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Kamalov MI, Đặng T, Petrova NV, Laikov AV, Luong D, Akhmadishina RA, Lukashkin AN, Abdullin TI. Self-assembled nanoformulation of methylprednisolone succinate with carboxylated block copolymer for local glucocorticoid therapy. Colloids Surf B Biointerfaces 2018; 164:78-88. [DOI: 10.1016/j.colsurfb.2018.01.014] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2017] [Revised: 01/09/2018] [Accepted: 01/10/2018] [Indexed: 02/07/2023]
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Salakhieva D, Shevchenko V, Németh C, Gyarmati B, Szilágyi A, Abdullin T. Structure-biocompatibility and transfection activity relationships of cationic polyaspartamides with (dialkylamino)alkyl and alkyl or hydroxyalkyl side groups. Int J Pharm 2016; 517:234-246. [PMID: 27931785 DOI: 10.1016/j.ijpharm.2016.12.007] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2016] [Accepted: 12/02/2016] [Indexed: 01/18/2023]
Abstract
A series of 14 cationic derivatives of poly(aspartic acid) i.e. cationic polyaspartamides with different (dialkylamino)alkyl and alkyl or hydroxyalkyl side groups was synthesized by nucleophilic addition on polysuccinimide. The resulting polyaspartamides have moderate amphiphilic properties. Relationships between the structure and ratio of side groups and in vitro properties of polyaspartamides, including their cytotoxic and membrane-damaging activity towards human cell lines, primary skin fibroblasts and erythrocytes, were established and discussed. Cationic polyaspartamides vary in their DNA-binding, condensing and nuclease-protecting characteristics depending on the concentration ratio of (dialkylamino)alkyl and alkyl or hydroxyalkyl side groups. Effective cell transfection was achieved upon polyaspartamide-mediated plasmid DNA delivery in serum-free medium in the presence of chloroquine. Effect of serum proteins adsorption onto polyaspartamide based polyplexes, and the role of concentration of polyplexes in culture medium in their colloidal stability and transfection process were demonstrated. Synthesized polyaspartamides are biocompatible and long-acting gene carriers, which are applied to cells after dilution and without washing, thus providing transfection level comparable to that of commercial transfection reagent.
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Affiliation(s)
- Diana Salakhieva
- Institute of Fundamental Medicine and Biology, Kazan (Volga Region) Federal University, 18 Kremlyovskaya St., 420008 Kazan, Russia
| | - Vesta Shevchenko
- Institute of Fundamental Medicine and Biology, Kazan (Volga Region) Federal University, 18 Kremlyovskaya St., 420008 Kazan, Russia
| | - Csaba Németh
- Department of Physical Chemistry and Materials Science, Budapest University of Technology and Economics, Műegyetem rkp. 3, H-1111 Budapest, Hungary
| | - Benjámin Gyarmati
- Department of Physical Chemistry and Materials Science, Budapest University of Technology and Economics, Műegyetem rkp. 3, H-1111 Budapest, Hungary
| | - András Szilágyi
- Department of Physical Chemistry and Materials Science, Budapest University of Technology and Economics, Műegyetem rkp. 3, H-1111 Budapest, Hungary.
| | - Timur Abdullin
- Institute of Fundamental Medicine and Biology, Kazan (Volga Region) Federal University, 18 Kremlyovskaya St., 420008 Kazan, Russia.
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Anti-Radical and Cytotoxic Activity of Polysuccinimide and Polyaspartic Acid of Different Molecular Weight. BIONANOSCIENCE 2016. [DOI: 10.1007/s12668-016-0230-0] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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Peng T, Liu K, Gao L, Gao L, Chen J, Wang J, Liu Y, Wang Y, Yan Z, Yu L. Poly (l-γ-glutamylglutamine) Polymer Enhances Doxorubicin Accumulation in Multidrug Resistant Breast Cancer Cells. Molecules 2016; 21:molecules21060720. [PMID: 27271578 PMCID: PMC6272971 DOI: 10.3390/molecules21060720] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2016] [Revised: 05/22/2016] [Accepted: 05/27/2016] [Indexed: 11/28/2022] Open
Abstract
Background: Drug resistance is one of the bottlenecks of cancer chemotherapy in the clinic. Polymeric nanomedicine is one of the most promising strategies for overcoming poor chemotherapy responses due to the multidrug resistance (MDR). Methods: In this study, a new polymer-based drug delivery system, poly (l-γ-glutamylglutamine)-doxorubicin (PGG-Dox) conjugate, was studied in both drug-induced resistant human breast cancer MDA-MB-231/MDR cells and their parent human breast cancer MDA-MB-231 cells. The effect of PGG on facilitating the growth inhibition of Dox against multidrug resistant cells were investigated by evaluating the cytotoxicity of PGG-Dox conjugate, PGG/Dox unconjugated complex and free Dox on both cells. The underlying mechanisms in resistant cells were further studied via the intracellular traffic studies. Results: Both conjugated and unconjugated PGG significantly increased Dox uptake, prolonged Dox retention and reduced Dox efflux in the MDA-MB-231/MDR cells. The PGG-Dox conjugate is taken up by tumor cells mainly by pinocytosis pathway, in which PGG-Dox conjugate-containing vesicles are formed and enter the cells. Conclusions: This study indicated that both polymer-drug conjugate and unconjugated complex are promising strategies of overcoming resistance of anti-tumor drugs.
