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Li Z, Crago M, Schofield T, Zeng H, Vyas HKN, Müllner M, Mai-Prochnow A, Farajikhah S, Naficy S, Dehghani F, Talebian S. Synthesis and Evaluation of Functionalized Polyurethanes for pH-Responsive Delivery of Compounds in Chronic Wounds. Gels 2023; 9:611. [PMID: 37623066 PMCID: PMC10454082 DOI: 10.3390/gels9080611] [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: 07/07/2023] [Revised: 07/25/2023] [Accepted: 07/27/2023] [Indexed: 08/26/2023] Open
Abstract
Chronic wounds, depending on the bacteria that caused the infection, can be associated with an extreme acidic or basic pH. Therefore, the application of pH-responsive hydrogels has been instigated for the delivery of therapeutics to chronic wounds. Herein, with the aim of developing a flexible pH-responsive hydrogel, we functionalized hydrophilic polyurethanes with either cationic (polyethylene imine) or anionic (succinic anhydride) moieties. A comprehensive physicochemical characterization of corresponding polymers was carried out. Particularly, when tested in aqueous buffers, the surface charge of hydrogel films was closely correlated with the pH of the buffers. The loading of the cationic and anionic hydrogel films with various compound models (bromophenol blue; negatively charged or Pyronin Y; positively charged) showed that the electrostatic forces between the polymeric backbone and the compound model will determine the ultimate release rate at any given pH. The potential application of these films for chronic wound drug delivery was assessed by loading them with an antibiotic (ciprofloxacin). In vitro bacterial culturing was performed using Staphylococcus aureus (S. aureus) and Escherichia coli (E. coli). Results showed that at the same drug dosage, different release profiles achievable from cationic and anionic polyurethanes can yield different degrees of an antibacterial effect. Overall, our results suggest the potential application of cationic and anionic hydrophilic polyurethanes as flexible pH-responsive materials for the delivery of therapeutics to chronic wounds.
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Affiliation(s)
- Zhongyan Li
- Faculty of Engineering, School of Chemical and Biomolecular Engineering, The University of Sydney, Sydney, NSW 2006, Australia; (Z.L.); (M.C.); (T.S.); (H.K.N.V.); (A.M.-P.); (S.F.); (F.D.)
| | - Matthew Crago
- Faculty of Engineering, School of Chemical and Biomolecular Engineering, The University of Sydney, Sydney, NSW 2006, Australia; (Z.L.); (M.C.); (T.S.); (H.K.N.V.); (A.M.-P.); (S.F.); (F.D.)
| | - Timothy Schofield
- Faculty of Engineering, School of Chemical and Biomolecular Engineering, The University of Sydney, Sydney, NSW 2006, Australia; (Z.L.); (M.C.); (T.S.); (H.K.N.V.); (A.M.-P.); (S.F.); (F.D.)
| | - Haoxiang Zeng
- Key Centre for Polymers and Colloids, School of Chemistry, The University of Sydney, Sydney, NSW 2006, Australia; (H.Z.); (M.M.)
| | - Heema Kumari Nilesh Vyas
- Faculty of Engineering, School of Chemical and Biomolecular Engineering, The University of Sydney, Sydney, NSW 2006, Australia; (Z.L.); (M.C.); (T.S.); (H.K.N.V.); (A.M.-P.); (S.F.); (F.D.)
- Sydney Institute for Infectious Diseases, The University of Sydney, Sydney, NSW 2006, Australia
| | - Markus Müllner
- Key Centre for Polymers and Colloids, School of Chemistry, The University of Sydney, Sydney, NSW 2006, Australia; (H.Z.); (M.M.)
