1
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Torella L, Klermund J, Bilbao-Arribas M, Tamayo I, Andrieux G, Chmielewski KO, Vales A, Olagüe C, Moreno-Luqui D, Raimondi I, Abad A, Torrens-Baile J, Salido E, Huarte M, Hernaez M, Boerries M, Cathomen T, Zabaleta N, Gonzalez-Aseguinolaza G. Efficient and safe therapeutic use of paired Cas9-nickases for primary hyperoxaluria type 1. EMBO Mol Med 2024; 16:112-131. [PMID: 38182795 PMCID: PMC10897483 DOI: 10.1038/s44321-023-00008-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2023] [Revised: 11/14/2023] [Accepted: 11/15/2023] [Indexed: 01/07/2024] Open
Abstract
The therapeutic use of adeno-associated viral vector (AAV)-mediated gene disruption using CRISPR-Cas9 is limited by potential off-target modifications and the risk of uncontrolled integration of vector genomes into CRISPR-mediated double-strand breaks. To address these concerns, we explored the use of AAV-delivered paired Staphylococcus aureus nickases (D10ASaCas9) to target the Hao1 gene for the treatment of primary hyperoxaluria type 1 (PH1). Our study demonstrated effective Hao1 gene disruption, a significant decrease in glycolate oxidase expression, and a therapeutic effect in PH1 mice. The assessment of undesired genetic modifications through CIRCLE-seq and CAST-Seq analyses revealed neither off-target activity nor chromosomal translocations. Importantly, the use of paired-D10ASaCas9 resulted in a significant reduction in AAV integration at the target site compared to SaCas9 nuclease. In addition, our study highlights the limitations of current analytical tools in characterizing modifications introduced by paired D10ASaCas9, necessitating the development of a custom pipeline for more accurate characterization. These results describe a positive advance towards a safe and effective potential long-term treatment for PH1 patients.
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Affiliation(s)
- Laura Torella
- DNA & RNA Medicine Division, Center for Applied Medical Research (CIMA), University of Navarra, 31008, Pamplona, Spain
| | - Julia Klermund
- Institute for Transfusion Medicine and Gene Therapy, Medical Center - University of Freiburg, 79106, Freiburg, Germany
- Center for Chronic Immunodeficiency (CCI), Medical Center - University of Freiburg, 79106, Freiburg, Germany
| | - Martin Bilbao-Arribas
- DNA & RNA Medicine Division, Center for Applied Medical Research (CIMA), University of Navarra, 31008, Pamplona, Spain
- IdISNA, Navarra Institute for Health Research, 31008, Pamplona, Spain
| | - Ibon Tamayo
- IdISNA, Navarra Institute for Health Research, 31008, Pamplona, Spain
- Bioinformatics Core, Center for Applied Medical Research (CIMA), University of Navarra, 31008, Pamplona, Spain
| | - Geoffroy Andrieux
- Institute of Medical Bioinformatics and Systems Medicine, Medical Center - University of Freiburg, 79110, Freiburg, Germany
- Faculty of Medicine, University of Freiburg, 79106, Freiburg, Germany
| | - Kay O Chmielewski
- Institute for Transfusion Medicine and Gene Therapy, Medical Center - University of Freiburg, 79106, Freiburg, Germany
- Center for Chronic Immunodeficiency (CCI), Medical Center - University of Freiburg, 79106, Freiburg, Germany
| | - Africa Vales
- DNA & RNA Medicine Division, Center for Applied Medical Research (CIMA), University of Navarra, 31008, Pamplona, Spain
| | - Cristina Olagüe
- DNA & RNA Medicine Division, Center for Applied Medical Research (CIMA), University of Navarra, 31008, Pamplona, Spain
| | - Daniel Moreno-Luqui
- DNA & RNA Medicine Division, Center for Applied Medical Research (CIMA), University of Navarra, 31008, Pamplona, Spain
| | - Ivan Raimondi
- DNA & RNA Medicine Division, Center for Applied Medical Research (CIMA), University of Navarra, 31008, Pamplona, Spain
| | - Amaya Abad
- DNA & RNA Medicine Division, Center for Applied Medical Research (CIMA), University of Navarra, 31008, Pamplona, Spain
| | - Julen Torrens-Baile
- DNA & RNA Medicine Division, Center for Applied Medical Research (CIMA), University of Navarra, 31008, Pamplona, Spain
| | - Eduardo Salido
- Hospital Universitario de Canarias, Universidad La Laguna, CIBERER, 38320, Tenerife, Spain
| | - Maite Huarte
- DNA & RNA Medicine Division, Center for Applied Medical Research (CIMA), University of Navarra, 31008, Pamplona, Spain
| | - Mikel Hernaez
- IdISNA, Navarra Institute for Health Research, 31008, Pamplona, Spain
- Bioinformatics Core, Center for Applied Medical Research (CIMA), University of Navarra, 31008, Pamplona, Spain
| | - Melanie Boerries
- Institute of Medical Bioinformatics and Systems Medicine, Medical Center - University of Freiburg, 79110, Freiburg, Germany
- Faculty of Medicine, University of Freiburg, 79106, Freiburg, Germany
- German Cancer Consortium (DKTK), Partner Site Freiburg, 79106, Freiburg, Germany
- German Cancer Research Center (DKFZ), 69120, Heidelberg, Germany
| | - Toni Cathomen
- Institute for Transfusion Medicine and Gene Therapy, Medical Center - University of Freiburg, 79106, Freiburg, Germany.
- Center for Chronic Immunodeficiency (CCI), Medical Center - University of Freiburg, 79106, Freiburg, Germany.
- Faculty of Medicine, University of Freiburg, 79106, Freiburg, Germany.
| | - Nerea Zabaleta
- Grousbeck Gene Therapy Center, Schepens Eye Research Institute, Mass Eye and Ear, Harvard Medical School, 02114, Boston, MA, USA.
| | - Gloria Gonzalez-Aseguinolaza
- DNA & RNA Medicine Division, Center for Applied Medical Research (CIMA), University of Navarra, 31008, Pamplona, Spain.
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2
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Zabaleta N, Gil-Farina I. Tracing the fate of AAV vectors in the body. Nat Biotechnol 2023:10.1038/s41587-023-02047-5. [PMID: 38012451 DOI: 10.1038/s41587-023-02047-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2023]
Affiliation(s)
- Nerea Zabaleta
- Grousbeck Gene Therapy Center, Schepens Eye Research Institute, Mass Eye and Ear, Boston, MA, USA
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3
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Kumar P, Wang M, Kumru OS, Hickey JM, Sanmiguel J, Zabaleta N, Vandenberghe LH, Joshi SB, Volkin DB. Correlating physicochemical and biological properties to define critical quality attributes of a rAAV vaccine candidate. Mol Ther Methods Clin Dev 2023; 30:103-121. [PMID: 37746246 PMCID: PMC10512015 DOI: 10.1016/j.omtm.2023.06.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2023] [Accepted: 06/08/2023] [Indexed: 09/26/2023]
Abstract
Recombinant adeno-associated viruses (rAAVs) are a preferred vector system in clinical gene transfer. A fundamental challenge to formulate and deliver rAAVs as stable and efficacious vaccines is to elucidate interrelationships between the vector's physicochemical properties and biological potency. To this end, we evaluated an rAAV-based coronavirus disease 2019 (COVID-19) vaccine candidate that encodes the Spike antigen (AC3) and is produced by a commercially viable process. First, state-of-the-art analytical techniques were employed to determine key structural attributes of AC3, including primary and higher-order structures, particle size, empty/full capsid ratios, aggregates, and multi-step thermal degradation pathway analysis. Next, several quantitative potency measures for AC3 were implemented, and data were correlated with the physicochemical analyses on thermally stressed and control samples. Results demonstrate links between decreasing AC3 physical stability profiles, in vitro transduction efficiency in a cell-based assay, and, importantly, in vivo immunogenicity in a mouse model. These findings are discussed in the general context of future development of rAAV-based vaccine candidates as well as specifically for the rAAV vaccine application under study.
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Affiliation(s)
- Prashant Kumar
- Department of Pharmaceutical Chemistry, Vaccine Analytics and Formulation Center, University of Kansas, Lawrence, KS 66047, USA
| | - Michael Wang
- Department of Pharmaceutical Chemistry, Vaccine Analytics and Formulation Center, University of Kansas, Lawrence, KS 66047, USA
| | - Ozan S. Kumru
- Department of Pharmaceutical Chemistry, Vaccine Analytics and Formulation Center, University of Kansas, Lawrence, KS 66047, USA
| | - John M. Hickey
- Department of Pharmaceutical Chemistry, Vaccine Analytics and Formulation Center, University of Kansas, Lawrence, KS 66047, USA
| | - Julio Sanmiguel
- Grousbeck Gene Therapy Center, Mass Eye and Ear, Harvard Medical School, Boston, MA 02114, USA
| | - Nerea Zabaleta
- Grousbeck Gene Therapy Center, Mass Eye and Ear, Harvard Medical School, Boston, MA 02114, USA
| | - Luk H. Vandenberghe
- Grousbeck Gene Therapy Center, Mass Eye and Ear, Harvard Medical School, Boston, MA 02114, USA
| | - Sangeeta B. Joshi
- Department of Pharmaceutical Chemistry, Vaccine Analytics and Formulation Center, University of Kansas, Lawrence, KS 66047, USA
| | - David B. Volkin
- Department of Pharmaceutical Chemistry, Vaccine Analytics and Formulation Center, University of Kansas, Lawrence, KS 66047, USA
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4
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Reichart D, Newby GA, Wakimoto H, Lun M, Gorham JM, Curran JJ, Raguram A, DeLaughter DM, Conner DA, Marsiglia JDC, Kohli S, Chmatal L, Page DC, Zabaleta N, Vandenberghe L, Liu DR, Seidman JG, Seidman C. Efficient in vivo genome editing prevents hypertrophic cardiomyopathy in mice. Nat Med 2023; 29:412-421. [PMID: 36797483 PMCID: PMC9941048 DOI: 10.1038/s41591-022-02190-7] [Citation(s) in RCA: 42] [Impact Index Per Article: 42.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2022] [Accepted: 12/16/2022] [Indexed: 02/18/2023]
Abstract
Dominant missense pathogenic variants in cardiac myosin heavy chain cause hypertrophic cardiomyopathy (HCM), a currently incurable disorder that increases risk for stroke, heart failure and sudden cardiac death. In this study, we assessed two different genetic therapies-an adenine base editor (ABE8e) and a potent Cas9 nuclease delivered by AAV9-to prevent disease in mice carrying the heterozygous HCM pathogenic variant myosin R403Q. One dose of dual-AAV9 vectors, each carrying one half of RNA-guided ABE8e, corrected the pathogenic variant in ≥70% of ventricular cardiomyocytes and maintained durable, normal cardiac structure and function. An additional dose provided more editing in the atria but also increased bystander editing. AAV9 delivery of RNA-guided Cas9 nuclease effectively inactivated the pathogenic allele, albeit with dose-dependent toxicities, necessitating a narrow therapeutic window to maintain health. These preclinical studies demonstrate considerable potential for single-dose genetic therapies to correct or silence pathogenic variants and prevent the development of HCM.
