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Grilli F, Hassan EM, Variola F, Zou S. Harnessing graphene oxide nanocarriers for siRNA delivery in a 3D spheroid model of lung cancer. Biomater Sci 2023; 11:6635-6649. [PMID: 37609774 DOI: 10.1039/d3bm00732d] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/24/2023]
Abstract
Gene therapy has been recently proposed as an effective strategy for cancer treatment. A significant body of literature proved the effectiveness of nanocarriers to deliver therapeutic agents to 2D tumour models, which are simple but not always representative of the in vivo reality. In this study, we analyze the efficiency of 3D spheroids combined with a minimally modified graphene oxide (GO)-based nanocarrier for siRNA delivery as a new system for cell transfection. Small interfering RNA (siRNA) targeting cluster of differentiation 47 (CD47; CD47_siRNA) was used as an anti-tumour therapeutic agent to silence the genes expressing CD47. This is a surface marker able to send a "don't eat me" signal to macrophages to prevent their phagocytosis. Also, we report the analysis of different GO formulations, in terms of size (small: about 100 nm; large: >650 nm) and functionalization (unmodified or modified with polyethylene glycol (PEG) and the dendrimer PAMAM), aiming to establish the efficiency of unmodified GO as a nanocarrier for the transfection of A549 lung cancer spheroids. Small modified GO (smGO) showed the highest transfection efficiency values (>90%) in 3D models. Interestingly, small unmodified GO (sGO) was found to be promising for transfection, with efficiency values >80% using a higher siRNA ratio (i.e., 3 : 1). These results demonstrated the higher efficiency of spheroids compared to 2D models for transfection, and the high potential of unmodified GO to carry siRNA, providing a promising new in vitro model system for the analysis of anticancer gene therapies.
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Affiliation(s)
- Francesca Grilli
- Metrology Research Centre, National Research Council of Canada, 100 Sussex Drive, Ottawa, ON K1A 0R6, Canada.
- Department of Mechanical Engineering, University of Ottawa, 800 King Edward Avenue, Ottawa, ON K1N 6N5, Canada
| | - Eman M Hassan
- Metrology Research Centre, National Research Council of Canada, 100 Sussex Drive, Ottawa, ON K1A 0R6, Canada.
| | - Fabio Variola
- Department of Mechanical Engineering, University of Ottawa, 800 King Edward Avenue, Ottawa, ON K1N 6N5, Canada
| | - Shan Zou
- Metrology Research Centre, National Research Council of Canada, 100 Sussex Drive, Ottawa, ON K1A 0R6, Canada.
- Department of Chemistry, Carleton University, 1125 Colonel By Drive, Ottawa, ON K1S 5B6, Canada
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Hassan EM, Zou S. Novel nanocarriers for silencing anti-phagocytosis CD47 marker in acute myeloid leukemia cells. Colloids Surf B Biointerfaces 2022; 217:112609. [PMID: 35667200 DOI: 10.1016/j.colsurfb.2022.112609] [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: 01/08/2022] [Revised: 05/02/2022] [Accepted: 05/28/2022] [Indexed: 12/19/2022]
Abstract
Acute myeloid leukemia (AML), a malignant disorder of Hematopoietic stem cells, can escape immunosurveillance by over expression of the cluster of differentiation 47 (CD47) marker, which functions as an inhibitory signal, suppressing phagocytosis by binding to signal regulatory protein α (SIRPα) on macrophages. AML is treated mainly by chemotherapy, which has drastic side effects and poor outcomes for the patients. Most AML patients develop drug resistance, so other methods to treat AML are highly required. Small interfering RNA (siRNA) is considered as an antitumor therapeutic due to its ability to silence genes associated with the overexpressed cancer markers and subsequently re-sensitize cancer cells. However, delivering siRNA into cells faces challenges, and the development of an effective delivery system is desired for successful silencing at the gene level. Herein, we report the usage of different formulations of graphene oxide (GO) as carriers for the delivery of CD47_siRNA (siRNA against CD47) into AML cells in vitro. The polyethylene glycol (PEG) and dendrimers (PAMAM) modified GO with small flake sizes achieved the highest silencing efficiency of the anti-phagocytosis marker CD47 gene, resulted CD47 protein down-regulation in AML cells. Moreover, the concentration at which the GO-based formulations was used has shown no cytotoxicity in AML cells or normal blood cells, which could be used to screen potential drugs for targeted gene therapy in AML.
