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Zhang M, Peng X, Ding Y, Ke X, Ren K, Xin Q, Qin M, Xie J, Li J. A cyclic brush zwitterionic polymer based pH-responsive nanocarrier-mediated dual drug delivery system with lubrication maintenance for osteoarthritis treatment. MATERIALS HORIZONS 2023. [PMID: 37078123 DOI: 10.1039/d3mh00218g] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/03/2023]
Abstract
Enhanced joint synergistic lubrication combined with anti-inflammatory therapy is an effective strategy to delay the progression of early osteoarthritis (OA) but has been rarely reported. The hydration lubrication of zwitterions and inherent super-lubrication properties of the cyclic brush, as well as the enhancement of the steric stability of the cyclic topology, can effectively improve the drug loading and utilization; herein we report a pH-responsive cyclic brush zwitterionic polymer (CB) with SBMA and DMAEMA as brushes and a cyclic polymer (c-P(HEMA)) as the core template, possessing a low coefficient of friction (0.017). After loading with hydrophobic curcumin and hydrophilic loxoprofen sodium it demonstrates high drug-loading efficiency. In vitro and in vivo experiments confirmed the triple function of the CB on superlubrication, sequence controlled release and anti-inflammatory effects demonstrated by Micro CT, histological analysis and qRT-PCR. Overall, the CB is a promising long-acting lubricating therapeutic agent, with potential for OA treatment or other diseases.
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Affiliation(s)
- Miao Zhang
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu 610065, P. R. China.
| | - Xu Peng
- Experimental and Research Animal Institute, Sichuan University, Chengdu 610065, P. R. China
| | - Yuan Ding
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu 610065, P. R. China.
| | - Xiang Ke
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu 610065, P. R. China.
| | - Kai Ren
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu 610065, P. R. China.
| | - Qiangwei Xin
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu 610065, P. R. China.
| | - Meng Qin
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu 610065, P. R. China.
| | - Jing Xie
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu 610065, P. R. China.
| | - Jianshu Li
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu 610065, P. R. China.
- State Key Laboratory of Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, P. R. China
- Med-X Center for Materials, Sichuan University, Chengdu 610041, P. R. China
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Chimala P, Perera MM, Wade A, McKenzie T, Allor J, Ayres N. Hyperbranched polymer hydrogels with large stimuli-responsive changes in storage moduli and peroxide-induced healing. Polym Chem 2021. [DOI: 10.1039/d1py00560j] [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
Hydrogels prepared using hyperbranched polymers with dynamic disulfide bonds show larger changes in moduli upon exposure to chemical stimuli for both softening and stiffening responses compared to linear polymers.
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Affiliation(s)
| | - M. Mario Perera
- Department of Chemistry
- The University of Cincinnati
- Cincinnati
- USA
| | - Aissatou Wade
- Department of Chemistry
- The University of Cincinnati
- Cincinnati
- USA
| | - Tucker McKenzie
- Department of Chemistry
- The University of Cincinnati
- Cincinnati
- USA
| | - Joshua Allor
- Department of Chemistry
- The University of Cincinnati
- Cincinnati
- USA
| | - Neil Ayres
- Department of Chemistry
- The University of Cincinnati
- Cincinnati
- USA
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