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Affiliation(s)
- Ting Peng
- Institute of Biomedical Engineering and Technology, School of Chemistry and Molecular Engineering, East China Normal University, Shanghai 200062, China.
| | - Kai Liu
- Institute of Biomedical Engineering and Technology, School of Chemistry and Molecular Engineering, East China Normal University, Shanghai 200062, China.
| | - Liefang Gao
- Institute of Biomedical Engineering and Technology, School of Chemistry and Molecular Engineering, East China Normal University, Shanghai 200062, China.
| | - Lipeng Gao
- Institute of Biomedical Engineering and Technology, School of Chemistry and Molecular Engineering, East China Normal University, Shanghai 200062, China.
| | - Jing Chen
- Institute of Biomedical Engineering and Technology, School of Chemistry and Molecular Engineering, East China Normal University, Shanghai 200062, China.
| | - Jing Wang
- Institute of Biomedical Engineering and Technology, School of Chemistry and Molecular Engineering, East China Normal University, Shanghai 200062, China.
| | - Yu Liu
- Key Laboratory of Smart Drug Delivery, Ministry of Education & PLA, Department of Pharmaceutics, School of Pharmacy, Fudan University, Shanghai 201203, China.
| | - Yiting Wang
- Institute of Biomedical Engineering and Technology, School of Chemistry and Molecular Engineering, East China Normal University, Shanghai 200062, China.
| | - Zhiqiang Yan
- Institute of Biomedical Engineering and Technology, School of Chemistry and Molecular Engineering, East China Normal University, Shanghai 200062, China.
| | - Lei Yu
- Institute of Biomedical Engineering and Technology, School of Chemistry and Molecular Engineering, East China Normal University, Shanghai 200062, China.
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Kamalov MI, Lavrov IA, Yergeshov AA, Siraeva ZY, Baltin ME, Rizvanov AA, Kuznetcova SV, Petrova NV, Savina IN, Abdullin TI. Non-invasive topical drug delivery to spinal cord with carboxyl-modified trifunctional copolymer of ethylene oxide and propylene oxide. Colloids Surf B Biointerfaces 2016; 140:196-203. [PMID: 26764102 DOI: 10.1016/j.colsurfb.2015.12.035] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2015] [Revised: 11/20/2015] [Accepted: 12/18/2015] [Indexed: 01/14/2023]
Abstract
In this study the effect of oxidative modification on micellar and drug delivery properties of copolymers of ethylene oxide (EO) and propylene oxide (PO) was investigated. Carboxylated trifunctional copolymers were synthesized in the reaction with chromium(VI) oxide. We found that carboxylation significantly improved the uniformity and stability of polymeric micelles by inhibiting the microphase transition. The cytotoxicity of copolymers was studied in relation to their aggregative state on two cell types (cancer line vs. primary fibroblasts). The accumulation of rhodamine 123 in neuroblastoma SH-SY5Y cells was dramatically increased in the presence of the oxidized block copolymer with the number of PO and EO units of 83.5 and 24.2, respectively. The copolymer was also tested as an enhancer for topical drug delivery to the spinal cord when applied subdurally. The oxidized copolymer facilitated the penetration of rhodamine 123 across spinal cord tissues and increased its intraspinal accumulation. These results show the potential of using oxidized EO/PO based polymers for non-invasive delivery of protective drugs after spinal cord injury.
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Affiliation(s)
- Marat I Kamalov
- Kazan (Volga Region) Federal University, 18 Kremlyovskaya St., 420008 Kazan, Russia
| | - Igor A Lavrov
- Kazan (Volga Region) Federal University, 18 Kremlyovskaya St., 420008 Kazan, Russia.
| | - Abdulla A Yergeshov
- Kazan (Volga Region) Federal University, 18 Kremlyovskaya St., 420008 Kazan, Russia
| | - Zulfira Y Siraeva
- Kazan (Volga Region) Federal University, 18 Kremlyovskaya St., 420008 Kazan, Russia
| | - Maxim E Baltin
- Kazan (Volga Region) Federal University, 18 Kremlyovskaya St., 420008 Kazan, Russia
| | - Albert A Rizvanov
- Kazan (Volga Region) Federal University, 18 Kremlyovskaya St., 420008 Kazan, Russia
| | | | - Natalia V Petrova
- Kazan (Volga Region) Federal University, 18 Kremlyovskaya St., 420008 Kazan, Russia
| | - Irina N Savina
- School of Pharmacy and Biomolecular Sciences, University of Brighton, Huxley Building, Lewes Road, Brighton BN2 4GJ, UK
| | - Timur I Abdullin
- Kazan (Volga Region) Federal University, 18 Kremlyovskaya St., 420008 Kazan, Russia.
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Giri A, Bhunia T, Pal A, Goswami L, Bandyopadhyay A. In-situ synthesis of polyacrylate grafted carboxymethyl guargum–carbon nanotube membranes for potential application in controlled drug delivery. Eur Polym J 2016. [DOI: 10.1016/j.eurpolymj.2015.11.007] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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7
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Bondar O, Shevchenko V, Martynova A, Salakhieva D, Savina I, Shtyrlin Y, Abdullin T. Intracellular delivery of VEGF165 encoding gene therapeutic using trifunctional copolymers of ethylene oxide and propylene oxide. Eur Polym J 2015. [DOI: 10.1016/j.eurpolymj.2015.03.042] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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