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Schulz JD, Patt M, Basler S, Kries H, Hilvert D, Gauthier MA, Leroux JC. Site-Specific Polymer Conjugation Stabilizes Therapeutic Enzymes in the Gastrointestinal Tract. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2016; 28:1455-1460. [PMID: 26640034 DOI: 10.1002/adma.201504797] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/29/2015] [Revised: 10/30/2015] [Indexed: 06/05/2023]
Abstract
The site-specific conjugation of polymers to multiple engineered cysteine residues of a prolyl endopeptidase leads to its stabilization in the gastrointestinal tract of rats, without compromising the activity relative to the native enzyme. The importance of polymer attachment sites is investigated, as well as the significance of polymer structure.
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Affiliation(s)
- Jessica D Schulz
- Department of Chemistry and Applied Biosciences, Institute of Pharmaceutical Sciences, Swiss Federal Institute of Technology Zurich (ETH Zurich), 8093, Zurich, Switzerland
| | - Melanie Patt
- Department of Chemistry and Applied Biosciences, Institute of Pharmaceutical Sciences, Swiss Federal Institute of Technology Zurich (ETH Zurich), 8093, Zurich, Switzerland
| | - Sophie Basler
- Department of Chemistry and Applied Biosciences, Institute of Pharmaceutical Sciences, Swiss Federal Institute of Technology Zurich (ETH Zurich), 8093, Zurich, Switzerland
| | - Hajo Kries
- Department of Chemistry and Applied Biosciences, Laboratory of Organic Chemistry, Swiss Federal Institute of Technology Zurich (ETH Zurich), 8093, Zurich, Switzerland
| | - Donald Hilvert
- Department of Chemistry and Applied Biosciences, Laboratory of Organic Chemistry, Swiss Federal Institute of Technology Zurich (ETH Zurich), 8093, Zurich, Switzerland
| | - Marc A Gauthier
- EMT Research Center, Institut National de la Recherche Scientifique (INRS), J3X 1S2 Varennes, Quebec, Canada
| | - Jean-Christophe Leroux
- Department of Chemistry and Applied Biosciences, Institute of Pharmaceutical Sciences, Swiss Federal Institute of Technology Zurich (ETH Zurich), 8093, Zurich, Switzerland
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52
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Isarov SA, Lee PW, Pokorski JK. “Graft-to” Protein/Polymer Conjugates Using Polynorbornene Block Copolymers. Biomacromolecules 2016; 17:641-8. [DOI: 10.1021/acs.biomac.5b01582] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Sergey A. Isarov
- Department of Macromolecular
Science and Engineering, School of Engineering, Case Western Reserve University, Cleveland, Ohio 44106, United States
| | - Parker W. Lee
- Department of Macromolecular
Science and Engineering, School of Engineering, Case Western Reserve University, Cleveland, Ohio 44106, United States
| | - Jonathan K. Pokorski
- Department of Macromolecular
Science and Engineering, School of Engineering, Case Western Reserve University, Cleveland, Ohio 44106, United States
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53
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Ling Y, Ren J, Li T, Zhao Y, Wu C. POEGMA-based disulfide-containing fluorescent probes for imitating and tracing noninternalization-based intracellular drug delivery. Chem Commun (Camb) 2016; 52:4533-6. [DOI: 10.1039/c6cc00369a] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
This study provides a proof-of-concept demonstration of exploiting bioreduction in the extracellular spaces for the intracellular delivery of hydrophobic drugs or probes.
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Affiliation(s)
- Yunyang Ling
- The MOE Key Laboratory of Spectrochemical Analysis and Instrumentation
- State Key Laboratory of Physical Chemistry of Solid Surfaces
- Department of Chemistry
- College of Chemistry and Chemical Engineering
- Xiamen University
| | - Jing Ren
- The MOE Key Laboratory of Spectrochemical Analysis and Instrumentation
- State Key Laboratory of Physical Chemistry of Solid Surfaces
- Department of Chemistry
- College of Chemistry and Chemical Engineering
- Xiamen University
| | - Tao Li
- The MOE Key Laboratory of Spectrochemical Analysis and Instrumentation
- State Key Laboratory of Physical Chemistry of Solid Surfaces
- Department of Chemistry
- College of Chemistry and Chemical Engineering
- Xiamen University
| | - Yibing Zhao
- The MOE Key Laboratory of Spectrochemical Analysis and Instrumentation
- State Key Laboratory of Physical Chemistry of Solid Surfaces
- Department of Chemistry
- College of Chemistry and Chemical Engineering
- Xiamen University
| | - Chuanliu Wu
- The MOE Key Laboratory of Spectrochemical Analysis and Instrumentation
- State Key Laboratory of Physical Chemistry of Solid Surfaces
- Department of Chemistry
- College of Chemistry and Chemical Engineering
- Xiamen University
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54
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Bhattacharjee S, Liu W, Wang WH, Weitzhandler I, Li X, Qi Y, Liu J, Pang Y, Hunt DF, Chilkoti A. Site-Specific Zwitterionic Polymer Conjugates of a Protein Have Long Plasma Circulation. Chembiochem 2015; 16:2451-5. [PMID: 26481301 PMCID: PMC4802966 DOI: 10.1002/cbic.201500439] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2015] [Indexed: 12/14/2022]
Abstract
Many proteins suffer from suboptimal pharmacokinetics (PK) that limit their utility as drugs. The efficient synthesis of polymer conjugates of protein drugs with tunable PK to optimize their in vivo efficacy is hence critical. We report here the first study of the in vivo behavior of a site-specific conjugate of a zwitterionic polymer and a protein. To synthesize the conjugate, we first installed an initiator for atom-transfer radical polymerization (ATRP) at the N terminus of myoglobin (Mb-N-Br). Subsequently, in situ ATRP was carried out in aqueous buffer to grow an amine-functionalized polymer from Mb-N-Br. The cationic polymer was further derivatized to two zwitterionic polymers by treating the amine groups of the cationic polymer with iodoacetic acid to obtain poly(carboxybetaine methacrylate) with a one-carbon spacer (PCBMA; C1 ), and sequentially with 3-iodopropionic acid and iodoacetic acid to obtain PCBMA(mix) with a mixture of C1 and C2 spacers. The Mb-N-PCBMA polymer conjugates had a longer in vivo plasma half-life than a PEG-like comb polymer conjugate of similar molecular weights (MW). The structure of the zwitterion plays a role in controlling the in vivo behavior of the conjugate, as the PCBMA conjugate with a C1 spacer had significantly longer plasma circulation than the conjugate with a mixture of C1 and C2 spacers.
