1
|
Snyder D, Emrick T. Embedding Thiols into Choline Phosphate Polymer Zwitterions. Macromol Rapid Commun 2024; 45:e2300690. [PMID: 38207336 DOI: 10.1002/marc.202300690] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2023] [Revised: 01/02/2024] [Indexed: 01/13/2024]
Abstract
The compositional scope of polymer zwitterions has grown significantly in recent years and now offers designer synthetic materials that are broadly applicable across numerous areas, including supracolloidal structures, electronic materials interfaces, and macromolecular therapeutics. Among recent developments in polymer zwitterion syntheses are those that allow insertion of reactive functionality directly into the zwitterionic moiety, yielding new monomer and polymer structures that hold potential for maximizing the impact of zwitterions on the macromolecular materials chemistry field. This manuscript describes the preparation of zwitterionic choline phosphate (CP) methacrylates containing either aromatic or aliphatic thiols embedded directly into the zwitterionic moiety. The polymerization of these functional CP methacrylates by reversible addition-fragmentation chain-transfer methodology yields polymeric zwitterionic thiols containing protected thiol functionality in the zwitterionic units. After polymerization, the protected thiols are liberated to yield thiol-rich polymer zwitterions which serve as precursors to subsequent reactions that produce polymer networks as well as polymer-protein bioconjugates.
Collapse
Affiliation(s)
- Deborah Snyder
- Polymer Science & Engineering Department, Conte Center for Polymer Research University of Massachusetts, Amherst, MA, 01003, USA
| | - Todd Emrick
- Polymer Science & Engineering Department, Conte Center for Polymer Research University of Massachusetts, Amherst, MA, 01003, USA
| |
Collapse
|
2
|
Yan Y, Zhu F, Su H, Liu X, Ren Q, Huang F, Ye W, Zhao M, Zhao Y, Zhao J, Shuai Q. Construction of Degradable and Amphiphilic Triblock Polymer Carriers for Effective Delivery of siRNA. Macromol Biosci 2022; 22:e2200232. [PMID: 36086889 DOI: 10.1002/mabi.202200232] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2022] [Revised: 08/17/2022] [Indexed: 01/15/2023]
Abstract
The development of effective and safe delivery carriers is one of the prerequisites for the clinical translation of siRNA-based therapeutics. In this study, a library of 144 functional triblock polymers using ring-opening polymerization (ROP) and thiol-ene click reaction is constructed. These triblock polymers are composed of hydrophilic poly (ethylene oxide) (PEO), hydrophobic poly (ε-caprolactone) (PCL), and cationic amine blocks. Three effective carriers are discovered by high-throughput screening of these polymers for siRNA delivery to HeLa-Luc cells. In vitro evaluation shows that siLuc-loaded nanoparticles (NPs) fabricated with leading polymer carriers exhibit sufficient knockdown of luciferase genes and relatively low cytotoxicity. The chemical structure of polymers significantly affects the physicochemical properties of the resulting siRNA-loaded NPs, which leads to different cellular uptake of NPs and endosomal escape of loaded siRNA and thus the overall in vitro siRNA delivery efficacy. After systemic administration to mice with xenograft tumors, siRNA NPs based on P2-4.5A8 are substantially accumulated at tumor sites, suggesting that PEO and PCL blocks are beneficial for improving blood circulation and biodistribution of siRNA NPs. This functional triblock polymer platform may have great potential in the development of siRNA-based therapies for the treatment of cancers.
