1
|
Chen Y, Shokouhi AR, Voelcker NH, Elnathan R. Nanoinjection: A Platform for Innovation in Ex Vivo Cell Engineering. Acc Chem Res 2024; 57:1722-1735. [PMID: 38819691 PMCID: PMC11191407 DOI: 10.1021/acs.accounts.4c00190] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2024] [Revised: 05/20/2024] [Accepted: 05/21/2024] [Indexed: 06/01/2024]
Abstract
ConspectusIn human cells, intracellular access and therapeutic cargo transport, including gene-editing tools (e.g., CRISPR-Cas9 and transposons), nucleic acids (e.g., DNA, mRNA, and siRNA), peptides, and proteins (e.g., enzymes and antibodies), are tightly constrained to ensure healthy cell function and behavior. This principle is exemplified in the delivery mechanisms of chimeric antigen receptor (CAR)-T cells for ex-vivo immunotherapy. In particular, the clinical success of CAR-T cells has established a new standard of care by curing previously incurable blood cancers. The approach involves the delivery, typically via the use of electroporation (EP) and lentivirus, of therapeutic CAR genes into a patient's own T cells, which are then engineered to express CARs that target and combat their blood cancer. But the key difficulty lies in genetically manipulating these cells without causing irreversible damage or loss of function─all the while minimizing complexities of manufacturing, safety concerns, and costs, and ensuring the efficacy of the final CAR-T cell product.Nanoinjection─the process of intracellular delivery using nanoneedles (NNs)─is an emerging physical delivery route that efficiently negotiates the plasma membrane of many cell types, including primary human T cells. It occurs with minimal perturbation, invasiveness, and toxicity, with high efficiency and throughput at high spatial and temporal resolutions. Nanoinjection promises greatly improved delivery of a broad range of therapeutic cargos with little or no damage to those cargos. A nanoinjection platform allows these cargos to function in the intracellular space as desired. The adaptability of nanoinjection platforms is now bringing major advantages in immunomodulation, mechanotransduction, sampling of cell states (nanobiopsy), controlled intracellular interrogation, and the primary focus of this account─intracellular delivery and its applications in ex vivo cell engineering.Mechanical nanoinjection typically exerts direct mechanical force on the cell membrane, offering a straightforward route to improve membrane perturbation by the NNs and subsequent transport of genetic cargo into targeted cell type (adherent or suspension cells). By contrast, electroactive nanoinjection is controlled by coupling NNs with an electric field─a new route for activating electroporation (EP) at the nanoscale─allowing a dramatic reduction of the applied voltage to a cell and so minimizing post-EP damage to cells and cargo, and overcoming many of the limitations of conventional bulk EP. Nanoinjection transcends mere technique; it is an approach to cell engineering ex vivo, offering the potential to endow cells with new, powerful features such as generating chimeric antigen receptor (CAR)-T cells for future CAR-T cell technologies.We first discuss the manufacturing of NN devices (Section 2), then delve into nanoinjection-mediated cell engineering (Section 3), nanoinjection mechanisms and interfacing methodologies (Section 4), and emerging applications in using nanoinjection to create functional CAR-T cells (Section 5).
