1
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Chen W, Zhang M, Wang C, Zhang Q. PEI-Based Nanoparticles for Tumor Immunotherapy via In Situ Antigen-Capture Triggered by Photothermal Therapy. ACS APPLIED MATERIALS & INTERFACES 2023; 15:55433-55446. [PMID: 37976376 DOI: 10.1021/acsami.3c13405] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/19/2023]
Abstract
Activating a tumor antigen-specific immune response is key to the success of tumor immunotherapy and the development of personalized antitumor therapy. Nanocarriers can capture, enrich, and protect in situ produced tumor antigens due to immunogenic cell death (ICD), thus enhancing the tumor-specific immune response. Developing multifunctional nanocarriers that combine multiple antigen capturing mechanisms is crucial to the activation of tumor-specific immune responses. In this study, polyethylenimine (PEI) was employed as a main building block to construct a series of multifunctional indocyanine green (ICG)-loaded nanoparticles to capture antigens via multiple mechanisms: electrostatic interactions with PEI, hydrophobic interactions with the thermosensitive segment (POEGMA300), and covalent bonding with the pyridyl disulfide (PDS) groups, respectively. Their capacity of ICD induction, tumor antigen-capture, and antitumor immune responses were evaluated. Both the intrinsic toxicity of PEI and the ICG-mediated photothermal effect were responsible for inducing ICD. The positively charged PEI segment exhibited the best antigen-capturing ability via electrostatic interactions, promoted bone marrow-derived dendritic cell maturation and CD8+ T cell proliferation, and elicited antitumor immune responses in vivo. PDS groups bonded antigens covalently and significantly contributed to the suppression of distant tumor growth. Although the thermosensitive hydrophobic polymer segment did not contribute positively to antigen capture or tumor growth inhibition, NPs containing all of the functional modules prolonged the survival of tumor-bearing mice more than other treatments. This study provides more chemical insights into the design of polymer-based in situ nanovaccines against cancer.
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Affiliation(s)
- Wenjuan Chen
- Tianjin Key Laboratory of Biomedical Materials, Institute of Biomedical Engineering, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin 300192, China
| | - Mingming Zhang
- Tianjin Key Laboratory of Biomedical Materials, Institute of Biomedical Engineering, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin 300192, China
| | - Chun Wang
- Department of Biomedical Engineering, University of Minnesota, 7-105 Hasselmo Hall, 312 Church Street S. E., Minneapolis, Minnesota 55455, United States
| | - Qiqing Zhang
- Tianjin Key Laboratory of Biomedical Materials, Institute of Biomedical Engineering, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin 300192, China
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2
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Zhang M, Chen W, Ju Y, Zhao H, Wang C. Polymer-Protein Nanovaccine Synthesized via Reactive Self-Assembly with Potential Application in Cancer Immunotherapy: Physicochemical and Biological Characterization In Vitro and In Vivo. Macromol Rapid Commun 2023; 44:e2300438. [PMID: 37708966 DOI: 10.1002/marc.202300438] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2023] [Revised: 09/10/2023] [Indexed: 09/16/2023]
Abstract
Nanovaccines composed of polymeric nanocarriers and protein-based antigens have attracted much attention in recent years because of their enormous potential in the prevention and treatment of diseases such as viral infections and cancer. While surface-conjugated protein antigens are known to be more immunoactive than encapsulated antigens, current surface conjugation methods often result in low and insufficient protein loading. Herein, reactive self-assembly is used to prepare nanovaccine from poly(ε-caprolactone) (PCL) and ovalbumin (OVA)-a model antigen. A rapid thiol-disulfide exchange reaction between PCL with pendant pyridyl disulfide groups and thiolated OVA results in the formation of nanoparticles with narrow size distribution. High OVA loading (≈70-80 wt%) is achieved, and the native secondary structure of OVA is preserved. Compared to free OVA, the nanovaccine is much superior in enhancing antigen uptake by bone marrow-derived dendritic cells (BMDCs), promoting BMDC maturation and antigen presentation via the MHC I pathway, persisting at the injection site and draining lymph nodes, activating both Th1 and Th2 T cell immunity, and ultimately, resisting tumor challenge in mice. This is the first demonstration of reactive self-assembly for the construction of a polymer-protein nanovaccine with clear potential in advancing cancer immunotherapy.
