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Zhang Q, Xie T, Yi X, Xing G, Feng S, Chen S, Li Y, Lin JM. Microfluidic Aqueous Two-Phase Focusing of Chemical Species for In Situ Subcellular Stimulation. ACS APPLIED MATERIALS & INTERFACES 2023; 15:45640-45650. [PMID: 37733946 DOI: 10.1021/acsami.3c09665] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/23/2023]
Abstract
Confinement of chemical species in a controllable micrometer-level (several to a dozen micrometers) space in an aqueous environment is essential for precisely manipulating chemical events in subcellular regions. However, rapid diffusion and hard-to-control micrometer-level fluids make it a tough challenge. Here, a versatile open microfluidic method based on an aqueous two-phase system (ATPS) is developed to restrict species inside an open space with micron-level width. Unequal standard chemical potentials of the chemical species in two phases and space-time correspondence in the microfluidic system prevent outward diffusion across the phase interface, retaining the target species inside its preferred phase flow and creating a sharp boundary with a dramatic concentration change. Then, the chemical flow (the preferred phase with target chemical species) is precisely manipulated by a microfluidic probe, which can be compressed to a micron-level width and aimed at an arbitrary position of the sample. As a demonstration of the feasibility and versatility of the strategy, chemical flow is successfully applied to subcellular regions of various kinds of living single cells. Subcellular regions are successfully labeled (cytomembrane and mitochondria) and damaged. Healing-regeneration behaviors of living single cells are triggered by subcellular damage and analyzed. The method is relatively general regarding the species of chemicals and biosamples, which could promote deeper cell research.
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Affiliation(s)
- Qiang Zhang
- Beijing Key Laboratory of Microanalytical Methods and Instrumentation, Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology (Ministry of Education), Department of Chemistry, Tsinghua University, Beijing 100084, China
| | - Tianze Xie
- Beijing Key Laboratory of Microanalytical Methods and Instrumentation, Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology (Ministry of Education), Department of Chemistry, Tsinghua University, Beijing 100084, China
| | - Xizhen Yi
- Beijing Key Laboratory of Microanalytical Methods and Instrumentation, Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology (Ministry of Education), Department of Chemistry, Tsinghua University, Beijing 100084, China
| | - Gaowa Xing
- Beijing Key Laboratory of Microanalytical Methods and Instrumentation, Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology (Ministry of Education), Department of Chemistry, Tsinghua University, Beijing 100084, China
| | - Shuo Feng
- Beijing Key Laboratory of Microanalytical Methods and Instrumentation, Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology (Ministry of Education), Department of Chemistry, Tsinghua University, Beijing 100084, China
| | - Shulang Chen
- Beijing Key Laboratory of Microanalytical Methods and Instrumentation, Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology (Ministry of Education), Department of Chemistry, Tsinghua University, Beijing 100084, China
| | - Yuxuan Li
- Beijing Key Laboratory of Microanalytical Methods and Instrumentation, Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology (Ministry of Education), Department of Chemistry, Tsinghua University, Beijing 100084, China
| | - Jin-Ming Lin
- Beijing Key Laboratory of Microanalytical Methods and Instrumentation, Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology (Ministry of Education), Department of Chemistry, Tsinghua University, Beijing 100084, China
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Ahmed T, Yamanishi C, Kojima T, Takayama S. Aqueous Two-Phase Systems and Microfluidics for Microscale Assays and Analytical Measurements. ANNUAL REVIEW OF ANALYTICAL CHEMISTRY (PALO ALTO, CALIF.) 2021; 14:231-255. [PMID: 33950741 DOI: 10.1146/annurev-anchem-091520-101759] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Phase separation is a common occurrence in nature. Synthetic and natural polymers, salts, ionic liquids, surfactants, and biomacromolecules phase separate in water, resulting in an aqueous two-phase system (ATPS). This review discusses the properties, handling, and uses of ATPSs. These systems have been used for protein, nucleic acid, virus, and cell purification and have in recent years found new uses for small organics, polysaccharides, extracellular vesicles, and biopharmaceuticals. Analytical biochemistry applications such as quantifying protein-protein binding, probing for conformational changes, or monitoring enzyme activity have been performed with ATPSs. Not only are ATPSs biocompatible, they also retain their properties at the microscale, enabling miniaturization experiments such as droplet microfluidics, bacterial quorum sensing, multiplexed and point-of-care immunoassays, and cell patterning. ATPSs include coacervates and may find wider interest in the context of intracellular phase separation and origin of life. Recent advances in fundamental understanding and in commercial application are also considered.