Collapse
Affiliation(s)
- Yaping Chen
- Oujiang
Laboratory (Zhejiang Lab for Regenerative Medicine, Vision and Brain
Health), Institute of Aging, Key Laboratory of Alzheimer’s
Disease of Zhejiang Province, Zhejiang Provincial Clinical Research
Center for Mental Disorders, The Affiliated Wenzhou Kangning Hospital, Wenzhou Medical University, Wenzhou, Zhejiang 325035, P.R. China
- Monash
Institute of Pharmaceutical Sciences, Monash
University, 381 Royal Parade, Parkville, VIC 3052, Australia
| | - Ali-Reza Shokouhi
- Monash
Institute of Pharmaceutical Sciences, Monash
University, 381 Royal Parade, Parkville, VIC 3052, Australia
| | - Nicolas H. Voelcker
- Monash
Institute of Pharmaceutical Sciences, Monash
University, 381 Royal Parade, Parkville, VIC 3052, Australia
- Melbourne
Centre for Nanofabrication, Victorian Node of the Australian National
Fabrication Facility, 151 Wellington Road, Clayton, VIC 3168, Australia
- Department
of Materials Science and Engineering, Monash
University, 22 Alliance Lane, Clayton, VIC 3168, Australia
| | - Roey Elnathan
- Monash
Institute of Pharmaceutical Sciences, Monash
University, 381 Royal Parade, Parkville, VIC 3052, Australia
- Melbourne
Centre for Nanofabrication, Victorian Node of the Australian National
Fabrication Facility, 151 Wellington Road, Clayton, VIC 3168, Australia
- School
of Medicine, Faculty of Health, Deakin University, Waurn Ponds, VIC 3216, Australia
- Institute
for Frontier Materials, Deakin University, Geelong Waurn Ponds campus, VIC 3216, Australia
- The
Institute for Mental and Physical Health and Clinical Translation,
School of Medicine, Deakin University, Geelong Waurn Ponds Campus, Melbourne, VIC 3216, Australia
| |
Collapse
|
2
|
Chiappini C, Chen Y, Aslanoglou S, Mariano A, Mollo V, Mu H, De Rosa E, He G, Tasciotti E, Xie X, Santoro F, Zhao W, Voelcker NH, Elnathan R. Tutorial: using nanoneedles for intracellular delivery. Nat Protoc 2021; 16:4539-4563. [PMID: 34426708 DOI: 10.1038/s41596-021-00600-7] [Citation(s) in RCA: 38] [Impact Index Per Article: 12.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2021] [Accepted: 06/30/2021] [Indexed: 02/08/2023]
Abstract
Intracellular delivery of advanced therapeutics, including biologicals and supramolecular agents, is complex because of the natural biological barriers that have evolved to protect the cell. Efficient delivery of therapeutic nucleic acids, proteins, peptides and nanoparticles is crucial for clinical adoption of emerging technologies that can benefit disease treatment through gene and cell therapy. Nanoneedles are arrays of vertical high-aspect-ratio nanostructures that can precisely manipulate complex processes at the cell interface, enabling effective intracellular delivery. This emerging technology has already enabled the development of efficient and non-destructive routes for direct access to intracellular environments and delivery of cell-impermeant payloads. However, successful implementation of this technology requires knowledge of several scientific fields, making it complex to access and adopt by researchers who are not directly involved in developing nanoneedle platforms. This presents an obstacle to the widespread adoption of nanoneedle technologies for drug delivery. This tutorial aims to equip researchers with the knowledge required to develop a nanoinjection workflow. It discusses the selection of nanoneedle devices, approaches for cargo loading and strategies for interfacing to biological systems and summarises an array of bioassays that can be used to evaluate the efficacy of intracellular delivery.
Collapse
Affiliation(s)
- Ciro Chiappini
- Centre for Craniofacial and Regenerative Biology, King's College London, London, UK.
- London Centre for Nanotechnology, King's College London, London, UK.
| | - Yaping Chen
- Monash Institute of Pharmaceutical Sciences, Monash University, Parkville, Victoria, Australia
- Melbourne Centre for Nanofabrication, Victorian Node of the Australian National Fabrication Facility, Clayton, Victoria, Australia
| | - Stella Aslanoglou
- Monash Institute of Pharmaceutical Sciences, Monash University, Parkville, Victoria, Australia
- Melbourne Centre for Nanofabrication, Victorian Node of the Australian National Fabrication Facility, Clayton, Victoria, Australia
- CSIRO Manufacturing, Clayton, Victoria, Australia
| | - Anna Mariano
- Center for Advanced Biomaterials for Healthcare, Istituto Italiano di Tecnologia, Naples, Italy
| | - Valentina Mollo
- Center for Advanced Biomaterials for Healthcare, Istituto Italiano di Tecnologia, Naples, Italy
| | - Huanwen Mu
- School of Chemical and Biomedical Engineering, Nanyang Technological University, Singapore, Singapore
| | - Enrica De Rosa
- Center for Musculoskeletal Regeneration, Orthopedics & Sports Medicine, Houston Methodist Research Institute, Houston, TX, USA
| | - Gen He
- State Key Laboratory of Optoelectronic Materials and Technologies, Guangdong Province Key Laboratory of Display Material and Technology, School of Electronics and Information Technology, Sun Yat-sen University, Guangzhou, China
| | - Ennio Tasciotti
- IRCCS San Raffaele Pisana Hospital, Rome, Italy
- San Raffaele University, Rome, Italy
- Sclavo Pharma, Siena, Italy
| | - Xi Xie
- State Key Laboratory of Optoelectronic Materials and Technologies, Guangdong Province Key Laboratory of Display Material and Technology, School of Electronics and Information Technology, Sun Yat-sen University, Guangzhou, China.
