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Mével M, Haudebourg T, Colombani T, Peuziat P, Dallet L, Chatin B, Lambert O, Berchel M, Montier T, Jaffrès PA, Lehn P, Pitard B. Important role of phosphoramido linkage in imidazole-based dioleyl helper lipids for liposome stability and primary cell transfection. J Gene Med 2016; 18:3-15. [PMID: 26519353 DOI: 10.1002/jgm.2869] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2015] [Revised: 10/28/2015] [Accepted: 10/29/2015] [Indexed: 01/30/2023] Open
Abstract
BACKGROUND To optimize synthetic gene delivery systems, there is a need to develop more efficient lipid formulations. Most cationic lipid formulations contain 'helper' neutral lipids because of their ability to increase DNA delivery, in particular by improving endosomal escape of DNA molecules via the pH-buffering effect of protonatable groups and/or fusion with the lipid bilayer of endosomes. METHODS We evaluated the influence of the linker structure between the two oleyl chains in the helper lipid on transfection efficiency in cell lines, as well as in primary cells (hepatocytes/cardiomyocytes). We reported the synthesis of two new pH-buffering imidazole helper lipids characterized by a polar headgroup containing one (compound 6) or two (compound 5) imidazole groups and two oleyl chains linked by an amide group. We studied their association with the aminoglycoside lipidic derivative dioleylsuccinylparomomycin (DOSP), which contains two oleyl chains linked to the aminoglycoside polar headgroup via an amide function. We compared the morphology and transfection properties of such binary liposomes of DOSP/5 and DOSP/6 with those of liposomes combining DOSP with another imidazole-based dioleyl helper lipid (MM27) in which a phosphoramido group acts as a linker between the two oleyl chains and imidazole function. RESULTS The phosphoramido linker in the helper lipid induces a major difference in terms of morphology and resistance to decomplexation at physical pH for DOSP/helper lipid complexes. CONCLUSIONS This hybrid dioleyl linker composition of DOSP/MM27 led to higher transfection efficiency in cell lines and in primary cells compared to complexes with homogeneous dioleyl linker.
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Affiliation(s)
- Mathieu Mével
- Unité INSERM UMR 1087, CNRS UMR 6291, Nantes, France
- Université de Nantes, l'institut du thorax, Nantes, France
| | - Thomas Haudebourg
- Unité INSERM UMR 1087, CNRS UMR 6291, Nantes, France
- Université de Nantes, l'institut du thorax, Nantes, France
| | - Thibault Colombani
- Unité INSERM UMR 1087, CNRS UMR 6291, Nantes, France
- Université de Nantes, l'institut du thorax, Nantes, France
| | - Pauline Peuziat
- Unité INSERM UMR 1087, CNRS UMR 6291, Nantes, France
- Université de Nantes, l'institut du thorax, Nantes, France
| | - Laurence Dallet
- Unité INSERM UMR 1087, CNRS UMR 6291, Nantes, France
- Université de Nantes, l'institut du thorax, Nantes, France
- CBMN UMR-CNRS 5248 IECB, Université de Bordeaux 1-IPB, Pessac, France
| | - Benoît Chatin
- Unité INSERM UMR 1087, CNRS UMR 6291, Nantes, France
- Université de Nantes, l'institut du thorax, Nantes, France
| | - Olivier Lambert
- CBMN UMR-CNRS 5248 IECB, Université de Bordeaux 1-IPB, Pessac, France
| | - Mathieu Berchel
- UMR CNRS 6521, IFR 148 ScInBioS, Université de Bretagne Occidentale, Université Européenne de Bretagne, Brest, France
| | - Tristan Montier
- Unité INSERM 1078, IFR 148 ScInBioS, Université de Bretagne Occidentale, Université Européenne de Bretagne, Brest Cedex, France
- Service de Génétique Moléculaire et d'histocompatibilité, CHUR, Brest, France
| | - Paul-Alain Jaffrès
- UMR CNRS 6521, IFR 148 ScInBioS, Université de Bretagne Occidentale, Université Européenne de Bretagne, Brest, France
| | - Pierre Lehn