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Affiliation(s)
- Tasdiq Ahmed
- Walter H. Coulter Department of Biomedical Engineering, Georgia Institute of Technology and Emory School of Medicine, Atlanta, Georgia 30332, USA;
| | - Cameron Yamanishi
- Walter H. Coulter Department of Biomedical Engineering, Georgia Institute of Technology and Emory School of Medicine, Atlanta, Georgia 30332, USA;
| | - Taisuke Kojima
- Walter H. Coulter Department of Biomedical Engineering, Georgia Institute of Technology and Emory School of Medicine, Atlanta, Georgia 30332, USA;
| | - Shuichi Takayama
- Walter H. Coulter Department of Biomedical Engineering, Georgia Institute of Technology and Emory School of Medicine, Atlanta, Georgia 30332, USA;
- Parker H. Petit Institute of Bioengineering and Bioscience, Georgia Institute of Technology, Atlanta, Georgia 30332, USA
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3
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Rajagopalan A, Venkatesh I, Aslam R, Kirchenbuechler D, Khanna S, Cimbaluk D, Kordower JH, Gupta V. SeqStain is an efficient method for multiplexed, spatialomic profiling of human and murine tissues. CELL REPORTS METHODS 2021; 1:100006. [PMID: 34766102 PMCID: PMC8579778 DOI: 10.1016/j.crmeth.2021.100006] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/30/2020] [Revised: 02/11/2021] [Accepted: 03/17/2021] [Indexed: 01/16/2023]
Abstract
Spatial organization of molecules and cells in complex tissue microenvironments provides essential organizational cues in health and disease. A significant need exists for improved visualization of these spatial relationships. Here, we describe a multiplex immunofluorescence imaging method, termed SeqStain, that uses fluorescent-DNA-labeled antibodies for immunofluorescent staining and nuclease treatment for de-staining that allows selective enzymatic removal of the fluorescent signal. SeqStain can be used with primary antibodies, secondary antibodies, and antibody fragments to efficiently analyze complex cells and tissues. Additionally, incorporation of specific endonuclease restriction sites in antibody labels allows for selective removal of fluorescent signals while retaining other signals that can serve as marks for subsequent analyses. The application of SeqStain on human kidney tissue provided a spatialomic profile of the organization of >25 markers in the kidney, highlighting it as a versatile, easy-to-use, and gentle new technique for spatialomic analyses of complex microenvironments.
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Affiliation(s)
- Anugraha Rajagopalan
- Drug Discovery Center, Department of Internal Medicine, Rush University Medical Center, Chicago, IL 60612, USA
- Department of Internal Medicine, Rush University Medical Center, Chicago, IL 60612, USA
| | - Ishwarya Venkatesh
- Drug Discovery Center, Department of Internal Medicine, Rush University Medical Center, Chicago, IL 60612, USA
- Department of Internal Medicine, Rush University Medical Center, Chicago, IL 60612, USA
| | - Rabail Aslam
- Drug Discovery Center, Department of Internal Medicine, Rush University Medical Center, Chicago, IL 60612, USA
- Department of Internal Medicine, Rush University Medical Center, Chicago, IL 60612, USA
| | - David Kirchenbuechler
- Center for Advanced Microscopy, Northwestern University Feinberg School of Medicine, Chicago, IL 60611, USA
| | - Shreyaa Khanna
- University of Illinois at Urbana-Champaign, Champaign, IL 61820, USA
| | - David Cimbaluk
- Department of Internal Medicine, Rush University Medical Center, Chicago, IL 60612, USA
- Department of Pathology, Rush University Medical Center, Chicago, IL 60612, USA
| | - Jeffrey H. Kordower
- Department of Neurological Sciences, Rush University Medical Center, Chicago, IL 60612, USA
| | - Vineet Gupta
- Drug Discovery Center, Department of Internal Medicine, Rush University Medical Center, Chicago, IL 60612, USA
- Department of Internal Medicine, Rush University Medical Center, Chicago, IL 60612, USA
- Division of Hematology, Oncology and Cell Therapy, Department of Internal Medicine, Rush University Medical Center, Chicago, IL 60612, USA
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4
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Direct monitoring of live human pluripotent stem cells by a highly selective pluripotency sensor. Bioorg Med Chem Lett 2020; 30:127347. [PMID: 32631546 DOI: 10.1016/j.bmcl.2020.127347] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2020] [Revised: 06/08/2020] [Accepted: 06/09/2020] [Indexed: 11/24/2022]
Abstract