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Affiliation(s)
- Somnath Bhattacharjee
- Department of Biomedical Engineering, Duke University, 101 Science Drive, Durham, NC, 27708, USA
| | - Wenge Liu
- Department of Biomedical Engineering, Duke University, 101 Science Drive, Durham, NC, 27708, USA
| | - Wei-Han Wang
- Department of Chemistry, University of Virginia, McCormick Road, Charlottesville, VA, 22904, USA
| | - Isaac Weitzhandler
- Department of Biomedical Engineering, Duke University, 101 Science Drive, Durham, NC, 27708, USA
| | - Xinghai Li
- Department of Biomedical Engineering, Duke University, 101 Science Drive, Durham, NC, 27708, USA
| | - Yizhi Qi
- Department of Biomedical Engineering, Duke University, 101 Science Drive, Durham, NC, 27708, USA
| | - Jinyao Liu
- Department of Biomedical Engineering, Duke University, 101 Science Drive, Durham, NC, 27708, USA
| | - Yan Pang
- Department of Biomedical Engineering, Duke University, 101 Science Drive, Durham, NC, 27708, USA
| | - Donald F Hunt
- Department of Chemistry, University of Virginia, McCormick Road, Charlottesville, VA, 22904, USA
- Department of Pathology, Health Sciences Center, University of Virginia, 1215 Lee Street, Charlottesville, VA, 22908, USA
| | - Ashutosh Chilkoti
- Department of Biomedical Engineering, Duke University, 101 Science Drive, Durham, NC, 27708, USA.
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55
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Liu M, Leroux JC, Gauthier MA. Conformation–function relationships for the comb-shaped polymer pOEGMA. Prog Polym Sci 2015. [DOI: 10.1016/j.progpolymsci.2015.03.001] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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56
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Tan Y, Gao Q, Yang C, Yang K, Tian W, Zhu L. One-dimensional porous nanofibers of Co3O4 on the carbon matrix from human hair with superior lithium ion storage performance. Sci Rep 2015. [PMID: 26201874 PMCID: PMC4511864 DOI: 10.1038/srep12382] [Citation(s) in RCA: 62] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022] Open
Abstract
One-dimensional (1D) hierarchical porous nanofibers of Co3O4 possessing of (220) facets on the carbon matrix from human hair (H2@Co3O4) with 20-30 nm in width and 3-5 μm in length are prepared by a facile solvothermal and calcination approach. The well crystallized small Co3O4 particles with the diameter of about 8-12 nm were closely aggregated together in the nanofibers. Electrochemical analyses show that the first discharge capacity of H2@Co3O4 electrode is 1368 mAh g(-1) at the current density of 0.1 A g(-1) based on the total mass of composite. A high reversible capacity of 916 mAh g (-1) was obtained over 100 cycles at 0.1 A g(-1), presenting a good cycling stability. When cycled at a high current density of 1 and 2 A g(-1), the specific capacity of 659 and 573 mAh g(-1) could be still achieved, respectively, indicating a superior power capability.
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Affiliation(s)
- Yanli Tan
- Key Laboratory of Bio-inspired Smart Interfacial Science and Technology of Ministry of Education, Beijing Key Laboratory of Bio-inspired Energy Materials and Devices, School of Chemistry and Environment, Beihang University, Beijing 100191, P. R. China
| | - Qiuming Gao
- Key Laboratory of Bio-inspired Smart Interfacial Science and Technology of Ministry of Education, Beijing Key Laboratory of Bio-inspired Energy Materials and Devices, School of Chemistry and Environment, Beihang University, Beijing 100191, P. R. China
| | - Chunxiao Yang
- Key Laboratory of Bio-inspired Smart Interfacial Science and Technology of Ministry of Education, Beijing Key Laboratory of Bio-inspired Energy Materials and Devices, School of Chemistry and Environment, Beihang University, Beijing 100191, P. R. China
| | - Kai Yang
- Key Laboratory of Bio-inspired Smart Interfacial Science and Technology of Ministry of Education, Beijing Key Laboratory of Bio-inspired Energy Materials and Devices, School of Chemistry and Environment, Beihang University, Beijing 100191, P. R. China
| | - Weiqian Tian
- Key Laboratory of Bio-inspired Smart Interfacial Science and Technology of Ministry of Education, Beijing Key Laboratory of Bio-inspired Energy Materials and Devices, School of Chemistry and Environment, Beihang University, Beijing 100191, P. R. China
| | - Lihua Zhu
- Key Laboratory of Bio-inspired Smart Interfacial Science and Technology of Ministry of Education, Beijing Key Laboratory of Bio-inspired Energy Materials and Devices, School of Chemistry and Environment, Beihang University, Beijing 100191, P. R. China
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