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Ghanem R, Berchel M, Haute T, Buin X, Laurent V, Youf R, Bouraoui A, Le Gall T, Jaffrès PA, Montier T. Gene transfection using branched cationic amphiphilic compounds for an aerosol administration in cystic fibrosis context. Int J Pharm 2023; 631:122491. [PMID: 36529361 DOI: 10.1016/j.ijpharm.2022.122491] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2022] [Revised: 11/29/2022] [Accepted: 12/10/2022] [Indexed: 12/23/2022]
Abstract
For cystic fibrosis gene therapy, the aerosolization of genetic materials is the most relevant delivery strategy to reach the airway epithelium. However, aerosolized formulations have to resist shear forces while maintaining the integrity of plasmid DNA (pDNA) during its journey from the nebulization to the epithelial cells. Herein, we compared the efficiency of gene delivery by aerosolization of two types of formulations: (i) BSV163, a branched cationic amphiphilic compound, co-formulated with different DOPE ratios (mol/mol) and DMPE-PEG5000 and (ii) 25 KDa branched polyethylenimine (b-PEI)-based formulation used as control. This study also aims to determine whether BSV163-based formulations possess the ability to resist the nebulization mechanisms and protect the nucleic acids (pDNA) cargo. Therefore, two CpG free plasmids (pGM144 or pGM169) encoding either the luciferase reporter gene or hCFTR respectively were used. Air-Liquid Interface (ALI) cell-culture was selected as an in-vitro model for aerosol experiments due to its closer analogy with in vivo morphology. Results highlighted that DOPE ratio influences the capacity of the BSV163 based-formulations to mediate high transfection efficacies. Furthermore, we proved that addition of DMPE-PEG5000 upon the formation of the BSV163/DOPE (1/1) lipid film instead of post-insertion led to a higher transgene expression. The aerosolization of this formulation on ALI cell-culture was more efficient than the use of b-PEI-based formulation.
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Affiliation(s)
- Rosy Ghanem
- Univ Brest, INSERM, EFS, UMR 1078, GGB, F-29200 Brest, France
| | - Mathieu Berchel
- Univ Brest, CNRS, CEMCA UMR 65216, Avenue Victor, Le Gorgeu, F-29238 Brest, France
| | - Tanguy Haute
- Univ Brest, INSERM, EFS, UMR 1078, GGB, F-29200 Brest, France
| | - Xavier Buin
- Univ Brest, INSERM, EFS, UMR 1078, GGB, F-29200 Brest, France
| | | | - Raphaëlle Youf
- Univ Brest, INSERM, EFS, UMR 1078, GGB, F-29200 Brest, France
| | - Amal Bouraoui
- Univ Brest, CNRS, CEMCA UMR 65216, Avenue Victor, Le Gorgeu, F-29238 Brest, France
| | - Tony Le Gall
- Univ Brest, INSERM, EFS, UMR 1078, GGB, F-29200 Brest, France
| | - Paul-Alain Jaffrès
- Univ Brest, CNRS, CEMCA UMR 65216, Avenue Victor, Le Gorgeu, F-29238 Brest, France
| | - Tristan Montier
- Univ Brest, INSERM, EFS, UMR 1078, GGB, F-29200 Brest, France; CHRU de Brest, Service de Génétique Médicale et de Biologie de la Reproduction, Centre de Référence des Maladies Rares Maladies Neuromusculaires, 29200 Brest, France.
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Poli M, Ruiz-Olvera P, Nalca A, Ruiz S, Livingston V, Frick O, Dyer D, Schellhase C, Raymond J, Kulis D, Anderson D, McGrath S, Deeds J. Toxicity and pathophysiology of palytoxin congeners after intraperitoneal and aerosol administration in rats. Toxicon 2018; 150:235-250. [PMID: 29902540 DOI: 10.1016/j.toxicon.2018.06.067] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2018] [Revised: 06/04/2018] [Accepted: 06/08/2018] [Indexed: 11/26/2022]
Abstract
Preparations of palytoxin (PLTX, derived from Japanese Palythoa tuberculosa) and the congeners 42-OH-PLTX (from Hawaiian P. toxica) and ovatoxin-a (isolated from a Japanese strain of Ostreopsis ovata), as well as a 50:50 mixture of PLTX and 42-OH-PLTX derived from Hawaiian P. tuberculosa were characterized as to their concentration, composition, in-vitro potency and interaction with an anti-PLTX monoclonal antibody (mAb), after which they were evaluated for lethality and tissue histopathology after intraperitoneal (IP) and aerosol administration to rats. Once each preparation was characterized as to its toxin composition by LC-HRMS and normalized to a total PLTX/OVTX concentration using HPLC-UV, all four preparations showed similar potency towards mouse erythrocytes in the erythrocyte hemolysis assay and interactions with the anti-PLTX mAb. The IP LD50 values derived from these experiments (0.92, 1.93, 1.81 and 3.26 μg/kg, for the 50:50 mix, 42-OH-PLTX, PLTX, and ovatoxin-a, respectively) were consistent with published values, although some differences from the published literature were seen. The aerosol LD50 values (0.063, 0.045, 0.041, and 0.031 μg/kg for the 50:50 mix, 42-OH PLTX, PLTX, and ovatoxin-a, respectively) confirmed the exquisite potency of PLTX suggested by the literature. The tissue histopathology of the different toxin preparations by IP and aerosol administration were similar, albeit with some differences. Most commonly affected tissues were the lungs, liver, heart, salivary glands, and adrenal glands. Despite some differences, these results suggest commonalities in potency and mechanism of action among these PLTX congeners.
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Affiliation(s)
- Mark Poli
- Diagnostic Systems Division, US Army Medical Research Institute of Infectious Diseases, Fort Detrick, MD, United States.
| | - Patricia Ruiz-Olvera
- Diagnostic Systems Division, US Army Medical Research Institute of Infectious Diseases, Fort Detrick, MD, United States
| | - Aysegul Nalca
- Aerobiology Division, US Army Medical Research Institute of Infectious Diseases, Fort Detrick, MD, United States
| | - Sara Ruiz
- Aerobiology Division, US Army Medical Research Institute of Infectious Diseases, Fort Detrick, MD, United States
| | - Virginia Livingston
- Aerobiology Division, US Army Medical Research Institute of Infectious Diseases, Fort Detrick, MD, United States
| | - Ondraya Frick
- Aerobiology Division, US Army Medical Research Institute of Infectious Diseases, Fort Detrick, MD, United States
| | - David Dyer
- Aerobiology Division, US Army Medical Research Institute of Infectious Diseases, Fort Detrick, MD, United States
| | - Christopher Schellhase
- Pathology Division, US Army Medical Research Institute of Infectious Diseases, Fort Detrick, MD, United States
| | - Jolynne Raymond
- Pathology Division, US Army Medical Research Institute of Infectious Diseases, Fort Detrick, MD, United States
| | - David Kulis
- Biology Department, Woods Hole Oceanographic Institution, Woods Hole, MA, United States
| | - Donald Anderson
- Biology Department, Woods Hole Oceanographic Institution, Woods Hole, MA, United States
| | - Sara McGrath
- Center for Food Safety and Applied Nutrition, US Food and Drug Administration, College Park, MD, United States
| | - Jonathan Deeds
- Center for Food Safety and Applied Nutrition, US Food and Drug Administration, College Park, MD, United States
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