- Nano Institute (Sydney Nano), The University of Sydney, Sydney, NSW 2006, Australia
| | - Anne Mai-Prochnow
- Faculty of Engineering, School of Chemical and Biomolecular Engineering, The University of Sydney, Sydney, NSW 2006, Australia; (Z.L.); (M.C.); (T.S.); (H.K.N.V.); (A.M.-P.); (S.F.); (F.D.)
| | - Syamak Farajikhah
- Faculty of Engineering, School of Chemical and Biomolecular Engineering, The University of Sydney, Sydney, NSW 2006, Australia; (Z.L.); (M.C.); (T.S.); (H.K.N.V.); (A.M.-P.); (S.F.); (F.D.)
- Nano Institute (Sydney Nano), The University of Sydney, Sydney, NSW 2006, Australia
| | - Sina Naficy
- Faculty of Engineering, School of Chemical and Biomolecular Engineering, The University of Sydney, Sydney, NSW 2006, Australia; (Z.L.); (M.C.); (T.S.); (H.K.N.V.); (A.M.-P.); (S.F.); (F.D.)
- Nano Institute (Sydney Nano), The University of Sydney, Sydney, NSW 2006, Australia
| | - Fariba Dehghani
- Faculty of Engineering, School of Chemical and Biomolecular Engineering, The University of Sydney, Sydney, NSW 2006, Australia; (Z.L.); (M.C.); (T.S.); (H.K.N.V.); (A.M.-P.); (S.F.); (F.D.)
- Nano Institute (Sydney Nano), The University of Sydney, Sydney, NSW 2006, Australia
| | - Sepehr Talebian
- Faculty of Engineering, School of Chemical and Biomolecular Engineering, The University of Sydney, Sydney, NSW 2006, Australia; (Z.L.); (M.C.); (T.S.); (H.K.N.V.); (A.M.-P.); (S.F.); (F.D.)
- Nano Institute (Sydney Nano), The University of Sydney, Sydney, NSW 2006, Australia
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Chien CS, Chien Y, Lin YY, Tsai PH, Chou SJ, Yarmishyn AA, Rastegari E, Wang TX, Leu HB, Yang YP, Wang ML, Jheng YC, Lai HIAM, Ching LJ, Huo TI, Cherng JY, Wang CY. Dual DNA Transfection Using 1,6-Hexanedithiol-Conjugated Maleimide-Functionalized PU-PEI 600 For Gene Correction in a Patient iPSC-Derived Fabry Cardiomyopathy Model. Front Cell Dev Biol 2021; 9:634190. [PMID: 34422789 PMCID: PMC8371449 DOI: 10.3389/fcell.2021.634190] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2020] [Accepted: 07/14/2021] [Indexed: 11/25/2022] Open
Abstract
Non-viral gene delivery holds promises for treating inherited diseases. However, the limited cloning capacity of plasmids may hinder the co-delivery of distinct genes to the transfected cells. Previously, the conjugation of maleimide-functionalized polyurethane grafted with small molecular weight polyethylenimine (PU-PEI600-Mal) using 1,6-hexanedithiol (HDT) could promote the co-delivery and extensive co-expression of two different plasmids in target cells. Herein, we designed HDT-conjugated PU-PEI600-Mal for the simultaneous delivery of CRISPR/Cas9 components to achieve efficient gene correction in the induced pluripotent stem cell (iPSC)-derived model of Fabry cardiomyopathy (FC) harboring GLA IVS4 + 919 G > A mutation. This FC in vitro model recapitulated several clinical FC features, including cardiomyocyte hypertrophy and lysosomal globotriaosylceramide (Gb3) deposition. As evidenced by the expression of two reporter genes, GFP and mCherry, the addition of HDT conjugated two distinct PU-PEI600-Mal/DNA complexes and promoted the co-delivery of sgRNA/Cas9 and homology-directed repair DNA template into target cells to achieve an effective gene correction of IVS4 + 919 G > A mutation. PU-PEI600-Mal/DNA with or without HDT-mediated conjugation consistently showed neither the cytotoxicity nor an adverse effect on cardiac induction of transfected FC-iPSCs. After the gene correction and cardiac induction, disease features, including cardiomyocyte hypertrophy, the mis-regulated gene expressions, and Gb3 deposition, were remarkably rescued in the FC-iPSC-differentiated cardiomyocytes. Collectively, HDT-conjugated PU-PEI600-Mal-mediated dual DNA transfection system can be an ideal approach to improve the concurrent transfection of non-viral-based gene editing system in inherited diseases with specific mutations.