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Affiliation(s)
- Daniel Reichart
- Department of Genetics, Harvard Medical School, Boston, MA, USA
- Department of Medicine I, University Hospital, LMU Munich, Munich, Germany
| | - Gregory A Newby
- Merkin Institute of Transformative Technologies in Healthcare, Broad Institute of Harvard and MIT, Cambridge, MA, USA
- Department of Chemistry and Chemical Biology, Harvard University, Cambridge, MA, USA
- Howard Hughes Medical Institute, Chevy Chase, MD, USA
| | - Hiroko Wakimoto
- Department of Genetics, Harvard Medical School, Boston, MA, USA
| | - Mingyue Lun
- Department of Genetics, Harvard Medical School, Boston, MA, USA
| | - Joshua M Gorham
- Department of Genetics, Harvard Medical School, Boston, MA, USA
| | - Justin J Curran
- Department of Genetics, Harvard Medical School, Boston, MA, USA
| | - Aditya Raguram
- Merkin Institute of Transformative Technologies in Healthcare, Broad Institute of Harvard and MIT, Cambridge, MA, USA
- Department of Chemistry and Chemical Biology, Harvard University, Cambridge, MA, USA
- Howard Hughes Medical Institute, Chevy Chase, MD, USA
| | - Daniel M DeLaughter
- Department of Genetics, Harvard Medical School, Boston, MA, USA
- Howard Hughes Medical Institute, Chevy Chase, MD, USA
| | - David A Conner
- Department of Genetics, Harvard Medical School, Boston, MA, USA
| | | | - Sajeev Kohli
- Merkin Institute of Transformative Technologies in Healthcare, Broad Institute of Harvard and MIT, Cambridge, MA, USA
- Department of Chemistry and Chemical Biology, Harvard University, Cambridge, MA, USA
- Howard Hughes Medical Institute, Chevy Chase, MD, USA
| | | | - David C Page
- Howard Hughes Medical Institute, Chevy Chase, MD, USA
- Whitehead Institute, Cambridge, MA, USA
- Department of Biology, Massachusetts Institute of Technology, Cambridge, MA, USA
| | - Nerea Zabaleta
- Grousbeck Gene Therapy Center, Schepens Eye Research Institute, Mass Eye and Ear, Boston, MA, USA
- Ocular Genomics Institute, Department of Ophthalmology, Harvard Medical School, Boston, MA, USA
- Harvard Stem Cell Institute, Harvard University, Cambridge, MA, USA
| | - Luk Vandenberghe
- Grousbeck Gene Therapy Center, Schepens Eye Research Institute, Mass Eye and Ear, Boston, MA, USA
- Ocular Genomics Institute, Department of Ophthalmology, Harvard Medical School, Boston, MA, USA
- Harvard Stem Cell Institute, Harvard University, Cambridge, MA, USA
| | - David R Liu
- Merkin Institute of Transformative Technologies in Healthcare, Broad Institute of Harvard and MIT, Cambridge, MA, USA
- Department of Chemistry and Chemical Biology, Harvard University, Cambridge, MA, USA
- Howard Hughes Medical Institute, Chevy Chase, MD, USA
| | | | - Christine Seidman
- Department of Genetics, Harvard Medical School, Boston, MA, USA.
- Howard Hughes Medical Institute, Chevy Chase, MD, USA.
- Cardiovascular Division, Brigham and Women's Hospital, Boston, MA, USA.
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5
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Zinn E, Unzu C, Schmit PF, Turunen HT, Zabaleta N, Sanmiguel J, Fieldsend A, Bhatt U, Diop C, Merkel E, Gurrala R, Peacker B, Rios C, Messemer K, Santos J, Estelien R, Andres-Mateos E, Wagers AJ, Tipper C, Vandenberghe LH. Ancestral library identifies conserved reprogrammable liver motif on AAV capsid. Cell Rep Med 2022; 3:100803. [PMID: 36327973 PMCID: PMC9729830 DOI: 10.1016/j.xcrm.2022.100803] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2021] [Revised: 04/18/2022] [Accepted: 10/12/2022] [Indexed: 11/07/2022]
Abstract
Gene therapy is emerging as a modality in 21st-century medicine. Adeno-associated viral (AAV) gene transfer is a leading technology to achieve efficient and durable expression of a therapeutic transgene. However, the structural complexity of the capsid has constrained efforts to engineer the particle toward improved clinical safety and efficacy. Here, we generate a curated library of barcoded AAVs with mutations across a variety of functionally relevant motifs. We then screen this library in vitro and in vivo in mice and nonhuman primates, enabling a broad, multiparametric assessment of every vector within the library. Among the results, we note a single residue that modulates liver transduction across all interrogated models while preserving transduction in heart and skeletal muscles. Moreover, we find that this mutation can be grafted into AAV9 and leads to profound liver detargeting while retaining muscle transduction-a finding potentially relevant to preventing hepatoxicities seen in clinical studies.
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Affiliation(s)
- Eric Zinn
- Grousbeck Gene Therapy Center, Schepens Eye Research Institute, Mass Eye and Ear, Boston, MA, USA; Ocular Genomics Institute, Department of Ophthalmology, Harvard Medical School, Boston, MA, USA; The Broad Institute of Harvard and MIT, Cambridge, MA, USA; Harvard Stem Cell Institute, Harvard University, Cambridge, MA, USA
| | - Carmen Unzu
- Grousbeck Gene Therapy Center, Schepens Eye Research Institute, Mass Eye and Ear, Boston, MA, USA; Ocular Genomics Institute, Department of Ophthalmology, Harvard Medical School, Boston, MA, USA; The Broad Institute of Harvard and MIT, Cambridge, MA, USA; Harvard Stem Cell Institute, Harvard University, Cambridge, MA, USA
| | - Pauline F Schmit
- Grousbeck Gene Therapy Center, Schepens Eye Research Institute, Mass Eye and Ear, Boston, MA, USA; Ocular Genomics Institute, Department of Ophthalmology, Harvard Medical School, Boston, MA, USA; The Broad Institute of Harvard and MIT, Cambridge, MA, USA; Harvard Stem Cell Institute, Harvard University, Cambridge, MA, USA
| | - Heikki T Turunen
- Grousbeck Gene Therapy Center, Schepens Eye Research Institute, Mass Eye and Ear, Boston, MA, USA; Ocular Genomics Institute, Department of Ophthalmology, Harvard Medical School, Boston, MA, USA; The Broad Institute of Harvard and MIT, Cambridge, MA, USA; Harvard Stem Cell Institute, Harvard University, Cambridge, MA, USA
| | - Nerea Zabaleta
- Grousbeck Gene Therapy Center, Schepens Eye Research Institute, Mass Eye and Ear, Boston, MA, USA; Ocular Genomics Institute, Department of Ophthalmology, Harvard Medical School, Boston, MA, USA; The Broad Institute of Harvard and MIT, Cambridge, MA, USA; Harvard Stem Cell Institute, Harvard University, Cambridge, MA, USA
| | - Julio Sanmiguel
- Grousbeck Gene Therapy Center, Schepens Eye Research Institute, Mass Eye and Ear, Boston, MA, USA; Ocular Genomics Institute, Department of Ophthalmology, Harvard Medical School, Boston, MA, USA; The Broad Institute of Harvard and MIT, Cambridge, MA, USA; Harvard Stem Cell Institute, Harvard University, Cambridge, MA, USA
| | - Allegra Fieldsend
- Grousbeck Gene Therapy Center, Schepens Eye Research Institute, Mass Eye and Ear, Boston, MA, USA; Ocular Genomics Institute, Department of Ophthalmology, Harvard Medical School, Boston, MA, USA; The Broad Institute of Harvard and MIT, Cambridge, MA, USA; Harvard Stem Cell Institute, Harvard University, Cambridge, MA, USA
| | - Urja Bhatt
- Grousbeck Gene Therapy Center, Schepens Eye Research Institute, Mass Eye and Ear, Boston, MA, USA; Ocular Genomics Institute, Department of Ophthalmology, Harvard Medical School, Boston, MA, USA; The Broad Institute of Harvard and MIT, Cambridge, MA, USA; Harvard Stem Cell Institute, Harvard University, Cambridge, MA, USA
| | - Cheikh Diop
- Grousbeck Gene Therapy Center, Schepens Eye Research Institute, Mass Eye and Ear, Boston, MA, USA; Ocular Genomics Institute, Department of Ophthalmology, Harvard Medical School, Boston, MA, USA; The Broad Institute of Harvard and MIT, Cambridge, MA, USA; Harvard Stem Cell Institute, Harvard University, Cambridge, MA, USA
| | - Erin Merkel
- Grousbeck Gene Therapy Center, Schepens Eye Research Institute, Mass Eye and Ear, Boston, MA, USA; Ocular Genomics Institute, Department of Ophthalmology, Harvard Medical School, Boston, MA, USA; The Broad Institute of Harvard and MIT, Cambridge, MA, USA; Harvard Stem Cell Institute, Harvard University, Cambridge, MA, USA
| | - Rakesh Gurrala
- Grousbeck Gene Therapy Center, Schepens Eye Research Institute, Mass Eye and Ear, Boston, MA, USA; Ocular Genomics Institute, Department of Ophthalmology, Harvard Medical School, Boston, MA, USA; The Broad Institute of Harvard and MIT, Cambridge, MA, USA; Harvard Stem Cell Institute, Harvard University, Cambridge, MA, USA
| | - Bryan Peacker
- Harvard Stem Cell Institute, Harvard University, Cambridge, MA, USA; Department of Stem Cell and Regenerative Biology, Harvard University, Cambridge, MA 02138, USA; Paul F. Glenn Center for the Biology of Aging, Harvard Medical School, Boston, MA 02115, USA
| | - Christopher Rios
- Harvard Stem Cell Institute, Harvard University, Cambridge, MA, USA; Department of Stem Cell and Regenerative Biology, Harvard University, Cambridge, MA 02138, USA; Paul F. Glenn Center for the Biology of Aging, Harvard Medical School, Boston, MA 02115, USA
| | - Kathleen Messemer
- Harvard Stem Cell Institute, Harvard University, Cambridge, MA, USA; Department of Stem Cell and Regenerative Biology, Harvard University, Cambridge, MA 02138, USA; Paul F. Glenn Center for the Biology of Aging, Harvard Medical School, Boston, MA 02115, USA
| | - Jennifer Santos
- Grousbeck Gene Therapy Center, Schepens Eye Research Institute, Mass Eye and Ear, Boston, MA, USA; Ocular Genomics Institute, Department of Ophthalmology, Harvard Medical School, Boston, MA, USA; The Broad Institute of Harvard and MIT, Cambridge, MA, USA; Harvard Stem Cell Institute, Harvard University, Cambridge, MA, USA
| | - Reynette Estelien
- Grousbeck Gene Therapy Center, Schepens Eye Research Institute, Mass Eye and Ear, Boston, MA, USA; Ocular Genomics Institute, Department of Ophthalmology, Harvard Medical School, Boston, MA, USA; The Broad Institute of Harvard and MIT, Cambridge, MA, USA; Harvard Stem Cell Institute, Harvard University, Cambridge, MA, USA
| | - Eva Andres-Mateos
- Grousbeck Gene Therapy Center, Schepens Eye Research Institute, Mass Eye and Ear, Boston, MA, USA; Ocular Genomics Institute, Department of Ophthalmology, Harvard Medical School, Boston, MA, USA; The Broad Institute of Harvard and MIT, Cambridge, MA, USA; Harvard Stem Cell Institute, Harvard University, Cambridge, MA, USA
| | - Amy J Wagers
- Harvard Stem Cell Institute, Harvard University, Cambridge, MA, USA; Department of Stem Cell and Regenerative Biology, Harvard University, Cambridge, MA 02138, USA; Paul F. Glenn Center for the Biology of Aging, Harvard Medical School, Boston, MA 02115, USA; Joslin Diabetes Center, Boston, MA 02215, USA
| | - Christopher Tipper
- Grousbeck Gene Therapy Center, Schepens Eye Research Institute, Mass Eye and Ear, Boston, MA, USA; Ocular Genomics Institute, Department of Ophthalmology, Harvard Medical School, Boston, MA, USA; The Broad Institute of Harvard and MIT, Cambridge, MA, USA; Harvard Stem Cell Institute, Harvard University, Cambridge, MA, USA
| | - Luk H Vandenberghe
- Grousbeck Gene Therapy Center, Schepens Eye Research Institute, Mass Eye and Ear, Boston, MA, USA; Ocular Genomics Institute, Department of Ophthalmology, Harvard Medical School, Boston, MA, USA; The Broad Institute of Harvard and MIT, Cambridge, MA, USA; Harvard Stem Cell Institute, Harvard University, Cambridge, MA, USA.