- Unité INSERM 1078, IFR 148 ScInBioS, Université de Bretagne Occidentale, Université Européenne de Bretagne, Brest Cedex, France
| | - Bruno Pitard
- Unité INSERM UMR 1087, CNRS UMR 6291, Nantes, France
- Université de Nantes, l'institut du thorax, Nantes, France
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Habrant D, Peuziat P, Colombani T, Dallet L, Gehin J, Goudeau E, Evrard B, Lambert O, Haudebourg T, Pitard B. Design of Ionizable Lipids To Overcome the Limiting Step of Endosomal Escape: Application in the Intracellular Delivery of mRNA, DNA, and siRNA. J Med Chem 2016; 59:3046-62. [PMID: 26943260 DOI: 10.1021/acs.jmedchem.5b01679] [Citation(s) in RCA: 56] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
The intracellular delivery of nucleic acid molecules is a complex process involving several distinct steps; among these the endosomal escape appeared to be of particular importance for an efficient protein production (or inhibition) into host cells. In the present study, a new series of ionizable vectors, derived from naturally occurring aminoglycoside tobramycin, was prepared using improved synthetic procedures that allow structural variations on the linker and hydrophobic domain levels. Complexes formed between the new ionizable lipids and mRNA, DNA, or siRNA were characterized by cryo-TEM experiments and their transfection potency was evaluated using different cell types. We demonstrated that lead molecule 30, bearing a biodegradable diester linker, formed small complexes with nucleic acids and provided very high transfection efficiency with all nucleic acids and cell types tested. The obtained results suggested that the improved and "universal" delivery properties of 30 resulted from an optimized endosomal escape, through the lipid-mixing mechanism.
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Affiliation(s)
- Damien Habrant
- In-Cell-Art , 21 rue de la Noue Bras de Fer, 44200 Nantes, France
| | - Pauline Peuziat
- Unité INSERM UMR1087, CNRS UMR 6291 , 8 quai Moncousu, 44007 Nantes, France.,Université de Nantes , L'institut du Thorax, 8 quai Moncousu, 44007 Nantes, France
| | - Thibault Colombani
- Unité INSERM UMR1087, CNRS UMR 6291 , 8 quai Moncousu, 44007 Nantes, France.,Université de Nantes , L'institut du Thorax, 8 quai Moncousu, 44007 Nantes, France
| | - Laurence Dallet
- CBMN UMR-CNRS 5248 IECB, Université de Bordeaux 1-IPB , Allée Geoffroy Saint Hilaire, Pessac F-33600, France
| | - Johan Gehin
- In-Cell-Art , 21 rue de la Noue Bras de Fer, 44200 Nantes, France
| | - Emilie Goudeau
- In-Cell-Art , 21 rue de la Noue Bras de Fer, 44200 Nantes, France
| | - Bérangère Evrard
- In-Cell-Art , 21 rue de la Noue Bras de Fer, 44200 Nantes, France
| | - Olivier Lambert
- CBMN UMR-CNRS 5248 IECB, Université de Bordeaux 1-IPB , Allée Geoffroy Saint Hilaire, Pessac F-33600, France
| | - Thomas Haudebourg
- Unité INSERM UMR1087, CNRS UMR 6291 , 8 quai Moncousu, 44007 Nantes, France.,Université de Nantes , L'institut du Thorax, 8 quai Moncousu, 44007 Nantes, France
| | - Bruno Pitard
- In-Cell-Art , 21 rue de la Noue Bras de Fer, 44200 Nantes, France.,Unité INSERM UMR1087, CNRS UMR 6291 , 8 quai Moncousu, 44007 Nantes, France.,Université de Nantes , L'institut du Thorax, 8 quai Moncousu, 44007 Nantes, France
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Richard-Fiardo P, Hervouet C, Marsault R, Franken PR, Cambien B, Guglielmi J, Warnez-Soulie J, Darcourt J, Pourcher T, Colombani T, Haudebourg T, Peuziat P, Pitard B, Vassaux G. Evaluation of tetrafunctional block copolymers as synthetic vectors for lung gene transfer. Biomaterials 2015; 45:10-7. [DOI: 10.1016/j.biomaterials.2014.12.051] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2014] [Revised: 12/12/2014] [Accepted: 12/20/2014] [Indexed: 12/16/2022]
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