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Seo M, Lee KJ, Seo B, Lee JH, Lee JH, Shin DW, Park J. Analysis of Self-Assembled Low- and High-Molecular-Weight Poly-L-Lysine-Ce6 Conjugate-Based Nanoparticles. Biomolecules 2024; 14:431. [PMID: 38672448 PMCID: PMC11048146 DOI: 10.3390/biom14040431] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2024] [Revised: 03/26/2024] [Accepted: 03/27/2024] [Indexed: 04/28/2024] Open
Abstract
In cancer therapy, photodynamic therapy (PDT) has attracted significant attention due to its high potential for tumor-selective treatment. However, PDT agents often exhibit poor physicochemical properties, including solubility, necessitating the development of nanoformulations. In this study, we developed two cationic peptide-based self-assembled nanomaterials by using a PDT agent, chlorin e6 (Ce6). To manufacture biocompatible nanoparticles based on peptides, we used the cationic poly-L-lysine peptide, which is rich in primary amines. We prepared low- and high-molecular-weight poly-L-lysine, and then evaluated the formation and performance of nanoparticles after chemical conjugation with Ce6. The results showed that both molecules formed self-assembled nanoparticles by themselves in saline. Interestingly, the high-molecular-weight poly-L-lysine and Ce6 conjugates (HPLCe6) exhibited better self-assembly and PDT performance than low-molecular-weight poly-L-lysine and Ce6 conjugates (LPLCe6). Moreover, the HPLCe6 conjugates showed superior cellular uptake and exhibited stronger cytotoxicity in cell toxicity experiments. Therefore, it is functionally beneficial to use high-molecular-weight poly-L-lysine in the manufacturing of poly-L-lysine-based self-assembling biocompatible PDT nanoconjugates.
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Affiliation(s)
- Minho Seo
- BK21 Program, Department of Applied Life Science, Konkuk University, Chungju 27478, Republic of Korea
| | - Kyeong-Ju Lee
- BK21 Program, Department of Applied Life Science, Konkuk University, Chungju 27478, Republic of Korea
| | - Bison Seo
- College of Biomedical and Health Science (RIBHS), Konkuk University, Chungju 27478, Republic of Korea
| | - Jun-Hyuck Lee
- BK21 Program, Department of Applied Life Science, Konkuk University, Chungju 27478, Republic of Korea
| | - Jae-Hyeon Lee
- BK21 Program, Department of Applied Life Science, Konkuk University, Chungju 27478, Republic of Korea
| | - Dong-Wook Shin
- College of Biomedical and Health Science (RIBHS), Konkuk University, Chungju 27478, Republic of Korea
| | - Jooho Park
- BK21 Program, Department of Applied Life Science, Konkuk University, Chungju 27478, Republic of Korea
- College of Biomedical and Health Science (RIBHS), Konkuk University, Chungju 27478, Republic of Korea
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Dong H, Wang HY, Xu YT, Zhang X, Chen HY, Xu JJ, Zhao WW. Iontronic Photoelectrochemical Biorecognition Probing. ACS Sens 2024; 9:988-994. [PMID: 38258286 DOI: 10.1021/acssensors.3c02544] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2024]
Abstract
Herein, the first iontronic photoelectrochemical (PEC) biorecognition probing is devised by rational engineering of a dual-functional bioconjugate, i.e., a light-sensitive intercalated structural DNA, as a smart gating module confined within a nanotip, which could respond to both the incident light and biotargets of interest. Light stimulation of the bioconjugate could intensify the negative charge at the nano-orifice to sustain enhanced ionic current. The presence of proteins (e.g., acetylcholinesterase, AChE) or nucleic acids (e.g., microRNA (miR)-10b) could lead to bioconjugate release with altered ionic signaling. The practical applicability of the methodology is confirmed by AChE detection in human serum and miR-10b detection in single cells.
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Affiliation(s)
- Hang Dong
- State Key Laboratory of Analytical Chemistry for Life Science, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, P. R. China
| | - Hai-Yan Wang
- State Key Laboratory of Analytical Chemistry for Life Science, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, P. R. China
| | - Yi-Tong Xu
- State Key Laboratory of Analytical Chemistry for Life Science, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, P. R. China
| | - Xian Zhang
- State Key Laboratory of Analytical Chemistry for Life Science, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, P. R. China
| | - Hong-Yuan Chen
- State Key Laboratory of Analytical Chemistry for Life Science, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, P. R. China
| | - Jing-Juan Xu
- State Key Laboratory of Analytical Chemistry for Life Science, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, P. R. China
| | - Wei-Wei Zhao
- State Key Laboratory of Analytical Chemistry for Life Science, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, P. R. China
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Gendron A, Domenichini S, Zanna S, Gobeaux F, Piesse C, Desmaële D, Varna M. Development and Characterization of Innovative Multidrug Nanoformulation for Cardiac Therapy. Materials (Basel) 2023; 16:1812. [PMID: 36902927 PMCID: PMC10003764 DOI: 10.3390/ma16051812] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/28/2022] [Revised: 02/15/2023] [Accepted: 02/17/2023] [Indexed: 06/18/2023]
Abstract
For several decades, various peptides have been under investigation to prevent ischemia/reperfusion (I/R) injury, including cyclosporin A (CsA) and Elamipretide. Therapeutic peptides are currently gaining momentum as they have many advantages over small molecules, such as better selectivity and lower toxicity. However, their rapid degradation in the bloodstream is a major drawback that limits their clinical use, due to their low concentration at the site of action. To overcome these limitations, we have developed new bioconjugates of Elamipretide by covalent coupling with polyisoprenoid lipids, such as squalenic acid or solanesol, embedding self-assembling ability. The resulting bioconjugates were co-nanoprecipitated with CsA squalene bioconjugate to form Elamipretide decorated nanoparticles (NPs). The subsequent composite NPs were characterized with respect to mean diameter, zeta potential, and surface composition by Dynamic Light Scattering (DLS), Cryogenic Transmission Electron Microscopy (CryoTEM) and X-ray Photoelectron Spectrometry (XPS). Further, these multidrug NPs were found to have less than 20% cytotoxicity on two cardiac cell lines even at high concentrations, while maintaining an antioxidant capacity. These multidrug NPs could be considered for further investigations as an approach to target two important pathways involved in the development of cardiac I/R lesions.
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Affiliation(s)
- Amandine Gendron
- Université Paris-Saclay, CNRS UMR 8612, Institut Galien Paris-Saclay, 91400 Orsay, France
| | - Séverine Domenichini
- UMS-IPSIT Plateforme MIPSIT, Université Paris-Saclay, CNRS, Inserm, Ingénierie et Plateformes au Service de l’Innovation Thérapeutique, 91400 Orsay, France
| | - Sandrine Zanna
- PSL Research University, Chimie ParisTech-CNRS, Institut de Recherche de Chimie Paris, Research Group Physical Chemistry of Surfaces, 11 rue Pierre et Marie Curie, 75005 Paris, France
| | - Frédéric Gobeaux
- Université Paris-Saclay, CEA, CNRS, NIMBE, 91191 Gif-sur-Yvette, France
| | - Christophe Piesse
- Sorbonne Université, CNRS, Institut de Biologie Paris-Seine (IBPS), Plateforme d’Ingénierie des Protéines—Service de Synthèse Peptidique, 75005 Paris, France
| | - Didier Desmaële
- Université Paris-Saclay, CNRS UMR 8612, Institut Galien Paris-Saclay, 91400 Orsay, France
| | - Mariana Varna
- Université Paris-Saclay, CNRS UMR 8612, Institut Galien Paris-Saclay, 91400 Orsay, France
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Pereira MR, dos Santos VR, de Oliveira WC, Duque C, da Silva BF, Santos-Filho NA, Carneiro VA, Lorenzón EN, Cilli EM. Effects of Conjugation of Ferrocene and Gallic Acid On desCys 11/Lys 12/Lys 13-(p-BthTX-I) 2K Peptide: Structure, Permeabilization and Antibacterial Activity. Protein Pept Lett 2023; 30:690-698. [PMID: 37488753 DOI: 10.2174/0929866530666230721112129] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2023] [Revised: 06/11/2023] [Accepted: 06/15/2023] [Indexed: 07/26/2023]
Abstract
BACKGROUND Antimicrobial resistance is an emerging global health challenge that has led researchers to study alternatives to conventional antibiotics. A promising alternative is antimicrobial peptides (AMPs), produced as the first line of defense by almost all living organisms. To improve its biological activity, the conjugation of AMPs is a promising approach. OBJECTIVE In this study, we evaluated the N-terminal conjugation of p-Bt (a peptide derived from Bothrops Jararacuçu`s venom) with ferrocene (Fc) and gallic acid (GA). Acetylated and linear versions of p-Bt were also synthesized to evaluate the importance of N-terminal charge and dimeric structure. METHODS The compounds were obtained using solid-phase peptide synthesis. Circular dichroism, vesicle permeabilization, antimicrobial activity, and cytotoxicity studies were conducted. RESULTS No increase in antibacterial activity against Escherichia coli was observed by adding either Fc or GA to p-Bt. However, Fc-p-Bt and GA-p-Bt exhibited improved activity against Staphylococcus aureus. No cytotoxicity upon fibroblast was observed for GA-p-Bt. On the other hand, conjugation with Fc increased cytotoxicity. This toxicity may be related to the membrane permeabilization capacity of this bioconjugate, which showed the highest carboxyfluorescein leakage in vesicle permeabilization experiments. CONCLUSION Considering these observations, our findings highlight the importance of adding bioactive organic compounds in the N-terminal position as a tool to modulate the activity of AMPs.
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Affiliation(s)
- Marina Rodrigues Pereira
- Departamento de Bioquímica e Química Orgânica, Instituto de Química, Universidade Estadual Paulista (UNESP), SP, 14800-060, São Paulo, Araraquara, Brasil
| | - Vanessa Rodrigues dos Santos
- Departamento de Odontologia Preventiva e Restauradora, Faculdade de Odontologia de Araçatuba, Universidade Estadual Paulista (UNESP), Araçatuba 16015-050, SP, Brasil
| | - Warlley Campos de Oliveira
- Departamento de Odontologia Preventiva e Restauradora, Faculdade de Odontologia de Araçatuba, Universidade Estadual Paulista (UNESP), Araçatuba 16015-050, SP, Brasil
| | - Cristiane Duque
- Departamento de Odontologia Preventiva e Restauradora, Faculdade de Odontologia de Araçatuba, Universidade Estadual Paulista (UNESP), Araçatuba 16015-050, SP, Brasil
- Dental Research Institute, Faculdade de Odontologia, Universidade de Toronto, Toronto, ONM5G 1G6, Canadá
| | - Benise Ferreira da Silva
- Núcleo de Bioprospecção e Experimentação Molecular Aplicada (NUBEM), Centro Universitário INTA - UNINTA, Sobral, 62050-100, Ceará, Brasil
| | - Norival Alves Santos-Filho
- Departamento de Bioquímica e Química Orgânica, Instituto de Química, Universidade Estadual Paulista (UNESP), SP, 14800-060, São Paulo, Araraquara, Brasil
| | - Victor Alves Carneiro
- Núcleo de Bioprospecção e Experimentação Molecular Aplicada (NUBEM), Centro Universitário INTA - UNINTA, Sobral, 62050-100, Ceará, Brasil
| | | | - Eduardo Maffud Cilli
- Departamento de Bioquímica e Química Orgânica, Instituto de Química, Universidade Estadual Paulista (UNESP), SP, 14800-060, São Paulo, Araraquara, Brasil
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Knoot CJ, Wantuch PL, Robinson LS, Rosen DA, Scott NE, Harding CM. Discovery and characterization of a new class of O-linking oligosaccharyltransferases from the Moraxellaceae family. Glycobiology 2022; 33:57-74. [PMID: 36239418 PMCID: PMC9829042 DOI: 10.1093/glycob/cwac070] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2022] [Revised: 10/07/2022] [Accepted: 10/11/2022] [Indexed: 01/12/2023] Open
Abstract
Bacterial protein glycosylation is commonly mediated by oligosaccharyltransferases (OTases) that transfer oligosaccharides en bloc from preassembled lipid-linked precursors to acceptor proteins. Natively, O-linking OTases usually transfer a single repeat unit of the O-antigen or capsular polysaccharide to the side chains of serine or threonine on acceptor proteins. Three major families of bacterial O-linking OTases have been described: PglL, PglS, and TfpO. TfpO is limited to transferring short oligosaccharides both in its native context and when heterologously expressed in glycoengineered Escherichia coli. On the other hand, PglL and PglS can transfer long-chain polysaccharides when expressed in glycoengineered E. coli. Herein, we describe the discovery and functional characterization of a novel family of bacterial O-linking OTases termed TfpM from Moraxellaceae bacteria. TfpM proteins are similar in size and sequence to TfpO enzymes but can transfer long-chain polysaccharides to acceptor proteins. Phylogenetic analyses demonstrate that TfpM proteins cluster in distinct clades from known bacterial OTases. Using a representative TfpM enzyme from Moraxella osloensis, we determined that TfpM glycosylates a C-terminal threonine of its cognate pilin-like protein and identified the minimal sequon required for glycosylation. We further demonstrated that TfpM has broad substrate tolerance and can transfer diverse glycans including those with glucose, galactose, or 2-N-acetyl sugars at the reducing end. Last, we find that a TfpM-derived bioconjugate is immunogenic and elicits serotype-specific polysaccharide IgG responses in mice. The glycan substrate promiscuity of TfpM and identification of the minimal TfpM sequon renders this enzyme a valuable additional tool for expanding the glycoengineering toolbox.