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6
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Zabaleta N, Bhatt U, Hérate C, Maisonnasse P, Sanmiguel J, Diop C, Castore S, Estelien R, Li D, Dereuddre-Bosquet N, Cavarelli M, Gallouët AS, Pascal Q, Naninck T, Kahlaoui N, Lemaitre J, Relouzat F, Ronzitti G, Thibaut HJ, Montomoli E, Wilson JM, Le Grand R, Vandenberghe LH. Durable immunogenicity, adaptation to emerging variants, and low-dose efficacy of an AAV-based COVID-19 vaccine platform in macaques. Mol Ther 2022; 30:2952-2967. [PMID: 35546782 PMCID: PMC9088091 DOI: 10.1016/j.ymthe.2022.05.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2022] [Revised: 05/05/2022] [Accepted: 05/07/2022] [Indexed: 11/19/2022] Open
Abstract
The COVID-19 pandemic continues to have devastating consequences on health and economy, even after the approval of safe and effective vaccines. Waning immunity, the emergence of variants of concern, breakthrough infections, and lack of global vaccine access and acceptance perpetuate the epidemic. Here, we demonstrate that a single injection of an adenoassociated virus (AAV)-based COVID-19 vaccine elicits at least 17-month-long neutralizing antibody responses in non-human primates at levels that were previously shown to protect from viral challenge. To improve the scalability of this durable vaccine candidate, we further optimized the vector design for greater potency at a reduced dose in mice and non-human primates. Finally, we show that the platform can be rapidly adapted to other variants of concern to robustly maintain immunogenicity and protect from challenge. In summary, we demonstrate this class of AAV can provide durable immunogenicity, provide protection at dose that is low and scalable, and be adapted readily to novel emerging vaccine antigens thus may provide a potent tool in the ongoing fight against severe acute respiratory syndrome coronavirus-2 (SARS-CoV-2).
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Affiliation(s)
- Nerea Zabaleta
- Grousbeck Gene Therapy Center, Schepens Eye Research Institute, Mass Eye and Ear, Boston, MA 02114, USA; Ocular Genomics Institute, Department of Ophthalmology, Harvard Medical School, Boston, MA 02114, USA; The Broad Institute of Harvard and MIT, Cambridge, MA 02142, USA; Harvard Stem Cell Institute, Harvard University, Cambridge, MA 02138, USA
| | - Urja Bhatt
- Grousbeck Gene Therapy Center, Schepens Eye Research Institute, Mass Eye and Ear, Boston, MA 02114, USA; Ocular Genomics Institute, Department of Ophthalmology, Harvard Medical School, Boston, MA 02114, USA; The Broad Institute of Harvard and MIT, Cambridge, MA 02142, USA; Harvard Stem Cell Institute, Harvard University, Cambridge, MA 02138, USA
| | - Cécile Hérate
- Center for Immunology of Viral, Auto-immune, Hematological and Bacterial Diseases (IMVA-HB/IDMIT), Université Paris-Saclay, Inserm, CEA, 92260 Fontenay-aux-Roses, France
| | - Pauline Maisonnasse
- Center for Immunology of Viral, Auto-immune, Hematological and Bacterial Diseases (IMVA-HB/IDMIT), Université Paris-Saclay, Inserm, CEA, 92260 Fontenay-aux-Roses, France
| | - Julio Sanmiguel
- Grousbeck Gene Therapy Center, Schepens Eye Research Institute, Mass Eye and Ear, Boston, MA 02114, USA; Ocular Genomics Institute, Department of Ophthalmology, Harvard Medical School, Boston, MA 02114, USA; The Broad Institute of Harvard and MIT, Cambridge, MA 02142, USA; Harvard Stem Cell Institute, Harvard University, Cambridge, MA 02138, USA
| | - Cheikh Diop
- Grousbeck Gene Therapy Center, Schepens Eye Research Institute, Mass Eye and Ear, Boston, MA 02114, USA; Ocular Genomics Institute, Department of Ophthalmology, Harvard Medical School, Boston, MA 02114, USA; The Broad Institute of Harvard and MIT, Cambridge, MA 02142, USA; Harvard Stem Cell Institute, Harvard University, Cambridge, MA 02138, USA
| | - Sofia Castore
- Grousbeck Gene Therapy Center, Schepens Eye Research Institute, Mass Eye and Ear, Boston, MA 02114, USA; Ocular Genomics Institute, Department of Ophthalmology, Harvard Medical School, Boston, MA 02114, USA; The Broad Institute of Harvard and MIT, Cambridge, MA 02142, USA; Harvard Stem Cell Institute, Harvard University, Cambridge, MA 02138, USA
| | - Reynette Estelien
- Grousbeck Gene Therapy Center, Schepens Eye Research Institute, Mass Eye and Ear, Boston, MA 02114, USA; Ocular Genomics Institute, Department of Ophthalmology, Harvard Medical School, Boston, MA 02114, USA; The Broad Institute of Harvard and MIT, Cambridge, MA 02142, USA; Harvard Stem Cell Institute, Harvard University, Cambridge, MA 02138, USA
| | - Dan Li
- Grousbeck Gene Therapy Center, Schepens Eye Research Institute, Mass Eye and Ear, Boston, MA 02114, USA; Ocular Genomics Institute, Department of Ophthalmology, Harvard Medical School, Boston, MA 02114, USA; The Broad Institute of Harvard and MIT, Cambridge, MA 02142, USA; Harvard Stem Cell Institute, Harvard University, Cambridge, MA 02138, USA
| | - Nathalie Dereuddre-Bosquet
- Center for Immunology of Viral, Auto-immune, Hematological and Bacterial Diseases (IMVA-HB/IDMIT), Université Paris-Saclay, Inserm, CEA, 92260 Fontenay-aux-Roses, France
| | - Mariangela Cavarelli
- Center for Immunology of Viral, Auto-immune, Hematological and Bacterial Diseases (IMVA-HB/IDMIT), Université Paris-Saclay, Inserm, CEA, 92260 Fontenay-aux-Roses, France
| | - Anne-Sophie Gallouët
- Center for Immunology of Viral, Auto-immune, Hematological and Bacterial Diseases (IMVA-HB/IDMIT), Université Paris-Saclay, Inserm, CEA, 92260 Fontenay-aux-Roses, France
| | - Quentin Pascal
- Center for Immunology of Viral, Auto-immune, Hematological and Bacterial Diseases (IMVA-HB/IDMIT), Université Paris-Saclay, Inserm, CEA, 92260 Fontenay-aux-Roses, France
| | - Thibaut Naninck
- Center for Immunology of Viral, Auto-immune, Hematological and Bacterial Diseases (IMVA-HB/IDMIT), Université Paris-Saclay, Inserm, CEA, 92260 Fontenay-aux-Roses, France
| | - Nidhal Kahlaoui
- Center for Immunology of Viral, Auto-immune, Hematological and Bacterial Diseases (IMVA-HB/IDMIT), Université Paris-Saclay, Inserm, CEA, 92260 Fontenay-aux-Roses, France
| | - Julien Lemaitre
- Center for Immunology of Viral, Auto-immune, Hematological and Bacterial Diseases (IMVA-HB/IDMIT), Université Paris-Saclay, Inserm, CEA, 92260 Fontenay-aux-Roses, France
| | - Francis Relouzat
- Center for Immunology of Viral, Auto-immune, Hematological and Bacterial Diseases (IMVA-HB/IDMIT), Université Paris-Saclay, Inserm, CEA, 92260 Fontenay-aux-Roses, France
| | - Giuseppe Ronzitti
- Généthon INTEGRARE UMR-S951 (Institut National de la Santé et de la Recherche Médicale, Université d'Evry, Université Paris-Saclay), 91000 Evry, France
| | - Hendrik Jan Thibaut
- KU Leuven Department of Microbiology, Immunology and Transplantation, Rega Institute, Translational Platform Virology and Chemotherapy (TPVC), 3000 Leuven, Belgium
| | - Emanuele Montomoli
- VisMederi Srl, 53100 Siena, Italy; University of Siena, Department of Molecular Medicine, 53100 Siena, Italy
| | - James M Wilson
- Gene Therapy Program, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA
| | - Roger Le Grand
- Center for Immunology of Viral, Auto-immune, Hematological and Bacterial Diseases (IMVA-HB/IDMIT), Université Paris-Saclay, Inserm, CEA, 92260 Fontenay-aux-Roses, France
| | - Luk H Vandenberghe
- Grousbeck Gene Therapy Center, Schepens Eye Research Institute, Mass Eye and Ear, Boston, MA 02114, USA; Ocular Genomics Institute, Department of Ophthalmology, Harvard Medical School, Boston, MA 02114, USA; The Broad Institute of Harvard and MIT, Cambridge, MA 02142, USA; Harvard Stem Cell Institute, Harvard University, Cambridge, MA 02138, USA.
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7
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Zabaleta N, Torella L, Weber ND, Gonzalez‐Aseguinolaza G. mRNA and gene editing: Late breaking therapies in liver diseases. Hepatology 2022; 76:869-887. [PMID: 35243655 PMCID: PMC9546265 DOI: 10.1002/hep.32441] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/01/2021] [Revised: 02/22/2022] [Accepted: 02/24/2022] [Indexed: 12/13/2022]
Abstract
The efficient delivery of RNA molecules to restore the expression of a missing or inadequately functioning protein in a target cell and the intentional specific modification of the host genome using engineered nucleases represent therapeutic concepts that are revolutionizing modern medicine. The initiation of several clinical trials using these approaches to treat metabolic liver disorders as well as the recently reported remarkable results obtained by patients with transthyretin amyloidosis highlight the advances in this field and show the potential of these therapies to treat these diseases safely and efficaciously. These advances have been possible due, firstly, to significant improvements made in RNA chemistry that increase its stability and prevent activation of the innate immune response and, secondly, to the development of very efficient liver-targeted RNA delivery systems. In parallel, the breakout of CRISPR/CRISPR-associated 9-based technology in the gene editing field has marked a turning point in in vivo modification of the cellular genome with therapeutic purposes, which can be based on gene supplementation, correction, or silencing. In the coming years we are likely to witness the therapeutic potential of these two strategies both separately and in combination. In this review we summarize the preclinical data obtained in animal models treated with mRNA as a therapeutic agent and discuss the different gene editing strategies applied to the treatment of liver diseases, highlighting both their therapeutic efficacy as well as safety concerns.
