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Wu S, Liu M, Hu X, He C, Zhao C, Xiang S, Zeng Y. Evaluation of pentaerythritol-based and trimethylolpropane-based cationic lipidic materials for gene delivery. Bioorg Med Chem Lett 2022; 62:128635. [PMID: 35202809 DOI: 10.1016/j.bmcl.2022.128635] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2021] [Revised: 02/13/2022] [Accepted: 02/17/2022] [Indexed: 11/25/2022]
Abstract
The chemical and physical structure of cationic liposomes pays an important effect on their gene transfection efficiency. Investigation on the structure-function relationship of cationic liposomes will guide the design of novel cationic liposomes with high transfection efficiency and biosafety. In this paper, two novel series of lipids based on the backbone of pentaerythritol and trimethylolpropane were discovered, and their gene transfection efficiencies were assayed in vitro. The four lipids 8c, 9c, 14b, and 15b, exhibited much better transfection efficiency in the HEK293 cell lines compared with Lipo2000, lipid 9c also showed good transfection efficiency in the SW480 cell lines. And the structure-efficiency relationship revealed that a hydroxyethyl polar head group boosted transfer potency in trimethylolpropane-type lipids, but reduced in pentaerythritol-type lipids.
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Affiliation(s)
- Shuang Wu
- Laboratory of Chemical Biology and Traditional Chinese Medicine Research (Ministry of Education of China), Hunan Normal University, Changsha 410081, PR China; Key Laboratory of the Assembly and Application of Organic Functional Molecules of Hunan Province, Hunan Normal University, Changsha 410081, PR China
| | - Meiyan Liu
- Laboratory of Chemical Biology and Traditional Chinese Medicine Research (Ministry of Education of China), Hunan Normal University, Changsha 410081, PR China; Key Laboratory of the Assembly and Application of Organic Functional Molecules of Hunan Province, Hunan Normal University, Changsha 410081, PR China
| | - Xiang Hu
- Key Laboratory of Protein Chemistry and Developmental Biology of State Education Ministry of China, College of Life Sciences, Hunan Normal University, Changsha, Hunan 410081, PR China
| | - Chengxi He
- Laboratory of Chemical Biology and Traditional Chinese Medicine Research (Ministry of Education of China), Hunan Normal University, Changsha 410081, PR China; Key Laboratory of the Assembly and Application of Organic Functional Molecules of Hunan Province, Hunan Normal University, Changsha 410081, PR China
| | - Chunyan Zhao
- Laboratory of Chemical Biology and Traditional Chinese Medicine Research (Ministry of Education of China), Hunan Normal University, Changsha 410081, PR China
| | - Shuanglin Xiang
- Key Laboratory of Protein Chemistry and Developmental Biology of State Education Ministry of China, College of Life Sciences, Hunan Normal University, Changsha, Hunan 410081, PR China
| | - Youlin Zeng
- Laboratory of Chemical Biology and Traditional Chinese Medicine Research (Ministry of Education of China), Hunan Normal University, Changsha 410081, PR China; Key Laboratory of the Assembly and Application of Organic Functional Molecules of Hunan Province, Hunan Normal University, Changsha 410081, PR China.
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Wu Y, Xiong Y, Wang L, Zhou Q, Li L, Levkin PA, Davidson G, Gao L, Deng W. Development of new self-assembled cationic amino liposomes for efficient gene delivery. Biomater Sci 2020; 8:3021-3025. [PMID: 32322846 DOI: 10.1039/d0bm00331j] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
A library of 83 structurally diverse cationic amino liposomes is rationally designed and parallelly synthesized for the transfection of plasmid DNA and siRNA. Our designed self-assembled liposomes not only exhibit excellent transfection efficiency in HEK 293T cells and mouse embryonic stem cells, but also show low cytotoxicity.
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Affiliation(s)
- Yihang Wu
- School of Pharmaceutical Sciences (Shenzhen), Sun Yat-sen University, Shenzhen 518107, P.R. China.