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Affiliation(s)
- Cory J Knoot
- Omniose, 4340 Duncan Ave, Suite 202, St. Louis, MO 63110, USA
| | - Paeton L Wantuch
- Department of Pediatrics, Division of Infectious Diseases, Washington University School of Medicine, 4990 Children’s Place, St. Louis, MO 63110, USA
| | | | - David A Rosen
- Department of Pediatrics, Division of Infectious Diseases, Washington University School of Medicine, 4990 Children’s Place, St. Louis, MO 63110, USA,Department of Molecular Microbiology, Washington University School of Medicine, 660 Euclid Ave, St. Louis, MO 63110, USA
| | - Nichollas E Scott
- Department of Microbiology and Immunology, University of Melbourne at the Peter Doherty Institute for Infection and Immunity, Parkville, VIC 3010, Australia
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6
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Dibona-Villanueva L, Fuentealba D. Protoporphyrin IX-Chitosan Oligosaccharide Conjugate with Potent Antifungal Photodynamic Activity. J Agric Food Chem 2022; 70:9276-9282. [PMID: 35866700 DOI: 10.1021/acs.jafc.2c01644] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
A new chemical conjugate between protoporphyrin IX (PPIX) and chitosan oligosaccharides (CH) was prepared and evaluated in vitro as an antifungal agent against Penicillium digitatum. Chemical characterization and photophysical/photochemical studies were conducted. The antifungal effect of the CH-PPIX conjugate was compared to its components (PPIX and CH) and a physical mixture of both, under dark and illuminated conditions. The CH-PPIX conjugate was photostable and inhibited fungal growth with 100% efficiency at a dose of 0.005% w/v under visible light irradiation, while no antifungal activity was observed in the dark. Under the same conditions, CH and PPIX did not display any fungicidal activity, demonstrating the improved properties of the conjugate. Insights into the mechanism of fungal inactivation revealed an efficient spore uptake and photoinduced membrane damage through singlet oxygen generation. This new bioconjugate, which is based on natural components, represents a promising agent for fungicidal formulations based on antimicrobial photodynamic therapy.
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Affiliation(s)
- Luciano Dibona-Villanueva
- Laboratorio de Química Supramolecular y Fotobiología, Departamento de Química Física, Escuela de Química, Facultad de Química y de Farmacia, Pontificia Universidad Católica de Chile, Macul, Santiago 7820436, Chile
| | - Denis Fuentealba
- Laboratorio de Química Supramolecular y Fotobiología, Departamento de Química Física, Escuela de Química, Facultad de Química y de Farmacia, Pontificia Universidad Católica de Chile, Macul, Santiago 7820436, Chile
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7
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Mittmann E, Mickoleit F, Maier DS, Stäbler SY, Klein MA, Niemeyer CM, Rabe KS, Schüler D. A Magnetosome-Based Platform for Flow Biocatalysis. ACS Appl Mater Interfaces 2022; 14:22138-22150. [PMID: 35508355 PMCID: PMC9121345 DOI: 10.1021/acsami.2c03337] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/22/2022] [Accepted: 04/11/2022] [Indexed: 06/14/2023]
Abstract
Biocatalysis in flow reactor systems is of increasing importance for the transformation of the chemical industry. However, the necessary immobilization of biocatalysts remains a challenge. We here demonstrate that biogenic magnetic nanoparticles, so-called magnetosomes, represent an attractive alternative for the development of nanoscale particle formulations to enable high and stable conversion rates in biocatalytic flow processes. In addition to their intriguing material characteristics, such as high crystallinity, stable magnetic moments, and narrow particle size distribution, magnetosomes offer the unbeatable advantage over chemically synthesized nanoparticles that foreign protein "cargo" can be immobilized on the enveloping membrane via genetic engineering and thus, stably presented on the particle surface. To exploit these advantages, we develop a modular connector system in which abundant magnetosome membrane anchors are genetically fused with SpyCatcher coupling groups, allowing efficient covalent coupling with complementary SpyTag-functionalized proteins. The versatility of this approach is demonstrated by immobilizing a dimeric phenolic acid decarboxylase to SpyCatcher magnetosomes. The functionalized magnetosomes outperform similarly functionalized commercial particles by exhibiting stable substrate conversion during a 60 h period, with an average space-time yield of 49.2 mmol L-1 h-1. Overall, our results demonstrate that SpyCatcher magnetosomes significantly expand the genetic toolbox for particle surface functionalization and increase their application potential as nano-biocatalysts.
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Affiliation(s)
- Esther Mittmann
- Institute
for Biological Interfaces 1, Karlsruhe Institute
of Technology (KIT), Hermann-von-Helmholtz-Platz 1, D-76344 Eggenstein-Leopoldshafen, Germany
| | - Frank Mickoleit
- Department
of Microbiology, University of Bayreuth, Universitätsstraße 30, D-95447 Bayreuth, Germany
| | - Denis S. Maier
- Department
of Microbiology, University of Bayreuth, Universitätsstraße 30, D-95447 Bayreuth, Germany
| | - Sabrina Y. Stäbler
- Department
of Microbiology, University of Bayreuth, Universitätsstraße 30, D-95447 Bayreuth, Germany
| | - Marius A. Klein
- Department
of Microbiology, University of Bayreuth, Universitätsstraße 30, D-95447 Bayreuth, Germany
| | - Christof M. Niemeyer
- Institute
for Biological Interfaces 1, Karlsruhe Institute
of Technology (KIT), Hermann-von-Helmholtz-Platz 1, D-76344 Eggenstein-Leopoldshafen, Germany
| | - Kersten S. Rabe
- Institute
for Biological Interfaces 1, Karlsruhe Institute
of Technology (KIT), Hermann-von-Helmholtz-Platz 1, D-76344 Eggenstein-Leopoldshafen, Germany
| | - Dirk Schüler
- Department
of Microbiology, University of Bayreuth, Universitätsstraße 30, D-95447 Bayreuth, Germany
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Shahriari S, Sastry M, Panjikar S, Singh Raman RK. Graphene and Graphene Oxide as a Support for Biomolecules in the Development of Biosensors. Nanotechnol Sci Appl 2021; 14:197-220. [PMID: 34815666 PMCID: PMC8605898 DOI: 10.2147/nsa.s334487] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2021] [Accepted: 10/02/2021] [Indexed: 01/21/2023] Open
Abstract
Graphene and graphene oxide have become the base of many advanced biosensors due to their exceptional characteristics. However, lack of some properties, such as inertness of graphene in organic solutions and non-electrical conductivity of graphene oxide, are their drawbacks in sensing applications. To compensate for these shortcomings, various methods of modifications have been developed to provide the appropriate properties required for biosensing. Efficient modification of graphene and graphene oxide facilitates the interaction of biomolecules with their surface, and the ultimate bioconjugate can be employed as the main sensing part of the biosensors. Graphene nanomaterials as transducers increase the signal response in various sensing applications. Their large surface area and perfect biocompatibility with lots of biomolecules provide the prerequisite of a stable biosensor, which is the immobilization of bioreceptor on transducer. Biosensor development has paramount importance in the field of environmental monitoring, security, defense, food safety standards, clinical sector, marine sector, biomedicine, and drug discovery. Biosensor applications are also prevalent in the plant biology sector to find the missing links required in the metabolic process. In this review, the importance of oxygen functional groups in functionalizing the graphene and graphene oxide and different types of functionalization will be explained. Moreover, immobilization of biomolecules (such as protein, peptide, DNA, aptamer) on graphene and graphene oxide and at the end, the application of these biomaterials in biosensors with different transducing mechanisms will be discussed.
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Affiliation(s)
- Shiva Shahriari
- Department of Mechanical & Aerospace Engineering, Monash University, Melbourne, Victoria, Australia
| | - Murali Sastry
- Department of Materials Science and Engineering, Monash University, Melbourne, Victoria, Australia
| | - Santosh Panjikar
- ANSTO, Australian Synchrotron, Melbourne, Victoria, Australia
- Department of Molecular Biology and Biochemistry, Monash University, Melbourne, Victoria, Australia
| | - R K Singh Raman
- Department of Mechanical & Aerospace Engineering, Monash University, Melbourne, Victoria, Australia
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9
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Duke JA, Paschall AV, Robinson LS, Knoot CJ, Vinogradov E, Scott NE, Feldman MF, Avci FY, Harding CM. Development and Immunogenicity of a Prototype Multivalent Group B Streptococcus Bioconjugate Vaccine. ACS Infect Dis 2021; 7:3111-3123. [PMID: 34633812 PMCID: PMC8793035 DOI: 10.1021/acsinfecdis.1c00415] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Group B Streptococcus (GBS) is a leading cause of neonatal infections and invasive diseases in nonpregnant adults worldwide. Developing a protective conjugate vaccine targeting the capsule of GBS has been pursued for more than 30 years; however, it has yet to yield a licensed product. In this study, we present a novel bioconjugation platform for producing a prototype multivalent GBS conjugate vaccine and its subsequent analytical and immunological characterizations. Using a glycoengineering strategy, we generated strains of Escherichia coli that recombinantly express the type Ia, type Ib, and type III GBS capsular polysaccharides. We then combined the type Ia-, Ib-, and III-capsule-expressing E. coli strains with an engineered Pseudomonas aeruginosa exotoxin A (EPA) carrier protein and the PglS oligosaccharyltransferase. Coexpression of a GBS capsule, the engineered EPA protein, and PglS enabled the covalent attachment of the target GBS capsule to an engineered serine residue on EPA, all within the periplasm of E. coli. GBS bioconjugates were purified, analytically characterized, and evaluated for immunogenicity and functional antibody responses. This proof-of-concept study signifies the first step in the development of a next-generation multivalent GBS bioconjugate vaccine, which was validated by the production of conjugates that are able to elicit functional antibodies directed against the GBS capsule.
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Affiliation(s)
- Jeremy A. Duke
- Department of Biochemistry and Molecular Biology, University of Georgia, Athens, Georgia 30602, United States
- Center for Molecular Medicine, University of Georgia, Athens, Georgia 30602, United States
| | - Amy V. Paschall
- Department of Biochemistry and Molecular Biology, University of Georgia, Athens, Georgia 30602, United States
- Center for Molecular Medicine, University of Georgia, Athens, Georgia 30602, United States
| | | | | | - Evgeny Vinogradov
- Human Health Therapeutics Centre, National Research Council Canada, Ottawa, ON K1A 0R6, Canada
| | - Nichollas E. Scott
- Department of Microbiology and Immunology, University of Melbourne at the Peter Doherty Institute for Infection and Immunity, Parkville, VIC 3010, Australia
| | - Mario F. Feldman
- VaxNewMo, St. Louis, Missouri 63110, United States
- Department of Molecular Microbiology, Washington University School of Medicine, St. Louis, Missouri 63110, United States
| | - Fikri Y. Avci
- Department of Biochemistry and Molecular Biology, University of Georgia, Athens, Georgia 30602, United States
- Center for Molecular Medicine, University of Georgia, Athens, Georgia 30602, United States
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10
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Banik N, Yang SB, Kang TB, Lim JH, Park J. Heparin and Its Derivatives: Challenges and Advances in Therapeutic Biomolecules. Int J Mol Sci 2021; 22:ijms221910524. [PMID: 34638867 PMCID: PMC8509054 DOI: 10.3390/ijms221910524] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2021] [Revised: 09/27/2021] [Accepted: 09/28/2021] [Indexed: 12/13/2022] Open
Abstract
Heparin has been extensively studied as a safe medicine and biomolecule over the past few decades. Heparin derivatives, including low-molecular-weight heparins (LMWH) and heparin pentasaccharide, are effective anticoagulants currently used in clinical settings. They have also been studied as functional biomolecules or biomaterials for various therapeutic uses to treat diseases. Heparin, which has a similar molecular structure to heparan sulfate, can be used as a remarkable biomedicine due to its uniquely high safety and biocompatibility. In particular, it has recently drawn attention for use in drug-delivery systems, biomaterial-based tissue engineering, nanoformulations, and new drug-development systems through molecular formulas. A variety of new heparin-based biomolecules and conjugates have been developed in recent years and are currently being evaluated for use in clinical applications. This article reviews heparin derivatives recently studied in the field of drug development for the treatment of various diseases.
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Affiliation(s)
- Nipa Banik
- Department of Integrated Biosciences, Graduate School, BK21 Program, Konkuk University, Chungju 27478, Korea; (N.B.); (S.-B.Y.); (T.-B.K.); (J.-H.L.)
| | - Seong-Bin Yang
- Department of Integrated Biosciences, Graduate School, BK21 Program, Konkuk University, Chungju 27478, Korea; (N.B.); (S.-B.Y.); (T.-B.K.); (J.-H.L.)
| | - Tae-Bong Kang
- Department of Integrated Biosciences, Graduate School, BK21 Program, Konkuk University, Chungju 27478, Korea; (N.B.); (S.-B.Y.); (T.-B.K.); (J.-H.L.)
| | - Ji-Hong Lim
- Department of Integrated Biosciences, Graduate School, BK21 Program, Konkuk University, Chungju 27478, Korea; (N.B.); (S.-B.Y.); (T.-B.K.); (J.-H.L.)