Human pluripotent stem cells (hPSCs) are a useful cell source for regenerative medicine. Despite having a potential of hPSCs for cell-based therapy, there is a need for a selective human pluripotency sensor for monitoring of live hPSCs. Here, we report the discovery of a novel pluripotency sensor (SHI5) from BODIPY-based library by high-throughput cell-based screening and describe the use of SHI5 to identify and isolate human embryonic stem cells and human induced pluripotent stem cells. We demonstrate that SHI5-based assay can be applied to live cells that gain pluripotency in the reprogramming process without any effect on their viability. We also show that SHI5 is internalized through a clathrin-mediated endocytosis pathway. These findings suggest that SHI5 can be an attractive sensor for pluripotency cells during reprogramming. Taken together, SHI5-based screening for hPSCs opens probably unlimited possibilities of detection probe for hPSC therapy via assures their safety issue.
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Yamanishi C, Oliver CR, Kojima T, Takayama S. Stigmatic Microscopy Enables Low-Cost, 3D, Microscale Particle Imaging Velocimetry in Rehydrating Aqueous Two-Phase Systems. Front Chem 2019; 7:311. [PMID: 31179265 PMCID: PMC6538919 DOI: 10.3389/fchem.2019.00311] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2018] [Accepted: 04/18/2019] [Indexed: 11/13/2022] Open
Abstract
This paper describes the construction of a novel stigmatic microscope and image analysis algorithm to simultaneously analyze convective mixing both inside and outside of rehydrating μL-scale aqueous two-phase system (ATPS) droplets. Stigmatic microscopy is inexpensive and advantageous because it modifies the point-spread function of fluorescent particles to enable measurement of their 3D positions from single 2D images, without needing to take slices. In one application of the technique, the convection patterns captured clarify how different ATPS formulations succeed or fail to exclude cells for patterning. Particle flow traces reveal speed and directionality of circulation, indicating temporary eddies at the outer edge of the rehydrating droplet. In another application, the speed of circulation during rehydration was analyzed for different ATPS formulations and the results used to develop a new fast ELISA procedure. While this paper focuses on ATPS rehydration, the microscope and algorithm should be applicable to a broad range of microfluidic flows where microscale 3D convection is important.
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Affiliation(s)
- Cameron Yamanishi
- The Wallace H Coulter Department of Biomedical Engineering, Georgia Institute of Technology and Emory School of Medicine, Atlanta, GA, United States
- Department of Biomedical Engineering, University of Michigan, Ann Arbor, MI, United States
| | - C. Ryan Oliver
- Department of Biomedical Engineering, University of Michigan, Ann Arbor, MI, United States
- Department of Internal Medicine, University of Michigan, Ann Arbor, MI, United States
| | - Taisuke Kojima
- The Wallace H Coulter Department of Biomedical Engineering, Georgia Institute of Technology and Emory School of Medicine, Atlanta, GA, United States
| | - Shuichi Takayama
- The Wallace H Coulter Department of Biomedical Engineering, Georgia Institute of Technology and Emory School of Medicine, Atlanta, GA, United States
- Department of Biomedical Engineering, University of Michigan, Ann Arbor, MI, United States
- The Parker H Petit Institute for Bioengineering and Bioscience, Georgia Institute of Technology, Atlanta, GA, United States
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6
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Song Y, Kadiyala U, Weerappuli P, Valdez JJ, Yalavarthi S, Louttit C, Knight JS, Moon JJ, Weiss DS, VanEpps JS, Takayama S. Antimicrobial Microwebs of DNA-Histone Inspired from Neutrophil Extracellular Traps. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2019; 31:e1807436. [PMID: 30698844 PMCID: PMC6467213 DOI: 10.1002/adma.201807436] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/17/2018] [Revised: 01/16/2019] [Indexed: 05/07/2023]
Abstract
Neutrophil extracellular traps (NETs) are decondensed chromatin networks released by neutrophils that can trap and kill pathogens but can also paradoxically promote biofilms. The mechanism of NET functions remains ambiguous, at least in part, due to their complex and variable compositions. To unravel the antimicrobial performance of NETs, a minimalistic NET-like synthetic structure, termed "microwebs," is produced by the sonochemical complexation of DNA and histone. The prepared microwebs have structural similarity to NETs at the nanometer to micrometer dimensions but with well-defined molecular compositions. Microwebs prepared with different DNA to histone ratios show that microwebs trap pathogenic Escherichia coli in a manner similar to NETs when the zeta potential of the microwebs is positive. The DNA nanofiber networks and the bactericidal histone constituting the microwebs inhibit the growth of E. coli. Moreover, microwebs work synergistically with colistin sulfate, a common and a last-resort antibiotic, by targeting the cell envelope of pathogenic bacteria. The synthesis of microwebs enables mechanistic studies not possible with NETs, and it opens new possibilities for constructing biomimetic bacterial microenvironments to better understand and predict physiological pathogen responses.