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Affiliation(s)
- Nerea Zabaleta
- Grousbeck Gene Therapy CenterSchepens Eye Research InstituteMass Eye and EarBostonMassachusettsUSA
| | - Laura Torella
- Gene Therapy and Regulation of Gene expression Program, Foundation for Applied Medical ResearchUniversity of NavarraIdisNAPamplonaSpain
| | | | - Gloria Gonzalez‐Aseguinolaza
- Gene Therapy and Regulation of Gene expression Program, Foundation for Applied Medical ResearchUniversity of NavarraIdisNAPamplonaSpain,Vivet TherapeuticsPamplonaSpain
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8
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Naninck T, Kahlaoui N, Lemaitre J, Maisonnasse P, De Mori A, Pascal Q, Contreras V, Marlin R, Relouzat F, Delache B, Hérate C, Aldon Y, van Gils M, Zabaleta N, Ho Tsong Fang R, Bosquet N, Sanders RW, Vandenberghe LH, Chapon C, Le Grand R. Computed tomography and [ 18F]-FDG PET imaging provide additional readouts for COVID-19 pathogenesis and therapies evaluation in non-human primates. iScience 2022; 25:104101. [PMID: 35313622 PMCID: PMC8926429 DOI: 10.1016/j.isci.2022.104101] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2021] [Revised: 03/07/2022] [Accepted: 03/15/2022] [Indexed: 11/26/2022] Open
Abstract
Non-human primates (NHPs) are particularly relevant as preclinical models for SARS-CoV-2 infection and nuclear imaging may represent a valuable tool for monitoring infection in this species. We investigated the benefit of computed X-ray tomography (CT) and [18F]-FDG positron emission tomography (PET) to monitor the early phase of the disease in a large cohort (n = 76) of SARS-CoV-2 infected macaques. Following infection, animals showed mild COVID-19 symptoms including typical lung lesions. CT scores at the acute phase reflect the heterogeneity of lung burden following infection. Moreover, [18F]-FDG PET revealed that FDG uptake was significantly higher in the lungs, nasal cavities, lung-draining lymph nodes, and spleen of NHPs by 5 days postinfection compared to pre-infection levels, indicating early local inflammation. The comparison of CT and PET data from previous COVID-19 treatments or vaccines we tested in NHP, to this large cohort of untreated animals demonstrated the value of in vivo imaging in preclinical trials. Macaques exposed to SARS-CoV-2 show typical mild COVID-19 lung lesions Infected animals have increased metabolism in airways and some lymphatic organs PET and CT imaging provide an additional readout to assess therapy efficacy
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Affiliation(s)
- Thibaut Naninck
- Université Paris-Saclay, Inserm, CEA, Center for Immunology of Viral, Auto-immune, Hematological and Bacterial Diseases (IMVA-HB/IDMIT), Fontenay-aux-Roses & Le Kremlin-Bicêtre, Paris, France
| | - Nidhal Kahlaoui
- Université Paris-Saclay, Inserm, CEA, Center for Immunology of Viral, Auto-immune, Hematological and Bacterial Diseases (IMVA-HB/IDMIT), Fontenay-aux-Roses & Le Kremlin-Bicêtre, Paris, France
| | - Julien Lemaitre
- Université Paris-Saclay, Inserm, CEA, Center for Immunology of Viral, Auto-immune, Hematological and Bacterial Diseases (IMVA-HB/IDMIT), Fontenay-aux-Roses & Le Kremlin-Bicêtre, Paris, France
| | - Pauline Maisonnasse
- Université Paris-Saclay, Inserm, CEA, Center for Immunology of Viral, Auto-immune, Hematological and Bacterial Diseases (IMVA-HB/IDMIT), Fontenay-aux-Roses & Le Kremlin-Bicêtre, Paris, France
| | - Antoine De Mori
- Université Paris-Saclay, Inserm, CEA, Center for Immunology of Viral, Auto-immune, Hematological and Bacterial Diseases (IMVA-HB/IDMIT), Fontenay-aux-Roses & Le Kremlin-Bicêtre, Paris, France
| | - Quentin Pascal
- Université Paris-Saclay, Inserm, CEA, Center for Immunology of Viral, Auto-immune, Hematological and Bacterial Diseases (IMVA-HB/IDMIT), Fontenay-aux-Roses & Le Kremlin-Bicêtre, Paris, France
| | - Vanessa Contreras
- Université Paris-Saclay, Inserm, CEA, Center for Immunology of Viral, Auto-immune, Hematological and Bacterial Diseases (IMVA-HB/IDMIT), Fontenay-aux-Roses & Le Kremlin-Bicêtre, Paris, France
| | - Romain Marlin
- Université Paris-Saclay, Inserm, CEA, Center for Immunology of Viral, Auto-immune, Hematological and Bacterial Diseases (IMVA-HB/IDMIT), Fontenay-aux-Roses & Le Kremlin-Bicêtre, Paris, France
| | - Francis Relouzat
- Université Paris-Saclay, Inserm, CEA, Center for Immunology of Viral, Auto-immune, Hematological and Bacterial Diseases (IMVA-HB/IDMIT), Fontenay-aux-Roses & Le Kremlin-Bicêtre, Paris, France
| | - Benoît Delache
- Université Paris-Saclay, Inserm, CEA, Center for Immunology of Viral, Auto-immune, Hematological and Bacterial Diseases (IMVA-HB/IDMIT), Fontenay-aux-Roses & Le Kremlin-Bicêtre, Paris, France
| | - Cécile Hérate
- Université Paris-Saclay, Inserm, CEA, Center for Immunology of Viral, Auto-immune, Hematological and Bacterial Diseases (IMVA-HB/IDMIT), Fontenay-aux-Roses & Le Kremlin-Bicêtre, Paris, France
| | - Yoann Aldon
- Departments of Medical Microbiology of the Amsterdam UMC, Amsterdam Institute for Infection and Immunity, University of Amsterdam, 1105 Amsterdam, the Netherlands
| | - Marit van Gils
- Departments of Medical Microbiology of the Amsterdam UMC, Amsterdam Institute for Infection and Immunity, University of Amsterdam, 1105 Amsterdam, the Netherlands
| | - Nerea Zabaleta
- Grousbeck Gene Therapy Center, Schepens Eye Research Institute, Mass Eye and Ear, Boston, MA 02114, USA.,Ocular Genomics Institute, Department of Ophthalmology, Harvard Medical School, Boston, MA 02115, USA.,The Broad Institute of Harvard and MIT, Cambridge, MA 02142, USA.,Harvard Stem Cell Institute, Harvard University, Cambridge, MA 02138, USA
| | - Raphaël Ho Tsong Fang
- Université Paris-Saclay, Inserm, CEA, Center for Immunology of Viral, Auto-immune, Hematological and Bacterial Diseases (IMVA-HB/IDMIT), Fontenay-aux-Roses & Le Kremlin-Bicêtre, Paris, France
| | - Nathalie Bosquet
- Université Paris-Saclay, Inserm, CEA, Center for Immunology of Viral, Auto-immune, Hematological and Bacterial Diseases (IMVA-HB/IDMIT), Fontenay-aux-Roses & Le Kremlin-Bicêtre, Paris, France
| | - Rogier W Sanders
- Departments of Medical Microbiology of the Amsterdam UMC, Amsterdam Institute for Infection and Immunity, University of Amsterdam, 1105 Amsterdam, the Netherlands.,Department of Microbiology and Immunology, Weill Medical College of Cornell University, New York, NY 10021, USA
| | - Luk H Vandenberghe
- Grousbeck Gene Therapy Center, Schepens Eye Research Institute, Mass Eye and Ear, Boston, MA 02114, USA.,Ocular Genomics Institute, Department of Ophthalmology, Harvard Medical School, Boston, MA 02115, USA.,The Broad Institute of Harvard and MIT, Cambridge, MA 02142, USA.,Harvard Stem Cell Institute, Harvard University, Cambridge, MA 02138, USA
| | - Catherine Chapon
- Université Paris-Saclay, Inserm, CEA, Center for Immunology of Viral, Auto-immune, Hematological and Bacterial Diseases (IMVA-HB/IDMIT), Fontenay-aux-Roses & Le Kremlin-Bicêtre, Paris, France
| | - Roger Le Grand
- Université Paris-Saclay, Inserm, CEA, Center for Immunology of Viral, Auto-immune, Hematological and Bacterial Diseases (IMVA-HB/IDMIT), Fontenay-aux-Roses & Le Kremlin-Bicêtre, Paris, France
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9
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Maciorowski D, Diop C, Bhatt U, Estelien R, Li D, Chauhan R, Vandenberghe LH, Zabaleta N. Immunogenicity of an AAV-Based COVID-19 Vaccine in Murine Models of Obesity and Aging. Viruses 2022; 14:820. [PMID: 35458550 PMCID: PMC9026898 DOI: 10.3390/v14040820] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2022] [Revised: 03/28/2022] [Accepted: 04/13/2022] [Indexed: 11/18/2022] Open
Abstract
The SARS-CoV-2 pandemic has had a disastrous impact on global health. Although some vaccine candidates have been effective in combating SARS-CoV-2, logistical, economical, and sociological aspects still limit vaccine access globally. Recently, we reported on two room-temperature stable AAV-based COVID-19 vaccines that induced potent and protective immunogenicity following a single injection in murine and primate models. Obesity and old age are associated with increased mortality in COVID-19, as well as reduced immunogenicity and efficacy of vaccines. Here, we investigated the effectiveness of the AAVCOVID vaccine candidates in murine models of obesity and aging. Results demonstrate that obesity did not significantly alter the immunogenicity of either vaccine candidate. In aged mice, vaccine immunogenicity was impaired. These results suggest that AAV-based vaccines may have limitations in older populations and may be equally applicable in obese and non-obese populations.
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Affiliation(s)
- Dawid Maciorowski
- Grousbeck Gene Therapy Center, Schepens Eye Research Institute, Mass Eye and Ear, Boston, MA 02114, USA; (D.M.); (C.D.); (U.B.); (R.E.); (D.L.); (R.C.)
- Department of Ophthalmology, Ocular Genomics Institute, Harvard Medical School, Boston, MA 02114, USA
- The Broad Institute of Harvard and MIT, Cambridge, MA 02142, USA
- Harvard Stem Cell Institute, Harvard University, Cambridge, MA 02138, USA
| | - Cheikh Diop
- Grousbeck Gene Therapy Center, Schepens Eye Research Institute, Mass Eye and Ear, Boston, MA 02114, USA; (D.M.); (C.D.); (U.B.); (R.E.); (D.L.); (R.C.)
- Department of Ophthalmology, Ocular Genomics Institute, Harvard Medical School, Boston, MA 02114, USA
- The Broad Institute of Harvard and MIT, Cambridge, MA 02142, USA
- Harvard Stem Cell Institute, Harvard University, Cambridge, MA 02138, USA
| | - Urja Bhatt
- Grousbeck Gene Therapy Center, Schepens Eye Research Institute, Mass Eye and Ear, Boston, MA 02114, USA; (D.M.); (C.D.); (U.B.); (R.E.); (D.L.); (R.C.)
- Department of Ophthalmology, Ocular Genomics Institute, Harvard Medical School, Boston, MA 02114, USA
- The Broad Institute of Harvard and MIT, Cambridge, MA 02142, USA
- Harvard Stem Cell Institute, Harvard University, Cambridge, MA 02138, USA
| | - Reynette Estelien
- Grousbeck Gene Therapy Center, Schepens Eye Research Institute, Mass Eye and Ear, Boston, MA 02114, USA; (D.M.); (C.D.); (U.B.); (R.E.); (D.L.); (R.C.)
- Department of Ophthalmology, Ocular Genomics Institute, Harvard Medical School, Boston, MA 02114, USA
- The Broad Institute of Harvard and MIT, Cambridge, MA 02142, USA
- Harvard Stem Cell Institute, Harvard University, Cambridge, MA 02138, USA
| | - Dan Li
- Grousbeck Gene Therapy Center, Schepens Eye Research Institute, Mass Eye and Ear, Boston, MA 02114, USA; (D.M.); (C.D.); (U.B.); (R.E.); (D.L.); (R.C.)
- Department of Ophthalmology, Ocular Genomics Institute, Harvard Medical School, Boston, MA 02114, USA
- The Broad Institute of Harvard and MIT, Cambridge, MA 02142, USA
- Harvard Stem Cell Institute, Harvard University, Cambridge, MA 02138, USA
| | - Ruchi Chauhan
- Grousbeck Gene Therapy Center, Schepens Eye Research Institute, Mass Eye and Ear, Boston, MA 02114, USA; (D.M.); (C.D.); (U.B.); (R.E.); (D.L.); (R.C.)
- Department of Ophthalmology, Ocular Genomics Institute, Harvard Medical School, Boston, MA 02114, USA
- The Broad Institute of Harvard and MIT, Cambridge, MA 02142, USA
- Harvard Stem Cell Institute, Harvard University, Cambridge, MA 02138, USA
| | - Luk H. Vandenberghe
- Grousbeck Gene Therapy Center, Schepens Eye Research Institute, Mass Eye and Ear, Boston, MA 02114, USA; (D.M.); (C.D.); (U.B.); (R.E.); (D.L.); (R.C.)