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Affiliation(s)
- Mingming Zhang
- Tianjin Key Laboratory of Biomedical Materials, Institute of Biomedical Engineering, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin, 300192, China
| | - Wenjuan Chen
- Tianjin Key Laboratory of Biomedical Materials, Institute of Biomedical Engineering, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin, 300192, China
| | - Yuanyuan Ju
- Key Laboratory of Functional Polymer Materials, Ministry of Education, College of Chemistry, Nankai University, Tianjin, 300071, China
| | - Hanying Zhao
- Key Laboratory of Functional Polymer Materials, Ministry of Education, College of Chemistry, Nankai University, Tianjin, 300071, China
| | - Chun Wang
- Department of Biomedical Engineering, University of Minnesota, 7-105 Hasselmo Hall, 312 Church Street S. E., Minneapolis, MN, 55455, USA
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3
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Yi J, Qin Y, Zhang Y. Synthesis and Self-Assembly of Hyperbranched Multiarm Copolymer Lysozyme Conjugates Based on Light-Induced Metal-Free Atrp. NANOMATERIALS (BASEL, SWITZERLAND) 2023; 13:nano13061017. [PMID: 36985911 PMCID: PMC10053904 DOI: 10.3390/nano13061017] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/22/2023] [Revised: 03/06/2023] [Accepted: 03/09/2023] [Indexed: 06/12/2023]
Abstract
In recent years, the coupling of structurally and functionally controllable polymers with biologically active protein materials to obtain polymer-protein conjugates with excellent overall properties and good biocompatibility has been important research in the field of polymers. In this study, the hyperbranched polymer hP(DEGMA-co-OEGMA) was first prepared by combining self-condensation vinyl polymerization (SCVP) with photo-induced metal-free atom transfer radical polymerization (ATRP), with 2-(2-bromo-2-methylpropanoyloxy) ethyl methacrylate (BMA) as inimer, and Di (ethylene glycol) methyl ether methacrylate (DEGMA) and (oligoethylene glycol) methacrylate (OEGMA, Mn = 300) as the copolymer monomer. Then, hP(DEGMA-co-OEGMA) was used as a macroinitiator to continue the polymerization of a segment of pyridyl disulfide ethyl methacrylate (DSMA) monomer to obtain the hyperbranched multiarm copolymers hP(DEGMA-co-OEGMA)-star-PDSMA. Finally, the lysozyme with sulfhydryl groups was affixed to the hyperbranched multiarm copolymers by the exchange reaction between sulfhydryl groups and disulfide bonds to obtain the copolymer protein conjugates hP(DEGMA-co-OEGMA)-star-PLZ. Three hyperbranched multiarm copolymers with relatively close molecular weights but different degrees of branching were prepared, and all three conjugates could self-assemble to form nanoscale vesicle assemblies with narrow dispersion. The biological activity and secondary structure of lysozyme on the assemblies remained essentially unchanged.
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Affiliation(s)
- Jianguo Yi
- School of Chemical Engineering and Technology, Hebei University of Technology, Tianjin 300130, China
- Hebei Key Laboratory of Functional Polymers, Tianjin 300130, China
| | - Yan Qin
- School of Chemical Engineering and Technology, Hebei University of Technology, Tianjin 300130, China
- Hebei Key Laboratory of Functional Polymers, Tianjin 300130, China
| | - Yue Zhang
- School of Chemical Engineering and Technology, Hebei University of Technology, Tianjin 300130, China
- Hebei Key Laboratory of Functional Polymers, Tianjin 300130, China
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4
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Wang L, Yu Q, Liu L, Zhao H. Synthesis and modification of polymers by thiol-phenylsulfone substitution reaction. Chem Commun (Camb) 2022; 58:2148-2151. [PMID: 35050285 DOI: 10.1039/d1cc06557b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Thiol chemistry is a type of highly efficient chemical reaction between thiols and functional groups. During the past two decades, thiol chemistry has been widely applied in the synthesis and modification of polymers. With the rapid development of polymer chemistry and materials science, more thiol click reactions, which can be efficiently performed under mild conditions, are required. In this research, the synthesis and modification of polymers by thiol-phenylsulfone substitution reactions are reported. A monomer containing two phenylsulfonyl groups is synthesized and the monomer is reacted with bisthiols under mild conditions, leading to the synthesis of novel polymers. Size exclusion chromatography, 1H NMR and differential scanning calorimetry results demonstrate the step-growth polymerization of the monomer. A combination of thiol-phenylsulfone and thiol-disulfide reactions are used in the post-polymerization modification.