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Affiliation(s)
- Eman M Hassan
- Metrology Research Centre, National Research Council of Canada, Ottawa K1A 0R6, Canada
| | - Shan Zou
- Metrology Research Centre, National Research Council of Canada, Ottawa K1A 0R6, Canada; Department of Chemistry, Carleton University, 1125 Colonel By Drive, Ottawa, ON K1S 5B6, Canada.
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Zhou L, Li R, Zhang R, Peng R, Chen K, Gao P, Zhang J, Zhang R, Li J. Utilizing CRISPR/Cas9 technology to prepare lymphoblastoid cell lines harboring genetic mutations for generating quality control materials in genetic testing. J Clin Lab Anal 2020; 34:e23256. [PMID: 32118319 PMCID: PMC7370731 DOI: 10.1002/jcla.23256] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2019] [Revised: 02/01/2020] [Accepted: 02/04/2020] [Indexed: 01/08/2023] Open
Abstract
BACKGROUND To meet the requirements of the rapidly progressing genetic testing technologies in clinical laboratories, assuring the quality of genetic tests by utilizing appropriate quality control materials is of paramount importance. The CRISPR/Cas9 technology was used to prepare quality control materials because genome-edited human cell lines are one of the major resources for quality control materials. METHODS In this study, in vitro transcribed sgRNA were transfected into a Cas9-expressing lymphoblastoid cell line (LCL)-by electroporation-to simulate the SEA-type deletion observed in α-thalassemia. The edited positive cell line was screened and identified by polymerase chain reaction (PCR) followed by Sanger sequencing. The whole-genome sequencing was also performed to show evidence of predicted mutation. RESULTS The results showed that electroporation of the in vitro transcribed gRNAs into stable Cas9-expressing LCL was a more efficient gene-editing technique as compared to plasmid-mediated transfection, and that the positive rates could reach up to 35.9%. The predominance of indel sizes relative to the predicted deletion length was clustered between 10 and 0 bp. The results of whole-genome sequencing also demonstrated the existence of SEA-type deletion of α-thalassemia. CONCLUSIONS Gene-editing based on Cas9-expressing LCL by electroporation of sgRNA was a more efficient approach to introduce mutations for generating quality control materials for genetic testing. The edited lymphoblastoid cell lines were feasible to serve as quality control materials in genetic testing.
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Affiliation(s)
- Li Zhou
- National Center for Clinical LaboratoriesBeijing HospitalNational Center of GerontologyBeijingChina
- Graduate SchoolPeking Union Medical CollegeChinese Academy of Medical SciencesBeijingChina
- Beijing Engineering Research Center of Laboratory MedicineBeijing HospitalBeijingChina
| | - Rui Li
- National Center for Clinical LaboratoriesBeijing HospitalNational Center of GerontologyBeijingChina
- Graduate SchoolPeking Union Medical CollegeChinese Academy of Medical SciencesBeijingChina
- Beijing Engineering Research Center of Laboratory MedicineBeijing HospitalBeijingChina
| | - Runling Zhang
- National Center for Clinical LaboratoriesBeijing HospitalNational Center of GerontologyBeijingChina
- Graduate SchoolPeking Union Medical CollegeChinese Academy of Medical SciencesBeijingChina
- Beijing Engineering Research Center of Laboratory MedicineBeijing HospitalBeijingChina
| | - Rongxue Peng
- National Center for Clinical LaboratoriesBeijing HospitalNational Center of GerontologyBeijingChina
- Graduate SchoolPeking Union Medical CollegeChinese Academy of Medical SciencesBeijingChina
- Beijing Engineering Research Center of Laboratory MedicineBeijing HospitalBeijingChina
| | - Kun Chen
- National Center for Clinical LaboratoriesBeijing HospitalNational Center of GerontologyBeijingChina
- Graduate SchoolPeking Union Medical CollegeChinese Academy of Medical SciencesBeijingChina
- Beijing Engineering Research Center of Laboratory MedicineBeijing HospitalBeijingChina
| | - Peng Gao
- National Center for Clinical LaboratoriesBeijing HospitalNational Center of GerontologyBeijingChina
- Graduate SchoolPeking Union Medical CollegeChinese Academy of Medical SciencesBeijingChina
- Beijing Engineering Research Center of Laboratory MedicineBeijing HospitalBeijingChina
| | - Jiawei Zhang
- National Center for Clinical LaboratoriesBeijing HospitalNational Center of GerontologyBeijingChina
- Graduate SchoolPeking Union Medical CollegeChinese Academy of Medical SciencesBeijingChina