- Department of Ophthalmology, Ocular Genomics Institute, Harvard Medical School, Boston, MA 02114, USA
- The Broad Institute of Harvard and MIT, Cambridge, MA 02142, USA
- Harvard Stem Cell Institute, Harvard University, Cambridge, MA 02138, USA
| | - Nerea Zabaleta
- Grousbeck Gene Therapy Center, Schepens Eye Research Institute, Mass Eye and Ear, Boston, MA 02114, USA; (D.M.); (C.D.); (U.B.); (R.E.); (D.L.); (R.C.)
- Department of Ophthalmology, Ocular Genomics Institute, Harvard Medical School, Boston, MA 02114, USA
- The Broad Institute of Harvard and MIT, Cambridge, MA 02142, USA
- Harvard Stem Cell Institute, Harvard University, Cambridge, MA 02138, USA
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10
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Zabaleta N, Dai W, Bhatt U, Hérate C, Maisonnasse P, Chichester JA, Sanmiguel J, Estelien R, Michalson KT, Diop C, Maciorowski D, Dereuddre-Bosquet N, Cavarelli M, Gallouët AS, Naninck T, Kahlaoui N, Lemaitre J, Qi W, Hudspeth E, Cucalon A, Dyer CD, Pampena MB, Knox JJ, LaRocque RC, Charles RC, Li D, Kim M, Sheridan A, Storm N, Johnson RI, Feldman J, Hauser BM, Contreras V, Marlin R, Tsong Fang RH, Chapon C, van der Werf S, Zinn E, Ryan A, Kobayashi DT, Chauhan R, McGlynn M, Ryan ET, Schmidt AG, Price B, Honko A, Griffiths A, Yaghmour S, Hodge R, Betts MR, Freeman MW, Wilson JM, Le Grand R, Vandenberghe LH. An AAV-based, room-temperature-stable, single-dose COVID-19 vaccine provides durable immunogenicity and protection in non-human primates. Cell Host Microbe 2021; 29:1437-1453.e8. [PMID: 34428428 PMCID: PMC8346325 DOI: 10.1016/j.chom.2021.08.002] [Citation(s) in RCA: 29] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2021] [Revised: 07/12/2021] [Accepted: 08/03/2021] [Indexed: 12/11/2022]
Abstract
The SARS-CoV-2 pandemic has affected more than 185 million people worldwide resulting in over 4 million deaths. To contain the pandemic, there is a continued need for safe vaccines that provide durable protection at low and scalable doses and can be deployed easily. Here, AAVCOVID-1, an adeno-associated viral (AAV), spike-gene-based vaccine candidate demonstrates potent immunogenicity in mouse and non-human primates following a single injection and confers complete protection from SARS-CoV-2 challenge in macaques. Peak neutralizing antibody titers are sustained at 1 year and complemented by functional memory T cell responses. The AAVCOVID vector has no relevant pre-existing immunity in humans and does not elicit cross-reactivity to common AAVs used in gene therapy. Vector genome persistence and expression wanes following injection. The single low-dose requirement, high-yield manufacturability, and 1-month stability for storage at room temperature may make this technology well suited to support effective immunization campaigns for emerging pathogens on a global scale.
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Affiliation(s)
- Nerea Zabaleta
- Grousbeck Gene Therapy Center, Schepens Eye Research Institute, Mass Eye and Ear, Boston, MA, USA; Ocular Genomics Institute, Department of Ophthalmology, Harvard Medical School, Boston, MA, USA; The Broad Institute of Harvard and MIT, Cambridge, MA, USA; Harvard Stem Cell Institute, Harvard University, Cambridge, MA, USA
| | - Wenlong Dai
- Grousbeck Gene Therapy Center, Schepens Eye Research Institute, Mass Eye and Ear, Boston, MA, USA; Ocular Genomics Institute, Department of Ophthalmology, Harvard Medical School, Boston, MA, USA; The Broad Institute of Harvard and MIT, Cambridge, MA, USA; Harvard Stem Cell Institute, Harvard University, Cambridge, MA, USA
| | - Urja Bhatt
- Grousbeck Gene Therapy Center, Schepens Eye Research Institute, Mass Eye and Ear, Boston, MA, USA; Ocular Genomics Institute, Department of Ophthalmology, Harvard Medical School, Boston, MA, USA; The Broad Institute of Harvard and MIT, Cambridge, MA, USA; Harvard Stem Cell Institute, Harvard University, Cambridge, MA, USA
| | - Cécile Hérate
- Center for Immunology of Viral, Auto-immune, Hematological and Bacterial diseases (IMVA-HB/IDMIT), Université Paris-Saclay, Inserm, CEA, Fontenay-aux-Roses, France
| | - Pauline Maisonnasse
- Center for Immunology of Viral, Auto-immune, Hematological and Bacterial diseases (IMVA-HB/IDMIT), Université Paris-Saclay, Inserm, CEA, Fontenay-aux-Roses, France
| | - Jessica A Chichester
- Gene Therapy Program, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA
| | - Julio Sanmiguel
- Grousbeck Gene Therapy Center, Schepens Eye Research Institute, Mass Eye and Ear, Boston, MA, USA; Ocular Genomics Institute, Department of Ophthalmology, Harvard Medical School, Boston, MA, USA; The Broad Institute of Harvard and MIT, Cambridge, MA, USA; Harvard Stem Cell Institute, Harvard University, Cambridge, MA, USA
| | - Reynette Estelien
- Grousbeck Gene Therapy Center, Schepens Eye Research Institute, Mass Eye and Ear, Boston, MA, USA; Ocular Genomics Institute, Department of Ophthalmology, Harvard Medical School, Boston, MA, USA; The Broad Institute of Harvard and MIT, Cambridge, MA, USA; Harvard Stem Cell Institute, Harvard University, Cambridge, MA, USA
| | - Kristofer T Michalson
- Gene Therapy Program, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA
| | - Cheikh Diop
- Grousbeck Gene Therapy Center, Schepens Eye Research Institute, Mass Eye and Ear, Boston, MA, USA; Ocular Genomics Institute, Department of Ophthalmology, Harvard Medical School, Boston, MA, USA; The Broad Institute of Harvard and MIT, Cambridge, MA, USA; Harvard Stem Cell Institute, Harvard University, Cambridge, MA, USA
| | - Dawid Maciorowski
- Grousbeck Gene Therapy Center, Schepens Eye Research Institute, Mass Eye and Ear, Boston, MA, USA; Ocular Genomics Institute, Department of Ophthalmology, Harvard Medical School, Boston, MA, USA; The Broad Institute of Harvard and MIT, Cambridge, MA, USA; Harvard Stem Cell Institute, Harvard University, Cambridge, MA, USA
| | - Nathalie Dereuddre-Bosquet
- Center for Immunology of Viral, Auto-immune, Hematological and Bacterial diseases (IMVA-HB/IDMIT), Université Paris-Saclay, Inserm, CEA, Fontenay-aux-Roses, France
| | - Mariangela Cavarelli
- Center for Immunology of Viral, Auto-immune, Hematological and Bacterial diseases (IMVA-HB/IDMIT), Université Paris-Saclay, Inserm, CEA, Fontenay-aux-Roses, France
| | - Anne-Sophie Gallouët
- Center for Immunology of Viral, Auto-immune, Hematological and Bacterial diseases (IMVA-HB/IDMIT), Université Paris-Saclay, Inserm, CEA, Fontenay-aux-Roses, France
| | - Thibaut Naninck
- Center for Immunology of Viral, Auto-immune, Hematological and Bacterial diseases (IMVA-HB/IDMIT), Université Paris-Saclay, Inserm, CEA, Fontenay-aux-Roses, France
| | - Nidhal Kahlaoui
- Center for Immunology of Viral, Auto-immune, Hematological and Bacterial diseases (IMVA-HB/IDMIT), Université Paris-Saclay, Inserm, CEA, Fontenay-aux-Roses, France
| | - Julien Lemaitre
- Center for Immunology of Viral, Auto-immune, Hematological and Bacterial diseases (IMVA-HB/IDMIT), Université Paris-Saclay, Inserm, CEA, Fontenay-aux-Roses, France
| | - Wenbin Qi
- Novartis Gene Therapies, San Diego, CA, USA
| | | | - Allison Cucalon
- Grousbeck Gene Therapy Center, Schepens Eye Research Institute, Mass Eye and Ear, Boston, MA, USA; Ocular Genomics Institute, Department of Ophthalmology, Harvard Medical School, Boston, MA, USA; The Broad Institute of Harvard and MIT, Cambridge, MA, USA; Harvard Stem Cell Institute, Harvard University, Cambridge, MA, USA
| | - Cecilia D Dyer
- Gene Therapy Program, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA
| | - M Betina Pampena
- Gene Therapy Program, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA; Department of Microbiology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA
| | - James J Knox
- Department of Pathology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA
| | - Regina C LaRocque
- Division of Infectious Diseases, Massachusetts General Hospital, Boston, MA, USA; Department of Medicine, Harvard Medical School, Boston, MA, USA
| | - Richelle C Charles
- Division of Infectious Diseases, Massachusetts General Hospital, Boston, MA, USA; Department of Medicine, Harvard Medical School, Boston, MA, USA
| | - Dan Li
- Grousbeck Gene Therapy Center, Schepens Eye Research Institute, Mass Eye and Ear, Boston, MA, USA; Ocular Genomics Institute, Department of Ophthalmology, Harvard Medical School, Boston, MA, USA; The Broad Institute of Harvard and MIT, Cambridge, MA, USA; Harvard Stem Cell Institute, Harvard University, Cambridge, MA, USA
| | - Maya Kim
- Grousbeck Gene Therapy Center, Schepens Eye Research Institute, Mass Eye and Ear, Boston, MA, USA; Ocular Genomics Institute, Department of Ophthalmology, Harvard Medical School, Boston, MA, USA; The Broad Institute of Harvard and MIT, Cambridge, MA, USA; Harvard Stem Cell Institute, Harvard University, Cambridge, MA, USA
| | - Abigail Sheridan
- Grousbeck Gene Therapy Center, Schepens Eye Research Institute, Mass Eye and Ear, Boston, MA, USA; Ocular Genomics Institute, Department of Ophthalmology, Harvard Medical School, Boston, MA, USA; The Broad Institute of Harvard and MIT, Cambridge, MA, USA; Harvard Stem Cell Institute, Harvard University, Cambridge, MA, USA
| | - Nadia Storm
- Department of Microbiology and National Emerging Infectious Diseases Laboratories, Boston University School of Medicine, Boston, MA 02118, USA
| | - Rebecca I Johnson
- Department of Microbiology and National Emerging Infectious Diseases Laboratories, Boston University School of Medicine, Boston, MA 02118, USA
| | - Jared Feldman
- Ragon Institute of MGH, MIT, and Harvard, Cambridge, MA 02139, USA
| | - Blake M Hauser
- Ragon Institute of MGH, MIT, and Harvard, Cambridge, MA 02139, USA
| | - Vanessa Contreras
- Center for Immunology of Viral, Auto-immune, Hematological and Bacterial diseases (IMVA-HB/IDMIT), Université Paris-Saclay, Inserm, CEA, Fontenay-aux-Roses, France
| | - Romain Marlin
- Center for Immunology of Viral, Auto-immune, Hematological and Bacterial diseases (IMVA-HB/IDMIT), Université Paris-Saclay, Inserm, CEA, Fontenay-aux-Roses, France
| | - Raphaël Ho Tsong Fang
- Center for Immunology of Viral, Auto-immune, Hematological and Bacterial diseases (IMVA-HB/IDMIT), Université Paris-Saclay, Inserm, CEA, Fontenay-aux-Roses, France
| | - Catherine Chapon
- Center for Immunology of Viral, Auto-immune, Hematological and Bacterial diseases (IMVA-HB/IDMIT), Université Paris-Saclay, Inserm, CEA, Fontenay-aux-Roses, France
| | - Sylvie van der Werf
- Molecular Genetics of RNA Viruses, Department of Virology, Institut Pasteur, CNRS UMR 3569, Université de Paris, Paris, France; National Reference Center for Respiratory Viruses, Institut Pasteur, Paris, France
| | - Eric Zinn
- Grousbeck Gene Therapy Center, Schepens Eye Research Institute, Mass Eye and Ear, Boston, MA, USA; Ocular Genomics Institute, Department of Ophthalmology, Harvard Medical School, Boston, MA, USA; The Broad Institute of Harvard and MIT, Cambridge, MA, USA; Harvard Stem Cell Institute, Harvard University, Cambridge, MA, USA
| | - Aisling Ryan
- Grousbeck Gene Therapy Center, Schepens Eye Research Institute, Mass Eye and Ear, Boston, MA, USA; Ocular Genomics Institute, Department of Ophthalmology, Harvard Medical School, Boston, MA, USA; The Broad Institute of Harvard and MIT, Cambridge, MA, USA; Harvard Stem Cell Institute, Harvard University, Cambridge, MA, USA
| | - Dione T Kobayashi
- Translational Innovation Fund, Mass General Brigham Innovation, Cambridge, MA, USA
| | - Ruchi Chauhan
- Grousbeck Gene Therapy Center, Schepens Eye Research Institute, Mass Eye and Ear, Boston, MA, USA; Ocular Genomics Institute, Department of Ophthalmology, Harvard Medical School, Boston, MA, USA; The Broad Institute of Harvard and MIT, Cambridge, MA, USA; Harvard Stem Cell Institute, Harvard University, Cambridge, MA, USA
| | - Marion McGlynn
- Gene Therapy Program, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA
| | - Edward T Ryan
- Division of Infectious Diseases, Massachusetts General Hospital, Boston, MA, USA; Department of Medicine, Harvard Medical School, Boston, MA, USA; Department of Immunology and Infectious Diseases, Harvard T. H. Chan School of Public Health, Boston, MA, USA
| | - Aaron G Schmidt
- Ragon Institute of MGH, MIT, and Harvard, Cambridge, MA 02139, USA; Department of Microbiology, Harvard Medical School, Boston, MA, USA
| | | | - Anna Honko
- Department of Microbiology and National Emerging Infectious Diseases Laboratories, Boston University School of Medicine, Boston, MA 02118, USA
| | - Anthony Griffiths
- Department of Microbiology and National Emerging Infectious Diseases Laboratories, Boston University School of Medicine, Boston, MA 02118, USA
| | | | | | - Michael R Betts
- Gene Therapy Program, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA; Department of Microbiology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA
| | - Mason W Freeman
- Center for Computational & Integrative Biology, Department of Medicine, and Translational Research Center, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA
| | - James M Wilson
- Gene Therapy Program, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA
| | - Roger Le Grand
- Center for Immunology of Viral, Auto-immune, Hematological and Bacterial diseases (IMVA-HB/IDMIT), Université Paris-Saclay, Inserm, CEA, Fontenay-aux-Roses, France.