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Affiliation(s)
- Lun Wang
- Key Laboratory of Functional Polymer Materials, Ministry of Education, Department of Chemistry, Nankai University, Tianjin 300071, China.
| | - Qianyu Yu
- Key Laboratory of Functional Polymer Materials, Ministry of Education, Department of Chemistry, Nankai University, Tianjin 300071, China.
| | - Li Liu
- Key Laboratory of Functional Polymer Materials, Ministry of Education, Department of Chemistry, Nankai University, Tianjin 300071, China.
| | - Hanying Zhao
- Key Laboratory of Functional Polymer Materials, Ministry of Education, Department of Chemistry, Nankai University, Tianjin 300071, China.
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5
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Li Y, Liu L, Zhao H. Enzyme-catalyzed cascade reactions on multienzyme proteinosomes. J Colloid Interface Sci 2021; 608:2593-2601. [PMID: 34763887 DOI: 10.1016/j.jcis.2021.10.185] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2021] [Revised: 10/21/2021] [Accepted: 10/29/2021] [Indexed: 10/19/2022]
Abstract
In this research, to mimic the structures and the functionalities of the organelles in living cells multienzyme proteinosomes with β-galactosidase (β-gal), glucose oxidase (GOx) and horseradish peroxidase (HRP) on the surfaces are fabricated by hydrophobic-interaction induced self-assembly approach. To investigate the mechanism of the formation of proteinosomes, poly(di(ethylene glycol) methyl ether methacrylate) (PDEGMA) and bovine serum albumin are employed in a model system and the study demonstrates that the hydrophobic interaction between the dehydrated polymer chains and the hydrophobic patches on the proteins plays a key role in the fabrication of the proteinosomes. Based on the model system, multienzyme proteinosomes with β-gal, GOx and HRP on the surfaces are fabricated through hydrophobic interaction between PDEGMA and enzyme molecules. Enzyme-catalyzed cascade reactions are performed on the surfaces of the proteinosomes, and the immobilized enzymes show higher bioactivities than the "free" enzymes, due to the direct transfer of the product as a substrate from one enzyme molecule to another. This research provides a unique method for the synthesis of multienzyme proteinosomes with improved bioactivities, and the biofunctional structures will find promising applications in medical and biological science.
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Affiliation(s)
- Yuwei Li
- Key Laboratory of Functional Polymer Materials, Ministry of Education, College of Chemistry, Nankai University, Collaborative Innovation Center of Chemical Science and Engineering, Tianjin 300071, China
| | - Li Liu
- Key Laboratory of Functional Polymer Materials, Ministry of Education, College of Chemistry, Nankai University, Collaborative Innovation Center of Chemical Science and Engineering, Tianjin 300071, China.
| | - Hanying Zhao
- Key Laboratory of Functional Polymer Materials, Ministry of Education, College of Chemistry, Nankai University, Collaborative Innovation Center of Chemical Science and Engineering, Tianjin 300071, China.
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Hong Y, Ju Y, Chen W, Liu Y, Zhang M, Zhao H. Fabrication of PεCL-AuNP-BSA core-shell-corona nanoparticles for flexible spatiotemporal drug delivery and SERS detection. Biomater Sci 2021; 9:4440-4447. [PMID: 33989374 DOI: 10.1039/d1bm00388g] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Nanoparticles with protein coronae can be used as promising multifunctional platforms for nanomedicine due to the possibility of performing surface functionalization on protein molecules and the achievement of biomedical properties. In this research, nanoparticles (NPs) with poly(ε-caprolactone) (PεCL) cores, gold NP (AuNP) shells and BSA coronae were fabricated by a self-assembly approach. The hydrophobic PεCL cores were used to encapsulate curcumin (CUR), the AuNP shells were decorated with a Raman probe, and the protein molecules in the coronae were functionalized with folic acid (FA). The self-assembly behaviors, drug delivery and the surface-enhanced Raman scattering (SERS) effect of the hybrid NPs were investigated in this research. The sizes of the core-shell-corona NPs (CSCNPs) are dependent on the initial concentrations of PεCL and AuNPs. The CUR in CSCNPs show enzyme-triggered release properties. The added lipase or trypsin can facilitate the CUR release from the hybrid NPs. The functionalization of CSCNPs with FA can significantly improve the internalization of NPs into 4T1 tumor cells due to the overexpressed folate receptors on the cells. In addition, the SERS effect of CSCNPs can be achieved when the AuNPs are decorated with 2-naphthalenethiol. The hybrid CSCNPs can be used as a promising platform for spatiotemporal drug delivery, cell imaging, and theranostics. Based on the same CSCNP platform, flexible functions can be adjusted according to the application needs.