| | - Francesca Santoro
- Center for Advanced Biomaterials for Healthcare, Istituto Italiano di Tecnologia, Naples, Italy.
| | - Wenting Zhao
- School of Chemical and Biomedical Engineering, Nanyang Technological University, Singapore, Singapore.
| | - Nicolas H Voelcker
- Monash Institute of Pharmaceutical Sciences, Monash University, Parkville, Victoria, Australia.
- Melbourne Centre for Nanofabrication, Victorian Node of the Australian National Fabrication Facility, Clayton, Victoria, Australia.
- CSIRO Manufacturing, Clayton, Victoria, Australia.
- Department of Materials Science and Engineering, Monash University, Clayton, Victoria, Australia.
| | - Roey Elnathan
- Monash Institute of Pharmaceutical Sciences, Monash University, Parkville, Victoria, Australia.
- Melbourne Centre for Nanofabrication, Victorian Node of the Australian National Fabrication Facility, Clayton, Victoria, Australia.
- Department of Materials Science and Engineering, Monash University, Clayton, Victoria, Australia.
| |
Collapse
|
3
|
Yamaguchi R, Hosomi T, Otani M, Nagashima K, Takahashi T, Zhang G, Kanai M, Masai H, Terao J, Yanagida T. Maximizing Conversion of Surface Click Reactions for Versatile Molecular Modification on Metal Oxide Nanowires. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2021; 37:5172-5179. [PMID: 33890792 DOI: 10.1021/acs.langmuir.1c00106] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Abstract
Click reactions (e.g., Huisgen cycloaddition) on metal oxide nanostructures offer a versatile and robust surface molecular modification for various applications because they form strong covalent bonds in a wide range of molecular substrates. This study reports a rational strategy to maximize the conversion rate of surface click reactions on single-crystalline ZnO nanowires by monitoring the reaction progress. p-Polarized multiple-angle incidence resolution spectrometry (pMAIRS) and Fourier-transformed infrared (FT-IR) spectroscopy were employed to monitor the reaction progress of an azide-terminated self-assembled monolayer (SAM) on single-crystalline ZnO nanowires. Although various reaction parameters including the concentration of Cu(I) catalysts, triazolyl ligands, solvents, and target alkynes were systematically examined for the surface click reactions, 10-30% of terminal azide on the nanowire surface remained unreacted. Temperature-dependent FT-IR measurements revealed that such unreacted residual azides deteriorate the thermal stability of the nanowire molecular layer. To overcome this observed conversion limitation of click reactions on nanostructure surfaces, we considered the steric hindrance around the closely packed SAM reaction points, then experimented with dispersing the azide moiety into a methyl-terminated SAM. The mixed-SAM method significantly improved the azide conversion rate to almost 100%. This reaction method enables the construction of spatially patterned molecular surface modifications on metal oxide nanowire arrays without detrimental unreacted azide groups.