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Affiliation(s)
- Yang Song
- Wallace H Coulter Department of Biomedical Engineering & Petit Institute for Bioengineering and Bioscience, Georgia Institute of Technology & Emory School of Medicine, Atlanta, GA, 30332, USA
| | - Usha Kadiyala
- Department of Emergency Medicine, Michigan Center for Integrative Research in Critical Care, Biointerfaces Institute, University of Michigan, Ann Arbor, MI, 48109, USA
| | - Priyan Weerappuli
- Department of Biomedical Engineering, University of Michigan, Ann Arbor, MI, 48109, USA
| | - Jordan J. Valdez
- Emory Antibiotic Resistance Center, Emory Vaccine Center, School of Medicine, Emory University, Atlanta, GA, 30307, USA
| | | | - Cameron Louttit
- Department of Biomedical Engineering, University of Michigan, Ann Arbor, MI, 48109, USA
| | - Jason S. Knight
- Division of Rheumatology, University of Michigan, Ann Arbor, MI, 48109, USA
| | - James J. Moon
- Department of Biomedical Engineering, University of Michigan, Ann Arbor, MI, 48109, USA
| | - David S. Weiss
- Emory Antibiotic Resistance Center, Emory Vaccine Center, School of Medicine, Emory University, Atlanta, GA, 30307, USA
| | - J. Scott VanEpps
- Department of Emergency Medicine, Michigan Center for Integrative Research in Critical Care, Biointerfaces Institute, University of Michigan, Ann Arbor, MI, 48109, USA
| | - Shuichi Takayama
- Wallace H Coulter Department of Biomedical Engineering & Petit Institute for Bioengineering and Bioscience, Georgia Institute of Technology & Emory School of Medicine, Atlanta, GA, 30332, USA
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7
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Song Y, Michaels TCT, Ma Q, Liu Z, Yuan H, Takayama S, Knowles TPJ, Shum HC. Budding-like division of all-aqueous emulsion droplets modulated by networks of protein nanofibrils. Nat Commun 2018; 9:2110. [PMID: 29844310 PMCID: PMC5974351 DOI: 10.1038/s41467-018-04510-3] [Citation(s) in RCA: 60] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2017] [Accepted: 04/30/2018] [Indexed: 01/01/2023] Open
Abstract
Networks of natural protein nanofibrils, such as cytoskeletal filaments, control the shape and the division of cells, yet mimicking this functionality in a synthetic setting has proved challenging. Here, we demonstrate that artificial networks of protein nanofibrils can induce controlled deformation and division of all-aqueous emulsion droplets with budding-like morphologies. We show that this process is driven by the difference in the immersional wetting energy of the nanofibril network, and that both the size and the number of the daughter droplets formed during division can be controlled by modulating the fibril concentration and the chemical properties of the fibril network. Our results demonstrate a route for achieving biomimetic division with synthetic self-assembling fibrils and offer an engineered approach to regulate the morphology of protein gels.
