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Liu L, Gao H, Guo C, Liu T, Li N, Qian Q. Therapeutic Mechanism of Nucleic Acid Drugs. ChemistrySelect 2021. [DOI: 10.1002/slct.202002901] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Affiliation(s)
- Lianxiao Liu
- Nucleic Acid Drug Division Shanghai Cell Therapy Group Co., Ltd. 75 A Qianyang Rd, Jiading District Shanghai 201805 China
| | - Haixia Gao
- Nucleic Acid Drug Division Shanghai Cell Therapy Group Co., Ltd. 75 A Qianyang Rd, Jiading District Shanghai 201805 China
| | - Chuanxin Guo
- Nucleic Acid Drug Division Shanghai Cell Therapy Group Co., Ltd. 75 A Qianyang Rd, Jiading District Shanghai 201805 China
| | - Tao Liu
- Nucleic Acid Drug Division Shanghai Cell Therapy Group Co., Ltd. 75 A Qianyang Rd, Jiading District Shanghai 201805 China
| | - Ning Li
- Nucleic Acid Drug Division Shanghai Cell Therapy Group Co., Ltd. 75 A Qianyang Rd, Jiading District Shanghai 201805 China
| | - Qijun Qian
- Nucleic Acid Drug Division Shanghai Cell Therapy Group Co., Ltd. 75 A Qianyang Rd, Jiading District Shanghai 201805 China
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2
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Esprit A, de Mey W, Bahadur Shahi R, Thielemans K, Franceschini L, Breckpot K. Neo-Antigen mRNA Vaccines. Vaccines (Basel) 2020; 8:E776. [PMID: 33353155 PMCID: PMC7766040 DOI: 10.3390/vaccines8040776] [Citation(s) in RCA: 37] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2020] [Revised: 12/14/2020] [Accepted: 12/16/2020] [Indexed: 12/12/2022] Open
Abstract
The interest in therapeutic cancer vaccines has caught enormous attention in recent years due to several breakthroughs in cancer research, among which the finding that successful checkpoint blockade treatments reinvigorate neo-antigen-specific T cells and that successful adoptive cell therapies are directed towards neo-antigens. Neo-antigens are cancer-specific antigens, which develop from somatic mutations in the cancer cell genome that can be highly immunogenic and are not subjected to central tolerance. As the majority of neo-antigens are unique to each patient's cancer, a vaccine technology that is flexible and potent is required to develop personalized neo-antigen vaccines. In vitro transcribed mRNA is such a technology platform and has been evaluated for delivery of neo-antigens to professional antigen-presenting cells both ex vivo and in vivo. In addition, strategies that support the activity of T cells in the tumor microenvironment have been developed. These represent a unique opportunity to ensure durable T cell activity upon vaccination. Here, we comprehensively review recent progress in mRNA-based neo-antigen vaccines, summarizing critical milestones that made it possible to bring the promise of therapeutic cancer vaccines within reach.
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Affiliation(s)
| | | | | | | | | | - Karine Breckpot
- Laboratory for Molecular and Cellular Therapy (LMCT), Department of Biomedical Sciences, Vrije Universiteit Brussel, B-1090 Brussels, Belgium; (A.E.); (W.d.M.); (R.B.S.); (K.T.); (L.F.)
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3
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Udhayakumar VK, De Beuckelaer A, McCaffrey J, McCrudden CM, Kirschman JL, Vanover D, Van Hoecke L, Roose K, Deswarte K, De Geest BG, Lienenklaus S, Santangelo PJ, Grooten J, McCarthy HO, De Koker S. Arginine-Rich Peptide-Based mRNA Nanocomplexes Efficiently Instigate Cytotoxic T Cell Immunity Dependent on the Amphipathic Organization of the Peptide. Adv Healthc Mater 2017; 6. [PMID: 28436620 DOI: 10.1002/adhm.201601412] [Citation(s) in RCA: 114] [Impact Index Per Article: 16.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2016] [Revised: 03/02/2017] [Indexed: 12/31/2022]
Abstract
To date, the mRNA delivery field has been heavily dominated by lipid-based systems. Reports on the use of nonlipid carriers for mRNA delivery in contrast are rare in the context of mRNA vaccination. This paper describes the potential of a cell-penetrating peptide containing the amphipathic RALA motif to deliver antigen-encoding mRNA to the immune system. RALA condenses mRNA into nanocomplexes that display acidic pH-dependent membrane disruptive properties. RALA mRNA nanocomplexes enable mRNA escape from endosomes and thereby allow expression of mRNA inside the dendritic cell cytosol. Strikingly, RALA mRNA nanocomplexes containing pseudouridine and 5-methylcytidine modified mRNA elicit potent cytolytic T cell responses against the antigenic mRNA cargo and show superior efficacy in doing so when compared to RALA mRNA nanocomplexes containing unmodified mRNA. RALA's unique sequence and structural organization are vital to act as mRNA vaccine vehicle, as arginine-rich peptide variants that lack the RALA motif show reduced mRNA complexation, impaired cellular uptake and lose the ability to transfect dendritic cells in vitro and to evoke T cell immunity in vivo.