| | - Luk H Vandenberghe
- Grousbeck Gene Therapy Center, Schepens Eye Research Institute, Mass Eye and Ear, Boston, MA, USA; Ocular Genomics Institute, Department of Ophthalmology, Harvard Medical School, Boston, MA, USA; The Broad Institute of Harvard and MIT, Cambridge, MA, USA; Harvard Stem Cell Institute, Harvard University, Cambridge, MA, USA.
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11
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Maestro S, Weber ND, Zabaleta N, Aldabe R, Gonzalez-Aseguinolaza G. Novel vectors and approaches for gene therapy in liver diseases. JHEP Rep 2021; 3:100300. [PMID: 34159305 PMCID: PMC8203845 DOI: 10.1016/j.jhepr.2021.100300] [Citation(s) in RCA: 45] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/21/2021] [Revised: 03/23/2021] [Accepted: 04/18/2021] [Indexed: 12/13/2022] Open
Abstract
Gene therapy is becoming an increasingly valuable tool to treat many genetic diseases with no or limited treatment options. This is the case for hundreds of monogenic metabolic disorders of hepatic origin, for which liver transplantation remains the only cure. Furthermore, the liver contains 10-15% of the body's total blood volume, making it ideal for use as a factory to secrete proteins into the circulation. In recent decades, an expanding toolbox has become available for liver-directed gene delivery. Although viral vectors have long been the preferred approach to target hepatocytes, an increasing number of non-viral vectors are emerging as highly efficient vehicles for the delivery of genetic material. Herein, we review advances in gene delivery vectors targeting the liver and more specifically hepatocytes, covering strategies based on gene addition and gene editing, as well as the exciting results obtained with the use of RNA as a therapeutic molecule. Moreover, we will briefly summarise some of the limitations of current liver-directed gene therapy approaches and potential ways of overcoming them.
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Key Words
- AAT, α1-antitrypsin
- AAV, adeno-associated virus
- AHP, acute hepatic porphyrias
- AIP, acute intermittent porphyria
- ALAS1, aminolevulic synthase 1
- APCs, antigen-presenting cells
- ASGCT, American Society of Gene and Cell Therapy
- ASGPR, asialoglycoprotein receptor
- ASOs, antisense oligonucleotides
- Ad, adenovirus
- CBS, cystathionine β-synthase
- CN, Crigel-Najjar
- CRISPR, clustered regularly interspaced short palindromic repeats
- CRISPR/Cas9, CRISPR associated protein 9
- DSBs, double-strand breaks
- ERT, enzyme replacement therapy
- FH, familial hypercholesterolemia
- FSP27, fat-specific protein 27
- GO, glycolate oxidase
- GSD1a, glycogen storage disorder 1a
- GT, gene therapy
- GUSB, β-glucuronidase
- GalNAc, N-acetyl-D-galactosamine
- HDAd, helper-dependent adenovirus
- HDR, homology-directed repair
- HT, hereditary tyrosinemia
- HemA/B, haemophilia A/B
- IDS, iduronate 2-sulfatase
- IDUA, α-L-iduronidase
- IMLD, inherited metabolic liver diseases
- ITR, inverted terminal repetition
- LDH, lactate dehydrogenase
- LDLR, low-density lipoprotein receptor
- LNP, Lipid nanoparticles
- LTR, long terminal repeat
- LV, lentivirus
- MMA, methylmalonic acidemia
- MPR, metabolic pathway reprograming
- MPS type I, MPSI
- MPS type VII, MPSVII
- MPS, mucopolysaccharidosis
- NASH, non-alcoholic steatohepatitis
- NHEJ, non-homologous end joining
- NHPs, non-human primates
- Non-viral vectors
- OLT, orthotopic liver transplantation
- OTC, ornithine transcarbamylase
- PA, propionic acidemia
- PB, piggyBac
- PCSK9, proprotein convertase subtilisin/kexin type 9
- PEG, polyethylene glycol
- PEI, polyethyleneimine
- PFIC3, progressive familial cholestasis type 3
- PH1, Primary hyperoxaluria type 1
- PKU, phenylketonuria
- RV, retrovirus
- S/MAR, scaffold matrix attachment regions
- SB, Sleeping Beauty
- SRT, substrate reduction therapy
- STK25, serine/threonine protein kinase 25
- TALEN, transcription activator-like effector nucleases
- TTR, transthyretin
- UCD, urea cycle disorders
- VLDLR, very-low-density lipoprotein receptor
- WD, Wilson’s disease
- ZFN, zinc finger nucleases
- apoB/E, apolipoprotein B/E
- dCas9, dead Cas9
- efficacy
- gene addition
- gene editing
- gene silencing
- hepatocytes
- immune response
- lncRNA, long non-coding RNA
- miRNAs, microRNAs
- siRNA, small-interfering RNA
- toxicity
- viral vectors
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Affiliation(s)
- Sheila Maestro
- Gene Therapy Area, Foundation for Applied Medical Research, University of Navarra, IdisNA, Pamplona, Spain
| | | | - Nerea Zabaleta
- Grousbeck Gene Therapy Center, Schepens Eye Research Institute, Mass Eye and Ear, Boston, MA, USA
| | - Rafael Aldabe
- Gene Therapy Area, Foundation for Applied Medical Research, University of Navarra, IdisNA, Pamplona, Spain
- Corresponding authors. Address: CIMA, Universidad de Navarra. Av. Pio XII 55 31008 Pamplona. Spain
| | - Gloria Gonzalez-Aseguinolaza
- Gene Therapy Area, Foundation for Applied Medical Research, University of Navarra, IdisNA, Pamplona, Spain
- Vivet Therapeutics, Pamplona, Spain
- Corresponding authors. Address: CIMA, Universidad de Navarra. Av. Pio XII 55 31008 Pamplona. Spain
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12
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Zabaleta N, Dai W, Bhatt U, Chichester JA, Sanmiguel J, Estelien R, Michalson KT, Diop C, Maciorowski D, Qi W, Hudspeth E, Cucalon A, Dyer CD, Pampena MB, Knox JJ, LaRocque RC, Charles RC, Li D, Kim M, Sheridan A, Storm N, Johnson RI, Feldman J, Hauser BM, Zinn E, Ryan A, Kobayashi DT, Chauhan R, McGlynn M, Ryan ET, Schmidt AG, Price B, Honko A, Griffiths A, Yaghmour S, Hodge R, Betts MR, Freeman MW, Wilson JM, Vandenberghe LH. Immunogenicity of an AAV-based, room-temperature stable, single dose COVID-19 vaccine in mice and non-human primates. bioRxiv 2021. [PMID: 33442684 DOI: 10.1101/2021.01.05.422952] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
The SARS-CoV-2 pandemic has affected more than 70 million people worldwide and resulted in over 1.5 million deaths. A broad deployment of effective immunization campaigns to achieve population immunity at global scale will depend on the biological and logistical attributes of the vaccine. Here, two adeno-associated viral (AAV)-based vaccine candidates demonstrate potent immunogenicity in mouse and nonhuman primates following a single injection. Peak neutralizing antibody titers remain sustained at 5 months and are complemented by functional memory T-cells responses. The AAVrh32.33 capsid of the AAVCOVID vaccine is an engineered AAV to which no relevant pre-existing immunity exists in humans. Moreover, the vaccine is stable at room temperature for at least one month and is produced at high yields using established commercial manufacturing processes in the gene therapy industry. Thus, this methodology holds as a very promising single dose, thermostable vaccine platform well-suited to address emerging pathogens on a global scale.
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13
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López-Manzaneda S, Ojeda-Pérez I, Zabaleta N, García-Torralba A, Alberquilla O, Torres R, Sánchez-Domínguez R, Torella L, Olivier E, Mountford J, Ramírez JC, Bueren JA, González-Aseguinolaza G, Segovia JC. In Vitro and In Vivo Genetic Disease Modeling via NHEJ-Precise Deletions Using CRISPR-Cas9. Mol Ther Methods Clin Dev 2020; 19:426-437. [PMID: 33294491 PMCID: PMC7683234 DOI: 10.1016/j.omtm.2020.10.007] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/09/2020] [Accepted: 10/11/2020] [Indexed: 12/01/2022]
Abstract
The development of advanced gene and cell therapies for the treatment of genetic diseases requires reliable animal and cellular models to test their efficacy. Moreover, the availability of the target human primary cells of these therapies is reduced in many diseases. The development of endonucleases that can cut into specific sites of the cell genome, as well as the repair of the generated break by non-homologous end-joining, results in a variety of outcomes, insertions, deletions, and inversions that can induce the disruption of any specific gene. Among the many methods that have been developed for gene editing, CRISPR-Cas9 technology has become one of the most widely used endonuclease tools due to its easy design and its low cost. It has also been reported that the use of two guides, instead of just the one required, reduces the outcomes of non-homologous end joining mainly to the precise genomic sequences between the cutting sites of the guides used. We have explored this strategy to generate useful cellular and animal models. Different distances between the two guides have been tested (from 8 to 500 bp apart), and using the optimal range of 30–60 bp we have obtained a human primary cellular model of a genetic disease, pyruvate kinase deficiency, where the availability of the target cells is limited. We have also generated an in vivo model of glycolate oxidase (GO) deficiency, which is an enzyme involved in the glyoxylate metabolism following the same strategy. We demonstrate that the use of two-guide CRISPR-Cas9-induced non-homologous end joining is a feasible and useful tool for disease modeling, and it is most relevant to those diseases in which it is difficult to get the cells that will be genetically manipulated.
