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Baker C, Wagner K, Wagner P, Officer DL, Mawad D. Biofunctional conducting polymers: synthetic advances, challenges, and perspectives towards their use in implantable bioelectronic devices. ADVANCES IN PHYSICS: X 2021. [DOI: 10.1080/23746149.2021.1899850] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022] Open
Affiliation(s)
- Carly Baker
- ARC Centre of Excellence for Electromaterials Science and Intelligent Polymer Research Institute, AIIM Faculty, Innovation Campus, University of Wollongong, North Wollongong, Australia
| | - Klaudia Wagner
- ARC Centre of Excellence for Electromaterials Science and Intelligent Polymer Research Institute, AIIM Faculty, Innovation Campus, University of Wollongong, North Wollongong, Australia
| | - Pawel Wagner
- ARC Centre of Excellence for Electromaterials Science and Intelligent Polymer Research Institute, AIIM Faculty, Innovation Campus, University of Wollongong, North Wollongong, Australia
| | - David L. Officer
- ARC Centre of Excellence for Electromaterials Science and Intelligent Polymer Research Institute, AIIM Faculty, Innovation Campus, University of Wollongong, North Wollongong, Australia
| | - Damia Mawad
- School of Materials Science and Engineering, UNSW Science, University of New South Wales, Sydney, Australia
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The morphology, self-assembly, and host-guest properties of cellulose nanocrystals surface grafted with cholesterol. Carbohydr Polym 2020; 233:115840. [DOI: 10.1016/j.carbpol.2020.115840] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2019] [Revised: 01/05/2020] [Accepted: 01/06/2020] [Indexed: 11/22/2022]
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Synthesis and liquid crystal behavior of new side chain aliphatic polycarbonates based on cholesterol. J Mol Liq 2018. [DOI: 10.1016/j.molliq.2018.03.060] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
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Synthesis and fluorescence studies of dual-responsive nanoparticles based on amphiphilic azobenzene-contained poly (monomethyl itaconate). JOURNAL OF POLYMER RESEARCH 2016. [DOI: 10.1007/s10965-016-1061-y] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
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Pourmoazzen Z, Bagheri M, Akbar Entezami A. Cholesteryl-modified poly (monomethyl itaconate)s micelles as nano-carriers for pH-responsive drug delivery. Polym J 2014. [DOI: 10.1038/pj.2014.71] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
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Ghanbarzadeh S, Arami S, Pourmoazzen Z, Khorrami A. Improvement of the antiproliferative effect of rapamycin on tumor cell lines by poly (monomethylitaconate)-based pH-sensitive, plasma stable liposomes. Colloids Surf B Biointerfaces 2013; 115:323-30. [PMID: 24394948 DOI: 10.1016/j.colsurfb.2013.12.024] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2013] [Revised: 12/05/2013] [Accepted: 12/10/2013] [Indexed: 01/05/2023]
Abstract
pH-responsive polymers produce liposomes with pH-sensitive property which can release their encapsulated drug under mild acidic conditions found inside the cellular endosomes, inflammatory tissues and cancerous cells. The aim of this study was preparing pH-sensitive and plasma stable liposomes in order to enhance the selectivity and antiproliferative effect of Rapamycin. In the present study we used PEG-poly (monomethylitaconate)-CholC6 (PEG-PMMI-CholC6) copolymer and Oleic acid (OA) to induce pH-sensitive property in Rapamycin liposomes. pH-sensitive liposomal formulations bearing copolymer PEG-PMMI-CholC6 and OA were characterized in regard to physicochemical stability, pH-responsiveness and stability in human plasma. The ability of pH-sensitive liposomes in enhancing the cytotoxicity of Rapamycin was evaluated in vitro by using colon cancer cell line (HT-29) and compared with its cytotoxicity on human umbilical vein endothelial cell (HUVEC) line. Both formulations were found to release their contents under mild acidic conditions rapidly. However, unlike OA-based liposomes, the PEG-PMMI-CholC6 bearing liposomes preserved their pH-sensitivity in plasma. Both types of pH-sensitive Rapamycin-loaded liposomes exhibited high physicochemical stability and could deliver antiproliferative agent into HT-29 cells much more efficiently in comparison with conventional liposomes. Conversely, the antiproliferative effect of pH-sensitive liposomes on HUVEC cell line was less than conventional liposomes. This study showed that both OA and PEG-PMMI-CholC6-based vesicles could submit pH-sensitive property, however, only PEG-PMMI-CholC6-based liposomes could preserve pH-sensitive property after incubation in plasma. As a result pH-sensitive PEG-PMMI-CholC6-based liposomal formulation can improve the selectivity, stability and antiproliferative effect of Rapamycin.