- Department of Biomedical Chemistry, College of Biomedical & Health Science, Konkuk University, Chungju 27478, Korea
| | - Jooho Park
- Department of Integrated Biosciences, Graduate School, BK21 Program, Konkuk University, Chungju 27478, Korea; (N.B.); (S.-B.Y.); (T.-B.K.); (J.-H.L.)
- Department of Biomedical Chemistry, College of Biomedical & Health Science, Konkuk University, Chungju 27478, Korea
- Correspondence:
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11
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Cantelli A, Malferrari M, Soldà A, Simonetti G, Forni S, Toscanella E, Mattioli EJ, Zerbetto F, Zanelli A, Di Giosia M, Zangoli M, Barbarella G, Rapino S, Di Maria F, Calvaresi M. Human Serum Albumin-Oligothiophene Bioconjugate: A Phototheranostic Platform for Localized Killing of Cancer Cells by Precise Light Activation. JACS Au 2021; 1:925-935. [PMID: 34467339 PMCID: PMC8395684 DOI: 10.1021/jacsau.1c00061] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/11/2021] [Indexed: 05/05/2023]
Abstract
The electronic, optical, and redox properties of thiophene-based materials have made them pivotal in nanoscience and nanotechnology. However, the exploitation of oligothiophenes in photodynamic therapy is hindered by their intrinsic hydrophobicity that lowers their biocompatibility and availability in water environments. Here, we developed human serum albumin (HSA)-oligothiophene bioconjugates that afford the use of insoluble oligothiophenes in physiological environments. UV-vis and electrophoresis proved the conjugation of the oligothiophene sensitizers to the protein. The bioconjugate is water-soluble and biocompatible, does not have any "dark toxicity", and preserves HSA in the physiological monomeric form, as confirmed by dynamic light scattering and circular dichroism measurements. In contrast, upon irradiation with ultralow light doses, the bioconjugate efficiently produces reactive oxygen species (ROS) and leads to the complete eradication of cancer cells. Real-time monitoring of the photokilling activity of the HSA-oligothiophene bioconjugate shows that living cells "explode" upon irradiation. Photodependent and dose-dependent apoptosis is one of the primary mechanisms of cell death activated by bioconjugate irradiation. The bioconjugate is a novel theranostic platform able to generate ROS intracellularly and provide imaging through the fluorescence of the oligothiophene. It is also a real-time self-reporting system able to monitor the apoptotic process. The induced phototoxicity is strongly confined to the irradiated region, showing localized killing of cancer cells by precise light activation of the bioconjugate.
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Affiliation(s)
- Andrea Cantelli
- Dipartimento
di Chimica “Giacomo Ciamician, Alma Mater Studiorum, Università di Bologna, Via Francesco Selmi, 2, 40126 Bologna, Italy
| | - Marco Malferrari
- Dipartimento
di Chimica “Giacomo Ciamician, Alma Mater Studiorum, Università di Bologna, Via Francesco Selmi, 2, 40126 Bologna, Italy
| | - Alice Soldà
- Dipartimento
di Chimica “Giacomo Ciamician, Alma Mater Studiorum, Università di Bologna, Via Francesco Selmi, 2, 40126 Bologna, Italy
| | - Giorgia Simonetti
- IRCCS
Istituto Romagnolo per lo Studio dei Tumori (IRST) “Dino Amadori”, Via Piero Maroncelli, 40, 47014 Meldola, FC, Italy
| | - Sonny Forni
- Dipartimento
di Chimica “Giacomo Ciamician, Alma Mater Studiorum, Università di Bologna, Via Francesco Selmi, 2, 40126 Bologna, Italy
| | - Edoardo Toscanella
- Dipartimento
di Chimica “Giacomo Ciamician, Alma Mater Studiorum, Università di Bologna, Via Francesco Selmi, 2, 40126 Bologna, Italy
| | - Edoardo J. Mattioli
- Dipartimento
di Chimica “Giacomo Ciamician, Alma Mater Studiorum, Università di Bologna, Via Francesco Selmi, 2, 40126 Bologna, Italy
| | - Francesco Zerbetto
- Dipartimento
di Chimica “Giacomo Ciamician, Alma Mater Studiorum, Università di Bologna, Via Francesco Selmi, 2, 40126 Bologna, Italy
| | - Alberto Zanelli
- Istituto
per la Sintesi Organica e la Fotoreattività (ISOF), Consiglio Nazionale delle Ricerche, Via Piero Gobetti, 101, 40129 Bologna, Italy
| | - Matteo Di Giosia
- Dipartimento
di Chimica “Giacomo Ciamician, Alma Mater Studiorum, Università di Bologna, Via Francesco Selmi, 2, 40126 Bologna, Italy
| | - Mattia Zangoli
- Istituto
per la Sintesi Organica e la Fotoreattività (ISOF), Consiglio Nazionale delle Ricerche, Via Piero Gobetti, 101, 40129 Bologna, Italy
- Mediteknology
srl, Via Piero Gobetti,
101, 40129 Bologna, Italy
| | - Giovanna Barbarella
- Istituto
per la Sintesi Organica e la Fotoreattività (ISOF), Consiglio Nazionale delle Ricerche, Via Piero Gobetti, 101, 40129 Bologna, Italy
- Mediteknology
srl, Via Piero Gobetti,
101, 40129 Bologna, Italy
| | - Stefania Rapino
- Dipartimento
di Chimica “Giacomo Ciamician, Alma Mater Studiorum, Università di Bologna, Via Francesco Selmi, 2, 40126 Bologna, Italy
| | - Francesca Di Maria
- Istituto
per la Sintesi Organica e la Fotoreattività (ISOF), Consiglio Nazionale delle Ricerche, Via Piero Gobetti, 101, 40129 Bologna, Italy
- Mediteknology
srl, Via Piero Gobetti,
101, 40129 Bologna, Italy
| | - Matteo Calvaresi
- Dipartimento
di Chimica “Giacomo Ciamician, Alma Mater Studiorum, Università di Bologna, Via Francesco Selmi, 2, 40126 Bologna, Italy
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12
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Bocian W, Naumczuk B, Urbanowicz M, Sitkowski J, Bierczyńska-Krzysik A, Bednarek E, Wiktorska K, Milczarek M, Kozerski L. The Mode of SN38 Derivatives Interacting with Nicked DNA Mimics Biological Targeting of Topo I Poisons. Int J Mol Sci 2021; 22:ijms22147471. [PMID: 34299090 PMCID: PMC8303725 DOI: 10.3390/ijms22147471] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2021] [Revised: 07/08/2021] [Accepted: 07/08/2021] [Indexed: 11/16/2022] Open
Abstract
The compounds 7-ethyl-9-(N-methylamino)methyl-10-hydroxycamptothecin (2) and 7-ethyl-9-(N-morpholino)methyl-10-hydroxycamptothecin (3) are potential topoisomerase I poisons. Moreover, they were shown to have favorable anti-neoplastic effects on several tumor cell lines. Due to these properties, the compounds are being considered for advancement to the preclinical development stage. To gain better insights into the molecular mechanism with the biological target, here, we conducted an investigation into their interactions with model nicked DNA (1) using different techniques. In this work, we observed the complexity of the mechanism of action of the compounds 2 and 3, in addition to their decomposition products: compound 4 and SN38. Using DOSY experiments, evidence of the formation of strongly bonded molecular complexes of SN38 derivatives with DNA duplexes was provided. The molecular modeling based on cross-peaks from the NOESY spectrum also allowed us to assign the geometry of a molecular complex of DNA with compound 2. Confirmation of the alkylation reaction of both compounds was obtained using MALDI–MS. Additionally, in the case of 3, alkylation was confirmed in the recording of cross-peaks in the 1H/13C HSQC spectrum of 13C-enriched compound 3. In this work, we showed that the studied compounds—parent compounds 2 and 3, and their potential metabolite 4 and SN38—interact inside the nick of 1, either forming the molecular complex or alkylating the DNA nitrogen bases. In order to confirm the influence of the studied compounds on the topoisomerase I relaxation activity of supercoiled DNA, the test was performed based upon the measurement of the fluorescence of DNA stain which can differentiate between supercoiled and relaxed DNA. The presented results confirmed that studied SN38 derivatives effectively block DNA relaxation mediated by Topo I, which means that they stop the machinery of Topo I activity.
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Affiliation(s)
- Wojciech Bocian
- National Medicines Institute, 00-725 Warsaw, Poland; (W.B.); (M.U.); (J.S.); (E.B.); (K.W.); (M.M.); (L.K.)
| | - Beata Naumczuk
- National Medicines Institute, 00-725 Warsaw, Poland; (W.B.); (M.U.); (J.S.); (E.B.); (K.W.); (M.M.); (L.K.)
- Institute of Organic Chemistry, Polish Academy of Sciences, 01-224 Warsaw, Poland
- Correspondence: ; Tel.: +48-22-8514371 (ext. 318)
| | - Magdalena Urbanowicz
- National Medicines Institute, 00-725 Warsaw, Poland; (W.B.); (M.U.); (J.S.); (E.B.); (K.W.); (M.M.); (L.K.)
| | - Jerzy Sitkowski
- National Medicines Institute, 00-725 Warsaw, Poland; (W.B.); (M.U.); (J.S.); (E.B.); (K.W.); (M.M.); (L.K.)
| | | | - Elżbieta Bednarek
- National Medicines Institute, 00-725 Warsaw, Poland; (W.B.); (M.U.); (J.S.); (E.B.); (K.W.); (M.M.); (L.K.)
| | - Katarzyna Wiktorska
- National Medicines Institute, 00-725 Warsaw, Poland; (W.B.); (M.U.); (J.S.); (E.B.); (K.W.); (M.M.); (L.K.)
| | - Małgorzata Milczarek
- National Medicines Institute, 00-725 Warsaw, Poland; (W.B.); (M.U.); (J.S.); (E.B.); (K.W.); (M.M.); (L.K.)
| | - Lech Kozerski
- National Medicines Institute, 00-725 Warsaw, Poland; (W.B.); (M.U.); (J.S.); (E.B.); (K.W.); (M.M.); (L.K.)
- Institute of Organic Chemistry, Polish Academy of Sciences, 01-224 Warsaw, Poland
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13
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Zainab Mazhari BB. Genotoxic Attribute of Bioconjugate of Tyr-AuNps Synthesized by Streptomyces tuirus DBZ39. Pak J Biol Sci 2021; 24:261-267. [PMID: 33683056 DOI: 10.3923/pjbs.2021.261.267] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
BACKGROUND AND OBJECTIVE Nanotechnology is a cumbersome field used in industrial, medical and environmental applications. Abundant information regarding the genotoxicity of gold nanoparticles is available, but limited information is available about the genotoxicity of enzymes and bioconjugates of gold nanoparticles from microbial sources. The present investigation reveals the genotoxicity of bioconjugate of tyrosinase and gold nanoparticles from Streptomyces sp. MATERIALS AND METHODS Tyrosinase and gold nanoparticles were isolated from Streptomyces tuirus DBZ39 and employed for the development of bioconjugates by the flocculation assay method. Methyl thiazole (MTT) assay, transmission electron microscopy, Dynamic Light Scattering (DLS) and UV-vis absorption spectroscopy were used for the investigation. RESULTS Bioconjugate showed a significant genotoxic effect at a concentration of 18 μL and at least 10 μL. Bioconjugate of tyrosinase and gold nanoparticles by Streptomyces tuirus DBZ39 revealed a more expressed genotoxic effect than nanoparticles alone. The efficacy of gold nanoparticles was expected to improve the bonding of tyrosine due to their catalytic properties. CONCLUSION This innovative concept of the application of Tyr-AuNps bioconjugate can be used for the development of powerful weapons in medicinal fields. The introduction of bioconjugates of enzymes and nanoparticles in the field of drug design and cancer imaging will be a fundamental breakthrough in medicine.
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14
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Gendron A, Lan Linh Tran N, Laloy J, Brusini R, Rachet A, Gobeaux F, Nicolas V, Chaminade P, Abreu S, Desmaële D, Varna M. New Nanoparticle Formulation for Cyclosporin A: In Vitro Assessment. Pharmaceutics 2021; 13:pharmaceutics13010091. [PMID: 33445646 PMCID: PMC7828155 DOI: 10.3390/pharmaceutics13010091] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2020] [Revised: 01/07/2021] [Accepted: 01/08/2021] [Indexed: 01/02/2023] Open
Abstract
Cyclosporin A (CsA) is a molecule with well-known immunosuppressive properties. As it also acts on the opening of mitochondrial permeability transition pore (mPTP), CsA has been evaluated for ischemic heart diseases (IHD). However, its distribution throughout the body and its physicochemical characteristics strongly limit the use of CsA for intravenous administration. In this context, nanoparticles (NPs) have emerged as an opportunity to circumvent the above-mentioned limitations. We have developed in our laboratory an innovative nanoformulation based on the covalent bond between squalene (Sq) and cyclosporin A to avoid burst release phenomena and increase drug loading. After a thorough characterization of the bioconjugate, we proceeded with a nanoprecipitation in aqueous medium in order to obtain SqCsA NPs of well-defined size. The SqCsA NPs were further characterized using dynamic light scattering (DLS), cryogenic transmission electron microscopy (cryoTEM), and high-performance liquid chromatography (HPLC), and their cytotoxicity was evaluated. As the goal is to employ them for IHD, we evaluated the cardioprotective capacity on two cardiac cell lines. A strong cardioprotective effect was observed on cardiomyoblasts subjected to experimental hypoxia/reoxygenation. Further research is needed in order to understand the mechanisms of action of SqCsA NPs in cells. This new formulation of CsA could pave the way for possible medical application.
