Bujak Ł, Ishii T, Sharma DK, Hirata S, Vacha M. Selective turn-on and modulation of resonant energy transfer in single plasmonic hybrid nanostructures. NANOSCALE 2017; 9:1511-1519. [PMID: 28067372 DOI: 10.1039/c6nr08740j] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Förster resonant energy transfer (FRET) is a nonradiative process by which the energy of light absorbed by a donor molecule is transferred to an acceptor molecule over a distance of several nanometers. FRET plays a crucial role in photosynthesis and nature-inspired artificial light-harvesting systems that are being explored for use in energy conversion applications. Localized plasmons of metal nanoparticles can potentially lead to a significant increase of FRET efficiency and effective donor-acceptor distance. Here, we prepare hybrid nanostructures composed of a gold nanorod and donor and acceptor molecules covalently attached to its surface, and study them on the level of a single nanoparticle by simultaneous dark-field scattering, fluorescence imaging and spectroscopy. The single-particle approach enables selective excitation of the longitudinal plasmon of the gold nanorod by polarization of the excitation light. The emission intensity of the acceptor molecules can be controllably and reversibly modulated over a wide range by the polarization angle, thus enabling a selective turn-on of the FRET process and control over the emission color of the hybrid nanostructure. Numerical simulations show that the interactions of the donor and acceptor molecules with the plasmon lead to an increase of the energy transfer efficiency by a factor of ∼65. These findings represent the concept of a novel colour switching approach and could pave the way for innovative applications in optoelectronics and nanophotonics.
Collapse
Affiliation(s)
- Łukasz Bujak
- Department of Materials Science and Engineering, Tokyo Institute of Technology, Ookayama 2-12-1-S8-44, Meguro-ku, Tokyo 152-8552, Japan.
| | - Tatsuya Ishii
- Department of Materials Science and Engineering, Tokyo Institute of Technology, Ookayama 2-12-1-S8-44, Meguro-ku, Tokyo 152-8552, Japan.
| | - Dharmendar Kumar Sharma
- Department of Materials Science and Engineering, Tokyo Institute of Technology, Ookayama 2-12-1-S8-44, Meguro-ku, Tokyo 152-8552, Japan.
| | - Shuzo Hirata
- Department of Materials Science and Engineering, Tokyo Institute of Technology, Ookayama 2-12-1-S8-44, Meguro-ku, Tokyo 152-8552, Japan.
| | - Martin Vacha
- Department of Materials Science and Engineering, Tokyo Institute of Technology, Ookayama 2-12-1-S8-44, Meguro-ku, Tokyo 152-8552, Japan.
| |
Collapse
|
31
|
Yu X, Wang Z, Su Z, Wei G. Design, fabrication, and biomedical applications of bioinspired peptide–inorganic nanomaterial hybrids. J Mater Chem B 2017; 5:1130-1142. [DOI: 10.1039/c6tb02659a] [Citation(s) in RCA: 50] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
We presented the design, composition, and typical biomedical applications of bioinspired peptide–inorganic nanomaterial hybrids.
Collapse
Affiliation(s)
- Xiaoqing Yu
- State Key Laboratory of Chemical Resource Engineering
- Beijing University of Chemical Technology
- 100029 Beijing
- China
| | - Zhenping Wang
- Faculty of Production Engineering
- University of Bremen
- D-28359 Bremen
- Germany
| | - Zhiqiang Su
- State Key Laboratory of Chemical Resource Engineering
- Beijing University of Chemical Technology
- 100029 Beijing
- China
| | - Gang Wei
- Faculty of Production Engineering
- University of Bremen
- D-28359 Bremen
- Germany
| |
Collapse
|
32
|
Kim HO, Lim JW, Choi J, Lee H, Son HY, Kim J, Park G, Chun H, Song D, Huh YM, Haam S. Anchored protease-activatable polymersomes for molecular diagnostics of metastatic cancer cells. J Mater Chem B 2017; 5:9571-9578. [DOI: 10.1039/c7tb01675a] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
We have designed unique protease-activatable polymersomes (PeptiSomes) forin situquantitative analysis with high selectivity towards MT1-MMP.