Collapse
Affiliation(s)
- Rimon Yamaguchi
- Department of Applied Chemistry, Graduate School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo, Tokyo 113-8656, Japan
- Institute for Materials Chemistry and Engineering, Kyushu University, 6-1 Kasuga-Koen, Kasuga, Fukuoka 816-8580, Japan
| | - Takuro Hosomi
- Department of Applied Chemistry, Graduate School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo, Tokyo 113-8656, Japan
- Japan Science and Technology Agency (JST), PRESTO, 4-1-8 Honcho, Kawaguchi, Saitama 332-0012, Japan
| | - Masaya Otani
- Department of Basic Science, Graduate School of Art and Sciences, The University of Tokyo, 3-8-1 Komaba, Meguro-ku, Tokyo 153-8902, Japan
| | - Kazuki Nagashima
- Department of Applied Chemistry, Graduate School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo, Tokyo 113-8656, Japan
- Japan Science and Technology Agency (JST), PRESTO, 4-1-8 Honcho, Kawaguchi, Saitama 332-0012, Japan
| | - Tsunaki Takahashi
- Department of Applied Chemistry, Graduate School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo, Tokyo 113-8656, Japan
- Japan Science and Technology Agency (JST), PRESTO, 4-1-8 Honcho, Kawaguchi, Saitama 332-0012, Japan
| | - Guozhu Zhang
- Department of Applied Chemistry, Graduate School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo, Tokyo 113-8656, Japan
| | - Masaki Kanai
- Institute for Materials Chemistry and Engineering, Kyushu University, 6-1 Kasuga-Koen, Kasuga, Fukuoka 816-8580, Japan
| | - Hiroshi Masai
- Department of Basic Science, Graduate School of Art and Sciences, The University of Tokyo, 3-8-1 Komaba, Meguro-ku, Tokyo 153-8902, Japan
| | - Jun Terao
- Department of Basic Science, Graduate School of Art and Sciences, The University of Tokyo, 3-8-1 Komaba, Meguro-ku, Tokyo 153-8902, Japan
| | - Takeshi Yanagida
- Department of Applied Chemistry, Graduate School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo, Tokyo 113-8656, Japan
- Institute for Materials Chemistry and Engineering, Kyushu University, 6-1 Kasuga-Koen, Kasuga, Fukuoka 816-8580, Japan
| |
Collapse
|
4
|
Boto A, González CC, Hernández D, Romero-Estudillo I, Saavedra CJ. Site-selective modification of peptide backbones. Org Chem Front 2021. [DOI: 10.1039/d1qo00892g] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Exciting developments in the site-selective modification of peptide backbones are allowing an outstanding fine-tuning of peptide conformation, folding ability, and physico-chemical and biological properties.
Collapse
Affiliation(s)
- Alicia Boto
- Instituto de Productos Naturales y Agrobiología del CSIC, Avda. Astrofísico Francisco Sánchez 3, 38206-La Laguna, Tenerife, Spain
| | - Concepción C. González
- Instituto de Productos Naturales y Agrobiología del CSIC, Avda. Astrofísico Francisco Sánchez 3, 38206-La Laguna, Tenerife, Spain
| | - Dácil Hernández
- Instituto de Productos Naturales y Agrobiología del CSIC, Avda. Astrofísico Francisco Sánchez 3, 38206-La Laguna, Tenerife, Spain
| | - Iván Romero-Estudillo
- Centro de Investigaciones Químicas-IICBA, Universidad Autónoma del Estado de Morelos. Av. Universidad 1001, Cuernavaca, Morelos 62209, Mexico
- Catedrático CONACYT-CIQ-UAEM, Mexico
| | - Carlos J. Saavedra
- Instituto de Productos Naturales y Agrobiología del CSIC, Avda. Astrofísico Francisco Sánchez 3, 38206-La Laguna, Tenerife, Spain
- Programa Agustín de Betancourt, Universidad de la Laguna, 38200 Tenerife, Spain
| |
Collapse
|
5
|
|
6
|
Lard M, Linke H, Prinz CN. Biosensing using arrays of vertical semiconductor nanowires: mechanosensing and biomarker detection. NANOTECHNOLOGY 2019; 30:214003. [PMID: 30699399 DOI: 10.1088/1361-6528/ab0326] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Due to their high aspect ratio and increased surface-to-foot-print area, arrays of vertical semiconductor nanowires are used in numerous biological applications, such as cell transfection and biosensing. Here we focus on two specific valuable biosensing approaches that, so far, have received relatively limited attention in terms of their potential capabilities: cellular mechanosensing and lightguiding-induced enhanced fluorescence detection. Although proposed a decade ago, these two applications for using vertical nanowire arrays have only very recently achieved significant breakthroughs, both in terms of understanding their fundamental phenomena, and in the ease of their implementation. We review the status of the field in these areas and describe significant findings and potential future directions.