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Affiliation(s)
- Amandine Gendron
- Institut Galien Paris-Saclay, Université Paris-Saclay, CNRS UMR 8612, 92296 Châtenay-Malabry, France; (A.G.); (N.L.L.T.); (R.B.); (A.R.); (D.D.)
| | - Natalie Lan Linh Tran
- Institut Galien Paris-Saclay, Université Paris-Saclay, CNRS UMR 8612, 92296 Châtenay-Malabry, France; (A.G.); (N.L.L.T.); (R.B.); (A.R.); (D.D.)
- Namur Nanosafety Centre, Department of Pharmacy, Namur Research Institute for Life Sciences (NARILIS), University of Namur (UNamur), 5000 Namur, Belgium;
| | - Julie Laloy
- Namur Nanosafety Centre, Department of Pharmacy, Namur Research Institute for Life Sciences (NARILIS), University of Namur (UNamur), 5000 Namur, Belgium;
| | - Romain Brusini
- Institut Galien Paris-Saclay, Université Paris-Saclay, CNRS UMR 8612, 92296 Châtenay-Malabry, France; (A.G.); (N.L.L.T.); (R.B.); (A.R.); (D.D.)
| | - Aurélie Rachet
- Institut Galien Paris-Saclay, Université Paris-Saclay, CNRS UMR 8612, 92296 Châtenay-Malabry, France; (A.G.); (N.L.L.T.); (R.B.); (A.R.); (D.D.)
- Institute for Integrative Biology of the Cell (I2BC), Université Paris-Saclay, CEA, CNRS, 91198 Gif-sur-Yvette, France
| | - Frédéric Gobeaux
- CEA, CNRS, NIMBE, Université Paris-Saclay, CEA-Saclay, 91191 Gif sur Yvette, France;
| | - Valérie Nicolas
- Ingénierie et Plateformes au Service de l’Innovation (IPSIT), UMS IPSIT Université Paris-Saclay—US 31 INSERM—UMS 3679 CNRS, Plate-forme d’imagerie cellulaire MIPSIT, 92290 Châtenay-Malabry, France;
| | - Pierre Chaminade
- Lipides: Systèmes Analytiques et Biologiques, Université Paris-Saclay, 92296 Châtenay-Malabry, France; (P.C.); (S.A.)
| | - Sonia Abreu
- Lipides: Systèmes Analytiques et Biologiques, Université Paris-Saclay, 92296 Châtenay-Malabry, France; (P.C.); (S.A.)
| | - Didier Desmaële
- Institut Galien Paris-Saclay, Université Paris-Saclay, CNRS UMR 8612, 92296 Châtenay-Malabry, France; (A.G.); (N.L.L.T.); (R.B.); (A.R.); (D.D.)
| | - Mariana Varna
- Institut Galien Paris-Saclay, Université Paris-Saclay, CNRS UMR 8612, 92296 Châtenay-Malabry, France; (A.G.); (N.L.L.T.); (R.B.); (A.R.); (D.D.)
- Correspondence: ; Tel.: +33-0146835721
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15
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Alves D, Curvello R, Henderson E, Kesarwani V, Walker JA, Leguizamon SC, McLiesh H, Raghuwanshi VS, Samadian H, Wood EM, McQuilten ZK, Graham M, Wieringa M, Korman TM, Scott TF, Banaszak Holl MM, Garnier G, Corrie SR. Rapid Gel Card Agglutination Assays for Serological Analysis Following SARS-CoV-2 Infection in Humans. ACS Sens 2020; 5:2596-2603. [PMID: 32672954 PMCID: PMC7370531 DOI: 10.1021/acssensors.0c01050] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2020] [Accepted: 07/02/2020] [Indexed: 12/24/2022]
Abstract
High-throughput and rapid serology assays to detect the antibody response specific to severe acute respiratory syndrome-coronavirus-2 (SARS-CoV-2) in human blood samples are urgently required to improve our understanding of the effects of COVID-19 across the world. Short-term applications include rapid case identification and contact tracing to limit viral spread, while population screening to determine the extent of viral infection across communities is a longer-term need. Assays developed to address these needs should match the ASSURED criteria. We have identified agglutination tests based on the commonly employed blood typing methods as a viable option. These blood typing tests are employed in hospitals worldwide, are high-throughput, fast (10-30 min), and automated in most cases. Herein, we describe the application of agglutination assays to SARS-CoV-2 serology testing by combining column agglutination testing with peptide-antibody bioconjugates, which facilitate red cell cross-linking only in the presence of plasma containing antibodies against SARS-CoV-2. This simple, rapid, and easily scalable approach has immediate application in SARS-CoV-2 serological testing and is a useful platform for assay development beyond the COVID-19 pandemic.
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Affiliation(s)
- Diana Alves
- Department of Chemical Engineering,
ARC Centre of Excellence in Convergent BioNano Science and Technology,
Monash University, Clayton, Victoria
3800, Australia
- Bioresource Processing Research
Institute of Australia (BioPRIA), Monash
University, Clayton, Victoria 3800,
Australia
| | - Rodrigo Curvello
- Department of Chemical Engineering,
ARC Centre of Excellence in Convergent BioNano Science and Technology,
Monash University, Clayton, Victoria
3800, Australia
- Bioresource Processing Research
Institute of Australia (BioPRIA), Monash
University, Clayton, Victoria 3800,
Australia
| | - Edward Henderson
- Department of Chemical Engineering,
ARC Centre of Excellence in Convergent BioNano Science and Technology,
Monash University, Clayton, Victoria
3800, Australia
- Bioresource Processing Research
Institute of Australia (BioPRIA), Monash
University, Clayton, Victoria 3800,
Australia
- Centre to Impact AMR,
Monash University, Clayton, Victoria
3800, Australia
| | - Vidhishri Kesarwani
- Department of Chemical Engineering,
ARC Centre of Excellence in Convergent BioNano Science and Technology,
Monash University, Clayton, Victoria
3800, Australia
- Bioresource Processing Research
Institute of Australia (BioPRIA), Monash
University, Clayton, Victoria 3800,
Australia
- Centre to Impact AMR,
Monash University, Clayton, Victoria
3800, Australia
| | - Julia A. Walker
- Department of Chemical Engineering,
ARC Centre of Excellence in Convergent BioNano Science and Technology,
Monash University, Clayton, Victoria
3800, Australia
- Bioresource Processing Research
Institute of Australia (BioPRIA), Monash
University, Clayton, Victoria 3800,
Australia
- Centre to Impact AMR,
Monash University, Clayton, Victoria
3800, Australia
- Monash Institute of Pharmaceutical
Sciences, Monash University, Parkville,
Victoria 3052, Australia
| | - Samuel C. Leguizamon
- Department of Chemical Engineering,
ARC Centre of Excellence in Convergent BioNano Science and Technology,
Monash University, Clayton, Victoria
3800, Australia
- Bioresource Processing Research
Institute of Australia (BioPRIA), Monash
University, Clayton, Victoria 3800,
Australia
- Department of Materials Science and
Engineering, Monash University, Clayton,
Victoria 3800, Australia
- Department of Chemical Engineering,
University of Michigan, Ann Arbor,
Michigan 48109, United States
| | - Heather McLiesh
- Department of Chemical Engineering,
ARC Centre of Excellence in Convergent BioNano Science and Technology,
Monash University, Clayton, Victoria
3800, Australia
- Bioresource Processing Research
Institute of Australia (BioPRIA), Monash
University, Clayton, Victoria 3800,
Australia
| | - Vikram Singh Raghuwanshi
- Department of Chemical Engineering,
ARC Centre of Excellence in Convergent BioNano Science and Technology,
Monash University, Clayton, Victoria
3800, Australia
- Bioresource Processing Research
Institute of Australia (BioPRIA), Monash
University, Clayton, Victoria 3800,
Australia
| | - Hajar Samadian
- Department of Chemical Engineering,
ARC Centre of Excellence in Convergent BioNano Science and Technology,
Monash University, Clayton, Victoria
3800, Australia
- Bioresource Processing Research
Institute of Australia (BioPRIA), Monash
University, Clayton, Victoria 3800,
Australia
| | - Erica M. Wood
- Department of Clinical Haematology,
Monash Health, Clayton, Victoria
3168, Australia
- Department of Epidemiology and
Preventive Medicine, Monash University,
Melbourne, Victoria 3004, Australia
| | - Zoe K. McQuilten
- Department of Clinical Haematology,
Monash Health, Clayton, Victoria
3168, Australia
- Department of Epidemiology and
Preventive Medicine, Monash University,
Melbourne, Victoria 3004, Australia
| | - Maryza Graham
- Department of Microbiology,
Monash Health, Clayton, Victoria
3168, Australia
- Monash Infectious Diseases,
Monash Health, Clayton, Victoria
3168, Australia
- Department of Clinical Sciences,
Monash University, Clayton, Victoria
3168, Australia
| | - Megan Wieringa
- Department of Microbiology,
Monash Health, Clayton, Victoria
3168, Australia
- Department of Clinical Sciences,
Monash University, Clayton, Victoria
3168, Australia
| | - Tony M. Korman
- Department of Microbiology,
Monash Health, Clayton, Victoria
3168, Australia
- Monash Infectious Diseases,
Monash Health, Clayton, Victoria
3168, Australia
- Center for Inflammatory Diseases,
Department of Medicine, Monash University,
Clayton, Victoria 3800, Australia
| | - Timothy F. Scott
- Department of Chemical Engineering,
ARC Centre of Excellence in Convergent BioNano Science and Technology,
Monash University, Clayton, Victoria
3800, Australia
- Bioresource Processing Research
Institute of Australia (BioPRIA), Monash
University, Clayton, Victoria 3800,
Australia
- Department of Materials Science and
Engineering, Monash University, Clayton,
Victoria 3800, Australia
| | - Mark M. Banaszak Holl
- Department of Chemical Engineering,
ARC Centre of Excellence in Convergent BioNano Science and Technology,
Monash University, Clayton, Victoria
3800, Australia
- Bioresource Processing Research
Institute of Australia (BioPRIA), Monash
University, Clayton, Victoria 3800,
Australia
| | - Gil Garnier
- Department of Chemical Engineering,
ARC Centre of Excellence in Convergent BioNano Science and Technology,
Monash University, Clayton, Victoria
3800, Australia
- Bioresource Processing Research
Institute of Australia (BioPRIA), Monash
University, Clayton, Victoria 3800,
Australia
| | - Simon R. Corrie
- Department of Chemical Engineering,
ARC Centre of Excellence in Convergent BioNano Science and Technology,
Monash University, Clayton, Victoria
3800, Australia
- Bioresource Processing Research
Institute of Australia (BioPRIA), Monash
University, Clayton, Victoria 3800,
Australia
- Centre to Impact AMR,
Monash University, Clayton, Victoria
3800, Australia
- Monash Institute of Pharmaceutical
Sciences, Monash University, Parkville,
Victoria 3052, Australia
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16
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Abstract
Although insulin analogs have markedly improved glycemic control for people with diabetes, glycemic excursions still cause major health problems and complications. In particular, the narrow therapeutic window of current insulin therapy makes it extremely difficult to maintain normoglycemia without risking severe hypoglycemia. Currently, there are no FDA-approved insulin therapeutics whose bioactivity is regulated by blood glucose levels. This review discusses recent progress on developing glucose-responsive insulin (GRI) bioconjugates without the need of exogenous matrices. Through this approach, tremendous efforts have been made over the years to demonstrate the promise of better glycemic control and reduced risk of hypoglycemia. Last, we discuss future directions of GRI development with a goal to maximize the glucose responsiveness.
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Affiliation(s)
- Maria M. Disotuar
- Department of Biochemistry, University
of Utah, Salt Lake City, UT, USA
| | - Diao Chen
- Department of Biochemistry, University
of Utah, Salt Lake City, UT, USA
| | - Nai-Pin Lin
- Department of Biochemistry, University
of Utah, Salt Lake City, UT, USA
| | - Danny Hung-Chieh Chou
- Department of Biochemistry, University
of Utah, Salt Lake City, UT, USA
- Danny Hung-Chieh Chou, PhD, Department of
Biochemistry, University of Utah, 15 N Medical Drive East 4100, Salt Lake City
UT 84112, USA.