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Affiliation(s)
- Yanhang Hong
- College of Chemistry and Key Laboratory of Functional Polymer Materials of the Ministry of Education, Nankai University, weijing road #94, Tianjin 300071, China.
| | - Yuanyuan Ju
- College of Chemistry and Key Laboratory of Functional Polymer Materials of the Ministry of Education, Nankai University, weijing road #94, Tianjin 300071, China.
| | - Wenjuan Chen
- Tianjin Key laboratory of Biomedical Materials, Institute of Biomedical Engineering, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin 300192, China.
| | - Yingze Liu
- College of Chemistry and Key Laboratory of Functional Polymer Materials of the Ministry of Education, Nankai University, weijing road #94, Tianjin 300071, China.
| | - Mingming Zhang
- Tianjin Key laboratory of Biomedical Materials, Institute of Biomedical Engineering, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin 300192, China.
| | - Hanying Zhao
- College of Chemistry and Key Laboratory of Functional Polymer Materials of the Ministry of Education, Nankai University, weijing road #94, Tianjin 300071, China.
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7
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Zhang L, Zhang D, Yang Y, Zhang Y. Stimuli-Responsive Proteinosomes Based on Biohybrid Shell Cross-Linked Micelles. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2021; 37:3950-3959. [PMID: 33751892 DOI: 10.1021/acs.langmuir.1c00202] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
A new method of stimuli-responsive proteinosome fabrication with the shell cross-linked micelle as a template is reported in this research. A thermoresponsive diblock copolymer poly[di(ethylene glycol) methyl ether methacrylate]-b-poly[poly(ethylene glycol) methyl ether methacrylate-co-pyridyl disulfide methacrylamide] [PDEGMA-b-P(PEGMA-co-PDSMA)] was synthesized and self-assembled into micelles with PDEGMA cores and P(PEGMA-co-PDSMA) shells at the temperature above its lower critical solution temperature (LCST). Reduced bovine serum albumin (BSA) molecules with six thiol groups were used to cross-link the shells of the micelles by reacting with the pendant pyridyl disulfide groups on the P(PEGMA-co-PDSMA) block. At a temperature below the LCST of the polymer, the PDEGMA cores were dissolved in water, affording proteinosomes with a size of about 50 nm and capsule-like structures. The proteinosome was also thermoresponsive with a phase transition temperature at 35 °C. The fabrication of the proteinosome had no obvious influence on the structure and activity of BSA, and BSA retained most of its secondary structure and esterase-like activity. Because the BSA molecules were connected to the polymer chains through disulfide bonds, they could be released upon addition of dithiothreitol. The in vitro cell viability evaluation and the cellular uptake assay demonstrated that the proteinosome showed low toxicity to NIH 3T3 and 4T1 cells and could be internalized into the 4T1 cells.
