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Affiliation(s)
- Peng Shi
- Department of Biomedical Engineering The Pennsylvania State University University Park PA 16802 USA
| | - Yong Wang
- Department of Biomedical Engineering The Pennsylvania State University University Park PA 16802 USA
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2
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Shi P, Wang Y. Synthetic DNA for Cell-Surface Engineering. Angew Chem Int Ed Engl 2021; 60:11580-11591. [PMID: 33006229 DOI: 10.1002/anie.202010278] [Citation(s) in RCA: 29] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2020] [Revised: 09/29/2020] [Indexed: 12/14/2022]
Abstract
The cell membrane is not only a physical barrier, but also a functional organelle that regulates the communication between a cell and its environment. The ability to functionalize the cell membrane with synthetic molecules or nanostructures would advance cellular functions beyond what evolution has provided. The aim of this Minireview is to introduce recent progress in using synthetic DNA and DNA-based nanostructures for cell-surface engineering. We first introduce chemical conjugation and physical binding methods for monovalent and polyvalent surface engineering. We then introduce the application of these methods for either the promotion or inhibition of cell-environment communication in numerous applications, including the promotion of cell-cell recognition, regulation of intracellular pathways, protection of therapeutic cells, and sensing of the intracellular and extracellular microenvironments. Lastly, we summarize current challenges existing in this area and potential solutions to solve these challenges.
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Affiliation(s)
- Peng Shi
- Department of Biomedical Engineering, The Pennsylvania State University, University Park, PA, 16802, USA
| | - Yong Wang
- Department of Biomedical Engineering, The Pennsylvania State University, University Park, PA, 16802, USA
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3
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Miller MA, Sletten EM. Perfluorocarbons in Chemical Biology. Chembiochem 2020; 21:3451-3462. [PMID: 32628804 PMCID: PMC7736518 DOI: 10.1002/cbic.202000297] [Citation(s) in RCA: 38] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2020] [Revised: 07/03/2020] [Indexed: 01/10/2023]
Abstract
Perfluorocarbons, saturated carbon chains in which all the hydrogen atoms are replaced with fluorine, form a separate phase from both organic and aqueous solutions. Though perfluorinated compounds are not found in living systems, they can be used to modify biomolecules to confer orthogonal behavior within natural systems, such as improved stability, engineered assembly, and cell-permeability. Perfluorinated groups also provide handles for purification, mass spectrometry, and 19 F NMR studies in complex environments. Herein, we describe how the unique properties of perfluorocarbons have been employed to understand and manipulate biological systems.
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Affiliation(s)
- Margeaux A Miller
- Department of Chemistry and Biochemistry, University of California, Los Angeles, 607 Charles E Young Dr E, Los Angeles, CA, 90095, USA
| | - Ellen M Sletten
- Department of Chemistry and Biochemistry, University of California, Los Angeles, 607 Charles E Young Dr E, Los Angeles, CA, 90095, USA
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Csibra E, Renders M, Pinheiro VB. Bacterial Cell Display as a Robust and Versatile Platform for Engineering Low-Affinity Ligands and Enzymes. Chembiochem 2020; 21:2844-2853. [PMID: 32413179 PMCID: PMC7586821 DOI: 10.1002/cbic.202000203] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2020] [Revised: 05/11/2020] [Indexed: 12/31/2022]
Abstract
Directed evolution has been remarkably successful at expanding the chemical and functional boundaries of biology. That progress is heavily dependent on the robustness and flexibility of the available selection platforms, given the significant cost to (re)develop a given platform to target a new desired function. Bacterial cell display has a significant track record as a viable strategy for the engineering of mesophilic enzymes, as enzyme activity can be probed directly and free from interference from the cellular milieu, but its adoption has lagged behind other display-based methods. Herein, we report the development of SNAP as a quantitative reporter for bacterial cell display, which enables fast troubleshooting and the systematic development of the display-based selection platform, thus improving its robustness. In addition, we demonstrate that even weak interactions between displayed proteins and nucleic acids can be harnessed for the specific labelling of bacterial cells, allowing functional characterisation of DNA binding proteins and enzymes, thus making it a highly flexible platform for these biochemical functions. Together, this establishes bacterial display as a robust and flexible platform, ideally suited for the systematic engineering of ligands and enzymes needed for XNA molecular biology.