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Affiliation(s)
- Sergio López-Manzaneda
- Cell Differentiation and Cytometry Unit. Hematopoietic Innovative Therapies Division, Centro de Investigaciones Energéticas, Medioambientales y Tecnológicas (CIEMAT) and Centro de Investigación Biomédica en Red de Enfermedades Raras (CIBERER), Madrid, Spain.,Unidad Mixta de Terapias Avanzadas. Instituto de Investigación Sanitaria Fundación Jiménez Díaz (IIS-FJD, UAM), Madrid, Spain
| | - Isabel Ojeda-Pérez
- Cell Differentiation and Cytometry Unit. Hematopoietic Innovative Therapies Division, Centro de Investigaciones Energéticas, Medioambientales y Tecnológicas (CIEMAT) and Centro de Investigación Biomédica en Red de Enfermedades Raras (CIBERER), Madrid, Spain.,Unidad Mixta de Terapias Avanzadas. Instituto de Investigación Sanitaria Fundación Jiménez Díaz (IIS-FJD, UAM), Madrid, Spain
| | | | - Aída García-Torralba
- Cell Differentiation and Cytometry Unit. Hematopoietic Innovative Therapies Division, Centro de Investigaciones Energéticas, Medioambientales y Tecnológicas (CIEMAT) and Centro de Investigación Biomédica en Red de Enfermedades Raras (CIBERER), Madrid, Spain.,Unidad Mixta de Terapias Avanzadas. Instituto de Investigación Sanitaria Fundación Jiménez Díaz (IIS-FJD, UAM), Madrid, Spain
| | - Omaira Alberquilla
- Cell Differentiation and Cytometry Unit. Hematopoietic Innovative Therapies Division, Centro de Investigaciones Energéticas, Medioambientales y Tecnológicas (CIEMAT) and Centro de Investigación Biomédica en Red de Enfermedades Raras (CIBERER), Madrid, Spain.,Unidad Mixta de Terapias Avanzadas. Instituto de Investigación Sanitaria Fundación Jiménez Díaz (IIS-FJD, UAM), Madrid, Spain
| | - Raúl Torres
- Molecular Cytogenetics Group, Human Cancer Genetics Program, Spanish National Cancer Research Centre-CNIO, Madrid, Spain
| | - Rebeca Sánchez-Domínguez
- Cell Differentiation and Cytometry Unit. Hematopoietic Innovative Therapies Division, Centro de Investigaciones Energéticas, Medioambientales y Tecnológicas (CIEMAT) and Centro de Investigación Biomédica en Red de Enfermedades Raras (CIBERER), Madrid, Spain.,Unidad Mixta de Terapias Avanzadas. Instituto de Investigación Sanitaria Fundación Jiménez Díaz (IIS-FJD, UAM), Madrid, Spain
| | | | - Emmanuel Olivier
- Scottish National Blood Transfusion Service and ICAMS, University of Glasgow, Glasgow, UK
| | - Joanne Mountford
- Scottish National Blood Transfusion Service and ICAMS, University of Glasgow, Glasgow, UK
| | | | - Juan A Bueren
- Unidad Mixta de Terapias Avanzadas. Instituto de Investigación Sanitaria Fundación Jiménez Díaz (IIS-FJD, UAM), Madrid, Spain.,Hematopoietic Innovative Therapies Division, Centro de Investigaciones Energéticas, Medioambientales y Tecnológicas (CIEMAT) and Centro de Investigación Biomédica en Red de Enfermedades Raras (CIBERER), Madrid, Spain
| | | | - Jose-Carlos Segovia
- Cell Differentiation and Cytometry Unit. Hematopoietic Innovative Therapies Division, Centro de Investigaciones Energéticas, Medioambientales y Tecnológicas (CIEMAT) and Centro de Investigación Biomédica en Red de Enfermedades Raras (CIBERER), Madrid, Spain.,Unidad Mixta de Terapias Avanzadas. Instituto de Investigación Sanitaria Fundación Jiménez Díaz (IIS-FJD, UAM), Madrid, Spain
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14
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Rodriguez-Garcia E, Zabaleta N, Gil-Farina I, Gonzalez-Aparicio M, Echeverz M, Bähre H, Solano C, Lasa I, Gonzalez-Aseguinolaza G, Hommel M. AdrA as a Potential Immunomodulatory Candidate for STING-Mediated Antiviral Therapy That Required Both Type I IFN and TNF-α Production. J Immunol 2020; 206:376-385. [PMID: 33298616 DOI: 10.4049/jimmunol.2000953] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/14/2020] [Accepted: 11/09/2020] [Indexed: 01/12/2023]
Abstract
Several dinucleotide cyclases, including cyclic GMP-AMP synthase, and their involvement in STING-mediated immunity have been extensively studied. In this study, we tested five bacterial diguanylate cyclases from the Gram-negative bacterium Salmonella Enteritidis, identifying AdrA as the most potent inducer of a STING-mediated IFN response. AdrA wild-type (wt) or its inactive version AdrA mutant (mut) were delivered by an adenovirus (Ad) vector. Dendritic cells obtained from wt mice and infected in vitro with Ad vector containing AdrA wt, but not mut, had increased activation markers and produced large amounts of several immunostimulatory cytokines. For dendritic cells derived from STING-deficient mice, no activation was detected. The potential antiviral activity of AdrA was addressed in hepatitis B virus (HBV)-transgenic and adenovirus-associated virus (AAV)-HBV mouse models. Viremia in serum of Ad AdrA wt-treated mice was reduced significantly compared with that in Ad AdrA mut-injected mice. The viral load in the liver at sacrifice was in line with this finding. To further elucidate the molecular mechanism(s) by which AdrA confers its antiviral function, the response in mice deficient in STING or its downstream effector molecules was analyzed. wt and IFN-αR (IFNAR)-/- animals were additionally treated with anti-TNF-α (Enbrel). Interestingly, albeit less pronounced than in wt mice, in IFNAR-/- and Enbrel-treated wt mice, a reduction of serum viremia was achieved-an observation that was lost in anti-TNF-α-treated IFNAR-/- animals. No effect of AdrA wt was seen in STING-deficient animals. Thus, although STING is indispensable for the antiviral activity of AdrA, type I IFN and TNF-α are both required and act synergistically.
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Affiliation(s)
- Estefania Rodriguez-Garcia
- Terapia Génica y Regulación de la Expresión Génica, Centro de Investigación Médica Aplicada, Universidad de Navarra, 31008 Pamplona, Spain.,Instituto de Investigación Sanitaria de Navarra, 31008 Pamplona, Spain
| | - Nerea Zabaleta
- Terapia Génica y Regulación de la Expresión Génica, Centro de Investigación Médica Aplicada, Universidad de Navarra, 31008 Pamplona, Spain
| | - Irene Gil-Farina
- Terapia Génica y Regulación de la Expresión Génica, Centro de Investigación Médica Aplicada, Universidad de Navarra, 31008 Pamplona, Spain
| | - Manuela Gonzalez-Aparicio
- Terapia Génica y Regulación de la Expresión Génica, Centro de Investigación Médica Aplicada, Universidad de Navarra, 31008 Pamplona, Spain.,Instituto de Investigación Sanitaria de Navarra, 31008 Pamplona, Spain
| | - Maite Echeverz
- Instituto de Investigación Sanitaria de Navarra, 31008 Pamplona, Spain.,Laboratorio Patogénesis Microbiana, Complejo Hospitalario de Navarra-Universidad Pública de Navarra, Instituto de Investigación Sanitaria de Navarra, 31008 Pamplona, Spain; and
| | - Heike Bähre
- Research Core Unit Metabolomics, Hannover Medical School, 30625 Hannover, Germany
| | - Cristina Solano
- Instituto de Investigación Sanitaria de Navarra, 31008 Pamplona, Spain.,Laboratorio Patogénesis Microbiana, Complejo Hospitalario de Navarra-Universidad Pública de Navarra, Instituto de Investigación Sanitaria de Navarra, 31008 Pamplona, Spain; and
| | - Iñigo Lasa
- Instituto de Investigación Sanitaria de Navarra, 31008 Pamplona, Spain.,Laboratorio Patogénesis Microbiana, Complejo Hospitalario de Navarra-Universidad Pública de Navarra, Instituto de Investigación Sanitaria de Navarra, 31008 Pamplona, Spain; and
| | - Gloria Gonzalez-Aseguinolaza
- Terapia Génica y Regulación de la Expresión Génica, Centro de Investigación Médica Aplicada, Universidad de Navarra, 31008 Pamplona, Spain; .,Instituto de Investigación Sanitaria de Navarra, 31008 Pamplona, Spain.,Laboratorio Patogénesis Microbiana, Complejo Hospitalario de Navarra-Universidad Pública de Navarra, Instituto de Investigación Sanitaria de Navarra, 31008 Pamplona, Spain; and
| | - Mirja Hommel
- Terapia Génica y Regulación de la Expresión Génica, Centro de Investigación Médica Aplicada, Universidad de Navarra, 31008 Pamplona, Spain; .,Instituto de Investigación Sanitaria de Navarra, 31008 Pamplona, Spain.,Laboratorio Patogénesis Microbiana, Complejo Hospitalario de Navarra-Universidad Pública de Navarra, Instituto de Investigación Sanitaria de Navarra, 31008 Pamplona, Spain; and
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15
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Anasagasti A, Lara-López A, Milla-Navarro S, Escudero-Arrarás L, Rodríguez-Hidalgo M, Zabaleta N, González Aseguinolaza G, de la Villa P, Ruiz-Ederra J. Inhibition of MicroRNA 6937 Delays Photoreceptor and Vision Loss in a Mouse Model of Retinitis Pigmentosa. Pharmaceutics 2020; 12:pharmaceutics12100913. [PMID: 32987664 PMCID: PMC7598722 DOI: 10.3390/pharmaceutics12100913] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2020] [Revised: 09/11/2020] [Accepted: 09/17/2020] [Indexed: 12/15/2022] Open
Abstract
Inherited retinal dystrophies (IRDs) are a group of rare retinal conditions, including retinitis pigmentosa (RP), caused by monogenic mutations in 1 out of more than 250 genes. Despite recent advancements in gene therapy, there is still a lack of an effective treatment for this group of retinal conditions. MicroRNAs (miRNAs) are a class of highly conserved small non-coding RNAs that inhibit gene expression. Control of miRNAs-mediated protein expression has been described as a widely used mechanism for post-transcriptional regulation in many physiological and pathological processes in different organs, including the retina. Our main purpose was to test the hypothesis that modulation of a group of miRNAs can protect photoreceptor cells from death in the rd10 mouse model of retinitis pigmentosa. For this, we incorporated modulators of three miRNAs in adeno-associated viruses (AAVs), which were administered through sub-retinal injections. The results obtained indicate that inhibition of the miR-6937-5p slows down the visual deterioration of rd10 mice, reflected by an increased electroretinogram (ERG) wave response under scotopic conditions and significant preservation of the outer nuclear layer thickness. This work contributes to broadening our knowledge on the molecular mechanisms underlying retinitis pigmentosa and supports the development of novel therapeutic approaches for RP based on miRNA modulation.