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17
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Harding CM, Feldman MF. Glycoengineering bioconjugate vaccines, therapeutics, and diagnostics in E. coli. Glycobiology 2020; 29:519-529. [PMID: 30989179 DOI: 10.1093/glycob/cwz031] [Citation(s) in RCA: 46] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2019] [Revised: 04/05/2019] [Accepted: 04/11/2019] [Indexed: 12/23/2022] Open
Abstract
The first, general glycosylation pathway in bacteria, the N-linked glycosylation system of Campylobacter jejuni, was discovered two decades ago. Since then, many diverse prokaryotic glycosylation systems have been characterized, including O-linked glycosylation systems that have no homologous counterparts in eukaryotic organisms. Shortly after these discoveries, glycosylation pathways were recombinantly introduced into E. coli creating the field of bacterial glycoengineering. Bacterial glycoengineering is an emerging biotechnological tool that harnesses prokaryotic glycosylation systems for the generation of recombinantly glycosylated proteins using E. coli as a host. Over the last decade, as our understanding of prokaryotic glycosylation systems has advanced, so too has the glycoengineering toolbox. Currently, glycoengineering utilizes two broad approaches to recombinantly glycosylate proteins, both of which can generate N- or O-linkages: oligosaccharyltransferase (OTase)-dependent and OTase-independent. This review discusses the applications of these bacterial glycoengineering techniques as they relate to the development of glycoconjugate vaccines, therapeutic proteins, and diagnostics.
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Affiliation(s)
| | - Mario F Feldman
- VaxNewMo, St. Louis, MO, USA.,Department of Molecular Microbiology, Washington University School of Medicine in St. Louis, St. Louis, Missouri, USA
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18
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Messina MS, Messina KMM, Bhattacharya A, Montgomery HR, Maynard HD. Preparation of Biomolecule-Polymer Conjugates by Grafting-From Using ATRP, RAFT, or ROMP. Prog Polym Sci 2020; 100:101186. [PMID: 32863465 PMCID: PMC7453843 DOI: 10.1016/j.progpolymsci.2019.101186] [Citation(s) in RCA: 63] [Impact Index Per Article: 15.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Biomolecule-polymer conjugates are constructs that take advantage of the functional or otherwise beneficial traits inherent to biomolecules and combine them with synthetic polymers possessing specially tailored properties. The rapid development of novel biomolecule-polymer conjugates based on proteins, peptides, or nucleic acids has ushered in a variety of unique materials, which exhibit functional attributes including thermo-responsiveness, exceptional stability, and specialized specificity. Key to the synthesis of new biomolecule-polymer hybrids is the use of controlled polymerization techniques coupled with either grafting-from, grafting-to, or grafting-through methodology, each of which exhibit distinct advantages and/or disadvantages. In this review, we present recent progress in the development of biomolecule-polymer conjugates with a focus on works that have detailed the use of grafting-from methods employing ATRP, RAFT, or ROMP.
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Affiliation(s)
- Marco S Messina
- Department of Chemistry and Biochemistry, University of California, Los Angeles, 607 Charles E. Young Drive East, Los Angeles, California 90095-1569, United States
- California NanoSystems Institute, University of California, Los Angeles, 570 Westwood Plaza, Los Angeles, California 90095-1569, United States
| | - Kathryn M M Messina
- Department of Chemistry and Biochemistry, University of California, Los Angeles, 607 Charles E. Young Drive East, Los Angeles, California 90095-1569, United States
- California NanoSystems Institute, University of California, Los Angeles, 570 Westwood Plaza, Los Angeles, California 90095-1569, United States
| | - Arvind Bhattacharya
- Department of Chemistry and Biochemistry, University of California, Los Angeles, 607 Charles E. Young Drive East, Los Angeles, California 90095-1569, United States
- California NanoSystems Institute, University of California, Los Angeles, 570 Westwood Plaza, Los Angeles, California 90095-1569, United States
| | - Hayden R Montgomery
- Department of Chemistry and Biochemistry, University of California, Los Angeles, 607 Charles E. Young Drive East, Los Angeles, California 90095-1569, United States
- California NanoSystems Institute, University of California, Los Angeles, 570 Westwood Plaza, Los Angeles, California 90095-1569, United States
| | - Heather D Maynard
- Department of Chemistry and Biochemistry, University of California, Los Angeles, 607 Charles E. Young Drive East, Los Angeles, California 90095-1569, United States
- California NanoSystems Institute, University of California, Los Angeles, 570 Westwood Plaza, Los Angeles, California 90095-1569, United States
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19
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Mougin J, Yesylevskyy SO, Bourgaux C, Chapron D, Michel JP, Dosio F, Stella B, Ramseyer C, Couvreur P. Stacking as a Key Property for Creating Nanoparticles with Tunable Shape: The Case of Squalenoyl-Doxorubicin. ACS Nano 2019; 13:12870-12879. [PMID: 31603305 DOI: 10.1021/acsnano.9b05303] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
Abstract
The development of elongated nanoparticles for drug delivery is of growing interest in recent years, due to longer blood circulation and improved efficacy compared to spherical counterparts. Squalenoyl-doxorubicin (SQ-Dox) conjugate was previously shown to form elongated nanoparticles with improved therapeutic efficacy and decreased toxicity compared to free doxorubicin. By using experimental and computational techniques, we demonstrate here that the specific physical properties of SQ-Dox, which include stacking and electrostatic interactions of doxorubicin as well as hydrophobic interactions of squalene, are involved in the formation of nanoassemblies with diverse elongated structures. We show that SQ-Dox bioconjugate concentration, ionic strength, and anion nature can be used to modulate the shape and stiffness of SQ-Dox nanoparticles. As those parameters are involved in nanoparticle behavior in biological media, these findings could bring interesting opportunities for drug delivery and serve as an example for the design of original nanodrugs with stacking properties tuned for particular clinical purposes.
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Affiliation(s)
- Julie Mougin
- Institut Galien Paris-Sud UMR CNRS 8612 , Faculty of Pharmacy, Université Paris-Sud, Université Paris-Saclay , 92290 Châtenay-Malabry , France
| | - Semen O Yesylevskyy
- Department of Physics of Biological Systems , Institute of Physics of the National Academy of Sciences of Ukraine , Prospect Nauky 46 , 03028 Kyiv , Ukraine
- Laboratoire Chrono Environnement UMR CNRS 6249 , Université de Bourgogne Franche-Comté , 16 route de Gray , 25030 Besançon Cedex, France
| | - Claudie Bourgaux
- Institut Galien Paris-Sud UMR CNRS 8612 , Faculty of Pharmacy, Université Paris-Sud, Université Paris-Saclay , 92290 Châtenay-Malabry , France
| | - David Chapron
- Institut Galien Paris-Sud UMR CNRS 8612 , Faculty of Pharmacy, Université Paris-Sud, Université Paris-Saclay , 92290 Châtenay-Malabry , France
| | - Jean-Philippe Michel
- Institut Galien Paris-Sud UMR CNRS 8612 , Faculty of Pharmacy, Université Paris-Sud, Université Paris-Saclay , 92290 Châtenay-Malabry , France
| | - Franco Dosio
- Dipartimento di Scienza e Tecnologia del Farmaco , Università degli Studi di Torino , 10125 Turin , Italy
| | - Barbara Stella
- Dipartimento di Scienza e Tecnologia del Farmaco , Università degli Studi di Torino , 10125 Turin , Italy
| | - Christophe Ramseyer
- Laboratoire Chrono Environnement UMR CNRS 6249 , Université de Bourgogne Franche-Comté , 16 route de Gray , 25030 Besançon Cedex, France
| | - Patrick Couvreur
- Institut Galien Paris-Sud UMR CNRS 8612 , Faculty of Pharmacy, Université Paris-Sud, Université Paris-Saclay , 92290 Châtenay-Malabry , France
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20
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Abstract
In nearly all biosensors, sensitivity is greatly reduced for measurements conducted in biological matrices due to nonspecific binding from off-target molecules. One method to overcome this issue is to design a sensor that enables selective size-based uptake of proteins. Herein, a protein-polymer conjugate thin-film biosensor is fabricated that self-assembles into lamellae containing alternating domains of protein and polymer. Analyte is captured in protein regions while polymer domains restrict diffusion of large molecules. Device sensitivity and size-based exclusion properties are probed using two analytes: streptavidin (SA, 52.8 kDa) and monomeric streptavidin (mSA2, 15.6 kDa). Tuning domain spacing by adjusting polymer molecular weight allows the design of films that relatively freely uptake mSA2 and largely restrict SA diffusion. Furthermore, when detecting the smaller mSA2, no reduction in the limit of detection (LOD) is observed when transitioning from detection in the buffer to detection in biological fluids. As a result, LOD measured in fluid samples is reduced by 2 orders of magnitude compared to a traditional surface-immobilized protein monolayer.
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Affiliation(s)
- Justin M. Paloni
- Department of Chemical Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States
| | - Xue-Hui Dong
- Department of Chemical Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States
| | - Bradley D. Olsen
- Department of Chemical Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States
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21
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Wadhawan A, Chatterjee M, Singh G. Present Scenario of Bioconjugates in Cancer Therapy: A Review. Int J Mol Sci 2019; 20:ijms20215243. [PMID: 31652668 PMCID: PMC6862033 DOI: 10.3390/ijms20215243] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2019] [Revised: 08/24/2019] [Accepted: 08/30/2019] [Indexed: 12/24/2022] Open
Abstract
Cancer is one of the deadliest diseases and poses a risk to people all over the world. Surgery, chemo, and radiation therapy have been the only options available until today to combat this major problem. Chemotherapeutic drugs have been used for treatment for more than 50 years. Unfortunately, these drugs have inherent cytotoxicities and tumor cells have started inducing resistance against these drugs. Other common techniques such as surgery and radiotherapy have their own drawbacks. Therefore, such techniques are incompetent tools to alleviate the disease efficiently without any adverse effects. This scenario has inspired researchers to develop alternative techniques with enhanced therapeutic effects and minimal side effects. Such techniques include targeted therapy, liposomal therapy, hormonal therapy, and immunotherapy, etc. However, these therapies are expensive and not effective enough. Furthermore, researchers have conjugated therapeutic agents or drugs with different molecules, delivery vectors, and/or imaging modalities to combat such problems and enhance the therapeutic effect. This conjugation technique has led to the development of bioconjugation therapy, in which at least one molecule is of biological origin. These bioconjugates are the new therapeutic strategies, having prospective synergistic antitumor effects and have potency to overcome the complications being produced by chemo drugs. Herein, we provide an overview of various bioconjugates developed so far, as well as their classification, characteristics, and targeting approach for cancer. Additionally, the most popular nanostructures based on their organic or inorganic origin (metallic, magnetic, polymeric nanoparticles, dendrimers, and silica nanoparticles) characterized as nanocarriers are also discussed. Moreover, we hope that this review will provide inspiration for researchers to develop better bioconjugates as therapeutic agents.
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Affiliation(s)
- Aishani Wadhawan
- Biotechnology Branch, University Institute of Engineering and Technology, Sector-25, South Campus, Panjab University, Chandigarh Pin code-160014, India.
| | - Mary Chatterjee
- Biotechnology Branch, University Institute of Engineering and Technology, Sector-25, South Campus, Panjab University, Chandigarh Pin code-160014, India.
| | - Gurpal Singh
- Department of Pharmaceutical Sciences, University Institute of Pharmaceutical Sciences, Sector-14, Panjab University, Chandigarh Pin code-160014, India.
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22
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Moses Phiri M, Wingrove Mulder D, Mason S, Christiaan Vorster B. Facile immobilization of glucose oxidase onto gold nanostars with enhanced binding affinity and optimal function. R Soc Open Sci 2019; 6:190205. [PMID: 31218060 PMCID: PMC6549951 DOI: 10.1098/rsos.190205] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/04/2019] [Accepted: 04/05/2019] [Indexed: 05/11/2023]
Abstract
Gold nanoparticles provide a user-friendly and efficient surface for immobilization of enzymes and proteins. In this paper, we present a novel approach for enzyme bioconjugation to gold nanostars (AuNSs). AuNSs were modified with l-cysteine (Cys) and covalently bound to N-hydroxysulfosuccinimide (sulfo-NHS) activated intermediate glucose oxidase (GOx) to fabricate a stable and sensitive AuNSs-Cys-GOx bioconjugate complex. Such a strategy has the potential for increased attachment affinity without protein adsorption onto the AuNSs surface. Good dispersity in buffer suspension was observed, as well as stability in high ionic environments. Using the AuNSs-Cys-GOx bioconjugates showed greater sensitivity in the measuring of low concentrations of glucose based on plasmonic and colorimetric detection. Such a novel approach for enzyme immobilization can lead to AuNSs-Cys-GOx bioconjugate complexes that can be used as catalytic nanodevices in nanobiosensors based on oxidases in biomedical applications.