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Affiliation(s)
- Eszter Csibra
- University College LondonDepartment of Structural and Molecular BiologyGower StreetLondonWC1E 6BTUK
- Current address: Imperial College LondonExhibition RoadLondonSW7 2AZUK
| | - Marleen Renders
- Rega Institute for Medical ResearchKU LeuvenHerestraat, 49 box 10413000LeuvenBelgium
- Current address: Touchlight Genetics Ltd. Morelands & Riverdale BuildingsLower Sunbury RoadHamptonTW12 2ERUK
| | - Vitor B. Pinheiro
- University College LondonDepartment of Structural and Molecular BiologyGower StreetLondonWC1E 6BTUK
- Rega Institute for Medical ResearchKU LeuvenHerestraat, 49 box 10413000LeuvenBelgium
- Institute of Structural and Molecular BiologyBirkbeck CollegeUniversity of LondonMalet StreetLondonWC1E 7HXUK
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5
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Shi P, Wang X, Davis B, Coyne J, Dong C, Reynolds J, Wang Y. In Situ Synthesis of an Aptamer-Based Polyvalent Antibody Mimic on the Cell Surface for Enhanced Interactions between Immune and Cancer Cells. Angew Chem Int Ed Engl 2020; 59:11892-11897. [PMID: 32307868 DOI: 10.1002/anie.202004206] [Citation(s) in RCA: 45] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2020] [Indexed: 01/22/2023]
Abstract
An ability to promote therapeutic immune cells to recognize cancer cells is important for the success of cell-based cancer immunotherapy. We present a synthetic method for functionalizing the surface of natural killer (NK) cells with a supramolecular aptamer-based polyvalent antibody mimic (PAM). The PAM is synthesized on the cell surface through nucleic acid assembly and hybridization. The data show that PAM has superiority over its monovalent counterpart in powering NKs to bind to cancer cells, and that PAM-engineered NK cells exhibit the capability of killing cancer cells more effectively. Notably, aptamers can, in principle, be discovered against any cell receptors; moreover, the aptamers can be replaced by any other ligands when developing a PAM. Thus, this work has successfully demonstrated a technology platform for promoting interactions between immune and cancer cells.
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Affiliation(s)
- Peng Shi
- Department of Biomedical Engineering, The Pennsylvania State University, University Park, PA, 16802, USA
| | - Xuelin Wang
- Department of Biomedical Engineering, The Pennsylvania State University, University Park, PA, 16802, USA
| | - Brandon Davis
- Department of Biomedical Engineering, The Pennsylvania State University, University Park, PA, 16802, USA
| | - James Coyne
- Department of Biomedical Engineering, The Pennsylvania State University, University Park, PA, 16802, USA
| | - Cheng Dong
- Department of Biomedical Engineering, The Pennsylvania State University, University Park, PA, 16802, USA
| | - Joshua Reynolds
- Department of Biomedical Engineering, The Pennsylvania State University, University Park, PA, 16802, USA
| | - Yong Wang
- Department of Biomedical Engineering, The Pennsylvania State University, University Park, PA, 16802, USA
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6
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Shi P, Wang X, Davis B, Coyne J, Dong C, Reynolds J, Wang Y. In Situ Synthesis of an Aptamer‐Based Polyvalent Antibody Mimic on the Cell Surface for Enhanced Interactions between Immune and Cancer Cells. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.202004206] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Peng Shi
- Department of Biomedical Engineering The Pennsylvania State University University Park PA 16802 USA
| | - Xuelin Wang
- Department of Biomedical Engineering The Pennsylvania State University University Park PA 16802 USA
| | - Brandon Davis
- Department of Biomedical Engineering The Pennsylvania State University University Park PA 16802 USA
| | - James Coyne
- Department of Biomedical Engineering The Pennsylvania State University University Park PA 16802 USA
| | - Cheng Dong
- Department of Biomedical Engineering The Pennsylvania State University University Park PA 16802 USA
| | - Joshua Reynolds
- Department of Biomedical Engineering The Pennsylvania State University University Park PA 16802 USA
| | - Yong Wang
- Department of Biomedical Engineering The Pennsylvania State University University Park PA 16802 USA
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7