Collapse
Affiliation(s)
- Yunfeng Yan
- College of Biotechnology and Bioengineering, Zhejiang University of Technology, Hangzhou, Zhejiang, 310014, P. R. China
| | - Fangtao Zhu
- Collaborative Innovation Center of Yangtze River Delta Region Green Pharmaceuticals, Zhejiang University of Technology, Hangzhou, Zhejiang, 310014, P. R. China
| | - Huahui Su
- Collaborative Innovation Center of Yangtze River Delta Region Green Pharmaceuticals, Zhejiang University of Technology, Hangzhou, Zhejiang, 310014, P. R. China
| | - Xiaomin Liu
- College of Biotechnology and Bioengineering, Zhejiang University of Technology, Hangzhou, Zhejiang, 310014, P. R. China
| | - Qidi Ren
- College of Biotechnology and Bioengineering, Zhejiang University of Technology, Hangzhou, Zhejiang, 310014, P. R. China
| | - Fangqian Huang
- College of Biotechnology and Bioengineering, Zhejiang University of Technology, Hangzhou, Zhejiang, 310014, P. R. China
| | - Wenbo Ye
- College of Biotechnology and Bioengineering, Zhejiang University of Technology, Hangzhou, Zhejiang, 310014, P. R. China
| | - Mengdan Zhao
- Women's Hospital, School of Medicine, Zhejiang University and Key Laboratory of Women's Reproductive Health Research of Zhejiang Province, Hangzhou, Zhejiang, 310006, P. R. China
| | - Yunchun Zhao
- Women's Hospital, School of Medicine, Zhejiang University and Key Laboratory of Women's Reproductive Health Research of Zhejiang Province, Hangzhou, Zhejiang, 310006, P. R. China
| | - Junpeng Zhao
- School of Materials Science and Engineering, South China University of Technology, Guangzhou, Guangdong, 510641, P. R. China
| | - Qi Shuai
- Collaborative Innovation Center of Yangtze River Delta Region Green Pharmaceuticals, Zhejiang University of Technology, Hangzhou, Zhejiang, 310014, P. R. China
| |
Collapse
|
3
|
Subhan MA, Attia SA, Torchilin VP. Advances in siRNA delivery strategies for the treatment of MDR cancer. Life Sci 2021; 274:119337. [PMID: 33713664 DOI: 10.1016/j.lfs.2021.119337] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2021] [Revised: 03/02/2021] [Accepted: 03/04/2021] [Indexed: 12/18/2022]
Abstract
RNA interference (RNAi) represents a promising therapeutic method that uses siRNA for cancer treatment. Although the RNAi technique has been increasingly used for clinical trials, systemic siRNA delivery into targeted cells is still challenging. The barriers impeding siRNA therapeutics delivery and impacting the treatment outcome must overcome with negligible systemic toxicity for a desirable and successful delivery of siRNA to MDR cancer cells. Nano delivery strategies have been investigated for nanocarrier functionalization, cancer immunotherapy and cancer targeting. Lipid nanoparticles (LNPs), dynamic polyconjugates (DPC™), GalNAc-siRNA conjugates, exosome and RBC systems have shown potential for efficient delivery of siRNA to cancer cells. Delivery of siRNA to tumor cells, immune cells to regulate T cell functions for immunotherapy are promising approaches.
Collapse
Affiliation(s)
- Md Abdus Subhan
- Department of Chemistry, ShahJalal University of Science and Technology, Sylhet 3114, Bangladesh.
| | - Sara Aly Attia
- CPBN, Department of Pharmaceutical Sciences, Northeastern University, Boston, MA 02115, USA
| | - Vladimir P Torchilin
- CPBN, Department of Pharmaceutical Sciences, Northeastern University, Boston, MA 02115, USA; Department of Oncology, Radiotherapy and Plastic Surgery I.M. Sechenov First Moscow State Medical University (Sechenov University), Moscow, Russia.
| |
Collapse
|
4
|
Song J, Wang D, Wang J, Shen Q, Xie C, Lu W, Wang R, Liu M. Low molecular weight polyethyleneimine modified by 2-aminoimidazole achieving excellent gene transfection efficiency. Eur Polym J 2020. [DOI: 10.1016/j.eurpolymj.2020.110017] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
|
5
|
Yin Y, Lee MS, Lee JE, Lim SY, Kim ES, Jeong J, Kim D, Kim J, Lee DS, Jeong JH. Effective systemic siRNA delivery using dual-layer protected long-circulating nanohydrogel containing an inorganic core. Biomater Sci 2019; 7:3297-3306. [DOI: 10.1039/c9bm00369j] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
PEG-dex-dopa nanohydrogel containing a CaP/siRNA core could achieve extended circulation with reduced RES accumulation, resulting in increased tumor accumulation.
Collapse
|