Collapse
Affiliation(s)
- Hyun-Ouk Kim
- Department of Chemical & Biomolecular Engineering
- Yonsei University
- Republic of Korea
| | - Jong-Woo Lim
- Department of Chemical & Biomolecular Engineering
- Yonsei University
- Republic of Korea
| | - Jihye Choi
- Research Institute of Radiological Science
- College of Medicine
- Yonsei University
- Republic of Korea
| | - Hwunjae Lee
- Korea Basic Science Institute (KBSI)
- Republic of Korea
| | - Hye Young Son
- Department of Radiology
- College of Medicine
- Yonsei University
- Republic of Korea
| | - Jihye Kim
- Department of Chemical & Biomolecular Engineering
- Yonsei University
- Republic of Korea
| | - Geunseon Park
- Department of Chemical & Biomolecular Engineering
- Yonsei University
- Republic of Korea
| | - Haejin Chun
- Department of Chemical & Biomolecular Engineering
- Yonsei University
- Republic of Korea
| | - Daesub Song
- Department of Pharmacy
- College of Pharmacy, Korea University
- Republic of Korea
| | - Yong-Min Huh
- Department of Radiology
- College of Medicine
- Yonsei University
- Republic of Korea
| | - Seungjoo Haam
- Department of Chemical & Biomolecular Engineering
- Yonsei University
- Republic of Korea
| |
Collapse
|
33
|
Li H, Zhao Y, Chen Z, Xu D. Silver enhanced ratiometric nanosensor based on two adjustable Fluorescence Resonance Energy Transfer modes for quantitative protein sensing. Biosens Bioelectron 2016; 87:428-432. [PMID: 27589407 DOI: 10.1016/j.bios.2016.08.075] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2016] [Revised: 08/11/2016] [Accepted: 08/23/2016] [Indexed: 10/21/2022]
Abstract
We developed a silver decahedral nanoparticles (Ag10NPs)-enhanced ratiometric Fluorescence Resonance Energy Transfer (FRET) nanosensor based on two adjustable FRET modes. Alexa Fluor 488 (Alexa) and Cyanine3 (Cy3)-aptamer-Black hole quencher-2 (BHQ-2) were bound with Ag10NPs to form the ratiometric FRET nanosensor (Ag-Alexa/Cy3/BHQ-2). Alexa act as donor and Cy3 as acceptor in the FRET mode 1 while Cy3 was donor and BHQ-2 was acceptor in the FRET mode 2. In the absence of platelet-derived growth factor (PDGF-BB), the fluorescence intensity of Alexa was lowest while that of Cy3 was highest. Upon the addition of PDGF-BB, Cy3-aptamer-BHQ-2 binds with PDGF-BB resulting in the change of structure of aptamer. The fluorescence intensity of Alexa increased while that of Cy3 decreased. In addition, the fluorescence intensity ratio of Alexa to Cy3 increased remarkably with PDGF-BB concentration in the range of 0.4-400ng/mL. A good linear response was obtained when the PDGF-BB concentrations were in the range of 3.1-200ng/mL, with the limit of detection at 0.4ng/mL. When compared to sensors without Ag10NPs (Alexa/Cy3/BHQ-2) and one without BHQ-2 (Ag-Alexa/Cy3), the new nanosensor Ag-Alexa/Cy3/BHQ-2 showed remarkable increase in sensitivity.
Collapse
Affiliation(s)
- Hui Li
- State Key Laboratory of Analytical Chemistry for Life Science, School of Chemistry and Chemical Engineering, Nanjing University, China
| | - Yaju Zhao
- State Key Laboratory of Analytical Chemistry for Life Science, School of Chemistry and Chemical Engineering, Nanjing University, China
| | - Zhu Chen
- State Key Laboratory of Analytical Chemistry for Life Science, School of Chemistry and Chemical Engineering, Nanjing University, China
| | - Danke Xu
- State Key Laboratory of Analytical Chemistry for Life Science, School of Chemistry and Chemical Engineering, Nanjing University, China.