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Libby ARG, Briers D, Haghighi I, Joy DA, Conklin BR, Belta C, McDevitt TC. Automated Design of Pluripotent Stem Cell Self-Organization. Cell Syst 2019; 9:483-495.e10. [PMID: 31759947 PMCID: PMC7089762 DOI: 10.1016/j.cels.2019.10.008] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2019] [Revised: 07/17/2019] [Accepted: 10/23/2019] [Indexed: 11/20/2022]
Abstract
Human pluripotent stem cells (hPSCs) have the intrinsic ability to self-organize into complex multicellular organoids that recapitulate many aspects of tissue development. However, robustly directing morphogenesis of hPSC-derived organoids requires novel approaches to accurately control self-directed pattern formation. Here, we combined genetic engineering with computational modeling, machine learning, and mathematical pattern optimization to create a data-driven approach to control hPSC self-organization by knock down of genes previously shown to affect stem cell colony organization, CDH1 and ROCK1. Computational replication of the in vitro system in silico using an extended cellular Potts model enabled machine learning-driven optimization of parameters that yielded emergence of desired patterns. Furthermore, in vitro the predicted experimental parameters quantitatively recapitulated the in silico patterns. These results demonstrate that morphogenic dynamics can be accurately predicted through model-driven exploration of hPSC behaviors via machine learning, thereby enabling spatial control of multicellular patterning to engineer human organoids and tissues. A record of this paper's Transparent Peer Review process is included in the Supplemental Information.
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Affiliation(s)
- Ashley R G Libby
- Developmental and Stem Cell Biology PhD Program, University of California, San Francisco, San Francisco, CA, USA; Gladstone Institute of Cardiovascular Disease, Gladstone Institutes, San Francisco, CA, USA
| | | | - Iman Haghighi
- Systems Engineering Department at Boston University, Boston, MA, USA
| | - David A Joy
- Gladstone Institute of Cardiovascular Disease, Gladstone Institutes, San Francisco, CA, USA; UC Berkeley-UC San Francisco Bioengineering Graduate Program, San Francisco, CA, USA
| | - Bruce R Conklin
- Gladstone Institute of Cardiovascular Disease, Gladstone Institutes, San Francisco, CA, USA; Departments of Medicine, Pharmacology, and Ophthalmology, University of California, San Francisco, San Francisco, CA, USA
| | - Calin Belta
- Systems Engineering Department at Boston University, Boston, MA, USA.
| | - Todd C McDevitt
- Gladstone Institute of Cardiovascular Disease, Gladstone Institutes, San Francisco, CA, USA; Department of Bioengineering and Therapeutic Sciences, University of California, San Francisco, San Francisco, CA, USA.
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8
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Liszczak G, Muir TW. Barcoding mit Nukleinsäuren: Anwendung der DNA‐Sequenzierung als molekulares Zählwerk. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201808956] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Glen Liszczak
- Department of ChemistryPrinceton University Princeton NJ 08544 USA
- Aktuelle Adresse: Department of BiochemistryUT Southwestern Medical Center Dallas TX 75390 USA
| | - Tom W. Muir
- Department of ChemistryPrinceton University Princeton NJ 08544 USA
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9
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Liszczak G, Muir TW. Nucleic Acid-Barcoding Technologies: Converting DNA Sequencing into a Broad-Spectrum Molecular Counter. Angew Chem Int Ed Engl 2019; 58:4144-4162. [PMID: 30153374 DOI: 10.1002/anie.201808956] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2018] [Indexed: 12/17/2022]
Abstract
The emergence of high-throughput DNA sequencing technologies sparked a revolution in the field of genomics that has rippled into many branches of the life and physical sciences. The remarkable sensitivity, specificity, throughput, and multiplexing capacity that are inherent to parallel DNA sequencing have since motivated its use as a broad-spectrum molecular counter. A key aspect of extrapolating DNA sequencing to non-traditional applications is the need to append nucleic-acid barcodes to entities of interest. In this review, we describe the chemical and biochemical approaches that have enabled nucleic-acid barcoding of proteinaceous and non-proteinaceous materials and provide examples of downstream technologies that have been made possible by DNA-encoded molecules. As commercially available high-throughput sequencers were first released less than 15 years ago, we believe related applications will continue to mature and close by proposing new frontiers to support this assertion.