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Affiliation(s)
- Lixin Zhang
- School of Chemical Engineering and Technology, Hebei University of Technology, Tianjin 300130, China
- Hebei Key Laboratory of Functional Polymers, Tianjin 300130, China
| | - Daowen Zhang
- School of Chemical Engineering and Technology, Hebei University of Technology, Tianjin 300130, China
- Hebei Key Laboratory of Functional Polymers, Tianjin 300130, China
| | - Yongfang Yang
- School of Chemical Engineering and Technology, Hebei University of Technology, Tianjin 300130, China
- Hebei Key Laboratory of Functional Polymers, Tianjin 300130, China
| | - Yue Zhang
- School of Chemical Engineering and Technology, Hebei University of Technology, Tianjin 300130, China
- Hebei Key Laboratory of Functional Polymers, Tianjin 300130, China
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8
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Hijazi M, Türkmen E, Tiller JC. Full Thermal Switching of Enzymes by Thermoresponsive Poly(2-oxazoline)-Based Enzyme Inhibitors. Chemistry 2020; 26:13367-13371. [PMID: 32706128 PMCID: PMC7702056 DOI: 10.1002/chem.202001909] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2020] [Revised: 07/22/2020] [Indexed: 11/08/2022]
Abstract
Controlling the activity of enzymes is an important feature for many processes in medicine, bioanalytics, and biotechnology. So far, it has not been possible to fully switch biocatalysts on and off by thermoresponsive enzyme inhibitors. Herein, we present poly(2-oxazoline)s with iminodiacetic acid end groups (POx-IDA) that are lower critical solution temperature (LCST) polymers and thus thermosensitive. They are capable of reversibly inhibiting the activity of horse radish peroxidase and laccase by more than 99 %. Increasing the temperature makes the POx-IDA precipitate, which leads to 100 % recovery of the enzyme activity. This switching cycle is fully reversible. The LCST of the POx-IDA can be tuned by varying the polymer composition to generate a wide range of switching windows.
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Affiliation(s)
- Montasser Hijazi
- Department of Bio- and Chemical EngineeringTU DortmundEmil-Figge-Str. 6644227DortmundGermany
| | - Esra Türkmen
- Department of Bio- and Chemical EngineeringTU DortmundEmil-Figge-Str. 6644227DortmundGermany
| | - Joerg C. Tiller
- Department of Bio- and Chemical EngineeringTU DortmundEmil-Figge-Str. 6644227DortmundGermany
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9
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Cai Y, Yu Q, Zhao H. Electrostatic assisted fabrication and dissociation of multi-component proteinosomes. J Colloid Interface Sci 2020; 576:90-98. [PMID: 32408164 DOI: 10.1016/j.jcis.2020.05.013] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2020] [Revised: 05/03/2020] [Accepted: 05/04/2020] [Indexed: 01/17/2023]
Abstract
Self-assembly of proteins into well-organized proteinosomes has attracted great interest due to the potential medical and biological applications of the structures. Herein, a new concept of electrostatic assisted fabrication of proteinosomes is proposed. The self-assembly is performed by using multi-step dialysis approach, where negatively charged bovine serum albumin-poly(N-isopropylacrylamide) (BSA-PNIPAM) bioconjugate and positively charged enzyme (lysozyme or trypsin) are initially dissolved in phosphate buffer (PB) solution at a high salt concentration, and subsequently the protein solution is dialyzed against PB solutions at low salt concentrations, resulting in the formation of biofunctional proteinosomes. Transmission electron microscopy (TEM), cryo-TEM and light scattering results all demonstrate the formation of hollow structures. The wall of a proteinosome is composed of BSA and enzyme (lysozyme or trypsin), and PNIPAM chains of the bioconjugate are in the corona stabilizing the structure. In comparison with the native enzymes, the enzyme molecules in the assemblies basically retain their bioactivities. The proteinosomes formed by BSA-PNIPAM and lysozyme can be dissociated in the presence of trypsin, and those self-assembled by BSA-PNIPAM and trypsin are able to be self-hydrolyzed, resulting in the dissociation of the structures in aqueous solution. The size and morphology changes of the proteinosomes in the hydrolysis are studied.
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Affiliation(s)
- Yaqian Cai
- Key Laboratory of Functional Polymer Materials, Ministry of Education, College of Chemistry, Nankai University, Collaborative Innovation Center of Chemical Science and Engineering, Tianjin 300071, China
| | - Qianyu Yu
- Key Laboratory of Functional Polymer Materials, Ministry of Education, College of Chemistry, Nankai University, Collaborative Innovation Center of Chemical Science and Engineering, Tianjin 300071, China
| | - Hanying Zhao
- Key Laboratory of Functional Polymer Materials, Ministry of Education, College of Chemistry, Nankai University, Collaborative Innovation Center of Chemical Science and Engineering, Tianjin 300071, China.