- Beijing Engineering Research Center of Laboratory MedicineBeijing HospitalBeijingChina
| | - Rui Zhang
- National Center for Clinical LaboratoriesBeijing HospitalNational Center of GerontologyBeijingChina
- Beijing Engineering Research Center of Laboratory MedicineBeijing HospitalBeijingChina
| | - Jinming Li
- National Center for Clinical LaboratoriesBeijing HospitalNational Center of GerontologyBeijingChina
- Graduate SchoolPeking Union Medical CollegeChinese Academy of Medical SciencesBeijingChina
- Beijing Engineering Research Center of Laboratory MedicineBeijing HospitalBeijingChina
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4
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Ju A, Lee SW, Lee YE, Han KC, Kim JC, Shin SC, Park HJ, EunKyeong Kim E, Hong S, Jang M. A carrier-free multiplexed gene editing system applicable for suspension cells. Biomaterials 2019; 217:119298. [PMID: 31280073 DOI: 10.1016/j.biomaterials.2019.119298] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2019] [Accepted: 06/22/2019] [Indexed: 12/26/2022]
Abstract
Genetically engineered cells via CRISPR/Cas9 system can serve as powerful sources for cancer immunotherapeutic applications. Furthermore, multiple genetic alterations are necessary to overcome tumor-induced immune-suppressive mechanisms. However, one of the major obstacles is the technical difficulty with efficient multiple gene manipulation of suspension cells due to the low transfection efficacy. Herein, we established a carrier-free multiplexed gene editing platform in a simplified method, which can enhance the function of cytotoxic CD8+ T cells by modulating suspension cancer cells. Our multiple Cas9 ribonucleoproteins (RNPs) enable simultaneous disruption of two programmed cell death 1 (PD-1) ligands, functioning as negative regulators in the immune system, by accessing engineered Cas9 proteins with abilities of complexation and cellular penetration. In addition, combination with electroporation enhanced multiple gene editing efficacy, compared with that by treatment of multiple Cas9 RNPs alone. This procedure resulted in high gene editing at multiple loci of suspension cells. The treatment of multiple Cas9 RNPs targeting both ligands strongly improved Th1-type cytokine production of cytotoxic CD8+ T cells, resulting in synergistic cytotoxic effects against cancer. Simultaneous suppression of PD-L1 and PD-L2 on cancer cells via our developed editing system allows effective anti-tumor immunity. Furthermore, the treatment of multiple Cas9 RNPs targeting PD-L1, PD-L2, and TIM-3 had approximately 70-90% deletion efficacy. Thus, our multiplexed gene editing strategy endows potential clinical utilities in cancer immunotherapy.
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Affiliation(s)
- Anna Ju
- Center for Theragnosis, Biomedical Research Institute, Korea Institute of Science and Technology (KIST), Seoul, 02792, Republic of Korea
| | - Sung Won Lee
- Department of Integrative Bioscience and Biotechnology, Institute of Anticancer Medicine Development, Sejong University, Seoul, 05006, Republic of Korea
| | - Young Eun Lee
- Center for Theragnosis, Biomedical Research Institute, Korea Institute of Science and Technology (KIST), Seoul, 02792, Republic of Korea; Department of Life Sciences, College of Life Sciences and Biotechnology, Korea University, Seoul, 136-701, Republic of Korea
| | - Ki-Cheol Han
- Center for Theragnosis, Biomedical Research Institute, Korea Institute of Science and Technology (KIST), Seoul, 02792, Republic of Korea
| | - Jin-Chul Kim
- Natural Constituents of Research Center, Natural Products Research Institute, Korea Institute of Science and Technology (KIST), Gangneung, Republic of Korea
| | - Sang Chul Shin
- Center for Theragnosis, Biomedical Research Institute, Korea Institute of Science and Technology (KIST), Seoul, 02792, Republic of Korea
| | - Hyun Jung Park
- Department of Integrative Bioscience and Biotechnology, Institute of Anticancer Medicine Development, Sejong University, Seoul, 05006, Republic of Korea
| | - Eunice EunKyeong Kim
- Center for Theragnosis, Biomedical Research Institute, Korea Institute of Science and Technology (KIST), Seoul, 02792, Republic of Korea
| | - Seokmann Hong
- Department of Integrative Bioscience and Biotechnology, Institute of Anticancer Medicine Development, Sejong University, Seoul, 05006, Republic of Korea.
| | - Mihue Jang
- Center for Theragnosis, Biomedical Research Institute, Korea Institute of Science and Technology (KIST), Seoul, 02792, Republic of Korea.