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Affiliation(s)
- Chian-Shiu Chien
- Department of Medical Research, Taipei Veterans General Hospital, Taipei, Taiwan.,School of Medicine, National Yang-Ming Medical University, Taipei, Taiwan
| | - Yueh Chien
- Department of Medical Research, Taipei Veterans General Hospital, Taipei, Taiwan.,School of Medicine, National Yang-Ming Medical University, Taipei, Taiwan
| | - Yi-Ying Lin
- Department of Medical Research, Taipei Veterans General Hospital, Taipei, Taiwan.,School of Medicine, National Yang-Ming Medical University, Taipei, Taiwan.,Institute of Pharmacology, National Yang-Ming University, Taipei, Taiwan
| | - Ping-Hsing Tsai
- Department of Medical Research, Taipei Veterans General Hospital, Taipei, Taiwan.,School of Medicine, National Yang-Ming Medical University, Taipei, Taiwan.,Institute of Pharmacology, National Yang-Ming University, Taipei, Taiwan
| | - Shih-Jie Chou
- Department of Medical Research, Taipei Veterans General Hospital, Taipei, Taiwan.,School of Medicine, National Yang-Ming Medical University, Taipei, Taiwan.,Institute of Pharmacology, National Yang-Ming University, Taipei, Taiwan
| | - Aliaksandr A Yarmishyn
- Department of Medical Research, Taipei Veterans General Hospital, Taipei, Taiwan.,School of Medicine, National Yang-Ming Medical University, Taipei, Taiwan
| | - Elham Rastegari
- Department of Medical Research, Taipei Veterans General Hospital, Taipei, Taiwan
| | - Ting-Xian Wang
- Department of Chemistry and Biochemistry, National Chung-Cheng University, Chiayi County, Taiwan
| | - Hsin-Bang Leu
- School of Medicine, National Yang-Ming Medical University, Taipei, Taiwan.,Heath Care and Management Center, Taipei Veterans General Hospital, Taipei, Taiwan
| | - Yi-Ping Yang
- Department of Medical Research, Taipei Veterans General Hospital, Taipei, Taiwan.,School of Medicine, National Yang-Ming Medical University, Taipei, Taiwan.,School of Pharmaceutical Sciences, Institute of Food Safety and Health Risk Assessment, National Yang-Ming University, Taipei, Taiwan
| | - Mong-Lien Wang
- Department of Medical Research, Taipei Veterans General Hospital, Taipei, Taiwan.,School of Medicine, National Yang-Ming Medical University, Taipei, Taiwan.,School of Pharmaceutical Sciences, Institute of Food Safety and Health Risk Assessment, National Yang-Ming University, Taipei, Taiwan
| | - Ying-Chun Jheng
- Department of Medical Research, Taipei Veterans General Hospital, Taipei, Taiwan
| | - Henkie Isahwan Ahmad Mulyadi Lai
- Institute of Pharmacology, National Yang-Ming University, Taipei, Taiwan.,Department of Medical Laboratory, Faculty of Health Sciences, University of Selangor, Selangor, Malaysia
| | - Lo-Jei Ching
- Department of Medical Research, Taipei Veterans General Hospital, Taipei, Taiwan
| | - Teh-Ia Huo
- Department of Medical Research, Taipei Veterans General Hospital, Taipei, Taiwan.,School of Medicine, National Yang-Ming Medical University, Taipei, Taiwan.,Institute of Pharmacology, National Yang-Ming University, Taipei, Taiwan.,Division of Gastroenterology, Department of Internal Medicine, Taipei Veterans General Hospital, Taipei, Taiwan
| | - Jong-Yuh Cherng
- Department of Chemistry and Biochemistry, National Chung-Cheng University, Chiayi County, Taiwan
| | - Chien-Ying Wang
- School of Medicine, National Yang-Ming Medical University, Taipei, Taiwan.,Division of Trauma, Department of Emergency Medicine, Taipei Veterans General Hospital, Taipei, Taiwan