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Affiliation(s)
- Saeed Ghanbarzadeh
- Research Center for Pharmaceutical Nanotechnology, Tabriz University of Medical Sciences, Tabriz, Iran; Department of Pharmaceutics, Faculty of Pharmacy, Tabriz University of Medical Sciences, Tabriz, Iran; Student Research Committee, Faculty of Pharmacy, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Sanam Arami
- Research Center for Pharmaceutical Nanotechnology, Tabriz University of Medical Sciences, Tabriz, Iran; Student Research Committee, Faculty of Pharmacy, Tabriz University of Medical Sciences, Tabriz, Iran; Department of Pharmaceutical Biotechnology, Faculty of Pharmacy, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Zhaleh Pourmoazzen
- Chemistry Department, Science Faculty, Azarbaijan Shahid Madani University, Iran
| | - Arash Khorrami
- Research Center for Pharmaceutical Nanotechnology, Tabriz University of Medical Sciences, Tabriz, Iran; Student Research Committee, Faculty of Pharmacy, Tabriz University of Medical Sciences, Tabriz, Iran; Department of Pharmacology & Toxicology, Faculty of Pharmacy, Tabriz University of Medical Sciences, Tabriz, Iran.
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Ghanbarzadeh S, Arami S, Pourmoazzen Z, Ghasemian-Yadegari J, Khorrami A. Plasma stable, pH-sensitive fusogenic polymer-modified liposomes: A promising carrier for mitoxantrone. J Biomater Appl 2013; 29:81-92. [PMID: 24336315 DOI: 10.1177/0885328213515288] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Abstract
pH-sensitive liposomes are designed to undergo acid-triggered destabilization. In the present study, we prepared polymer-modified, plasma stable, pH-sensitive fusogenic mitoxantrone liposomes to increase efficacy and selectivity on cancer cell lines. Conventional liposomes were prepared using cholesterol and dipalmitoyl-sn-glycero-3-phosphatidylethanolamine. Dioleoylphosphatidylethanolamine and a cholesteryl derivative, poly(monomethylitaconate)-co-poly(N,N-dimethylaminoethyl methacrylate) (PMMI-co-PDMAEMA), were used for the preparation of pH-sensitive fusogenic liposomes. Using polyethylene glycol (PEG)-poly(monomethylitaconate)-CholC6 (PEG-PMMI-CholC6) copolymers instead of cholesterol introduced pH-sensitive and plasma stability properties simultaneously in prepared liposomes. All formulations were prepared by thin film hydration method and subsequently, pH-sensitivity and stability in human serum were evaluated. The ability of pH-sensitive fusogenic liposomes to enhance the mitoxantrone cytotoxicity and selectivity in cancerous cell lines was assessed in vitro compared to normal cell line using human breast cancer cell line (MCF-7), human prostate cancer cell line (PC-3), and human umbilical vein endothelial cells line. Results revealed that both PMMI-co-PDMAEMA and PEG-PMMI-CholC6-based formulations showed pH-sensitive property and were found to rapidly release mitoxantrone under mildly acidic conditions. Nevertheless, only the PEG-PMMI-CholC6-based liposomes preserved pH-sensitivity after incubation in plasma. Mitoxantrone loaded-pH-sensitive fusogenic liposomes exhibited a higher cytotoxicity than the control conventional liposomes on MCF-7 and PC-3 cell lines. On the contrary, both pH-sensitive fusogenic liposomes showed lower cytotoxic effect on human umbilical vein endothelial cell line. Plasma stable, pH-sensitive fusogenic liposomes are promising carriers for enhancing the efficiency and selectivity, besides reduction of the side effects of anticancer agents.
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Affiliation(s)
- Saeed Ghanbarzadeh
- Research Center for Pharmaceutical Nanotechnology, Tabriz University of Medical Sciences, Tabriz, Iran Department of Pharmaceutics, Faculty of Pharmacy, Tabriz University of Medical Sciences, Tabriz, Iran Student Research Committee, Faculty of Pharmacy, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Sanam Arami
- Student Research Committee, Faculty of Pharmacy, Tabriz University of Medical Sciences, Tabriz, Iran Pharmaceutical Biotechnology Department, Faculty of Pharmacy, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Zhaleh Pourmoazzen
- Chemistry Department, Science Faculty, Azarbaijan Shahid Madani University, Tabriz, Iran
| | - Javad Ghasemian-Yadegari
- Department of Pharmaceutics, Faculty of Pharmacy, Tabriz University of Medical Sciences, Tabriz, Iran Department of Pharmacognosy, Faculty of Pharmacy, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Arash Khorrami
- Student Research Committee, Faculty of Pharmacy, Tabriz University of Medical Sciences, Tabriz, Iran Department of Pharmacology and Toxicology, Faculty of Pharmacy, Tabriz University of Medical Sciences, Tabriz, Iran
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pH-responsive nanosized-micelles based on poly(monomethylitaconate)-co-poly(dimethylaminoethyl methacrylate) and cholesterol side chains effect on pH change-induced release of piroxicam. JOURNAL OF POLYMER RESEARCH 2013. [DOI: 10.1007/s10965-013-0231-4] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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