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Zhi D, Bai Y, Yang J, Cui S, Zhao Y, Chen H, Zhang S. A review on cationic lipids with different linkers for gene delivery. Adv Colloid Interface Sci 2018; 253:117-140. [PMID: 29454463 DOI: 10.1016/j.cis.2017.12.006] [Citation(s) in RCA: 82] [Impact Index Per Article: 13.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2017] [Revised: 12/19/2017] [Accepted: 12/19/2017] [Indexed: 01/05/2023]
Abstract
Cationic lipids have become known as one of the most versatile tools for the delivery of DNA, RNA and many other therapeutic molecules, and are especially attractive because they can be easily designed, synthesized and characterized. Most of cationic lipids share the common structure of cationic head groups and hydrophobic portions with linker bonds between both domains. The linker bond is an important determinant of the chemical stability and biodegradability of cationic lipid, and further governs its transfection efficiency and cytotoxicity. Based on the structures of linker bonds, they can be grouped into many types, such as ether, ester, amide, carbamate, disulfide, urea, acylhydrazone, phosphate, and other unusual types (carnitine, vinyl ether, ketal, glutamic acid, aspartic acid, malonic acid diamide and dihydroxybenzene). This review summarizes some research results concerning the nature (such as the structure and orientation of linker groups) and density (such as the spacing and the number of linker groups) of linker bond for improving the chemical stability, biodegradability, transfection efficiency and cytotoxicity of cationic lipid to overcome the critical barriers of in vitro and in vivo transfection.
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6
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Guler Gokce Z, Zuhal Birol S, Eren T, Ercelen Ceylan S. Biophysical characterization of quaternary pyridinium functionalized polynorbornenes for DNA complexation and their cellular interactions. Biopolymers 2017; 107. [DOI: 10.1002/bip.23005] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2016] [Revised: 11/18/2016] [Accepted: 11/20/2016] [Indexed: 11/10/2022]
Affiliation(s)
- Zeliha Guler Gokce
- TUBITAK Marmara Research Center Genetic Engineering and Biotechnology Institute; Gebze 21 Kocaeli 41470 Turkey
| | - Semra Zuhal Birol
- TUBITAK Marmara Research Center Genetic Engineering and Biotechnology Institute; Gebze 21 Kocaeli 41470 Turkey
| | - Tarık Eren
- TUBITAK Marmara Research Center, Chemistry Institute; Gebze 21 Kocaeli 41470 Turkey
- Chemistry Department; Yildiz Technical University; Davutpasa Istanbul 34210 Turkey
| | - Sebnem Ercelen Ceylan
- TUBITAK Marmara Research Center Genetic Engineering and Biotechnology Institute; Gebze 21 Kocaeli 41470 Turkey
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Berchel M, Haddad J, Le Corre SS, Haelters JP, Jaffrès PA. Synthesis of lipid-based unsymmetrical O,O-dialkylphosphites. Tetrahedron Lett 2015. [DOI: 10.1016/j.tetlet.2015.03.093] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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8
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High-efficiency transfection of suspension cell lines. Biotechniques 2012; 53:000113914. [PMID: 26307260 DOI: 10.2144/000113914] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2012] [Accepted: 07/26/2012] [Indexed: 11/23/2022] Open
Abstract
Transfection of suspension cells has proven to be very difficult using conventional methods. Here, we present a simple and time-saving new transfection protocol wherein cell culture plates coated with chicken egg white are seeded with suspension cells prior to transfection. Our results demonstrate that coupling egg white coatings with commercially available transfection reagents leads to high transfection efficiency with suspension cell lines including canine mastocytoma C2 and the human myeloid cell line HL-60. This new approach, which should prove applicable to a wide range of cell lines, solves a crucial problem for researchers working with suspension cells.