Collapse
Affiliation(s)
- Mercy Lard
- Division of Solid State Physics and NanoLund, Lund University, Box 118, SE-221 00 Lund Sweden
| | | | | |
Collapse
|
7
|
Hu H, Kofoed C, Li M, Gonçalves JP, Hansen J, Wolfram M, Hansen AK, Friis Hansen CH, Diness F, Schoffelen S, Meldal M. Computational Evolution of Threonine-Rich β-Hairpin Peptides Mimicking Specificity and Affinity of Antibodies. ACS CENTRAL SCIENCE 2019; 5:259-269. [PMID: 30834314 PMCID: PMC6396188 DOI: 10.1021/acscentsci.8b00614] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/30/2018] [Indexed: 05/07/2023]
Abstract
The development of recognition molecules with antibody-like properties is of great value to the biotechnological and bioanalytical communities. The recognition molecules presented here are peptides with a strong tendency to form β-hairpin structures, stabilized by alternate threonines, which are located at one face of the peptide. Amino acids at the other face of the peptide are available for interaction with the target molecule. Using this scaffold, we demonstrate that recognition molecules can efficiently be designed in silico toward four structurally unrelated proteins, GFP, IL-1β, IL-2, and IL-6. On solid support, 10 different antibody-mimetic recognition molecules were synthesized. They displayed high affinity and no cross-reactivity, as observed by fluorescence microscopy. Stabilized variants were readily obtained by incorporation of azido acids and propargylglycine followed by cyclization via the Cu(I)-catalyzed alkyne-azide cycloaddition reaction. As this new class of antibody mimics can be designed toward essentially any protein, the concept is believed to be useful to a wide range of technologies. Here, their use in protein separation and in the detection of proteins in a sandwich-type assay is demonstrated.
Collapse
|
8
|
Martos-Maldonado MC, Hjuler CT, Sørensen KK, Thygesen MB, Rasmussen JE, Villadsen K, Midtgaard SR, Kol S, Schoffelen S, Jensen KJ. Selective N-terminal acylation of peptides and proteins with a Gly-His tag sequence. Nat Commun 2018; 9:3307. [PMID: 30120230 PMCID: PMC6098153 DOI: 10.1038/s41467-018-05695-3] [Citation(s) in RCA: 39] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2017] [Accepted: 07/17/2018] [Indexed: 02/08/2023] Open
Abstract
Methods for site-selective chemistry on proteins are in high demand for the synthesis of chemically modified biopharmaceuticals, as well as for applications in chemical biology, biosensors and more. Inadvertent N-terminal gluconoylation has been reported during expression of proteins with an N-terminal His tag. Here we report the development of this side-reaction into a general method for highly selective N-terminal acylation of proteins to introduce functional groups. We identify an optimized N-terminal sequence, GHHHn- for the reaction with gluconolactone and 4-methoxyphenyl esters as acylating agents, facilitating the introduction of functionalities in a highly selective and efficient manner. Azides, biotin or a fluorophore are introduced at the N-termini of four unrelated proteins by effective and selective acylation with the 4-methoxyphenyl esters. This Gly-Hisn tag adds the unique capability for highly selective N-terminal chemical acylation of expressed proteins. We anticipate that it can find wide application in chemical biology and for biopharmaceuticals.
