|
1
|
Wei Y, He T, Bi Q, Yang H, Hu X, Jin R, Liang H, Zhu Y, Tong R, Nie Y. A cationic lipid with advanced membrane fusion performance for pDNA and mRNA delivery. J Mater Chem B 2023; 11:2095-2107. [PMID: 36810919 DOI: 10.1039/d2tb02783f] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
The success of mRNA vaccines for COVID-19 prevention raised global awareness of the importance of nucleic acid drugs. The approved systems for nucleic acid delivery were mainly formulations of different lipids, yielding lipid nanoparticles (LNPs) with complex internal structures. Due to the multiple components, the relationship between the structure of each component and the overall biological activity of LNPs is hard to study. However, ionizable lipids have been extensively explored. In contrast to former studies on the optimization of hydrophilic parts in single-component self-assemblies, we report in this study on structural alterations of the hydrophobic segment. We synthesize a library of amphiphilic cationic lipids by varying the lengths (C = 8-18), numbers (N = 2, 4), and unsaturation degrees (Ω = 0, 1) of hydrophobic tails. Notably, all self-assemblies with nucleic acid have significant differences in particle size, stability in serum, membrane fusion, and fluidity. Moreover, the novel mRNA/pDNA formulations are characterized by overall low cytotoxicity, efficient compaction, protection, and release of nucleic acids. We find that the length of hydrophobic tails dominates the formation and stability of the assembly. And at a certain length, the unsaturated hydrophobic tails enhance the membrane fusion and fluidity of assemblies and thus significantly affect the transgene expression, followed by the number of hydrophobic tails.
Collapse
Affiliation(s)
- Yu Wei
- National Engineering Research Center for Biomaterials/College of Biomedical Engineering, Sichuan University, Chengdu 610064, China.
| | - Ting He
- National Engineering Research Center for Biomaterials/College of Biomedical Engineering, Sichuan University, Chengdu 610064, China.
| | - Qunjie Bi
- National Engineering Research Center for Biomaterials/College of Biomedical Engineering, Sichuan University, Chengdu 610064, China.
| | - Huan Yang
- National Engineering Research Center for Biomaterials/College of Biomedical Engineering, Sichuan University, Chengdu 610064, China.
| | - Xueyi Hu
- National Engineering Research Center for Biomaterials/College of Biomedical Engineering, Sichuan University, Chengdu 610064, China.
| | - Rongrong Jin
- National Engineering Research Center for Biomaterials/College of Biomedical Engineering, Sichuan University, Chengdu 610064, China.
| | - Hong Liang
- Department of Pharmacy, Sichuan Academy of Medical Sciences & Sichuan Provincial People's Hospital, School of Medicine, University of Electronic Science and Technology of China, Chengdu 610072, China. .,Personalized Drug Therapy Key Laboratory of Sichuan Province, School of Medicine, University of Electronic Science and Technology of China, Chengdu 610072, China
| | - Yongqun Zhu
- Life Sciences Institute and Innovation Center for Cell Signaling Network, Zhejiang University, Hangzhou 310058, China
| | - Rongsheng Tong
- Department of Pharmacy, Sichuan Academy of Medical Sciences & Sichuan Provincial People's Hospital, School of Medicine, University of Electronic Science and Technology of China, Chengdu 610072, China. .,Personalized Drug Therapy Key Laboratory of Sichuan Province, School of Medicine, University of Electronic Science and Technology of China, Chengdu 610072, China
| | - Yu Nie
- National Engineering Research Center for Biomaterials/College of Biomedical Engineering, Sichuan University, Chengdu 610064, China.
| |
Collapse
|
|
2
|
Tassler S, Pawlowska D, Janich C, Dobner B, Wölk C, Brezesinski G. Lysine-based amino-functionalized lipids for gene transfection: the influence of the chain composition on 2D properties. Phys Chem Chem Phys 2018; 20:6936-6944. [PMID: 29464262 DOI: 10.1039/c8cp00047f] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
The influence of the chain composition on the physical-chemical properties will be discussed for five transfection lipids containing the same lysine-based head group. For this purpose, the chain composition will be gradually varied from saturated tetradecyl (C14:0) and hexadecyl (C16:0) chains to longer but unsaturated oleyl (C18:1) chains with double bonds in the cis configuration. In this work, we investigated the lipids as Langmuir monolayers at the air-water-interface in the absence and presence of calf thymus DNA applying different techniques such as infrared reflection absorption spectroscopy (IRRAS) and grazing incidence X-ray diffraction (GIXD). The replacement of saturated tetradecyl (C14:0) and hexadecyl (C16:0) chains by unsaturated oleyl (C18:1) chains increases the fluidity of the lipid monolayer: TH10 < TT10 < OH10 < OT10 < OO10 resulting in a smaller packing density. TH10 forms the stiffest and OO10 the most fluid monolayer in this structure-property study. OO10 has a higher protonation degree compared to the saturated lipids TT10 and TH10 as well as to the hybrids OT10 and OH10 because of a better accessibility of the amine groups. Depending on the bulk pH, different scenarios of DNA coupling to the lipid monolayers have been proposed.
Collapse
Affiliation(s)
- Stephanie Tassler
- Max Planck Institute of Colloids and Interfaces, Science Park Potsdam-Golm, Am Mühlenberg 1, 14476 Potsdam, Germany.
| | | | | | | | | | | |
Collapse
|
|
3
|
Sun HY, Wu FG, Li ZH, Deng G, Zhou Y, Yu ZW. Phase behavior of a binary lipid system containing long- and short-chain phosphatidylcholines. RSC Adv 2017. [DOI: 10.1039/c6ra24961b] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023] Open
Abstract
A new phase state, named the U phase, was observed in DPPC–diC8PC mixtures at low DPPC contents.
Collapse
Affiliation(s)
- Hai-Yuan Sun
- Key Laboratory of Bioorganic Phosphorous Chemistry and Chemical Biology (Ministry of Education)
- Department of Chemistry
- Tsinghua University
- Beijing 100084
- P. R. China
| | - Fu-Gen Wu
- State Key Laboratory of Bioelectronics
- School of Biological Science and Medical Engineering
- Southeast University
- Nanjing 210096
- P. R. China
| | - Zhi-Hong Li
- Beijing Synchrotron Radiation Facility
- Institute of High Energy Physics
- Chinese Academy of Sciences
- Beijing 100049
- P. R. China
| | - Geng Deng
- Key Laboratory of Bioorganic Phosphorous Chemistry and Chemical Biology (Ministry of Education)
- Department of Chemistry
- Tsinghua University
- Beijing 100084
- P. R. China
| | - Yu Zhou
- Key Laboratory of Bioorganic Phosphorous Chemistry and Chemical Biology (Ministry of Education)
- Department of Chemistry
- Tsinghua University
- Beijing 100084
- P. R. China
| | - Zhi-Wu Yu
- Key Laboratory of Bioorganic Phosphorous Chemistry and Chemical Biology (Ministry of Education)
- Department of Chemistry
- Tsinghua University
- Beijing 100084
- P. R. China
| |
Collapse
|