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Feng Z, Xu J, Ni C. Preparation of redox responsive modified xanthan gum nanoparticles and the drug controlled release. INT J POLYM MATER PO 2020. [DOI: 10.1080/00914037.2020.1767618] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Affiliation(s)
- Zhiyun Feng
- College of Chemistry and Environmental Engineering, Yangtze University, Jingzhou, P. R. China
| | - Jie Xu
- School of Chemical and Material Engineering, Jiangnan University, Wuxi, P. R. China
| | - Caihua Ni
- School of Chemical and Material Engineering, Jiangnan University, Wuxi, P. R. China
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Zhang L, Ding Y, Wen Q, Ni C. Synthesis of core-crosslinked zwitterionic polymer nano aggregates and pH/Redox responsiveness in drug controlled release. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2020; 106:110288. [DOI: 10.1016/j.msec.2019.110288] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/05/2018] [Revised: 08/22/2019] [Accepted: 10/05/2019] [Indexed: 10/25/2022]
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Abstract
Synthetic polymers, biopolymers, and their nanocomposites are being studied, and some of them are already used in different medical areas. Among the synthetic ones that can be mentioned are polyolefins, fluorinated polymers, polyesters, silicones, and others. Biopolymers such as polysaccharides (chitosan, hyaluronic acid, starch, cellulose, alginates) and proteins (silk, fibroin) have also become widely used and investigated for applications in medicine. Besides synthetic polymers and biopolymers, their nanocomposites, which are hybrids formed by a macromolecular matrix and a nanofiller (mineral or organic), have attracted great attention in the last decades in medicine and in other fields due to their outstanding properties. This review covers studies done recently using the polymers, biopolymers, nanocomposites, polymer micelles, nanomicelles, polymer hydrogels, nanogels, polymersomes, and liposomes used in medicine as drugs or drug carriers for cancer therapy and underlines their responses to internal and external stimuli able to make them more active and efficient. They are able to replace conventional cancer drug carriers, with better results.
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Qu J, Peng S, Wang R, Yang ST, Zhou QH, Lin J. Stepwise pH-sensitive and biodegradable polypeptide hybrid micelles for enhanced cellular internalization and efficient nuclear drug delivery. Colloids Surf B Biointerfaces 2019; 181:315-324. [PMID: 31154142 DOI: 10.1016/j.colsurfb.2019.05.071] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2019] [Revised: 04/27/2019] [Accepted: 05/28/2019] [Indexed: 10/26/2022]
Abstract
The short blood circulation time, reduced cellular uptake, and uncontrollable drug release still hinder the polymer micelle as an efficient drug delivery vehicle in clinical applications. In this study, a series of stepwise pH-sensitive and biodegradable polypeptide hybrid terpolymers, poly (lysine-co-N,N-bis(acryloyl) cystamine-co-dimethylmaleic anhydride) (PLB-DMMA), were designed and synthesized to achieve prolonged circulation time, enhanced cellular uptake and controllable anti-cancer drug release. The synthesized terpolymers can self-assemble into spherical nano-micelles (NMs) with narrow distributions and exhibited stepwise responses to extracellular and intracellular pH condition of the tumor cell. The as prepared NMs showed a negative surface charge under normal physiological conditions exhibiting advantageous stability during blood circulation. By the first-step pH response, the surface charge of the NMs switched from negative to positive to enhance cellular uptake under the slightly acidic tumor extracellular environment. After internalization into tumor cells, the second-step pH response resulted in an endosome escape of the NMs via the "proton-sponge" effect in the acidic endo/lysosome environment. Additionally, a rapid drug release was triggered in response to the intracellular reductive environment of tumor cells via the destruction of disulfide-linked polymer chains to enhance the nucleus delivery of DOX. in vitro cell assays showed that the blank NMs showed negligible systemic toxicity against normal cells while the DOX-loaded NMs significantly inhibited growth of the tumor cells. In general, it was suggested that the as developed stepwise pH-sensitive and biodegradable PLB-DMMA based NMs would be a smart and promising drug delivery candidate for anti-cancer chemotherapy.
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Affiliation(s)
- Jing Qu
- College of Chemical and Environment Protection, Southwest Minzu University, First Ring Road, 4th Section No.16, Chengdu, Sichuan 610041, China
| | - Si Peng
- College of Chemical and Environment Protection, Southwest Minzu University, First Ring Road, 4th Section No.16, Chengdu, Sichuan 610041, China
| | - Rui Wang
- College of Chemical and Environment Protection, Southwest Minzu University, First Ring Road, 4th Section No.16, Chengdu, Sichuan 610041, China
| | - Sheng-Tao Yang
- College of Chemical and Environment Protection, Southwest Minzu University, First Ring Road, 4th Section No.16, Chengdu, Sichuan 610041, China
| | - Qing-Han Zhou
- College of Chemical and Environment Protection, Southwest Minzu University, First Ring Road, 4th Section No.16, Chengdu, Sichuan 610041, China.
| | - Juan Lin
- School of Biomedical Sciences and Technology, Chengdu Medical College, 783 Xindu Road, Chengdu, Sichuan 610500, China.
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Zhang L, Xu J, Wen Q, Ni C. Preparation of xanthan gum nanogels and their pH/redox responsiveness in controlled release. J Appl Polym Sci 2019. [DOI: 10.1002/app.47921] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Affiliation(s)
- Liping Zhang
- The Key Laboratory of Food Colloids and Biotechnology, Ministry of Education, School of Chemical and Material EngineeringJiangnan University Wuxi China
| | - Jie Xu
- The Key Laboratory of Food Colloids and Biotechnology, Ministry of Education, School of Chemical and Material EngineeringJiangnan University Wuxi China
| | - Quanwu Wen
- School of Chemistry and Materials ScienceLudong University Yantai 264025 People's Republic of China
| | - Caihua Ni
- The Key Laboratory of Food Colloids and Biotechnology, Ministry of Education, School of Chemical and Material EngineeringJiangnan University Wuxi China
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