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Affiliation(s)
| | - Ans De Beuckelaer
- Department of Biomedical Molecular Biology Ghent University 9052 Ghent Belgium
| | - Joanne McCaffrey
- School of Pharmacy Queen's University Belfast BT7 1NN Belfast Northern Ireland
| | - Cian M. McCrudden
- School of Pharmacy Queen's University Belfast BT7 1NN Belfast Northern Ireland
| | - Jonathan L. Kirschman
- Wallace H. Coulter Department of Biomedical Engineering at Georgia Tech and Emory University Georgia Institute of Technology GA 30332 Atlanta USA
| | - Daryll Vanover
- Wallace H. Coulter Department of Biomedical Engineering at Georgia Tech and Emory University Georgia Institute of Technology GA 30332 Atlanta USA
| | - Lien Van Hoecke
- Department of Biomedical Molecular Biology Ghent University 9052 Ghent Belgium
- Medical Biotechnology Center VIB Ghent University 9052 Ghent Belgium
| | - Kenny Roose
- Department of Biomedical Molecular Biology Ghent University 9052 Ghent Belgium
- Medical Biotechnology Center VIB Ghent University 9052 Ghent Belgium
| | - Kim Deswarte
- Inflammation Research Center VIB Ghent University 9052 Ghent Belgium
- Department of Respiratory Medicine University Hospital Ghent 9052 Ghent Belgium
| | - Bruno G. De Geest
- Biopharmaceutical Technology Unit Ghent University 9052 Ghent Belgium
| | - Stefan Lienenklaus
- Department of Molecular Immunology Helmholtz Centre for Infection Research 38124 Braunschweig Germany
| | - Philip J. Santangelo
- Wallace H. Coulter Department of Biomedical Engineering at Georgia Tech and Emory University Georgia Institute of Technology GA 30332 Atlanta USA
| | - Johan Grooten
- Department of Biomedical Molecular Biology Ghent University 9052 Ghent Belgium
| | - Helen O. McCarthy
- School of Pharmacy Queen's University Belfast BT7 1NN Belfast Northern Ireland
| | - Stefaan De Koker
- Department of Biomedical Molecular Biology Ghent University 9052 Ghent Belgium
- Medical Biotechnology Center VIB Ghent University 9052 Ghent Belgium
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4
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Broos K, Van der Jeught K, Puttemans J, Goyvaerts C, Heirman C, Dewitte H, Verbeke R, Lentacker I, Thielemans K, Breckpot K. Particle-mediated Intravenous Delivery of Antigen mRNA Results in Strong Antigen-specific T-cell Responses Despite the Induction of Type I Interferon. MOLECULAR THERAPY-NUCLEIC ACIDS 2016; 5:e326. [PMID: 27327138 PMCID: PMC5022130 DOI: 10.1038/mtna.2016.38] [Citation(s) in RCA: 72] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/12/2016] [Accepted: 04/26/2016] [Indexed: 12/25/2022]
Abstract
Cancer vaccines based on mRNA are extensively studied. The fragile nature of mRNA has instigated research into carriers that can protect it from ribonucleases and as such enable its systemic use. However, carrier-mediated delivery of mRNA has been linked to production of type I interferon (IFN) that was reported to compromise the effectiveness of mRNA vaccines. In this study, we evaluated a cationic lipid for encapsulation of mRNA. The nanometer-sized, negatively charged lipid mRNA particles (LMPs) efficiently transfected dendritic cells and macrophages in vitro. Furthermore, i.v. delivery of LMPs resulted in rapid expression of the mRNA-encoded protein in spleen and liver, predominantly in CD11c(+) cells and to a minor extent in CD11b(+) cells. Intravenous immunization of mice with LMPs containing ovalbumin, human papilloma virus E7, and tyrosinase-related protein-2 mRNA, either combined or separately, elicited strong antigen-specific T-cell responses. We further showed the production of type I IFNs upon i.v. LMP delivery. Although this decreased the expression of the mRNA-encoded protein, it supported the induction of antigen-specific T-cell responses. These data question the current notion that type I IFNs hamper particle-mediated mRNA vaccines.