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Affiliation(s)
- Yang Song
- Department of Mechanical Engineering, The University of Hong Kong, Pokfulam, 999077, Hong Kong
- Wallace H. Coulter Department of Biomedical Engineering, Georgia Institute of Technology, Atlanta, GA, 30332, USA
| | - Thomas C T Michaels
- Department of Chemistry, University of Cambridge, Lensfield Road, Cambridge, CB2 1EW, UK
- Paulson School of Engineering and Applied Sciences, Harvard University, Cambridge, MA, 02138, USA
| | - Qingming Ma
- Department of Mechanical Engineering, The University of Hong Kong, Pokfulam, 999077, Hong Kong
- HKU-Shenzhen Institute of Research and Innovation (HKU-SIRI), 518000, Shenzhen, China
| | - Zhou Liu
- Department of Mechanical Engineering, The University of Hong Kong, Pokfulam, 999077, Hong Kong
- HKU-Shenzhen Institute of Research and Innovation (HKU-SIRI), 518000, Shenzhen, China
| | - Hao Yuan
- Department of Mechanical Engineering, The University of Hong Kong, Pokfulam, 999077, Hong Kong
- HKU-Shenzhen Institute of Research and Innovation (HKU-SIRI), 518000, Shenzhen, China
| | - Shuichi Takayama
- Wallace H. Coulter Department of Biomedical Engineering, Georgia Institute of Technology, Atlanta, GA, 30332, USA
| | - Tuomas P J Knowles
- Department of Chemistry, University of Cambridge, Lensfield Road, Cambridge, CB2 1EW, UK
- Cavendish Laboratory, Department of Physics, University of Cambridge, JJ Thomson Avenue, Cambridge, CB3 0HE, UK
| | - Ho Cheung Shum
- Department of Mechanical Engineering, The University of Hong Kong, Pokfulam, 999077, Hong Kong.
- HKU-Shenzhen Institute of Research and Innovation (HKU-SIRI), 518000, Shenzhen, China.
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8
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Luby CJ, Coughlin BP, Mace CR. Enrichment and Recovery of Mammalian Cells from Contaminated Cultures Using Aqueous Two-Phase Systems. Anal Chem 2018; 90:2103-2110. [PMID: 29286236 DOI: 10.1021/acs.analchem.7b04352] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
This Article describes a density-based method for removing contaminants, including microorganisms and nonviable cells, from mammalian cell cultures using an aqueous two-phase system (ATPS). The properties of a 7% w/w polyethylene glycol (PEG)-11% w/w Ficoll ATPS can be tuned to prepare a biocompatible system that removes contaminants with little to no adverse effects on the viability or growth of the cultured cells after treatment. This system can be used to enrich cell culture populations for viable cells and to reduce the number of microorganism contaminants in a culture, which increases the chances of subsequent antibiotic treatments being successful. We test the effectiveness of our method in model contaminated cultures of both adherent (HeLa) and suspension (HL-60 II) mammalian cells contaminated with bacteria (E. coli) and yeast (S. cerevisiae). An average of 70.2 ± 4.6% of HeLa cells added to the system are subsequently recovered, and 55.9 ± 2.1% of HL-60 II cells are recovered. After sedimenting to the interface of the ATPS, these cells have an average viability of 98.0 ± 0.2% and 95.3 ± 2.2%, respectively. By removing unwanted cells, desired cell populations can be recovered, and cultures that would otherwise need to be discarded can continue to be used.