| |
Collapse
|
34
|
Chen L, Yang H, Xiao Y, Tang X, Li Y, Han Q, Fu J, Yang Y, Zhu Y. LncRNA GAS5 is a critical regulator of metastasis phenotype of melanoma cells and inhibits tumor growth in vivo. Onco Targets Ther 2016; 9:4075-87. [PMID: 27445498 PMCID: PMC4938146 DOI: 10.2147/ott.s98203] [Citation(s) in RCA: 43] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022] Open
Abstract
The present study intended to demonstrate the effects of long noncoding RNA growth arrest-specific transcript 5 (GAS5) on the migration and invasion of melanoma cells. We first detected the expression of GAS5 among four kinds of melanoma cell lines, followed by constructing GAS5-knocked down and overexpressed stable cells. Next, we evaluated the effects of GAS5 on cell migration and invasion using wound healing and gelatin zymography assays. Finally, melanoma cells with different GAS5 expression were injected into nude mice, and the tumor volumes were recorded and tumor tissues were analyzed after sacrificing the mice. This study systematically examined the function of GAS5 in mediating melanoma metastasis and revealed that GAS5 plays an anticancer role in melanoma via regulating gelatinase A and B, both in vitro and in vivo.
Collapse
Affiliation(s)
- Long Chen
- Department of Biochemistry and Molecular Biology, Kunming Medical University, Kunming, Yunnan, People's Republic of China; PET/CT Center, Yunan Tumor Hospital, the Third Affiliated Hospital of Kunming Medical University, Kunming Medical University, Kunming, Yunnan, People's Republic of China
| | - Huixin Yang
- Department of Biochemistry and Molecular Biology, Kunming Medical University, Kunming, Yunnan, People's Republic of China
| | - Yanbin Xiao
- Department of Orthopaedics, Yunan Tumor Hospital, the Third Affiliated Hospital of Kunming Medical University, Kunming Medical University, Kunming, Yunnan, People's Republic of China
| | - Xiaoxia Tang
- Department of Pharmacy, the Second Affiliated Hospital of Kunming Medical University, Kunming Medical University, Kunming, Yunnan, People's Republic of China
| | - Yuqian Li
- Department of Biochemistry and Molecular Biology, Kunming Medical University, Kunming, Yunnan, People's Republic of China
| | - Qiaoqiao Han
- Department of Biochemistry and Molecular Biology, Kunming Medical University, Kunming, Yunnan, People's Republic of China
| | - Junping Fu
- Department of Orthopaedics, Yunan Tumor Hospital, the Third Affiliated Hospital of Kunming Medical University, Kunming Medical University, Kunming, Yunnan, People's Republic of China
| | - Yuye Yang
- Department of Biochemistry and Molecular Biology, Kunming Medical University, Kunming, Yunnan, People's Republic of China
| | - Yuechun Zhu
- Department of Biochemistry and Molecular Biology, Kunming Medical University, Kunming, Yunnan, People's Republic of China
| |
Collapse
|
35
|
Hildebrandt N, Spillmann CM, Algar WR, Pons T, Stewart MH, Oh E, Susumu K, Díaz SA, Delehanty JB, Medintz IL. Energy Transfer with Semiconductor Quantum Dot Bioconjugates: A Versatile Platform for Biosensing, Energy Harvesting, and Other Developing Applications. Chem Rev 2016; 117:536-711. [DOI: 10.1021/acs.chemrev.6b00030] [Citation(s) in RCA: 457] [Impact Index Per Article: 57.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Affiliation(s)
- Niko Hildebrandt
- NanoBioPhotonics
Institut d’Electronique Fondamentale (I2BC), Université Paris-Saclay, Université Paris-Sud, CNRS, 91400 Orsay, France
| | | | - W. Russ Algar
- Department
of Chemistry, University of British Columbia, Vancouver, BC V6T 1Z1, Canada
| | - Thomas Pons
- LPEM;
ESPCI Paris, PSL Research University; CNRS; Sorbonne Universités, UPMC, F-75005 Paris, France
| | | | - Eunkeu Oh
- Sotera Defense Solutions, Inc., Columbia, Maryland 21046, United States
| | - Kimihiro Susumu
- Sotera Defense Solutions, Inc., Columbia, Maryland 21046, United States
| | - Sebastian A. Díaz
- American Society for Engineering Education, Washington, DC 20036, United States
| | | | | |
Collapse
|
36
|
Xu Q, Zhang Y, Tang B, Zhang CY. Multicolor Quantum Dot-Based Chemical Nose for Rapid and Array-Free Differentiation of Multiple Proteins. Anal Chem 2016; 88:2051-8. [PMID: 26759896 DOI: 10.1021/acs.analchem.5b03109] [Citation(s) in RCA: 52] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
Nanomaterial-based differential sensors (e.g., chemical nose) have shown great potential for identification of multiple proteins because of their modulatable recognition and transduction capability but with the limitation of array separation, single-channel read-out, and long incubation time. Here, we develop a multicolor quantum dot (QD)-based multichannel sensing platform for rapid identification of multiple proteins in an array-free format within 1 min. A protein-binding dye of bromophenol blue (BPB) is explored as an efficient reversible quencher of QDs, and the mixture of BPB with multicolor QDs may generate the quenched QD-BPB complexes. The addition of proteins will disrupt the QD-BPB complexes as a result of the competitive protein-BPB binding, inducing the separation of BPB from the QDs and the generation of distinct fluorescence patterns. The multicolor patterns may be collected at a single-wavelength excitation and differentiated by a linear discriminant analysis (LDA). This multichannel sensing platform allows for the discrimination of ten proteins and seven cell lines with the fastest response rate reported to date, holding great promise for rapid and high-throughput medical diagnostics.