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de Groot AM, Thanki K, Gangloff M, Falkenberg E, Zeng X, van Bijnen DCJ, van Eden W, Franzyk H, Nielsen HM, Broere F, Gay NJ, Foged C, Sijts AJAM. Immunogenicity Testing of Lipidoids In Vitro and In Silico: Modulating Lipidoid-Mediated TLR4 Activation by Nanoparticle Design. MOLECULAR THERAPY. NUCLEIC ACIDS 2018; 11:159-169. [PMID: 29858051 PMCID: PMC5992342 DOI: 10.1016/j.omtn.2018.02.003] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/14/2017] [Revised: 02/06/2018] [Accepted: 02/06/2018] [Indexed: 11/28/2022]
Abstract
Therapeutics based on small interfering RNA (siRNA) have promising potential as antiviral and anti-inflammatory agents. To deliver siRNA across cell membranes to reach the RNAi pathway in the cytosol of target cells, non-viral nanoparticulate delivery approaches are explored. Recently, we showed that encapsulation of siRNA in lipid-polymer hybrid nanoparticles (LPNs), based on poly(DL-lactic-co-glycolic acid) (PLGA) and cationic lipid-like materials (lipidoids), remarkably enhances intracellular delivery of siRNA as compared to siRNA delivery with LPNs modified with dioleoyltrimethylammoniumpropane (DOTAP) as the lipid component. However, the potential immune modulation by these cationic lipids remains unexplored. By testing lipidoids and DOTAP for innate immune-receptor-activating properties in vitro, we found that neither lipidoids nor DOTAP activate human Toll-like receptor (TLR) 2, 3, 7, and 9. However, in contrast to DOTAP, lipidoids are strong agonists for TLR4 and activate murine antigen-presenting cells in vitro. This agonistic effect was further confirmed in silico using a prediction model based on crystal structures. Also, lipidoids formulated as lipoplexes or as stable nucleic acid lipid particles, which was the reference formulation for siRNA delivery, proved to activate TLR4. However, by combining lipidoids with PLGA into LPNs, TLR4 activation was abrogated. Thus, lipidoid-mediated TLR4 activation during siRNA delivery may be modulated via optimization of the formulation design.
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Affiliation(s)
- Anne Marit de Groot
- Department of Infectious Diseases and Immunology, Utrecht University, Utrecht, the Netherlands
| | - Kaushik Thanki
- Department of Pharmacy, Faculty of Health and Medical Sciences, University of Copenhagen, 2100 Copenhagen, Denmark
| | - Monique Gangloff
- Department of Biochemistry, University of Cambridge, Cambridge, UK
| | - Emily Falkenberg
- Department of Pharmacy, Faculty of Health and Medical Sciences, University of Copenhagen, 2100 Copenhagen, Denmark
| | - Xianghui Zeng
- Department of Pharmacy, Faculty of Health and Medical Sciences, University of Copenhagen, 2100 Copenhagen, Denmark
| | - Djai C J van Bijnen
- Department of Infectious Diseases and Immunology, Utrecht University, Utrecht, the Netherlands
| | - Willem van Eden
- Department of Infectious Diseases and Immunology, Utrecht University, Utrecht, the Netherlands
| | - Henrik Franzyk
- Department of Drug Design and Pharmacology, Faculty of Health and Medical Sciences, University of Copenhagen, 2100 Copenhagen, Denmark
| | - Hanne M Nielsen
- Department of Pharmacy, Faculty of Health and Medical Sciences, University of Copenhagen, 2100 Copenhagen, Denmark
| | - Femke Broere
- Department of Infectious Diseases and Immunology, Utrecht University, Utrecht, the Netherlands
| | - Nick J Gay
- Department of Biochemistry, University of Cambridge, Cambridge, UK
| | - Camilla Foged
- Department of Pharmacy, Faculty of Health and Medical Sciences, University of Copenhagen, 2100 Copenhagen, Denmark.
| | - Alice J A M Sijts
- Department of Infectious Diseases and Immunology, Utrecht University, Utrecht, the Netherlands.
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