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Affiliation(s)
- Glen Liszczak
- Department of Chemistry, Princeton University, Princeton, NJ, 08544, USA.,Present address: Department of Biochemistry, UT Southwestern Medical Center, Dallas, TX, 75390, USA
| | - Tom W Muir
- Department of Chemistry, Princeton University, Princeton, NJ, 08544, USA
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10
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Hu P, Feng T, Yeung CC, Koo CK, Lau KC, Lam MHW. A Photo-Triggered Traceless Staudinger-Bertozzi Ligation Reaction. Chemistry 2016; 22:11537-42. [DOI: 10.1002/chem.201601807] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2016] [Indexed: 12/26/2022]
Affiliation(s)
- Peng Hu
- Department of Chemistry and Biology; City University of Hong Kong; 83 Tat Chee Avenue Hong Kong SAR China
| | - Tianshi Feng
- Department of Chemistry and Biology; City University of Hong Kong; 83 Tat Chee Avenue Hong Kong SAR China
- Advanced Laboratory for Environmental Research & Technology; USTC-CityU Suzhou China
- CAS Key Laboratory of Soft Matter Chemistry; Department of Polymer Science and Engineering; University of Science and Technology of China, Hefei; Anhui 230026 China
| | - Chi-Chung Yeung
- Department of Chemistry and Biology; City University of Hong Kong; 83 Tat Chee Avenue Hong Kong SAR China
| | - Chi-Kin Koo
- Department of Chemistry and Biology; City University of Hong Kong; 83 Tat Chee Avenue Hong Kong SAR China
| | - Kai-Chung Lau
- Department of Chemistry and Biology; City University of Hong Kong; 83 Tat Chee Avenue Hong Kong SAR China
| | - Michael H. W. Lam
- Department of Chemistry and Biology; City University of Hong Kong; 83 Tat Chee Avenue Hong Kong SAR China
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11
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Custódio CA, Mano JF. Cell surface engineering to control cellular interactions. CHEMNANOMAT : CHEMISTRY OF NANOMATERIALS FOR ENERGY, BIOLOGY AND MORE 2016; 2:376-384. [PMID: 30842920 PMCID: PMC6398572 DOI: 10.1002/cnma.201600047] [Citation(s) in RCA: 42] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
Cell surface composition determines all interactions of the cell with is environment, thus cell functions such as adhesion, migration and cell-cell interactions are likely to be controlled by engineering and manipulating cell membrane. Cell membranes present a rich repertoire of molecules, therefore a versatile ground for modification. However the complex and dynamic nature of the cell surface is also a major challenge for cell surface engineering that should also involve strategies compatible with cell viability. Cell surface engineering by selective chemical reactions or by the introduction of exogenous targeting ligands can be powerful tools for engineering novel interactions and control cell function. In addition to chemical conjugation and modification of functional groups, ligands of interest to modify the surface of cells include recombinant proteins, liposomes or nanoparticles. Here, we review recent efforts to perform changes to cell surface composition. We focus on the engineering of the cell surface with biological, chemical or physical methods to modulate cell functions and control cell-cell and cell-microenvironment interactions. Potential applications of cell surface engineering are also stated.