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Affiliation(s)
- Katrijn Broos
- Laboratory of Molecular and Cellular Therapy, Department of Biomedical Sciences, Vrije Universiteit Brussel, Brussels, Belgium
| | - Kevin Van der Jeught
- Laboratory of Molecular and Cellular Therapy, Department of Biomedical Sciences, Vrije Universiteit Brussel, Brussels, Belgium
| | - Janik Puttemans
- Laboratory of Molecular and Cellular Therapy, Department of Biomedical Sciences, Vrije Universiteit Brussel, Brussels, Belgium
| | - Cleo Goyvaerts
- Laboratory of Molecular and Cellular Therapy, Department of Biomedical Sciences, Vrije Universiteit Brussel, Brussels, Belgium
| | - Carlo Heirman
- Laboratory of Molecular and Cellular Therapy, Department of Biomedical Sciences, Vrije Universiteit Brussel, Brussels, Belgium
| | - Heleen Dewitte
- Laboratory for General Biochemistry and Physical Pharmacy, Faculty of Pharmacy, Ghent University, Ghent, Belgium
| | - Rein Verbeke
- Laboratory for General Biochemistry and Physical Pharmacy, Faculty of Pharmacy, Ghent University, Ghent, Belgium
| | - Ine Lentacker
- Laboratory for General Biochemistry and Physical Pharmacy, Faculty of Pharmacy, Ghent University, Ghent, Belgium
| | - Kris Thielemans
- Laboratory of Molecular and Cellular Therapy, Department of Biomedical Sciences, Vrije Universiteit Brussel, Brussels, Belgium
| | - Karine Breckpot
- Laboratory of Molecular and Cellular Therapy, Department of Biomedical Sciences, Vrije Universiteit Brussel, Brussels, Belgium
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A novel delivery platform based on Bacteriophage MS2 virus-like particles. Virus Res 2015; 211:9-16. [PMID: 26415756 PMCID: PMC7114531 DOI: 10.1016/j.virusres.2015.08.022] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2015] [Revised: 08/22/2015] [Accepted: 08/24/2015] [Indexed: 02/02/2023]
Abstract
Here we reviewed Bacteriophage MS2 virus-like particles, including introduction to their structure, their potential as a delivery platform, and their expected use in medicine and other fields. Bacteriophage MS2 virus-like particles represent the novel delivery platform. Bacteriophage MS2 virus-like particles possess promising application prospect.
Our objective here is to review the novel delivery platform based on Bacteriophage MS2 virus-like particles (VLPs), including introduction to their structure, their potential as a delivery platform, and their expected use in medicine and other fields. Bacteriophage MS2 VLPs are nanoparticles devoid of viral genetic material and can self-assemble from the coat protein into an icosahedral capsid. As a novel delivery platform, they possess numerous features that make them suitable and attractive for targeted delivery of RNAs or DNAs, epitope peptides, and drugs within the protein capsid. In short, as a novel delivery platform, MS2 VLPs are suitable for delivery of targeted agents and hold promise for use in diagnostics, vaccines, and therapeutic modalities.
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Abstract
Synthetic mRNAs can become biopharmaceutics allowing vaccination against cancer, bacterial and virus infections. Clinical trials with direct administration of synthetic mRNAs encoding tumor antigens demonstrated safety and induction of tumor-specific immune responses. Although immune responses are generated by naked mRNAs, their formulations with chemical carriers are expected to provide more specificity and internalization in dendritic cells (DCs) for better immune responses and dose reduction. This review reports lipid-based formulations (LBFs) that have proved preclinical efficacy. The selective delivery of mRNA LBFs to favor intracellular accumulation in DCs and reduction of the effective doses is discussed, notably to decorate LBFs with carbohydrates or glycomimetics allowing endocytosis in DCs. We also report how smart intracellular delivery is achieved using pH-sensitive lipids or polymers for an efficient mRNA escape from endosomes and limitations regarding cytosolic mRNA location for translation.