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Affiliation(s)
- Masauso Moses Phiri
- Centre for Human Metabolomics, North-West University, Potchefstroom Campus, Private Bag X6001, Potchefstroom, South Africa
| | | | | | - Barend Christiaan Vorster
- Centre for Human Metabolomics, North-West University, Potchefstroom Campus, Private Bag X6001, Potchefstroom, South Africa
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23
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Chernikov IV, Vlassov VV, Chernolovskaya EL. Current Development of siRNA Bioconjugates: From Research to the Clinic. Front Pharmacol 2019; 10:444. [PMID: 31105570 PMCID: PMC6498891 DOI: 10.3389/fphar.2019.00444] [Citation(s) in RCA: 121] [Impact Index Per Article: 24.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2019] [Accepted: 04/08/2019] [Indexed: 12/12/2022] Open
Abstract
Small interfering RNAs (siRNAs) acting via RNA interference mechanisms are able to recognize a homologous mRNA sequence in the cell and induce its degradation. The main problems in the development of siRNA-based drugs for therapeutic use are the low efficiency of siRNA delivery to target cells and the degradation of siRNAs by nucleases in biological fluids. Various approaches have been proposed to solve the problem of siRNA delivery in vivo (e.g., viruses, cationic lipids, polymers, nanoparticles), but all have limitations for therapeutic use. One of the most promising approaches to solve the problem of siRNA delivery to target cells is bioconjugation; i.e., the covalent connection of siRNAs with biogenic molecules (lipophilic molecules, antibodies, aptamers, ligands, peptides, or polymers). Bioconjugates are "ideal nanoparticles" since they do not need a positive charge to form complexes, are less toxic, and are less effectively recognized by components of the immune system because of their small size. This review is focused on strategies and principles for constructing siRNA bioconjugates for in vivo use.
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Affiliation(s)
- Ivan V Chernikov
- Laboratory of Nucleic Acids Biochemistry, Institute of Chemical Biology and Fundamental Medicine, Siberian Branch of the Russian Academy of Sciences, Novosibirsk, Russia
| | - Valentin V Vlassov
- Laboratory of Nucleic Acids Biochemistry, Institute of Chemical Biology and Fundamental Medicine, Siberian Branch of the Russian Academy of Sciences, Novosibirsk, Russia
| | - Elena L Chernolovskaya
- Laboratory of Nucleic Acids Biochemistry, Institute of Chemical Biology and Fundamental Medicine, Siberian Branch of the Russian Academy of Sciences, Novosibirsk, Russia
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24
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Lopalco A, Cutrignelli A, Denora N, Perrone M, Iacobazzi RM, Fanizza E, Lopedota A, Depalo N, de Candia M, Franco M, Laquintana V. Delivery of Proapoptotic Agents in Glioma Cell Lines by TSPO Ligand-Dextran Nanogels. Int J Mol Sci 2018; 19:ijms19041155. [PMID: 29641449 PMCID: PMC5979576 DOI: 10.3390/ijms19041155] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2018] [Revised: 04/07/2018] [Accepted: 04/08/2018] [Indexed: 12/22/2022] Open
Abstract
Translocator protein 18-kDa (TSPO) is a versatile mitochondrial target for molecular imaging and therapy. Moreover, selective TSPO ligands have been widely investigated for diagnostic purposes and explored to target drug delivery systems directed to cancer cells overexpressing TSPO. Indeed, poly(d,l-lactic-co-glycolic acid (PLGA) polymers and nanocarriers decorated with TSPO ligands are capable of transporting TSPO ligands inside cancer cells, inducing survival inhibition in cancer cells and producing mitochondrial morphology modification. The aim of this work was to prepare nanogels (NGs) made with TSPO ligand dextran conjugates (TSPO-Dex) that are useful as potential delivery systems of two TSPO ligands as apoptotic agents. Synthesis and complete characterization of TSPO–dextran conjugates, an average molecular weights analysis, TSPO ligand release profiles, thermal behaviour and swelling studies were achieved. NG preparation, characterization and in vitro biological studies were also performed. The release of TSPO ligands released from dextran conjugates at 37 °C occurred in human serum at a faster rate than that detected in phosphate buffer. Cytotoxicity studies demonstrated that NGs produced from TSPO ligand–dextran conjugates induce survival inhibition in rat C6 glioma cell lines. Cellular uptake was also proven by fluorescence microscopy.
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Affiliation(s)
- Antonio Lopalco
- Department of Pharmacy-Drug Sciences, University of Bari "Aldo Moro", Via Orabona, St. 4, 70125 Bari, Italy.
| | - Annalisa Cutrignelli
- Department of Pharmacy-Drug Sciences, University of Bari "Aldo Moro", Via Orabona, St. 4, 70125 Bari, Italy.
| | - Nunzio Denora
- Department of Pharmacy-Drug Sciences, University of Bari "Aldo Moro", Via Orabona, St. 4, 70125 Bari, Italy.
- Institute for Physical and Chemical Processes (IPCF)-CNR, SS Bari, Via Orabona, St. 4, 70125 Bari, Italy.
| | - Mara Perrone
- Department of Pharmacy-Drug Sciences, University of Bari "Aldo Moro", Via Orabona, St. 4, 70125 Bari, Italy.
- Istituto tumori IRCCS "Giovanni Paolo II", Flacco, St. 65, 70124 Bari, Italy.
| | | | - Elisabetta Fanizza
- Institute for Physical and Chemical Processes (IPCF)-CNR, SS Bari, Via Orabona, St. 4, 70125 Bari, Italy.
- Department of Chemistry, University of Bari "Aldo Moro", 70125 Bari, Italy.
| | - Angela Lopedota
- Department of Pharmacy-Drug Sciences, University of Bari "Aldo Moro", Via Orabona, St. 4, 70125 Bari, Italy.
| | - Nicoletta Depalo
- Institute for Physical and Chemical Processes (IPCF)-CNR, SS Bari, Via Orabona, St. 4, 70125 Bari, Italy.
| | - Modesto de Candia
- Department of Pharmacy-Drug Sciences, University of Bari "Aldo Moro", Via Orabona, St. 4, 70125 Bari, Italy.
| | - Massimo Franco
- Department of Pharmacy-Drug Sciences, University of Bari "Aldo Moro", Via Orabona, St. 4, 70125 Bari, Italy.
| | - Valentino Laquintana
- Department of Pharmacy-Drug Sciences, University of Bari "Aldo Moro", Via Orabona, St. 4, 70125 Bari, Italy.
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25
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Sun F, Oh S, Kim J, Kato T, Kim HJ, Lee J, Park EY. Enhanced Internalization of Macromolecular Drugs into Mycobacterium smegmatis with the Assistance of Silver Nanoparticles. J Microbiol Biotechnol 2018; 27:1483-1490. [PMID: 28595381 DOI: 10.4014/jmb.1612.12041] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/01/2022]
Abstract
In this study, silver nanoparticles (AgNPs) were synthesized by the citrate reduction process and, with the assistance of n-hydroxysuccinimide and 1-ethyl-3-(3-dimethylaminopropyl) carbodiimide, were successfully loaded with the macromolecular drug vancomycin (VAM) to form AgNP-VAM bioconjugates. The synthesized AgNPs, VAM, and AgNP-VAM conjugate were characterized by UV-visible spectroscopy, zeta potential analysis, confocal microscopy, and transmission electron microscopy. The effect of loading VAM onto AgNPs was investigated by testing the internalization of the bioconjugate into Mycobacterium smegmatis. After treatment with the AgNP-VAM conjugate, the bacterial cells showed a significant decrease in UV absorption, indicating that loading of the VAM on AgNPs had vastly improved the drug's internalization compared with that of AgNPs. All the experimental assessments showed that, compared with free AgNPs and VAM, enhanced internalization had been successfully achieved with the AgNP-VAM conjugate, thus leading to significantly better delivery of the macromolecular drug into the M. smegmatis cell. The current research provides a new potential drug delivery system for the treatment of mycobacterial infections..
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Affiliation(s)
- Fangfang Sun
- Research Institute of Green Science and Technology, Shizuoka University, Suruga-ku, Shizuoka 422-8529, Japan.,Department of Biomedical Engineering, College of Life Information Science and Instrument Engineering, Hangzhou Dianzi University, Hangzhou 310018, P.R. China
| | - Sangjin Oh
- Department of Cogno-mechatronics Engineering, Pusan National University, Busan 46241, Republic of Korea
| | - Jeonghyo Kim
- Department of Cogno-mechatronics Engineering, Pusan National University, Busan 46241, Republic of Korea
| | - Tatsuya Kato
- Research Institute of Green Science and Technology, Shizuoka University, Suruga-ku, Shizuoka 422-8529, Japan
| | - Hwa-Jung Kim
- Department of Microbiology and Research Institute for Medical Science, College of Medicine, Chungnam National University, Daejeon 35015, Republic of Korea
| | - Jaebeom Lee
- Department of Cogno-mechatronics Engineering, Pusan National University, Busan 46241, Republic of Korea
| | - Enoch Y Park
- Research Institute of Green Science and Technology, Shizuoka University, Suruga-ku, Shizuoka 422-8529, Japan
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26
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Sun T, Li Y, Huang Y, Zhang Z, Yang W, Du Z, Zhou Y. Targeting glioma stem cells enhances anti-tumor effect of boron neutron capture therapy. Oncotarget 2016; 7:43095-108. [PMID: 27191269 DOI: 10.18632/oncotarget.9355] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2016] [Accepted: 04/26/2016] [Indexed: 02/04/2023] Open
Abstract
The uptake of (10)boron by tumor cells plays an important role for cell damage in boron neutron capture therapy (BNCT). CD133 is frequently expressed in the membrane of glioma stem cells (GSCs), resistant to radiotherapy and chemotherapy, and represents a potential therapeutic target. To increase (10)boron uptake in GSCs, we created a polyamido amine dendrimer, conjugated CD133 monoclonal antibodies, encapsulating mercaptoundecahydrododecaborate (BSH) in void spaces, and monitored the uptake of the bioconjugate nanoparticles by GSCs in vitro and in vivo. Fluorescence microscopy showed the specific uptake of the bioconjugate nanoparticles by CD133-positive GSCs. Treatment with the biconjugate nanoparticles resulted in a significant lethal effect after neutron radiation due to efficient and CD133-independent cellular targeting and uptake in CD133-expressing GSCs. A significantly longer survival occurred in combination with the biconjugate nanoparticles and BSH compared with BSH alone in human intracranial GBM models employing CD133-positive GSCs xenografts. Our data demonstrated that this bioconjugate nanoparticle targets human CD133-positive GSCs and is a potential boron agent in BNCT.
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27
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Abbas IM, Schwaar T, Bienwald F, Weller MG. Predictable Peptide Conjugation Ratios by Activation of Proteins with Succinimidyl Iodoacetate (SIA). Methods Protoc 2017; 1:mps1010002. [PMID: 31164550 PMCID: PMC6526413 DOI: 10.3390/mps1010002] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2017] [Revised: 09/12/2017] [Accepted: 09/14/2017] [Indexed: 12/30/2022] Open
Abstract
The small heterobifunctional linker succinimidyl iodoacetate (SIA) was examined for the preparation of peptide–protein bioconjugates with predicable conjugation ratios. For many conjugation protocols, the protein is either treated with a reductant to cleave disulfide bonds or is reacted with thiolation chemicals, such as Traut’s reagent. Both approaches are difficult to control, need individual optimization and often lead to unsatisfactory results. In another popular approach, a heterobifunctional linker with a N-hydroxysuccinimide (NHS) and a maleimide functionality is applied to the protein. After the activation of some lysine ε-amino groups with the NHS ester functionality, a cysteine-containing peptide is attached to the activated carrier protein via maleimide. Particularly, the maleimide reaction leads to some unwanted byproducts or even cleavage of the linker. Many protocols end up with conjugates with unpredictable and irreproducible conjugation ratios. In addition, the maleimide-thiol addition product should be assumed immunogenic in vivo. To avoid these and other disadvantages of the maleimide approach, we examined the known linker succinimidyl iodoacetate (SIA) in more detail and developed two protocols, which lead to peptide–protein conjugates with predefined average conjugation ratios. This holds potential to eliminate tedious and expensive optimization steps for the synthesis of a bioconjugate of optimal composition.
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Affiliation(s)
- Ioana M Abbas
- Federal Institute for Materials Research and Testing (BAM), Division 1.5 Protein Analysis, Richard-Willstätter-Strasse 11, 12489 Berlin, Germany.
- Humboldt-Universität zu Berlin, School of Analytical Sciences Adlershof, Unter den Linden 6, 10099 Berlin, Germany.
| | - Timm Schwaar
- Federal Institute for Materials Research and Testing (BAM), Division 1.5 Protein Analysis, Richard-Willstätter-Strasse 11, 12489 Berlin, Germany.
- Humboldt-Universität zu Berlin, Department of Chemistry, Brook-Taylor-Str. 2, 12489 Berlin, Germany.
| | - Frank Bienwald
- Federal Institute for Materials Research and Testing (BAM), Division 1.5 Protein Analysis, Richard-Willstätter-Strasse 11, 12489 Berlin, Germany.
- Humboldt-Universität zu Berlin, Department of Chemistry, Brook-Taylor-Str. 2, 12489 Berlin, Germany.
| | - Michael G Weller
- Federal Institute for Materials Research and Testing (BAM), Division 1.5 Protein Analysis, Richard-Willstätter-Strasse 11, 12489 Berlin, Germany.