Collapse
Affiliation(s)
- Manuel C Martos-Maldonado
- Department of Chemistry, University of Copenhagen, Thorvaldsensvej 40, 1871, Frederiksberg, Denmark.,Biomolecular Nanoscale Engineering Center, University of Copenhagen, Thorvaldsensvej 40, 1871, Frederiksberg, Denmark
| | - Christian T Hjuler
- Department of Chemistry, University of Copenhagen, Thorvaldsensvej 40, 1871, Frederiksberg, Denmark.,Biomolecular Nanoscale Engineering Center, University of Copenhagen, Thorvaldsensvej 40, 1871, Frederiksberg, Denmark
| | - Kasper K Sørensen
- Department of Chemistry, University of Copenhagen, Thorvaldsensvej 40, 1871, Frederiksberg, Denmark.,Biomolecular Nanoscale Engineering Center, University of Copenhagen, Thorvaldsensvej 40, 1871, Frederiksberg, Denmark
| | - Mikkel B Thygesen
- Department of Chemistry, University of Copenhagen, Thorvaldsensvej 40, 1871, Frederiksberg, Denmark.,Biomolecular Nanoscale Engineering Center, University of Copenhagen, Thorvaldsensvej 40, 1871, Frederiksberg, Denmark
| | - Jakob E Rasmussen
- Department of Chemistry, University of Copenhagen, Thorvaldsensvej 40, 1871, Frederiksberg, Denmark.,Biomolecular Nanoscale Engineering Center, University of Copenhagen, Thorvaldsensvej 40, 1871, Frederiksberg, Denmark
| | - Klaus Villadsen
- Department of Chemistry, University of Copenhagen, Thorvaldsensvej 40, 1871, Frederiksberg, Denmark.,Biomolecular Nanoscale Engineering Center, University of Copenhagen, Thorvaldsensvej 40, 1871, Frederiksberg, Denmark
| | - Søren R Midtgaard
- Niels Bohr Institute, University of Copenhagen, Universitetsparken 5, 2100, Copenhagen, Denmark
| | - Stefan Kol
- The Novo Nordisk Foundation Center for Biosustainability, Technical University of Denmark, Kemitorvet Building 220, 2800, Kgs. Lyngby, Denmark
| | - Sanne Schoffelen
- Department of Chemistry, University of Copenhagen, Thorvaldsensvej 40, 1871, Frederiksberg, Denmark. .,Center for Evolutionary Chemical Biology, University of Copenhagen, Universitetsparken 5, 2100, Copenhagen, Denmark.
| | - Knud J Jensen
- Department of Chemistry, University of Copenhagen, Thorvaldsensvej 40, 1871, Frederiksberg, Denmark. .,Biomolecular Nanoscale Engineering Center, University of Copenhagen, Thorvaldsensvej 40, 1871, Frederiksberg, Denmark.
| |
Collapse
|
9
|
Svalova TS, Malysheva NN, Kozitsina AN. Structure of the receptor layer in electrochemical immunosensors. Modern trends and prospects of development. Russ Chem Bull 2018. [DOI: 10.1007/s11172-017-1951-0] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
|
10
|
Mazánek V, Libánská A, Šturala J, Bouša D, Sedmidubský D, Pumera M, Janoušek Z, Plutnar J, Sofer Z. Fluorographene Modified by Grignard Reagents: A Broad Range of Functional Nanomaterials. Chemistry 2017; 23:1956-1964. [DOI: 10.1002/chem.201604989] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2016] [Indexed: 01/08/2023]
Affiliation(s)
- Vlastimil Mazánek
- Department of Inorganic Chemistry; University of Chemistry and Technology Prague; Technická 5 166 28 Prague 6 Czech Republic
| | - Alena Libánská
- Department of Inorganic Chemistry; University of Chemistry and Technology Prague; Technická 5 166 28 Prague 6 Czech Republic
| | - Jiří Šturala
- Department of Organic Chemistry; University of Chemistry and Technology Prague; 166 28 Prague 6 Czech Republic
| | - Daniel Bouša
- Department of Inorganic Chemistry; University of Chemistry and Technology Prague; Technická 5 166 28 Prague 6 Czech Republic
| | - David Sedmidubský
- Department of Inorganic Chemistry; University of Chemistry and Technology Prague; Technická 5 166 28 Prague 6 Czech Republic
| | - Martin Pumera
- Division of Chemistry & Biological Chemistry; School of Physical and Mathematical Sciences; Nanyang Technological University; Nanyang Link 21 Singapore 637371 Singapore