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Affiliation(s)
- Patrick Midoux
- Centre de Biophysique Moléculaire, CNRS UPR4301, Inserm and Université d'Orléans, Orléans, 45071, cedex 02, France
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7
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Dewitte H, Verbeke R, Breckpot K, Vandenbroucke RE, Libert C, De Smedt SC, Lentacker I. Choose your models wisely: How different murine bone marrow-derived dendritic cell protocols influence the success of nanoparticulate vaccines in vitro. J Control Release 2014; 195:138-46. [DOI: 10.1016/j.jconrel.2014.06.024] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2014] [Revised: 06/04/2014] [Accepted: 06/15/2014] [Indexed: 11/30/2022]
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8
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Van Lint S, Renmans D, Broos K, Dewitte H, Lentacker I, Heirman C, Breckpot K, Thielemans K. The ReNAissanCe of mRNA-based cancer therapy. Expert Rev Vaccines 2014; 14:235-51. [PMID: 25263094 DOI: 10.1586/14760584.2015.957685] [Citation(s) in RCA: 57] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
About 25 years ago, mRNA became a tool of interest in anticancer vaccination approaches. However, due to its rapid degradation in situ, direct application of mRNA was confronted with considerable skepticism during its early use. Consequently, mRNA was for a long time mainly used for the ex vivo transfection of dendritic cells, professional antigen-presenting cells known to stimulate immunity. The interest in direct application of mRNA experienced a revival, as researchers became aware of the many advantages mRNA offers. Today, mRNA is considered to be an ideal vehicle for the induction of strong immune responses against cancer. The growing numbers of preclinical trials and as a consequence the increasing clinical application of mRNA as an off-the-shelf anticancer vaccine signifies a renaissance for transcript-based antitumor therapy. In this review, we highlight this renaissance using a timeline providing all milestones in the application of mRNA for anticancer vaccination.
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Affiliation(s)
- Sandra Van Lint
- Laboratory of Molecular and Cellular Therapy, Department of Biomedical Sciences, Medical School of the Vrije Universiteit Brussel (VUB), Laarbeeklaan 103, B-1090 Jette, Belgium
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Abstract
RNA-based approaches have provided novel alternatives for modern drug discovery. The application of RNA as therapeutic agents has, until recently, been hampered by issues related to poor delivery and stability, but chemical modifications and new delivery approaches have increased progress. Moreover, the discovery of the importance of RNA in gene regulation and gene silencing has revealed new drug targets, especially related to treatment of cancer and other diseases. Recent engineering of small molecules designed from RNA sequences to target miRNAs opens up new possibilities in drug development. Furthermore, RNA-based vaccines have been engineered applying RNA virus vectors and non-viral delivery for vaccine development.
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Li J, Sun Y, Jia T, Zhang R, Zhang K, Wang L. Messenger RNA vaccine based on recombinant MS2 virus-like particles against prostate cancer. Int J Cancer 2013; 134:1683-94. [PMID: 24105486 DOI: 10.1002/ijc.28482] [Citation(s) in RCA: 51] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2013] [Accepted: 08/29/2013] [Indexed: 12/22/2022]
Abstract
Prostate cancer (PCa) is the most diagnosed cancer in the western male population with high mortality. Recently, alternative approaches based on immunotherapy including mRNA vaccines for PCa have shown therapeutic promise. However, for mRNA vaccine, several disadvantages such as the instability of mRNA, the high cost of gold particles, the limited production scale for mRNA-transfected dendritic cells in vitro, limit their development. Herein, recombinant bacteriophage MS2 virus-like particles (VLPs), which based on the interaction of a 19-nucleotide RNA aptamer and the coat protein of bacteriophage MS2, successfully addressed these questions, in which target mRNA was packaged by MS2 capsid. MS2 VLP-based mRNA vaccines were easily prepared by recombinant protein technology, nontoxic and RNase-resistant. We show the packaged mRNA was translated into protein as early as 12 hr after phagocytosed by macrophages. Moreover, MS2 VLP-based mRNA vaccines induced strong humoral and cellular immune responses, especially antigen-specific cytotoxic T-lymphocyte (CTL) and balanced Th1/Th2 responses without upregulation of CD4(+) regulatory T cells, and protected C57BL/6 mice against PCa completely. As a therapeutic vaccine, MS2 VLP-based mRNA vaccines delayed tumor growth. Our results provide proof of concept on the efficacy and safety of MS2 VLP-based mRNA vaccine, which provides a new delivery approach for mRNA vaccine and implies important clinical value for the prevention and therapy of PCa.