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10
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Li T, Huang F, Diaz-Dussan D, Zhao J, Srinivas S, Narain R, Tian W, Hao X. Preparation and Characterization of Thermoresponsive PEG-Based Injectable Hydrogels and Their Application for 3D Cell Culture. Biomacromolecules 2020; 21:1254-1263. [DOI: 10.1021/acs.biomac.9b01743] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Affiliation(s)
- Tian Li
- School of Chemistry and Chemical Engineering, Guangdong Pharmaceutical University, Zhongshan 528458, China
- CSIRO Manufacturing, Clayton, VIC 3168, Australia
| | - Fei Huang
- CSIRO Manufacturing, Clayton, VIC 3168, Australia
| | - Diana Diaz-Dussan
- Department of Chemical and Materials Engineering, University of Alberta, Edmonton, AB T6G 2R3, Canada
| | - Jianyang Zhao
- CSIRO Manufacturing, Clayton, VIC 3168, Australia
- Institute for Frontier Materials Geelong, Deakin University, Geelong, Victoria 3216, Australia
| | - Shruti Srinivas
- Department of Chemical and Materials Engineering, University of Alberta, Edmonton, AB T6G 2R3, Canada
| | - Ravin Narain
- CSIRO Manufacturing, Clayton, VIC 3168, Australia
- Department of Chemical and Materials Engineering, University of Alberta, Edmonton, AB T6G 2R3, Canada
| | - Wendy Tian
- CSIRO Manufacturing, Clayton, VIC 3168, Australia
| | - Xiaojuan Hao
- CSIRO Manufacturing, Clayton, VIC 3168, Australia
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11
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Yu Q, Ma X, Liu Y, Zhao H. Biomimetic Mineralization of Protein Nanogels for Enzyme Protection. Chemistry 2019; 25:16712-16717. [PMID: 31664741 DOI: 10.1002/chem.201904412] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2019] [Revised: 10/29/2019] [Indexed: 01/24/2023]
Abstract
Protein nanogels have found a wide variety of applications, ranging from biocatalysis to drug/protein delivery. However, in practical applications, proteins in nanogels may suffer from enzymic hydrolysis and denaturation. Inspired by the structure and functionalities of the fowl eggshells, biomimetic mineralization of protein nanogels was studied in this research. Protein nanogels with embedded porcine pancreas lipase (PPL) in the cross-linked nanostructures were synthesized through the thiol-disulfide reaction between thiol-functionalized PPL and poly(N-isopropylacrylamide) with pendant pyridyl disulfide groups. The nanogels were further reacted with reduced bovine serum albumin (BSA) and BSA molecules were coated on the nanogels. Mineralization of BSA leads to the synthesis of biomineralized shells on the nanogels. With the growth of CaCO3 on the shells, the nanogels aggregate into suprastructures. Thermogravimetric analysis, XRD, dynamic light scattering, and TEM were employed to study the mechanism of the biomineralization process and analyze the structures of the mineralized nanogels. The biomineralized shells can effectively protect the PPL molecules from hydrolysis by trypsin; meanwhile, the nanosized channels on the mineralized shells allow the transport of small-molecule substrates across the shells. Bioactivity measurements indicate that PPL in the nanogels maintains more than 80 % bioactivity after biomineralization.
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Affiliation(s)
- Qianyu Yu
- Key Laboratory of Functional Polymer Materials, Ministry of Education, College of Chemistry, Collaborative Innovation Center of, Chemical Science and Engineering (Tianjin), Nankai University, Tianjin, 300071, P.R. China
| | - Xiaoteng Ma
- Key Laboratory of Functional Polymer Materials, Ministry of Education, College of Chemistry, Collaborative Innovation Center of, Chemical Science and Engineering (Tianjin), Nankai University, Tianjin, 300071, P.R. China
| | - Yingze Liu
- Key Laboratory of Functional Polymer Materials, Ministry of Education, College of Chemistry, Collaborative Innovation Center of, Chemical Science and Engineering (Tianjin), Nankai University, Tianjin, 300071, P.R. China
| | - Hanying Zhao
- Key Laboratory of Functional Polymer Materials, Ministry of Education, College of Chemistry, Collaborative Innovation Center of, Chemical Science and Engineering (Tianjin), Nankai University, Tianjin, 300071, P.R. China
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12
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Cai Y, Liu F, Ma X, Yang X, Zhao H. Hydrophobic Interaction-Induced Coassembly of Homopolymers and Proteins. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2019; 35:10958-10964. [PMID: 31355645 DOI: 10.1021/acs.langmuir.9b01749] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Studies on the fabrication of polymer-protein hybrid self-assemblies have aroused great interest over the past years because of a broad range of applications of the materials in drug/protein delivery, biosensors, and enhancement of protein stability. The hybrid assemblies are usually fabricated from polymer-protein bioconjugates, which may suffer from the damages to the protein structures and the loss of functionalities in the synthesis. Herein, we report a simple and efficient approach to the fabrication of vesicle-like structures based on coassembly of homopolymer chains and protein molecules. At room temperature, poly(N-isopropylacrylamide) (PNIPAM) and bovine serum albumin (BSA) are able to form complexes through hydrophobic interactions in aqueous solution. Upon heating to a temperature above the cloud point of PNIPAM, vesicle-like structures with collapsed PNIPAM in the walls and BSA at the surfaces are formed. The size and membrane thickness of the assemblies can be tuned by the molar ratio of PNIPAM to BSA. The hydrophobic interaction between PNIPAM and BSA plays a key role in the complex formation and self-assembly process. The complexes and assembled structures are analyzed by using micro differential scanning calorimetry, light scattering, and transmission electron microscopy. BSA in the assemblies retains over 90% of its activity, and the protein stability is enhanced because of the hydrophobic interaction between proteins and polymers. This approach allows us to prepare polymer-protein assemblies without bioconjugate synthesis. Meanwhile, possible damages to the protein structures and the loss of bioactivities of proteins can be avoided.