| | - Zbyněk Janoušek
- Institute of Organic Chemistry and Biochemistry ASCR; v.v.i. Flemingovo nám. 2 166 10 Prague 6 Czech Republic
| | - Jan Plutnar
- Institute of Organic Chemistry and Biochemistry ASCR; v.v.i. Flemingovo nám. 2 166 10 Prague 6 Czech Republic
| | - Zdeněk Sofer
- Department of Inorganic Chemistry; University of Chemistry and Technology Prague; Technická 5 166 28 Prague 6 Czech Republic
| |
Collapse
|
11
|
Meldal M, Schoffelen S. Recent advances in covalent, site-specific protein immobilization. F1000Res 2016; 5:F1000 Faculty Rev-2303. [PMID: 27785356 PMCID: PMC5022707 DOI: 10.12688/f1000research.9002.1] [Citation(s) in RCA: 45] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 09/07/2016] [Indexed: 01/25/2023] Open
Abstract
The properties of biosensors, biomedical implants, and other materials based on immobilized proteins greatly depend on the method employed to couple the protein molecules to their solid support. Covalent, site-specific immobilization strategies are robust and can provide the level of control that is desired in this kind of application. Recent advances include the use of enzymes, such as sortase A, to couple proteins in a site-specific manner to materials such as microbeads, glass, and hydrogels. Also, self-labeling tags such as the SNAP-tag can be employed. Last but not least, chemical approaches based on bioorthogonal reactions, like the azide-alkyne cycloaddition, have proven to be powerful tools. The lack of comparative studies and quantitative analysis of these immobilization methods hampers the selection process of the optimal strategy for a given application. However, besides immobilization efficiency, the freedom in selecting the site of conjugation and the size of the conjugation tag and the researcher's expertise regarding molecular biology and/or chemical techniques will be determining factors in this regard.
Collapse
Affiliation(s)
- Morten Meldal
- Center for Evolutionary Chemical Biology, Department of Chemistry & Nano-Science Center, University of Copenhagen, Copenhagen, Denmark
| | - Sanne Schoffelen
- Center for Evolutionary Chemical Biology, Department of Chemistry & Nano-Science Center, University of Copenhagen, Copenhagen, Denmark
| |
Collapse
|
12
|
Investigation of human cell response to covalently attached RADA16-I peptide on silicon surfaces. Colloids Surf B Biointerfaces 2016; 145:470-478. [PMID: 27236098 DOI: 10.1016/j.colsurfb.2016.05.030] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2016] [Revised: 05/06/2016] [Accepted: 05/11/2016] [Indexed: 12/15/2022]
Abstract
We described a modification of the ionic (RADARADARADARADA)(1) peptide or RADA16-I with 4-azidophenyl isothiocyanate via a specific and gentle reaction. The azidated peptide was covalently immobilized on an alkyne-terminated monolayer on Si(111) via the Cu(I)-catalyzed Huisgen 1,3-dipolar cycloaddition reaction. Detailed characterization using Impedance spectroscopy (IS), X-ray photoelectron spectroscopy (XPS) and Fourier transform infrared (FTIR) spectroscopy demonstrated high coverage of the RADA 16-I peptide on silicon surfaces. Scanning electron microscopy (SEM) and methyl tetrazole sulfate (MTS) assay were used to characterize the morphology and proliferation ability of human fibroblast cells on surfaces. Cell adhesion assay was performed to examine cell-substrate interactions. Significant differences in fibroblast cell morphology, adhesion, and viability were observed on the RADA16-I peptide modified surfaces compared to the control surfaces. These results may suggest a potential application of RADA16-I peptide modified surfaces in biomedical applications.
Collapse
|