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9
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Jaffrès PA, Fraix A, Lorilleux C, Berchel M, Couthon-Gourvès H, Haelters JP, Yaouanc JJ, Burel L, Giamarchi P, Midoux P, Montier T, Lehn P. New Lipo-Phosphoramidates for Gene Delivery. PHOSPHORUS SULFUR 2011. [DOI: 10.1080/10426507.2010.522639] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Affiliation(s)
- Paul-Alain Jaffrès
- a CEMCA, UMR CNRS 6521, Faculté des Sciences et Techniques , Université de Bretagne Occidentale , Brest , France
| | - Aurore Fraix
- a CEMCA, UMR CNRS 6521, Faculté des Sciences et Techniques , Université de Bretagne Occidentale , Brest , France
| | - Christophe Lorilleux
- a CEMCA, UMR CNRS 6521, Faculté des Sciences et Techniques , Université de Bretagne Occidentale , Brest , France
| | - Mathieu Berchel
- a CEMCA, UMR CNRS 6521, Faculté des Sciences et Techniques , Université de Bretagne Occidentale , Brest , France
| | - Hélène Couthon-Gourvès
- a CEMCA, UMR CNRS 6521, Faculté des Sciences et Techniques , Université de Bretagne Occidentale , Brest , France
| | - Jean-Pierre Haelters
- a CEMCA, UMR CNRS 6521, Faculté des Sciences et Techniques , Université de Bretagne Occidentale , Brest , France
| | - Jean-Jacques Yaouanc
- a CEMCA, UMR CNRS 6521, Faculté des Sciences et Techniques , Université de Bretagne Occidentale , Brest , France
| | - Laure Burel
- a CEMCA, UMR CNRS 6521, Faculté des Sciences et Techniques , Université de Bretagne Occidentale , Brest , France
| | - Philippe Giamarchi
- a CEMCA, UMR CNRS 6521, Faculté des Sciences et Techniques , Université de Bretagne Occidentale , Brest , France
| | - Patrick Midoux
- b Centre de Biophysique Moléculaire, CNRS UPR 4301 , Orléans , France
| | - Tristan Montier
- c Unité INSERM 613, Institut de Synergie des Sciences et de la Santé , Université de Bretagne Occidentale , Brest , France
| | - Pierre Lehn
- c Unité INSERM 613, Institut de Synergie des Sciences et de la Santé , Université de Bretagne Occidentale , Brest , France
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10
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Le Gall T, Loizeau D, Picquet E, Carmoy N, Yaouanc JJ, Burel-Deschamps L, Delépine P, Giamarchi P, Jaffrès PA, Lehn P, Montier T. A Novel Cationic Lipophosphoramide with Diunsaturated Lipid Chains: Synthesis, Physicochemical Properties, and Transfection Activities. J Med Chem 2010; 53:1496-508. [DOI: 10.1021/jm900897a] [Citation(s) in RCA: 65] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Affiliation(s)
| | - Damien Loizeau
- Laboratoire CEMCA, CNRS UMR 6521, IFR 148 ScInBIoS; Université de Bretagne Occidentale, 6 Avenue Le Gorgeu, 29238 Brest, France
| | - Erwan Picquet
- Laboratoire CEMCA, CNRS UMR 6521, IFR 148 ScInBIoS; Université de Bretagne Occidentale, 6 Avenue Le Gorgeu, 29238 Brest, France
| | | | - Jean-Jacques Yaouanc
- IBiSA SynNanoVect platform
- Laboratoire CEMCA, CNRS UMR 6521, IFR 148 ScInBIoS; Université de Bretagne Occidentale, 6 Avenue Le Gorgeu, 29238 Brest, France
| | - Laure Burel-Deschamps
- Laboratoire CEMCA, CNRS UMR 6521, IFR 148 ScInBIoS; Université de Bretagne Occidentale, 6 Avenue Le Gorgeu, 29238 Brest, France
| | | | - Philippe Giamarchi
- Laboratoire CEMCA, CNRS UMR 6521, IFR 148 ScInBIoS; Université de Bretagne Occidentale, 6 Avenue Le Gorgeu, 29238 Brest, France
| | - Paul-Alain Jaffrès
- IBiSA SynNanoVect platform
- Laboratoire CEMCA, CNRS UMR 6521, IFR 148 ScInBIoS; Université de Bretagne Occidentale, 6 Avenue Le Gorgeu, 29238 Brest, France
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Maslov MA, Morosova NG, Senan IM, Serebrennikova GA. Synthesis of cationic lipid transfection agents with O,O- or N,O-acetal linkages. RUSSIAN JOURNAL OF BIOORGANIC CHEMISTRY 2009; 35:696-700. [DOI: 10.1134/s1068162009050148] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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12
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Martino S, di Girolamo I, Tiribuzi R, D'Angelo F, Datti A, Orlacchio A. Efficient siRNA delivery by the cationic liposome DOTAP in human hematopoietic stem cells differentiating into dendritic cells. J Biomed Biotechnol 2009; 2009:410260. [PMID: 19503805 PMCID: PMC2688684 DOI: 10.1155/2009/410260] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2008] [Accepted: 03/20/2009] [Indexed: 01/12/2023] Open
Abstract