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Affiliation(s)
- Jinming Li
- National Center for Clinical Laboratory, Beijing Hospital of the Ministry of Health, Beijing, 100730, People's Republic of China
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11
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Garg NK, Dwivedi P, Prabha P, Tyagi RK. RNA pulsed dendritic cells: an approach for cancer immunotherapy. Vaccine 2013; 31:1141-56. [PMID: 23306369 DOI: 10.1016/j.vaccine.2012.12.027] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2012] [Revised: 11/30/2012] [Accepted: 12/07/2012] [Indexed: 02/07/2023]
Abstract
The immunotherapy of cancer is aimed at evoking both branches of immune system to elicite specific immune responses directed against tumor antigens to deal with residual tumor cells upon interaction, and thereby decreases mortality as well as morbidity of cancer patients. As dendritic cells (DCs) are specialized for antigen presentation, and their immunogenicity leads to the induction of antigen specific immune responses, various immunotherapeutic approaches have been designed for using DCs to present tumor-associated antigens to T-lymphocytes. As a part of proposed strategy ex vivo generated DCs might be loaded with antigens and re-infused to the patients and/or they can be used for the ex vivo expansion of anti-tumor lymphocytes. The DCs loaded ex vivo with RNA can be safely administered which proves to be an asset for producing antigen specific immune responses. Furthermore, already conducted studies have prompted clinical trials to be designed to investigate immunological and clinical effects of RNA pulsed DCs administered as an engineered therapeutic vaccine in cancer patients. However, selection of the antigens of interest, methods for introducing TAAgs into MHC class I and II processing pathways, methods for isolation and activation of DCs, and route of administration are the parameters to be considered for designing and conducting clinical trials with engineered DCs. The enhanced RNA transfection efficiency would further improve antigen processing and presentation and T-cell co-stimulation, resulting in the induction of heightened anti-tumor immune responses. Therefore, RNA transfected dendritic cells continue to hold promise for cellular immunotherapy and opens new avenues to devising further strategies for cancer therapeutic interventions.
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Affiliation(s)
- Neeraj Kumar Garg
- Drug Delivery Research Group, University Institute of Pharmaceutical Sciences, Panjab University, Chandigarh-160 014, Chandigarh, India
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Van Lint S, Heirman C, Thielemans K, Breckpot K. mRNA: From a chemical blueprint for protein production to an off-the-shelf therapeutic. Hum Vaccin Immunother 2013; 9:265-74. [PMID: 23291946 PMCID: PMC3859745 DOI: 10.4161/hv.22661] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023] Open
Abstract
Two decades ago, mRNA became the focus of research in molecular medicine and was proposed as an active pharmaceutical ingredient for the therapy of cancer. In this regard, mRNA has been mainly used for ex vivo modification of antigen-presenting cells (APCs), such as dendritic cells (DCs). This vaccination strategy has proven to be safe, well tolerated and capable of inducing tumor antigen-specific immune responses. Recently, the direct application of mRNA for in situ modification of APCs, hence immunization was shown to be feasible and at least as effective as DC-based immunization in pre-clinical models. It is believed that application of mRNA as an off-the-shelf vaccine represents an important step in the development of future cancer immunotherapeutic strategies. Here, we will discuss the use of ex vivo mRNA-modified DCs and “naked mRNA” for cancer immunotherapy focusing on parameters such as the employed DC subtype, DC activation stimulus and route of immunization. In addition, we will provide an overview on the clinical trials published so far, trying to link their outcome to the aforementioned parameters.
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Affiliation(s)
- Sandra Van Lint
- Laboratory of Molecular and Cellular Therapy; Department of Immunology-Physiology; Medical School of the "Vrije Universiteit Brussel"; Jette, Belgium
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Van Lint S, Goyvaerts C, Maenhout S, Goethals L, Disy A, Benteyn D, Pen J, Bonehill A, Heirman C, Breckpot K, Thielemans K. Preclinical evaluation of TriMix and antigen mRNA-based antitumor therapy. Cancer Res 2012; 72:1661-71. [PMID: 22337996 DOI: 10.1158/0008-5472.can-11-2957] [Citation(s) in RCA: 148] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
The use of tumor-associated antigen (TAA) mRNA for therapeutic purposes is under active investigation. To be effective, mRNA vaccines need to deliver activation stimuli in addition to TAAs to dendritic cells (DC). In this study, we evaluated whether intranodal delivery of TAA mRNA together with TriMix, a mix of mRNA encoding CD40 ligand, constitutive active Toll-like receptor 4 and CD70, results in the in situ modification and maturation of DCs, hence, priming of TAA-specific T cells. We showed selective uptake and translation of mRNA in vivo by lymph node resident CD11c(+) cells. This process was hampered by codelivery of classical maturation stimuli but not by TriMix mRNA. Importantly, TriMix mRNA induced a T-cell-attracting and stimulatory environment, including recruitment of antigen-specific CD4(+) and CD8(+) T cells and CTLs against various TAAs. In several mouse tumor models, mRNA vaccination was as efficient in CTL induction and therapy response as vaccination with mRNA-electroporated DCs. Together, our findings suggest that intranodal administration of TAA mRNA together with mRNA encoding immunomodulating molecules is a promising vaccination strategy.
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Affiliation(s)
- Sandra Van Lint
- Laboratory of Molecular and Cellular Therapy, Department of Immunology-Physiology, Vrije Universiteit Brussel, Jette, Belgium
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