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Affiliation(s)
- Christopher J Luby
- Department of Chemistry, Tufts University , 62 Talbot Avenue, Medford, Massachusetts 02155, United States
| | - Benjamin P Coughlin
- Department of Chemistry, Tufts University , 62 Talbot Avenue, Medford, Massachusetts 02155, United States
| | - Charles R Mace
- Department of Chemistry, Tufts University , 62 Talbot Avenue, Medford, Massachusetts 02155, United States
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9
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Li H, Brewer G, Ongo G, Normandeau F, Omeroglu A, Juncker D. Immunohistochemistry Microarrays. Anal Chem 2017; 89:8620-8625. [DOI: 10.1021/acs.analchem.7b00807] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Huiyan Li
- Biomedical
Engineering Department, ‡McGill University and Genome Quebec Innovation
Centre, §Department of Pathology, McGill University Health Centre, and ∥Department of
Neurology and Neurosurgery, McGill University, Montreal, Quebec H3A0G1, Canada
| | - Gabrielle Brewer
- Biomedical
Engineering Department, ‡McGill University and Genome Quebec Innovation
Centre, §Department of Pathology, McGill University Health Centre, and ∥Department of
Neurology and Neurosurgery, McGill University, Montreal, Quebec H3A0G1, Canada
| | - Grant Ongo
- Biomedical
Engineering Department, ‡McGill University and Genome Quebec Innovation
Centre, §Department of Pathology, McGill University Health Centre, and ∥Department of
Neurology and Neurosurgery, McGill University, Montreal, Quebec H3A0G1, Canada
| | - Frederic Normandeau
- Biomedical
Engineering Department, ‡McGill University and Genome Quebec Innovation
Centre, §Department of Pathology, McGill University Health Centre, and ∥Department of
Neurology and Neurosurgery, McGill University, Montreal, Quebec H3A0G1, Canada
| | - Atilla Omeroglu
- Biomedical
Engineering Department, ‡McGill University and Genome Quebec Innovation
Centre, §Department of Pathology, McGill University Health Centre, and ∥Department of
Neurology and Neurosurgery, McGill University, Montreal, Quebec H3A0G1, Canada
| | - David Juncker
- Biomedical
Engineering Department, ‡McGill University and Genome Quebec Innovation
Centre, §Department of Pathology, McGill University Health Centre, and ∥Department of
Neurology and Neurosurgery, McGill University, Montreal, Quebec H3A0G1, Canada
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Dixon AR, Bathany C, Tsuei M, White J, Barald KF, Takayama S. Recent developments in multiplexing techniques for immunohistochemistry. Expert Rev Mol Diagn 2015; 15:1171-86. [PMID: 26289603 PMCID: PMC4810438 DOI: 10.1586/14737159.2015.1069182] [Citation(s) in RCA: 83] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
Methods to detect immunolabeled molecules at increasingly higher resolutions, even when present at low levels, are revolutionizing immunohistochemistry (IHC). These technologies can be valuable for the management and examination of rare patient tissue specimens, and for improved accuracy of early disease detection. The purpose of this article is to highlight recent multiplexing methods that are candidates for more prevalent use in clinical research and potential translation to the clinic. Multiplex IHC methods, which permit identification of at least 3 and up to 30 discrete antigens, have been divided into whole-section staining and spatially-patterned staining categories. Associated signal enhancement technologies that can enhance performance and throughput of multiplex IHC assays are also discussed. Each multiplex IHC technique, detailed herein, is associated with several advantages as well as tradeoffs that must be taken into consideration for proper evaluation and use of the methods.
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Affiliation(s)
- Angela R Dixon
- Biomedical Engineering Department, College of Engineering, University of Michigan, Ann Arbor, MI 48109, USA
- Cell and Developmental Biology Department, Medical School, University of Michigan, Ann Arbor, MI 48109, USA
| | - Cédric Bathany
- Biomedical Engineering Department, College of Engineering, University of Michigan, Ann Arbor, MI 48109, USA
- Department of Biomedical Engineering, School of Life Sciences, Ulsan National Institute of Science and Technology (UNIST), 100 Banyeon-ri, Eonyang-eup, Ulju-gun, Ulsan 689-798, Republic of Korea
| | - Michael Tsuei
- Biomedical Engineering Department, College of Engineering, University of Michigan, Ann Arbor, MI 48109, USA
| | - Joshua White
- Biomedical Engineering Department, College of Engineering, University of Michigan, Ann Arbor, MI 48109, USA
| | - Kate F Barald
- Biomedical Engineering Department, College of Engineering, University of Michigan, Ann Arbor, MI 48109, USA
- Cell and Developmental Biology Department, Medical School, University of Michigan, Ann Arbor, MI 48109, USA
| | - Shuichi Takayama
- Biomedical Engineering Department, College of Engineering, University of Michigan, Ann Arbor, MI 48109, USA
- Department of Macromolecular Science and Engineering, College of Engineering, University of Michigan, Ann Arbor, Michigan 48109, USA
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11
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Lee SY, Jungbauer A. Editorial: Methods and Advances - Biotech progress for science and our daily lives. Biotechnol J 2015; 10:3-4. [DOI: 10.1002/biot.201400842] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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