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Mesa-Antunez P, Collado D, Vida Y, Najera F, Fernandez T, Torres MJ, Perez-Inestrosa E. Fluorescent BAPAD Dendrimeric Antigens Are Efficiently Internalized by Human Dendritic Cells. Polymers (Basel) 2016; 8:E111. [PMID: 30979201 PMCID: PMC6432222 DOI: 10.3390/polym8040111] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2016] [Revised: 03/16/2016] [Accepted: 03/18/2016] [Indexed: 12/29/2022] Open
Abstract
A new fluorescent dendrimeric antigen (DeAn) based on a dendron with amoxicilloyl terminal groups was synthesized. The synthesis was carried out using a novel class of all-aliphatic polyamide dendrimer (BisAminoalkylPolyAmide Dendrimers, or BAPAD) involving the direct condensation of 3,3'-diazidopivalic acid as a building block. Iterative azide reduction/amide formation increases the dendrimer generation. The BAPAD dendrimer was designed with a cystamine core. Reduction of the disulfide bond allows the incorporation of BAPAD dendrons into a 1,8-naphthalimide functionalized with a maleimide group. The fluorescence properties of DeAn were studied in PBS and compared with the properties of an equivalent dendron possessing amino-terminal groups. Both molecules shown high fluorescence quantum yields in PBS and could readily be visualized by fluorescence microscopy. DeAn was used as a synthetic antigen in a biomedical assay that tests their potential as an amoxicillin carrier in drug internalization by dendritic cells (DC) from tolerant and allergic patients. Cytometry data suggest that the dendrons are non-toxic and easily internalized by DCs, while confocal microscopy images indicate that the compounds are preferentially accumulated in the cytoplasm. These results indicate that BAPAD dendrons are good candidates for synthetic scaffolds for biomedical applications.
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Affiliation(s)
- Pablo Mesa-Antunez
- Department of Organic Chemistry, University of Malaga, IBIMA, 29071 Malaga, Spain.
- Andalusian Centre for Nanomedicine and Biotechnology- BIONAND, Parque Tecnologico de Andalucia, 29590 Malaga, Spain.
| | - Daniel Collado
- Department of Organic Chemistry, University of Malaga, IBIMA, 29071 Malaga, Spain.
- Andalusian Centre for Nanomedicine and Biotechnology- BIONAND, Parque Tecnologico de Andalucia, 29590 Malaga, Spain.
| | - Yolanda Vida
- Department of Organic Chemistry, University of Malaga, IBIMA, 29071 Malaga, Spain.
- Andalusian Centre for Nanomedicine and Biotechnology- BIONAND, Parque Tecnologico de Andalucia, 29590 Malaga, Spain.
| | - Francisco Najera
- Department of Organic Chemistry, University of Malaga, IBIMA, 29071 Malaga, Spain.
- Andalusian Centre for Nanomedicine and Biotechnology- BIONAND, Parque Tecnologico de Andalucia, 29590 Malaga, Spain.
| | - Tahia Fernandez
- Research Laboratory, Regional University Hospital of Malaga-IBIMA, 29010 Malaga, Spain.
| | - Maria Jose Torres
- Research Laboratory, Regional University Hospital of Malaga-IBIMA, 29010 Malaga, Spain.
- Allergy Service, Regional University Hospital of Malaga-IBIMA, 29010 Malaga, Spain.
| | - Ezequiel Perez-Inestrosa
- Department of Organic Chemistry, University of Malaga, IBIMA, 29071 Malaga, Spain.
- Andalusian Centre for Nanomedicine and Biotechnology- BIONAND, Parque Tecnologico de Andalucia, 29590 Malaga, Spain.
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