Collapse
Affiliation(s)
- Qinfeng Xu
- Single-Molecule Detection and Imaging Laboratory, Key Lab of Health Informatics of Chinese Academy of Sciences, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences , Shenzhen 518055, China
| | - Yihong Zhang
- Single-Molecule Detection and Imaging Laboratory, Key Lab of Health Informatics of Chinese Academy of Sciences, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences , Shenzhen 518055, China.,Nano Science and Technology Institute, University of Science and Technology of China , Suzhou 215123, China
| | - Bo Tang
- College of Chemistry, Chemical Engineering and Materials Science, Collaborative Innovation Center of Functionalized Probes for Chemical Imaging in Universities of Shandong, Key Laboratory of Molecular and Nano Probes, Ministry of Education, Shandong Provincial Key Laboratory of Clean Production of Fine Chemicals, Shandong Normal University , Jinan 250014, China
| | - Chun-yang Zhang
- College of Chemistry, Chemical Engineering and Materials Science, Collaborative Innovation Center of Functionalized Probes for Chemical Imaging in Universities of Shandong, Key Laboratory of Molecular and Nano Probes, Ministry of Education, Shandong Provincial Key Laboratory of Clean Production of Fine Chemicals, Shandong Normal University , Jinan 250014, China.,Single-Molecule Detection and Imaging Laboratory, Key Lab of Health Informatics of Chinese Academy of Sciences, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences , Shenzhen 518055, China
| |
Collapse
|
37
|
Yuan B, Zhou Y, Guo Q, Wang K, Yang X, Meng X, Wan J, Tan Y, Huang Z, Xie Q, Zhao X. A signal-on split aptasensor for highly sensitive and specific detection of tumor cells based on FRET. Chem Commun (Camb) 2016; 52:1590-3. [DOI: 10.1039/c5cc08060f] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
The split aptasensor for highly sensitive and specific detection of tumor cells based on FRET.
Collapse
|
38
|
Zhan N, Palui G, Kapur A, Palomo V, Dawson PE, Mattoussi H. Controlling the Architecture, Coordination, and Reactivity of Nanoparticle Coating Utilizing an Amino Acid Central Scaffold. J Am Chem Soc 2015; 137:16084-97. [DOI: 10.1021/jacs.5b10359] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Naiqian Zhan
- Department
of Chemistry and Biochemistry, Florida State University, Tallahassee, Florida 32306, United States
| | - Goutam Palui
- Department
of Chemistry and Biochemistry, Florida State University, Tallahassee, Florida 32306, United States
| | - Anshika Kapur
- Department
of Chemistry and Biochemistry, Florida State University, Tallahassee, Florida 32306, United States
| | - Valle Palomo
- Department
of Chemistry, The Scripps Research Institute, La Jolla, California 92037, United States
| | - Philip E. Dawson
- Department
of Chemistry, The Scripps Research Institute, La Jolla, California 92037, United States
| | - Hedi Mattoussi
- Department
of Chemistry and Biochemistry, Florida State University, Tallahassee, Florida 32306, United States
| |
Collapse
|