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13
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Hou W, Wei L, Liu L, Zhao H. Surface Coassembly of Polymer Brushes and Polymer–Protein Bioconjugates: An Efficient Approach to the Purification of Bioconjugates under Mild Conditions. Biomacromolecules 2018; 19:4463-4471. [DOI: 10.1021/acs.biomac.8b01355] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
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14
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Yang Y, Zhong K, Chen T, Jin LY. Morphological Control of Coil-Rod-Coil Molecules Containing m-Terphenyl Group: Construction of Helical Fibers and Helical Nanorings in Aqueous Solution. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2018; 34:10613-10621. [PMID: 30107734 DOI: 10.1021/acs.langmuir.8b01904] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Rod-coil molecules, composed of rigid segments and flexible coil chains, have a strong intrinsic ability to self-assemble into diverse supramolecular nanostructures. Herein, we report the synthesis and the morphological control of a new series of amphiphilic coil-rod-coil molecular isomers 1-2 containing flexible oligoether chains. These molecules are comprised of m-terphenyl and biphenyl groups, along with triple bonds, and possess lateral methyl or butyl groups at the coil or rod segments. The results of this study suggest that the morphology of supramolecular aggregates is significantly influenced by the lateral alkyl groups and by the sequence of the rigid fragments in the bulk and in aqueous solution. The molecules with different coils self-assemble into lamellar or oblique columnar structures in the bulk state. In aqueous solution, molecule 1a, with a lack of lateral groups, self-assembled into large strips of sheets, whereas exquisite nanostructures of helical fibers were obtained from molecule 1b, which incorporated lateral methyl groups between the rod and coil segments. Interestingly, molecule 1c with lateral butyl and methyl groups exhibited a strong self-organizing capacity to form helical nanorings. Nanoribbons, helical fibers, and small nanorings were simultaneously formed from the 2a-2c, which are structural isomers of 1a, 1b, and 1c. Accurate control of these supramolecular nanostructures can be achieved by tuning the synergistic interactions of the noncovalent driving force with hydrophilic-hydrophobic interactions in aqueous solution.