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28
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Lewis LM, Pizzo ME, Sinha S, Ahmed SS, Joseph L. Visible and Sub-visible Particle Formation for a Model Bioconjugate. AAPS PharmSciTech 2017; 18:926-931. [PMID: 27161337 DOI: 10.1208/s12249-016-0540-0] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2016] [Accepted: 04/25/2016] [Indexed: 01/13/2023] Open
Abstract
The time-course and extent of visible particle (VP) and sub-visible particle (SVP) formation was monitored as a function of interfacial area (IA) for a model bioconjugate. To facilitate particle formation, the bioconjugate was agitated in a glass vial and exposed to IAs up to 478 mm2. Since vials had equal fill and headspace volumes, the area of the air-water interface was varied by placing vials on angled blocks at 0°, 30°, 60°, or 90° from the horizontal. A significant increase in visible and sub-visible particle formation was observed with increasing air-water IA. Exposure to IAs below ∼305 mm2 resulted in the formation of very few particles, while IAs > ∼305 mm2 resulted in substantial particle formation. Visible and sub-visible particle morphology varied with interfacial area and time. The sub-visible particles initially increased with time but did not reach steady state; instead the initial increase was followed by complete depletion. These phenomena indicate that visible particle formation likely increased at the expense of the sub-visible particle population and demonstrate a potential link between the two particle populations for this model bioconjugate. Initiation of particle formation did not result in corresponding decreases in protein concentration or increases in soluble aggregates. However, extended agitation time resulted in a significant decrease in protein concentration.
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29
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Hellmuth I, Freund I, Schlöder J, Seidu-Larry S, Thüring K, Slama K, Langhanki J, Kaloyanova S, Eigenbrod T, Krumb M, Röhm S, Peneva K, Opatz T, Jonuleit H, Dalpke AH, Helm M. Bioconjugation of Small Molecules to RNA Impedes Its Recognition by Toll-Like Receptor 7. Front Immunol 2017; 8:312. [PMID: 28392787 PMCID: PMC5364167 DOI: 10.3389/fimmu.2017.00312] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2016] [Accepted: 03/06/2017] [Indexed: 12/25/2022] Open
Abstract
A fundamental mechanism of the innate immune system is the recognition, via extra- and intracellular pattern-recognition receptors, of pathogen-associated molecular patterns. A prominent example is represented by foreign nucleic acids, triggering the activation of several signaling pathways. Among these, the endosomal toll-like receptor 7 (TLR7) is known to be activated by single-stranded RNA (ssRNA), which can be specifically influenced through elements of sequence structure and posttranscriptional modifications. Furthermore, small molecules TLR7 agonists (smTLRa) are applied as boosting adjuvants in vaccination processes. In this context, covalent conjugations between adjuvant and vaccines have been reported to exhibit synergistic effects. Here, we describe a concept to chemically combine three therapeutic functions in one RNA bioconjugate. This consists in the simultaneous TLR7 stimulation by ssRNA and smTLRa as well as the therapeutic function of the RNA itself, e.g., as a vaccinating or knockdown agent. We have hence synthesized bioconjugates of mRNA and siRNA containing covalently attached smTLRa and tested their function in TLR7 stimulation. Strikingly, the bioconjugates displayed decreased rather than synergistically increased stimulation. The decrease was distinct from the antagonistic action of an siRNA bearing a Gm motive, as observed by direct comparison of the effects in the presence of otherwise stimulatory RNA. In summary, these investigations showed that TRL7 activation can be impeded by bioconjugation of small molecules to RNA.
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Affiliation(s)
- Isabell Hellmuth
- Institute of Pharmacy and Biochemistry, Johannes Gutenberg-University Mainz , Mainz , Germany
| | - Isabel Freund
- Department of Infectious Diseases, Medical Microbiology and Hygiene, University of Heidelberg , Heidelberg , Germany
| | - Janine Schlöder
- Department of Dermatology, University Medical Center of the Johannes Gutenberg-University Mainz , Mainz , Germany
| | - Salifu Seidu-Larry
- Institute of Pharmacy and Biochemistry, Johannes Gutenberg-University Mainz , Mainz , Germany
| | - Kathrin Thüring
- Institute of Pharmacy and Biochemistry, Johannes Gutenberg-University Mainz , Mainz , Germany
| | - Kaouthar Slama
- Institute of Pharmacy and Biochemistry, Johannes Gutenberg-University Mainz , Mainz , Germany
| | - Jens Langhanki
- Institute of Organic Chemistry, Johannes Gutenberg-University Mainz , Mainz , Germany
| | | | - Tatjana Eigenbrod
- Department of Infectious Diseases, Medical Microbiology and Hygiene, University of Heidelberg , Heidelberg , Germany
| | - Matthias Krumb
- Institute of Organic Chemistry, Johannes Gutenberg-University Mainz , Mainz , Germany
| | - Sandra Röhm
- Max Planck Institute for Polymer Research (MPG) , Mainz , Germany
| | - Kalina Peneva
- Max Planck Institute for Polymer Research (MPG) , Mainz , Germany
| | - Till Opatz
- Institute of Organic Chemistry, Johannes Gutenberg-University Mainz , Mainz , Germany
| | - Helmut Jonuleit
- Department of Dermatology, University Medical Center of the Johannes Gutenberg-University Mainz , Mainz , Germany
| | - Alexander H Dalpke
- Department of Infectious Diseases, Medical Microbiology and Hygiene, University of Heidelberg , Heidelberg , Germany
| | - Mark Helm
- Institute of Pharmacy and Biochemistry, Johannes Gutenberg-University Mainz , Mainz , Germany
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30
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Zhu S, Yang Q, Antaris AL, Yue J, Ma Z, Wang H, Huang W, Wan H, Wang J, Diao S, Zhang B, Li X, Zhong Y, Yu K, Hong G, Luo J, Liang Y, Dai H. Molecular imaging of biological systems with a clickable dye in the broad 800- to 1,700-nm near-infrared window. Proc Natl Acad Sci U S A 2017; 114:962-7. [PMID: 28096386 DOI: 10.1073/pnas.1617990114] [Citation(s) in RCA: 183] [Impact Index Per Article: 26.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022] Open
Abstract
Fluorescence imaging multiplicity of biological systems is an area of intense focus, currently limited to fluorescence channels in the visible and first near-infrared (NIR-I; ∼700-900 nm) spectral regions. The development of conjugatable fluorophores with longer wavelength emission is highly desired to afford more targeting channels, reduce background autofluorescence, and achieve deeper tissue imaging depths. We have developed NIR-II (1,000-1,700 nm) molecular imaging agents with a bright NIR-II fluorophore through high-efficiency click chemistry to specific molecular antibodies. Relying on buoyant density differences during density gradient ultracentrifugation separations, highly pure NIR-II fluorophore-antibody conjugates emitting ∼1,100 nm were obtained for use as molecular-specific NIR-II probes. This facilitated 3D staining of ∼170-μm histological brain tissues sections on a home-built confocal microscope, demonstrating multicolor molecular imaging across both the NIR-I and NIR-II windows (800-1,700 nm).
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Levengood MR, Zhang X, Hunter JH, Emmerton KK, Miyamoto JB, Lewis TS, Senter PD. Orthogonal Cysteine Protection Enables Homogeneous Multi-Drug Antibody-Drug Conjugates. Angew Chem Int Ed Engl 2016; 56:733-737. [PMID: 27966822 PMCID: PMC5299463 DOI: 10.1002/anie.201608292] [Citation(s) in RCA: 76] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2016] [Revised: 10/27/2016] [Indexed: 02/05/2023]
Abstract
A strategy for the preparation of homogeneous antibody–drug conjugates (ADCs) containing multiple payloads has been developed. This approach utilizes sequential unmasking of cysteine residues with orthogonal protection to enable site‐specific conjugation of each drug. In addition, because the approach utilizes conjugation to native antibody cysteine residues, it is widely applicable and enables high drug loading for improved ADC potency. To highlight the benefits of ADC dual drug delivery, this strategy was applied to the preparation of ADCs containing two classes of auristatin drug‐linkers that have differing physiochemical properties and exert complementary anti‐cancer activities. Dual‐auristatin ADCs imparted activity in cell line and xenograft models that are refractory to ADCs comprised of the individual auristatin components. This work presents a facile method for construction of potent dual‐drug ADCs and demonstrates how delivery of multiple cytotoxic warheads can lead to improved ADC activities. Lastly, we anticipate that the conditions utilized herein for orthogonal cysteine unmasking are not restricted to ADCs and can be broadly utilized for site‐specific protein modification.
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Affiliation(s)
| | - Xinqun Zhang
- Seattle Genetics, Inc., 21823 30thDrive SE, Bothell, WA, USA
| | - Joshua H Hunter
- Seattle Genetics, Inc., 21823 30thDrive SE, Bothell, WA, USA
| | - Kim K Emmerton
- Seattle Genetics, Inc., 21823 30thDrive SE, Bothell, WA, USA
| | | | - Timothy S Lewis
- Seattle Genetics, Inc., 21823 30thDrive SE, Bothell, WA, USA
| | - Peter D Senter
- Seattle Genetics, Inc., 21823 30thDrive SE, Bothell, WA, USA
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32
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Lee C, Ji K, Simanek EE. Functionalization of a Triazine Dendrimer Presenting Four Maleimides on the Periphery and a DOTA Group at the Core. Molecules 2016; 21:335. [PMID: 26978338 DOI: 10.3390/molecules21030335] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2016] [Revised: 02/25/2016] [Accepted: 02/26/2016] [Indexed: 12/22/2022] Open
Abstract
A readily and rapidly accessible triazine dendrimer was manipulated in four steps with 23% overall yield to give a construct displaying four maleimide groups and DOTA. The maleimide groups of the dendrimer are sensitive to hydrolysis under basic conditions. The addition of up to four molecules of water can be observed via mass spectrometry and HPLC. The evolution in the alkene region of the ¹H-NMR--the transformation of the maleimide singlet to the appearance of two doublets--is consistent with imide hydrolysis and not the Michael addition. The hydrolysis events that proceeded over hours are sufficiently slower than the desired thiol addition reactions that occur in minutes. The addition of thiols to maleimides can be accomplished in a variety of solvents. The thiols examined derived from cysteine and include the protected amino acid, a protected dipeptide, and native oligopeptides containing either 9 or 18 amino acids. The addition reactions were monitored with HPLC and mass spectrometry in most cases. Complete substitution was observed for small molecule reactants. The model peptides containing nine or eighteen amino acids provided a mixture of products averaging between 3 and 4 substitutions/dendrimer. The functionalization of the chelate group with gadolinium was also accomplished easily.
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33
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Buckley ST, Hubálek F, Rahbek UL. Chemically modified peptides and proteins - critical considerations for oral delivery. Tissue Barriers 2016; 4:e1156805. [PMID: 27358754 DOI: 10.1080/21688370.2016.1156805] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2016] [Revised: 02/09/2016] [Accepted: 02/11/2016] [Indexed: 12/19/2022] Open
Abstract
Numerous approaches have been explored to date in the pursuit of delivering peptides or proteins via the oral route. One such example is chemical modification, whereby the native structure of a peptide or protein is tailored to provide a more efficient uptake across the epithelial barrier of the gastrointestinal tract via incorporation of a chemical motif or moiety. In this regard, a diverse array of concepts have been reported, ranging from the exploitation of endogenous transport mechanisms to incorporation of physicochemical modifications in the molecule, which promote more favorable interactions with the absorptive membrane at the cell surface. This review provides an overview of the modification technologies described in the literature and offers insights into some pragmatic considerations pertaining to their translation into clinically viable concepts.
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Uram Ł, Szuster M, Filipowicz A, Gargasz K, Wołowiec S, Wałajtys-Rode E. Different patterns of nuclear and mitochondrial penetration by the G3 PAMAM dendrimer and its biotin-pyridoxal bioconjugate BC-PAMAM in normal and cancer cells in vitro. Int J Nanomedicine 2015; 10:5647-61. [PMID: 26379435 PMCID: PMC4567239 DOI: 10.2147/ijn.s87307] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022] Open
Abstract
The intracellular localization and colocalization of a fluorescently labeled G3 amine-terminated cationic polyamidoamine (PAMAM) dendrimer and its biotin-pyridoxal (BC-PAMAM) bioconjugate were investigated in a concentration-dependent manner in normal human fibroblast (BJ) and squamous epithelial carcinoma (SCC-15) cell lines. After 24 hours treatment, both cell lines revealed different patterns of intracellular dendrimer accumulation depending on their cytotoxic effects. Cancer cells exhibited much higher (20-fold) tolerance for native PAMAM treatment than fibroblasts, whereas BC-PAMAM was significantly toxic only for fibroblasts at 50 µM concentration. Fibroblasts accumulated the native and bioconjugated dendrimers in a concentration-dependent manner at nontoxic range of concentration, with significantly lower bioconjugate loading. After reaching the cytotoxicity level, fluorescein isothiocyanate-PAMAM accumulation remains at high, comparable level. In cancer cells, native PAMAM loading at higher, but not cytotoxic concentrations, was kept at constant level with a sharp increase at toxic concentration. Mander's coefficient calculated for fibroblasts and cancer cells confirmed more efficient native PAMAM penetration as compared to BC-PAMAM. Significant differences in nuclear dendrimer penetration were observed for both cell lines. In cancer cells, PAMAM signals amounted to ~25%-35% of the total nuclei area at all investigated concentrations, with lower level (15%-25%) observed for BC-PAMAM. In fibroblasts, the dendrimer nuclear signal amounted to 15% at nontoxic and up to 70% at toxic concentrations, whereas BC-PAMAM remained at a lower concentration-dependent level (0.3%-20%). Mitochondrial localization of PAMAM and BC-PAMAM revealed similar patterns in both cell lines, depending on the extracellular dendrimer concentration, and presented significantly lower signals from BC-PAMAM, which correlated well with the cytotoxicity.