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Affiliation(s)
- Catarina A Custódio
- 3B's Research Group - Biomaterials, Biodegradables and Biomimetics, University of Minho, Headquarters of the European Institute of Excellence of Tissue Engineering and Regenerative Medicine, Avepark - Parque de Ciência e Tecnologia, Zona Industrial da Gandra, 4805-017 Barco GMR, Portugal
- ICVS/3B's PT Government Associated Laboratory, Braga/Guimarães, Portugal
| | - João F Mano
- 3B's Research Group - Biomaterials, Biodegradables and Biomimetics, University of Minho, Headquarters of the European Institute of Excellence of Tissue Engineering and Regenerative Medicine, Avepark - Parque de Ciência e Tecnologia, Zona Industrial da Gandra, 4805-017 Barco GMR, Portugal
- ICVS/3B's PT Government Associated Laboratory, Braga/Guimarães, Portugal
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12
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Affiliation(s)
- Yuhe R. Yang
- Center for Molecular Design
and Biomimetics, and Department of Chemistry and Biochemistry, Arizona State University, Tempe, Arizona 85287, United States
| | - Yan Liu
- Center for Molecular Design
and Biomimetics, and Department of Chemistry and Biochemistry, Arizona State University, Tempe, Arizona 85287, United States
| | - Hao Yan
- Center for Molecular Design
and Biomimetics, and Department of Chemistry and Biochemistry, Arizona State University, Tempe, Arizona 85287, United States
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13
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Gabrielse K, Gangar A, Kumar N, Lee JC, Fegan A, Shen JJ, Li Q, Vallera D, Wagner CR. Reversible Re-programing of Cell-Cell Interactions. Angew Chem Int Ed Engl 2014. [DOI: 10.1002/ange.201310645] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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14
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Gabrielse K, Gangar A, Kumar N, Lee JC, Fegan A, Shen JJ, Li Q, Vallera D, Wagner CR. Reversible Re‐programing of Cell–Cell Interactions. Angew Chem Int Ed Engl 2014; 53:5112-6. [DOI: 10.1002/anie.201310645] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2013] [Revised: 02/17/2014] [Indexed: 01/15/2023]
Affiliation(s)
- Kari Gabrielse
- Department of Medicinal Chemistry, University of Minnesota, 308 Harvard Street SE, Minneapolis, MN 55455 (USA)
| | - Amit Gangar
- Department of Medicinal Chemistry, University of Minnesota, 308 Harvard Street SE, Minneapolis, MN 55455 (USA)
| | - Nigam Kumar
- Department of Medicinal Chemistry, University of Minnesota, 308 Harvard Street SE, Minneapolis, MN 55455 (USA)
| | - Jae Chul Lee
- Department of Medicinal Chemistry, University of Minnesota, 308 Harvard Street SE, Minneapolis, MN 55455 (USA)
| | - Adrian Fegan
- Department of Medicinal Chemistry, University of Minnesota, 308 Harvard Street SE, Minneapolis, MN 55455 (USA)
| | - Jing Jing Shen
- Department of Medicinal Chemistry, University of Minnesota, 308 Harvard Street SE, Minneapolis, MN 55455 (USA)
| | - Qing Li
- Department of Medicinal Chemistry, University of Minnesota, 308 Harvard Street SE, Minneapolis, MN 55455 (USA)
| | - Daniel Vallera
- Department of Therapeutic Radiology, University of Minnesota (USA)
| | - Carston R. Wagner
- Department of Medicinal Chemistry, University of Minnesota, 308 Harvard Street SE, Minneapolis, MN 55455 (USA)
- Department of Chemistry, University of Minnesota (USA)
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Niemeyer CM. Semisynthetic DNA-protein conjugates for biosensing and nanofabrication. Angew Chem Int Ed Engl 2010; 49:1200-16. [PMID: 20091721 DOI: 10.1002/anie.200904930] [Citation(s) in RCA: 300] [Impact Index Per Article: 21.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Abstract
Conjugation with artificial nucleic acids allows proteins to be modified with a synthetically accessible, robust tag. This attachment is addressable in a highly specific manner by means of molecular recognition events, such as Watson-Crick hybridization. Such DNA-protein conjugates, with their combined properties, have a broad range of applications, such as in high-performance biomedical diagnostic assays, fundamental research on molecular recognition, and the synthesis of DNA nanostructures. This Review surveys current approaches to generate DNA-protein conjugates as well as recent advances in their applications. For example, DNA-protein conjugates have been assembled into model systems for the investigation of catalytic cascade reactions and light-harvesting devices. Such hybrid conjugates are also used for the biofunctionalization of planar surfaces for micro- and nanoarrays, and for decorating inorganic nanoparticles to enable applications in sensing, materials science, and catalysis.