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Affiliation(s)
- Yuntian Yang
- Key Laboratory for Organism Resources of the Changbai Mountain and Functional Molecules, Ministry of Education, and Department of Chemistry, College of Science , Yanbian University , Yanji 133002 , China
| | - Keli Zhong
- College of Chemistry, Chemical Engineering and Food Safety, Bohai University , Jinzhou 121013 , China
| | - Tie Chen
- Key Laboratory for Organism Resources of the Changbai Mountain and Functional Molecules, Ministry of Education, and Department of Chemistry, College of Science , Yanbian University , Yanji 133002 , China
| | - Long Yi Jin
- Key Laboratory for Organism Resources of the Changbai Mountain and Functional Molecules, Ministry of Education, and Department of Chemistry, College of Science , Yanbian University , Yanji 133002 , China
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15
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Wang X, Yadavalli NS, Laradji AM, Minko S. Grafting through Method for Implanting of Lysozyme Enzyme in Molecular Brush for Improved Biocatalytic Activity and Thermal Stability. Macromolecules 2018. [DOI: 10.1021/acs.macromol.8b00991] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Affiliation(s)
- Xue Wang
- Nanostructured Materials Lab, The University of Georgia, Athens, Georgia 30602, United States
| | - Nataraja S. Yadavalli
- Nanostructured Materials Lab, The University of Georgia, Athens, Georgia 30602, United States
| | - Amine M. Laradji
- Nanostructured Materials Lab, The University of Georgia, Athens, Georgia 30602, United States
| | - Sergiy Minko
- Nanostructured Materials Lab, The University of Georgia, Athens, Georgia 30602, United States
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16
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Nanoparticulate polyelectrolyte complexes of thermally sensitive poly(l-lysine)-based copolymers and DNA. Eur Polym J 2018. [DOI: 10.1016/j.eurpolymj.2018.03.028] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
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17
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Ju Y, Zhang Y, Zhao H. Fabrication of Polymer-Protein Hybrids. Macromol Rapid Commun 2018; 39:e1700737. [PMID: 29383794 DOI: 10.1002/marc.201700737] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2017] [Revised: 12/13/2017] [Indexed: 12/11/2022]
Abstract
Rapid developments in organic chemistry and polymer chemistry promote the synthesis of polymer-protein hybrids with different structures and biofunctionalities. In this feature article, recent progress achieved in the synthesis of polymer-protein conjugates, protein-nanoparticle core-shell structures, and polymer-protein nanogels/hydrogels is briefly reviewed. The polymer-protein conjugates can be synthesized by the "grafting-to" or the "grafting-from" approach. In this article, different coupling reactions and polymerization methods used in the synthesis of bioconjugates are reviewed. Protein molecules can be immobilized on the surfaces of nanoparticles by covalent or noncovalent linkages. The specific interactions and chemical reactions employed in the synthesis of core-shell structures are discussed. Finally, a general introduction to the synthesis of environmentally responsive polymer-protein nanogels/hydrogels by chemical cross-linking reactions or molecular recognition is provided.
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Affiliation(s)
- Yuanyuan Ju
- College of Chemistry and Key Laboratory of Functional Polymer Materials of the Ministry of Education, Nankai University, Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin, 300071, China
| | - Yue Zhang
- School of Chemical Engineering and Technology, Hebei University of Technology, Tianjin, 300130, China
| | - Hanying Zhao
- College of Chemistry and Key Laboratory of Functional Polymer Materials of the Ministry of Education, Nankai University, Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin, 300071, China
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18
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Qian A, Shi H, Zhu R, Yan J, Li W, Liu K, Zhang A. Thermoresponsive cyclodextrins with benzenesulfonamide showing tunable inhibition for carbonic anhydrase. Org Biomol Chem 2017; 15:8028-8031. [PMID: 28933488 DOI: 10.1039/c7ob02171b] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Monodisperse thermoresponsive cyclodextrins appended with benzenesulfonamides were demonstrated to reversibly regulate the enzymatic activity of carbonic anhydrase, which was found to be dependent on both scaffold effect and thermoresponsiveness.
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Affiliation(s)
- Apan Qian
- Laboratory of Polymer Chemistry, Department of Polymer Materials, College of Materials Science and Engineering, Shanghai University, Materials Building Room 447, Nanchen Street 333, Shanghai 200444, China.
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19
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Ju Y, Zhang M, Zhao H. Poly(ε-caprolactone) with pendant natural peptides: an old polymeric biomaterial with new properties. Polym Chem 2017. [DOI: 10.1039/c7py01012e] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Poly(ε-caprolactone) with pendant glutathione or l-carnosine was synthesized by a combination of ring-opening copolymerization, click chemistry and thiol-disulfide exchange reaction, and the self-assemblies of the polymers were investigated.
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Affiliation(s)
- Yuanyuan Ju
- Key Laboratory of Functional Polymer Materials
- Ministry of Education
- College of Chemistry
- Nankai University
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin)
| | - Mingming Zhang
- Tianjin Key Laboratory of Biomedical Materials
- Institute of Biomedical Engineering
- Chinese Academy of Medical Sciences & Peking Union Medical College
- Tianjin 300192
- China
| | - Hanying Zhao
- Key Laboratory of Functional Polymer Materials
- Ministry of Education
- College of Chemistry
- Nankai University
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin)
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