RNA interference technology is an ideal strategy to elucidate the mechanisms associated with human CD34(+) hematopoietic stem cell differentiation into dendritic cells. Simple manipulations in vitro can unequivocally yield alloreactive or tolerogenic populations, suggesting key implications of biochemical players that might emerge as therapeutic targets for cancer or graft-versus-host disease. To knockdown proteins typically involved in the biology of dendritic cells, we employed an siRNA delivery system based on the cationic liposome DOTAP as the carrier. Freshly-isolated CD34(+) cells were transfected with siRNA for cathepsin S with negligible cytotoxicity and transfection rates (>60%) comparable to the efficiency shown by lentiviral vectors. Further, cathepsin S knockdown was performed during both cell commitment and through the entire 14-day differentiation process with repeated transfection rounds that had no effect per se on cell development. Tested in parallel, other commercially-available chemical reagents failed to meet acceptable standards. In addition to safe and practical handling, a direct advantage of DOTAP over viral-mediated techniques is that transient silencing effects can be dynamically appraised through the recovery of targeted proteins. Thus, our findings identify DOTAP as an excellent reagent for gene silencing in resting and differentiating CD34(+) cells, suggesting a potential for applications in related preclinical models.
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Affiliation(s)
- Sabata Martino
- Dipartimento di Medicina Sperimentale e Scienze Biochimiche, Sezione di Biochimica e Biologia Molecolare, Università di Perugia, Via del Giochetto, 06100 Perugia, Italy
| | - Ilaria di Girolamo
- Dipartimento di Medicina Sperimentale e Scienze Biochimiche, Sezione di Biochimica e Biologia Molecolare, Università di Perugia, Via del Giochetto, 06100 Perugia, Italy
| | - Roberto Tiribuzi
- Dipartimento di Medicina Sperimentale e Scienze Biochimiche, Sezione di Biochimica e Biologia Molecolare, Università di Perugia, Via del Giochetto, 06100 Perugia, Italy
| | - Francesco D'Angelo
- Dipartimento di Medicina Sperimentale e Scienze Biochimiche, Sezione di Biochimica e Biologia Molecolare, Università di Perugia, Via del Giochetto, 06100 Perugia, Italy
| | - Alessandro Datti
- Dipartimento di Medicina Sperimentale e Scienze Biochimiche, Sezione di Biochimica e Biologia Molecolare, Università di Perugia, Via del Giochetto, 06100 Perugia, Italy
| | - Aldo Orlacchio
- Dipartimento di Medicina Sperimentale e Scienze Biochimiche, Sezione di Biochimica e Biologia Molecolare, Università di Perugia, Via del Giochetto, 06100 Perugia, Italy
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13
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Le Gallo M, Toutirais O, Montier T, Cabillic F, Bouet F, Delépine P, Lehn P, Jotereau F, Catros V. Activation of tumor-specific T cells by dendritic cells expressing the NY-ESO-1 antigen after transfection with the cationic lipophosphoramide KLN5. J Gene Med 2008; 10:628-36. [PMID: 18338820 DOI: 10.1002/jgm.1188] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Genetic modification of human monocyte-derived dendritic cells (DC) with cDNA sequences encoding tumor-associated antigens (TAA) is a promising strategy for cancer immunotherapy. The present study aimed to develop a nonviral gene transfer method based on the use of the cationic lipophosphoramide reagent, KLN-5, as an alternative to the commonly used viral vectors. METHODS First, the efficiency of KLN5 for gene transfection into DC was investigated using the green fluorescent protein (GFP) reporter gene. The highest transfection efficiency/cell viability ratio was determined by flow cytometry. Next, DC were transfected with a plasmid encoding NY-ESO-1, a TAA expressed in numerous cancers, according to the transfection protocol previously established with the GFP reporter. Transfected DC were then co-cultured with a CD8+ NY-ESO-1 specific HLA-A*02.01 T cell clone to control their ability to correctly process and present the corresponding epitope in the HLA-A*02.01 context. Finally, T cell activation was assessed via flow cytometry-based detection of interferon-gamma production. RESULTS An optimal KLN5/plasmid DNA ratio allowing both significant transgene expression and high viability of DC could be determined. Under the established experimental conditions, antigen processing and presentation of the immunodominant (SLLMWITQC(157-165)) epitope in the HLA-A*0201 context was demonstrated by activation of the NY-ESO-1-specific CD8+ T cell clone. CONCLUSIONS KLN5-based gene transfection into DC allows the efficient induction of TAA presentation and may thus represent a novel attractive nonviral approach for cancer vaccination.