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Affiliation(s)
- Łukasz Uram
- Bioorganic Chemistry Laboratory, Faculty of Chemistry, Rzeszow University of Technology, Rzeszow, Poland
| | - Magdalena Szuster
- Bioorganic Chemistry Laboratory, Faculty of Chemistry, Rzeszow University of Technology, Rzeszow, Poland
| | - Aleksandra Filipowicz
- Cosmetology Department, University of Information Technology and Management in Rzeszow, Rzeszow, Poland
| | - Krzysztof Gargasz
- Institute of Nursery and Health Sciences, Faculty of Medicine, University of Rzeszow, Rzeszow, Poland
| | - Stanisław Wołowiec
- Institute of Nursery and Health Sciences, Faculty of Medicine, University of Rzeszow, Rzeszow, Poland
| | - Elżbieta Wałajtys-Rode
- Department of Drug Technology and Biotechnology, Faculty of Chemistry, Warsaw University of Technology, Warsaw, Poland
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Montagner IM, Merlo A, Carpanese D, Zuccolotto G, Renier D, Campisi M, Pasut G, Zanovello P, Rosato A. Drug conjugation to hyaluronan widens therapeutic indications for ovarian cancer. Oncoscience 2015; 2:373-81. [PMID: 26097871 PMCID: PMC4468323 DOI: 10.18632/oncoscience.150] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2015] [Accepted: 03/16/2015] [Indexed: 11/25/2022] Open
Abstract
Management of ovarian cancer still requires improvements in therapeutic options. A drug delivery strategy was tested that allows specific targeting of tumor cells in combination with a controlled release of a cytotoxic molecule. To this aim, the efficacy of a loco-regional intraperitoneal treatment with a bioconjugate (ONCOFID-S) derived by chemical linking of SN-38, the active metabolite of irinotecan (CPT-11), to hyaluronan was assessed in a mouse model of ovarian carcinomatosis. In vitro, the bioconjugate selectively interacted with ovarian cancer cells through the CD44 receptor, disclosed a dose-dependent tumor growth inhibition efficacy comparable to that of free SN-38 drug, and inhibited Topoisomerase I function leading to apoptosis by a mechanism involving caspase-3 and -7 activation and PARP cleavage. In vivo, the intraperitoneal administration of ONCOFID-S in tumor-bearing mice did not induce inflammation, and evidenced an improved therapeutic efficacy compared with CPT-11. In conclusion, SN-38 conjugation to hyaluronan significantly improved the profile of in vivo tolerability and widened the field of application of irinotecan. Therefore, this approach can be envisaged as a promising therapeutic strategy for loco-regional treatment of ovarian cancer.
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Affiliation(s)
| | - Anna Merlo
- Veneto Institute of Oncology IOV - IRCCS, Padua, Italy
| | - Debora Carpanese
- Department of Surgery, Oncology and Gastroenterology, University of Padua, Padua, Italy
| | | | | | | | - Gianfranco Pasut
- Department of Pharmaceutical and Pharmacological Sciences, University of Padua, Padua, Italy
| | - Paola Zanovello
- Veneto Institute of Oncology IOV - IRCCS, Padua, Italy ; Department of Surgery, Oncology and Gastroenterology, University of Padua, Padua, Italy
| | - Antonio Rosato
- Veneto Institute of Oncology IOV - IRCCS, Padua, Italy ; Department of Surgery, Oncology and Gastroenterology, University of Padua, Padua, Italy
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Kilinc YB, Akdeste ZM, Koc RC, Bagirova M, Allahverdiyev A. Synthesis and characterization of antigenic influenza A M2e protein peptide-poly(acrylic) acid bioconjugate and determination of toxicity in vitro. Bioengineered 2014; 5:357-62. [PMID: 25482080 DOI: 10.4161/21655979.2014.969131] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
Abstract
The influenza A virus is a critical public health problem that causes epidemics and pandemics, and occurs widely all over the world. Various vaccines against the virus have not provided a solution to the problem. Different approaches, particularly M2e peptide-based vaccines, are available for developing universal vaccines against influenza A. However, it is important to select a suitable carrier to obtain an effective vaccine. Accordingly, studies on the usage of various carriers are ongoing. Particularly, polymer-based carriers have gained importance due to both drug delivery and adjuvant effects. Therefore, bioconjugate of the M2e protein peptide from the influenza A virus covalent bonded with poly(acrylic) acid was synthesized in our study for the first time. The characterization was performed using size-exclusion chromatography and fluorescence spectroscopy; subsequently, it was found that the bioconjugate of the examined lower doses (0.05 and 0.5 mg/ml) have no toxic effects on human cell lines. These results suggest that, in the future, the poly(acrylic) acid bioconjugate of the M2e peptide should be studied in vivo for universal vaccine development against the influenza A virus.
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Key Words
- 7-ADD, 7-aminoactinomycin D
- BSA, bovine serum albumin
- DMEM-F12, dulbecco's modified eagle medium F12
- FBS, fetal bovine serum
- FITC, fluorescein isothiocyanate
- M2e
- M2e, The external domain of influenza A M2 protein
- MCF-7, human breast cancer cell
- MTT, 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide
- PAA, poly(acrylic) acid
- PBS, phosphate buffered saline
- Phe-P, phenylalanine
- RALS, right-angle light scattering
- SEC, size-exclusion chromatography
- Trp-W, tryptophan
- Try-Y, tyrosine
- UV, ultraviolet
- bioconjugate
- influenza A virus
- peptide
- poly(acrylic) acid
- synthetic vaccine
- toxicity
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Affiliation(s)
- Yasemin Budama Kilinc
- a Department of Bioengineering; Faculty of Chemical and Metallurgical Engineering ; Yildiz Technical University ; Esenler-Istanbul , Turkey
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Abstract
Lanthanide bioprobes and bioconjugates are ideal luminescent stains in view of their low propensity to photobleaching, sharp emission lines and long excited state lifetimes permitting time-resolved detection for enhanced sensitivity. We show here how the interplay between physical, chemical and biochemical properties allied to microfluidics engineering leads to self-assembled dinuclear lanthanide luminescent probes illuminating live cells and selectively detecting biomarkers expressed by cancerous human breast cells.
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Affiliation(s)
- Jean-Claude G Bünzli
- Institute of Chemical Sciences and Engineering , École Polytechnique Fédérale de Lausanne , BCH 1402, 1015 Lausanne , Switzerland
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38
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Johnson RP, Chung CW, Jeong YI, Kang DH, Suh H, Kim I. Poly(L-histidine)-tagged 5-aminolevulinic acid prodrugs: new photosensitizing precursors of protoporphyrin IX for photodynamic colon cancer therapy. Int J Nanomedicine 2012; 7:2497-512. [PMID: 22679363 PMCID: PMC3367496 DOI: 10.2147/ijn.s29582] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
Abstract
Background 5-Aminolevulinic acid (ALA) and its derivatives have been widely used in photodynamic therapy. The main drawback associated with ALA-based photodynamic therapy (ALA-PDT) and ALA fluorescence diagnosis results from the hydrophilic nature of ALA and lack of selectivity for tumor versus nontumor cells. The application of certain triggers, such as pH, into conventional sensitizers for controllable 1O2 release is a promising strategy for tumor-targeted treatment. Methods A series of pH-sensitive ALA-poly(L-histidine) [p(L-His)n] prodrugs were synthesized via ring opening polymerization of 1-benzyl-N-carboxy-L-histidine anhydride initiated by the amine hydrochloride group of ALA itself. As an alternative to ALA for PDT, the synthesized prodrugs were used to treat a cultured human colon cancer HCT116 cell line under different pH conditions. The effect of ALA-p(L-His)n derivatives was evaluated by monitoring the fluorescence intensity of protoporphyrin IX, and measuring the cell survival rate after suitable light irradiation. Results The cytotoxicity and dark toxicity of ALA and synthesized ALA-p(L-His) derivatives in HEK293T and HCT116 cells in the absence of light at pH 7.4 and 6.8 shows that the cell viability was relatively higher than 100%. ALA-p(L-His)n showed high phototoxicity and selectivity in different pH conditions compared with ALA alone. Because the length of the histidine chain increases in the ALA-p(L-His)n prodrugs, the PDT effect was found to be more powerful. In particular, high phototoxicity was observed when the cells were treated with ALA-p(L-His)15, compared with treatment using ALA alone. Conclusion The newly synthesized ALA-p(L-His)n derivatives are an effective alternative to ALA for enhancing protoporphyrin IX production and the selectivity of the phototoxic effect in tumor cells.
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Affiliation(s)
- Renjith P Johnson
- WCU Centre for Synthetic Polymer Bioconjugate Hybrid Materials, Department of Polymer Science and Engineering, Pusan National University, Pusan, Korea
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Bora DK, Deb P. Fatty Acid Binding Domain Mediated Conjugation of Ultrafine Magnetic Nanoparticles with Albumin Protein. Nanoscale Res Lett 2008; 4:138-143. [PMID: 20596435 PMCID: PMC2893867 DOI: 10.1007/s11671-008-9213-6] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/04/2008] [Accepted: 11/11/2008] [Indexed: 05/29/2023]
Abstract
A novel bioconjugate of stearic acid capped maghemite nanoparticle (gamma-Fe(2)O(3)) with bovine serum albumin (BSA) was developed by taking recourse to the fatty acid binding property of the protein. From FT-IR study, it was found that conjugation took place covalently between the amine group of protein molecule and carboxyl group of stearic acid capped maghemite nanoparticle. TEM study further signified the morphology of the proposed nanobioconjuagte. The binding constant of nanoparticle with protein molecule was evaluated from the optical property studies. Also, magnetic measurement (M-H) showed retaining of magnetic property by significant values of saturation magnetization and other hysteretic parameters.
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Affiliation(s)
- DK Bora
- Department of Physics, Tezpur University (Central University), Napaam, Tezpur, 784028, India
- Department of Biotechnology, Indian Institute of Technology Guwahati, North Guwahati, 781039, India
| | - P Deb
- Department of Physics, Tezpur University (Central University), Napaam, Tezpur, 784028, India
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40
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Abstract
A multivalent ligand of thrombopoietin (TPO) was prepared by immobilization of mimetic peptides on gold particles. An effective peptide ligand containing cysteine was designed to enhance the growth of TPO-sensitive cells. The peptide was then immobilized on gold particles by self assembly. The multivalent ligand enhanced the growth of TPO-dependent cells and its activity was more than that of the monovalent ligand.
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Affiliation(s)
- Jiansheng Gong
- Nano Medical Engineering Laboratory, RIKEN Advanced Science Institute, 2-1 Hirosawa, Wako-shi, Saitama 351-0198 Japan
| | - Yoshihiro Ito
- Nano Medical Engineering Laboratory, RIKEN Advanced Science Institute, 2-1 Hirosawa, Wako-shi, Saitama 351-0198 Japan
- Regenerative Medical Bioreactor Project, Kanagawa Academy of Science and Technology, KSP East 309, 3-2-1 Sakado, Takatsu-ku, Kawasaki, Kanagawa 231-0012 Japan
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41
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Abstract
Biomaterials constructed from self-assembling peptides, peptide derivatives, and peptide-polymer conjugates are receiving increasing attention as defined matrices for tissue engineering, controlled therapeutic release, and in vitro cell expansion, but many are constructed from peptide structures not typically found in the human extracellular matrix. Here we report a self-assembling biomaterial constructed from a designed peptide inspired by the coiled coil domain of human fibrin, the major protein constituent of blood clots and the provisional scaffold of wound healing. Targeted substitutions were made in the residues forming the interface between coiled coil strands for a 37-amino acid peptide from human fibrinogen to stabilize the coiled coil peptide bundle, while the solvent-exposed residues were left unchanged to provide a surface similar to that of the native protein. This peptide, which self-assembled into coiled coil dimers and tetramers, was then used to produce triblock peptide-PEG-peptide bioconjugates that self-assembled into viscoelastic hydrogel biomaterials.
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Affiliation(s)
- Peng Jing
- Department of Biomedical Engineering, University of Cincinnati, Cincinnati, OH 45221
| | - Jai S. Rudra
- Department of Surgery, University of Chicago, Chicago, IL 60637
| | - Andrew B. Herr
- Department of Molecular Genetics, Biochemistry, and Microbiology, University of Cincinnati College of Medicine, Cincinnati, OH 45267
| | - Joel H. Collier
- Department of Surgery, University of Chicago, Chicago, IL 60637
- Committee on Molecular Medicine, University of Chicago, Chicago, IL 60637
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