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Affiliation(s)
- Christof M Niemeyer
- Technische Universität Dortmund, Fakultät Chemie, Biologisch-Chemische Mikrostrukturtechnik, Otto-Hahn Strasse 6, 44227 Dortmund, Germany.
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Niemeyer C. Halbsynthetische DNA-Protein-Konjugate für Biosensorik und Nanofabrikation. Angew Chem Int Ed Engl 2010. [DOI: 10.1002/ange.200904930] [Citation(s) in RCA: 75] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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17
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Serwa R, Wilkening I, Del Signore G, Mühlberg M, Claußnitzer I, Weise C, Gerrits M, Hackenberger C. Chemoselektive Staudinger-Phosphit-Reaktion von Aziden für die Phosphorylierung von Proteinen. Angew Chem Int Ed Engl 2009. [DOI: 10.1002/ange.200902118] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
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18
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Serwa R, Wilkening I, Del Signore G, Mühlberg M, Claußnitzer I, Weise C, Gerrits M, Hackenberger C. Chemoselective Staudinger-Phosphite Reaction of Azides for the Phosphorylation of Proteins. Angew Chem Int Ed Engl 2009; 48:8234-9. [DOI: 10.1002/anie.200902118] [Citation(s) in RCA: 115] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
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Hackenberger C, Schwarzer D. Chemoselektive Ligations- und Modifikationsstrategien für Peptide und Proteine. Angew Chem Int Ed Engl 2008. [DOI: 10.1002/ange.200801313] [Citation(s) in RCA: 204] [Impact Index Per Article: 12.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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20
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Hackenberger C, Schwarzer D. Chemoselective Ligation and Modification Strategies for Peptides and Proteins. Angew Chem Int Ed Engl 2008; 47:10030-74. [DOI: 10.1002/anie.200801313] [Citation(s) in RCA: 651] [Impact Index Per Article: 40.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
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21
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Hsiao S, Crow A, Lam W, Bertozzi C, Fletcher D, Francis M. DNA-Coated AFM Cantilevers for the Investigation of Cell Adhesion and the Patterning of Live Cells. Angew Chem Int Ed Engl 2008. [DOI: 10.1002/ange.200802525] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
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22
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Hsiao SC, Crow AK, Lam WA, Bertozzi CR, Fletcher DA, Francis MB. DNA-coated AFM cantilevers for the investigation of cell adhesion and the patterning of live cells. Angew Chem Int Ed Engl 2008; 47:8473-7. [PMID: 18798192 PMCID: PMC2748828 DOI: 10.1002/anie.200802525] [Citation(s) in RCA: 54] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Abstract
Measurement of receptor adhesion strength requires the precise manipulation of single cells on a contact surface. To attach live cells to a moveable probe, DNA sequences complementary to strands displayed on the plasma membrane are introduced onto AFM cantilevers (see picture, bp=base pairs). The strength of the resulting linkages can be tuned by varying the length of DNA strands, allowing for controlled transport of the cells
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Affiliation(s)
- Sonny C Hsiao
- Department of Chemistry, University of California, Berkeley
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23
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Wolfbeis OS. The Click Reaction in the Luminescent Probing of Metal Ions, and Its Implications on Biolabeling Techniques. Angew Chem Int Ed Engl 2007; 46:2980-2. [PMID: 17340653 DOI: 10.1002/anie.200604897] [Citation(s) in RCA: 52] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Otto S Wolfbeis
- Institute of Analytical Chemistry, Chemo- and Biosensors, University of Regensburg, 93040 Regensburg, Germany.
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Wolfbeis O. Die Klick-Reaktion in der katalytischen lumineszenten Sensorik von Metallionen und ihre Auswirkungen auf die Biomarkierung. Angew Chem Int Ed Engl 2007. [DOI: 10.1002/ange.200604897] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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