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Affiliation(s)
- Matthieu Le Gallo
- Université de Rennes 1, Faculté de Médecine, UPRES 3891, Rennes, France
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14
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Burel-Deschamps L, Mével M, Loizeau D, Ayadi F, Yaouanc JJ, Clément JC, Jaffrès PA, Giamarchi P. Fluorescence Study of Lipid-based DNA Carriers Properties: Influence of Cationic Lipid Chemical Structure. J Fluoresc 2008; 18:835-41. [DOI: 10.1007/s10895-008-0312-7] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2007] [Accepted: 01/02/2008] [Indexed: 11/29/2022]
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15
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Mével M, Yaouanc JJ, Laurent P, Clément JC, Cartier D, Jaffrès PA, Montier T, Delépine P, Le Gall T, Lehn P, Pichon C, Midoux P, Férec C. Cationic Lipids Based on Phosphonate and Phosphoramidate Chemistry: Synthesis and Application to Gene Therapy. PHOSPHORUS SULFUR 2008. [DOI: 10.1080/10426500701761300] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Affiliation(s)
- Mathieu Mével
- a CEMCA, UMR CNRS 6521, Faculté des Sciences et Techniques , Université de Bretagne Occidentale , Brest, France
| | - Jean-Jacques Yaouanc
- a CEMCA, UMR CNRS 6521, Faculté des Sciences et Techniques , Université de Bretagne Occidentale , Brest, France
| | - Pascale Laurent
- a CEMCA, UMR CNRS 6521, Faculté des Sciences et Techniques , Université de Bretagne Occidentale , Brest, France
| | - Jean-Claude Clément
- a CEMCA, UMR CNRS 6521, Faculté des Sciences et Techniques , Université de Bretagne Occidentale , Brest, France
| | - Dominique Cartier
- a CEMCA, UMR CNRS 6521, Faculté des Sciences et Techniques , Université de Bretagne Occidentale , Brest, France
| | - Paul-Alain Jaffrès
- a CEMCA, UMR CNRS 6521, Faculté des Sciences et Techniques , Université de Bretagne Occidentale , Brest, France
| | - Tristan Montier
- b Unité INSERM 613 “Génétique Moléculaire et Epidémiologie Génétique”, Institut de Synergie des Sciences et de la Santé, Faculté de médecine et des sciences de la santé , Université de Bretagne Occidentale , Brest, France
| | - Pascal Delépine
- b Unité INSERM 613 “Génétique Moléculaire et Epidémiologie Génétique”, Institut de Synergie des Sciences et de la Santé, Faculté de médecine et des sciences de la santé , Université de Bretagne Occidentale , Brest, France
| | - Tony Le Gall
- b Unité INSERM 613 “Génétique Moléculaire et Epidémiologie Génétique”, Institut de Synergie des Sciences et de la Santé, Faculté de médecine et des sciences de la santé , Université de Bretagne Occidentale , Brest, France
| | - Pierre Lehn
- b Unité INSERM 613 “Génétique Moléculaire et Epidémiologie Génétique”, Institut de Synergie des Sciences et de la Santé, Faculté de médecine et des sciences de la santé , Université de Bretagne Occidentale , Brest, France
| | | | | | - Claude Férec
- c Centre de Biophysique Moléculaire , Orléans, France
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16
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Mével M, Lamarche F, Clément JC, Yaouanc JJ, Laurent P, Burel L, Giamarchi P, Montier T, Delépine P, Lehn P, Jaffrès PA, Férec C. New Phosphoramidate Dicationic Vectors for Gene Therapy. PHOSPHORUS SULFUR 2008. [DOI: 10.1080/10426500701807764] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Affiliation(s)
- Mathieu Mével
- a CEMCA, UMR CNRS 6521, Faculté des Sciences et Techniques , Université de Bretagne Occidentale , France
| | - François Lamarche
- a CEMCA, UMR CNRS 6521, Faculté des Sciences et Techniques , Université de Bretagne Occidentale , France
| | - Jean-claude Clément
- a CEMCA, UMR CNRS 6521, Faculté des Sciences et Techniques , Université de Bretagne Occidentale , France
| | - Jean-jacques Yaouanc
- a CEMCA, UMR CNRS 6521, Faculté des Sciences et Techniques , Université de Bretagne Occidentale , France
| | - Pascale Laurent
- a CEMCA, UMR CNRS 6521, Faculté des Sciences et Techniques , Université de Bretagne Occidentale , France
| | - Laure Burel
- a CEMCA, UMR CNRS 6521, Faculté des Sciences et Techniques , Université de Bretagne Occidentale , France
| | - Philippe Giamarchi
- a CEMCA, UMR CNRS 6521, Faculté des Sciences et Techniques , Université de Bretagne Occidentale , France
| | - Tristan Montier
- a CEMCA, UMR CNRS 6521, Faculté des Sciences et Techniques , Université de Bretagne Occidentale , France
| | - Pascal Delépine
- a CEMCA, UMR CNRS 6521, Faculté des Sciences et Techniques , Université de Bretagne Occidentale , France
| | - Pierre Lehn
- a CEMCA, UMR CNRS 6521, Faculté des Sciences et Techniques , Université de Bretagne Occidentale , France
| | - Paul-Alain Jaffrès
- a CEMCA, UMR CNRS 6521, Faculté des Sciences et Techniques , Université de Bretagne Occidentale , France
| | - Claude Férec
- a CEMCA, UMR CNRS 6521, Faculté des Sciences et Techniques , Université de Bretagne Occidentale , France
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17
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Mével M, Lamarche F, Clément JC, Laurent P, Yaouanc JJ, Burel L, Giamarchi P, Montier T, Delépine P, Lehn P, Jaffrès PA, Férec C. New Polyamines Phosphoramidate Vectors for Gene Therapy. PHOSPHORUS SULFUR 2008. [DOI: 10.1080/10426500701793303] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Affiliation(s)
- Mathieu Mével
- a CEMCA, UMR CNRS 6521, Faculté des Sciences et Techniques , Université de Bretagne Occidentale , Brest, France
| | - François Lamarche
- a CEMCA, UMR CNRS 6521, Faculté des Sciences et Techniques , Université de Bretagne Occidentale , Brest, France
| | - Jean-claude Clément
- a CEMCA, UMR CNRS 6521, Faculté des Sciences et Techniques , Université de Bretagne Occidentale , Brest, France
| | - Pascale Laurent
- a CEMCA, UMR CNRS 6521, Faculté des Sciences et Techniques , Université de Bretagne Occidentale , Brest, France
| | - Jean-jacques Yaouanc
- a CEMCA, UMR CNRS 6521, Faculté des Sciences et Techniques , Université de Bretagne Occidentale , Brest, France
| | - Laure Burel
- a CEMCA, UMR CNRS 6521, Faculté des Sciences et Techniques , Université de Bretagne Occidentale , Brest, France
| | - Philippe Giamarchi
- a CEMCA, UMR CNRS 6521, Faculté des Sciences et Techniques , Université de Bretagne Occidentale , Brest, France
| | - Tristan Montier
- b Unité INSERM 613, Institut de Synergie des Sciences et de la Santé , Université de Bretagne Occidentale , Brest cedex 2, France
| | - Pascal Delépine
- b Unité INSERM 613, Institut de Synergie des Sciences et de la Santé , Université de Bretagne Occidentale , Brest cedex 2, France
| | - Pierre Lehn
- b Unité INSERM 613, Institut de Synergie des Sciences et de la Santé , Université de Bretagne Occidentale , Brest cedex 2, France
| | - Paul-Alain Jaffrès
- a CEMCA, UMR CNRS 6521, Faculté des Sciences et Techniques , Université de Bretagne Occidentale , Brest, France
| | - Claude Férec
- b Unité INSERM 613, Institut de Synergie des Sciences et de la Santé , Université de Bretagne Occidentale , Brest cedex 2, France
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