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Affiliation(s)
- Ander Anasagasti
- Sensorial Neurodegeneration Group, Biodonostia Health Research Institute, 20014 San Sebastian, Spain; (A.A.); (A.L.-L.); (L.E.-A.); (M.R.-H.)
- Viralgen Vector Core, 20009 San Sebastián, Spain
| | - Araceli Lara-López
- Sensorial Neurodegeneration Group, Biodonostia Health Research Institute, 20014 San Sebastian, Spain; (A.A.); (A.L.-L.); (L.E.-A.); (M.R.-H.)
| | - Santiago Milla-Navarro
- Visual Neurophysiology, IRYCIS, University of Alcala, 28801 Madrid, Spain; (S.M.-N.); (P.d.l.V.)
| | - Leire Escudero-Arrarás
- Sensorial Neurodegeneration Group, Biodonostia Health Research Institute, 20014 San Sebastian, Spain; (A.A.); (A.L.-L.); (L.E.-A.); (M.R.-H.)
| | - María Rodríguez-Hidalgo
- Sensorial Neurodegeneration Group, Biodonostia Health Research Institute, 20014 San Sebastian, Spain; (A.A.); (A.L.-L.); (L.E.-A.); (M.R.-H.)
| | - Nerea Zabaleta
- Gene Therapy and Regulation of Gene Expression Program, CIMA, FIMA, University of Navarra, Navarra Institute for Health Research (IdisNA), 31008 Pamplona, Spain; (N.Z.); (G.G.A.)
| | - Gloria González Aseguinolaza
- Gene Therapy and Regulation of Gene Expression Program, CIMA, FIMA, University of Navarra, Navarra Institute for Health Research (IdisNA), 31008 Pamplona, Spain; (N.Z.); (G.G.A.)
| | - Pedro de la Villa
- Visual Neurophysiology, IRYCIS, University of Alcala, 28801 Madrid, Spain; (S.M.-N.); (P.d.l.V.)
- RETICS OFTARED, 28040 Madrid, Spain
| | - Javier Ruiz-Ederra
- Sensorial Neurodegeneration Group, Biodonostia Health Research Institute, 20014 San Sebastian, Spain; (A.A.); (A.L.-L.); (L.E.-A.); (M.R.-H.)
- RETICS OFTARED, 28040 Madrid, Spain
- Correspondence: ; Tel.: +34-943-006128
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16
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Dudek AM, Zabaleta N, Zinn E, Pillay S, Zengel J, Porter C, Franceschini JS, Estelien R, Carette JE, Zhou GL, Vandenberghe LH. GPR108 Is a Highly Conserved AAV Entry Factor. Mol Ther 2019; 28:367-381. [PMID: 31784416 DOI: 10.1016/j.ymthe.2019.11.005] [Citation(s) in RCA: 48] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2019] [Revised: 10/26/2019] [Accepted: 11/05/2019] [Indexed: 12/19/2022] Open
Abstract
Adeno-associated virus (AAV) is a highly promising gene transfer vector, yet major cellular requirements for AAV entry are poorly understood. Using a genome-wide CRISPR screen for entry of evolutionarily divergent serotype AAVrh32.33, we identified GPR108, a member of the G protein-coupled receptor superfamily, as an AAV entry factor. Of greater than 20 divergent AAVs across all AAV clades tested in human cell lines, only AAV5 transduction was unaffected in the GPR108 knockout (KO). GPR108 dependency was further shown in murine and primary cells in vitro. These findings are further validated in vivo, as the Gpr108 KO mouse demonstrates 10- to 100-fold reduced expression for AAV8 and rh32.33 but not AAV5. Mechanistically, both GPR108 N- and C-terminal domains are required for transduction, and on the capsid, a VP1 unique domain that is not conserved on AAV5 can be transferred to confer GPR108 independence onto AAV2 chimeras. In vitro binding and fractionation studies indicate reduced nuclear import and cytosolic accumulation in the absence of GPR108. We thus have identified the second of two AAV entry factors that is conserved between mice and humans relevant both in vitro and in vivo, further providing a mechanistic understanding to the tropism of AAV gene therapy vectors.
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Affiliation(s)
- Amanda M Dudek
- Grousbeck Gene Therapy Center, Schepens Eye Research Institute, Mass Eye and Ear, Boston, MA, USA; Ocular Genomics Institute, Mass Eye and Ear, Boston, MA, USA; Department of Ophthalmology, Harvard Medical School, Boston, MA, USA
| | - Nerea Zabaleta
- Grousbeck Gene Therapy Center, Schepens Eye Research Institute, Mass Eye and Ear, Boston, MA, USA; Ocular Genomics Institute, Mass Eye and Ear, Boston, MA, USA; Department of Ophthalmology, Harvard Medical School, Boston, MA, USA
| | - Eric Zinn
- Grousbeck Gene Therapy Center, Schepens Eye Research Institute, Mass Eye and Ear, Boston, MA, USA; Ocular Genomics Institute, Mass Eye and Ear, Boston, MA, USA; Department of Ophthalmology, Harvard Medical School, Boston, MA, USA
| | - Sirika Pillay
- Department of Microbiology and Immunology, Stanford University School of Medicine, Stanford, CA, USA
| | - James Zengel
- Department of Microbiology and Immunology, Stanford University School of Medicine, Stanford, CA, USA
| | - Caryn Porter
- Center for Computational and Integrative Biology, Massachusetts General Hospital, Boston, MA, USA; Department of Genetics, Harvard Medical School, Boston, MA, USA
| | - Jennifer Santos Franceschini
- Grousbeck Gene Therapy Center, Schepens Eye Research Institute, Mass Eye and Ear, Boston, MA, USA; Ocular Genomics Institute, Mass Eye and Ear, Boston, MA, USA; Department of Ophthalmology, Harvard Medical School, Boston, MA, USA
| | - Reynette Estelien
- Grousbeck Gene Therapy Center, Schepens Eye Research Institute, Mass Eye and Ear, Boston, MA, USA; Ocular Genomics Institute, Mass Eye and Ear, Boston, MA, USA; Department of Ophthalmology, Harvard Medical School, Boston, MA, USA
| | - Jan E Carette
- Department of Microbiology and Immunology, Stanford University School of Medicine, Stanford, CA, USA
| | - Guo Ling Zhou
- Center for Computational and Integrative Biology, Massachusetts General Hospital, Boston, MA, USA; Department of Genetics, Harvard Medical School, Boston, MA, USA
| | - Luk H Vandenberghe
- Grousbeck Gene Therapy Center, Schepens Eye Research Institute, Mass Eye and Ear, Boston, MA, USA; Ocular Genomics Institute, Mass Eye and Ear, Boston, MA, USA; Department of Ophthalmology, Harvard Medical School, Boston, MA, USA; The Broad Institute of Harvard and MIT, Cambridge, MA, USA; Harvard Stem Cell Institute, Harvard University, Cambridge, MA, USA.
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17
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Zabaleta N, Hommel M, Salas D, Gonzalez-Aseguinolaza G. Genetic-Based Approaches to Inherited Metabolic Liver Diseases. Hum Gene Ther 2019; 30:1190-1203. [DOI: 10.1089/hum.2019.140] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Affiliation(s)
- Nerea Zabaleta
- Gene Therapy and Regulation of Gene Expression Program, Centro de Investigación Médica Aplicada, IDISNA, Universidad de Navarra, Pamplona, Spain
| | - Mirja Hommel
- Gene Therapy and Regulation of Gene Expression Program, Centro de Investigación Médica Aplicada, IDISNA, Universidad de Navarra, Pamplona, Spain
| | - David Salas
- Gene Therapy and Regulation of Gene Expression Program, Centro de Investigación Médica Aplicada, IDISNA, Universidad de Navarra, Pamplona, Spain
| | - Gloria Gonzalez-Aseguinolaza
- Gene Therapy and Regulation of Gene Expression Program, Centro de Investigación Médica Aplicada, IDISNA, Universidad de Navarra, Pamplona, Spain
- Vivet Therapeutics, Pamplona, Spain
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Zabaleta N, Salas D, Paramo M, Hommel M, Sier-Ferreira V, Hernandez-Alcoceba R, Prieto J, Bilbao JI, Gonzalez-Aseguinolaza G. Improvement of Adeno-Associated Virus-Mediated Liver Transduction Efficacy by Regional Administration in Macaca fascicularis. HUM GENE THER CL DEV 2017; 28:68-73. [PMID: 28285544 DOI: 10.1089/humc.2016.183] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023] Open
Abstract
The liver is a central organ in metabolism and can be affected by numerous inherited metabolic disorders. Recombinant adeno-associated virus (AAV)-based gene therapy represents a promising therapeutic approach for such diseases. AAVs have been demonstrated to be safe, and resulted in high and long-term expression in preclinical and clinical studies. However, there are still some concerns regarding the expression levels that can be achieved and the percentage of hepatocytes that can be transduced. Because of the cell-autonomous nature of most metabolic liver disorders, a high percentage of hepatocytes needs to be corrected in order to achieve a therapeutic effect. The goal of our work was to improve transduction efficacy of the liver by conveying the vector directly to hepatic tissue. Interventional radiology procedures were used to administer an AAV5 vector expressing a secreted form of human embryonic alkaline phosphatase (hSEAP) under the control of a liver-specific promoter to a clinically relevant animal model, Macaca fascicularis. Balloon occlusion of the regional hepatic venous flow was performed while injecting the vector either into the hepatic artery (HA) or, against flow, via the suprahepatic vein (SHV). In both cases the vector was injected into the right hepatic lobules, and the two routes were compared with conventional intravenous administration. Higher hSEAP levels were obtained when the vector was administered via SHV or HA than after intravenous injection. Furthermore, higher expression levels correlated with a higher number of vector genomes in the injected lobules. In conclusion, direct administration of AAV vectors via the hepatic blood flow with simultaneous balloon occlusion of the hepatic outflow increases liver transduction efficacy in comparison with systemic delivery and can be further improved in bigger animals or humans, where it would be technically feasible to inject the vector into the hepatic vasculature in the generality of lobules.
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Affiliation(s)
- Nerea Zabaleta
- 1 Gene Therapy and Regulation of Gene Expression Program, Center for Applied Medical Research, Health Research Institute of Navarra (IdisNA) , Pamplona, Spain
| | - David Salas
- 1 Gene Therapy and Regulation of Gene Expression Program, Center for Applied Medical Research, Health Research Institute of Navarra (IdisNA) , Pamplona, Spain
| | - Maria Paramo
- 2 Radiology Department, Clínica Universidad de Navarra, IdisNA, Pamplona, Spain
| | - Mirja Hommel
- 1 Gene Therapy and Regulation of Gene Expression Program, Center for Applied Medical Research, Health Research Institute of Navarra (IdisNA) , Pamplona, Spain
| | | | - Ruben Hernandez-Alcoceba
- 1 Gene Therapy and Regulation of Gene Expression Program, Center for Applied Medical Research, Health Research Institute of Navarra (IdisNA) , Pamplona, Spain
| | - Jesus Prieto
- 1 Gene Therapy and Regulation of Gene Expression Program, Center for Applied Medical Research, Health Research Institute of Navarra (IdisNA) , Pamplona, Spain
| | - Jose I Bilbao
- 2 Radiology Department, Clínica Universidad de Navarra, IdisNA, Pamplona, Spain
| | - Gloria Gonzalez-Aseguinolaza
- 1 Gene Therapy and Regulation of Gene Expression Program, Center for Applied Medical Research, Health Research Institute of Navarra (IdisNA) , Pamplona, Spain
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Salas D, Majowicz A, Zabaleta N, Rodríguez-Garcia E, Petry H, Ferreira V, Aseguinolaza GG. 310. Analysis of AAV5 Biodistribution and Viral Shedding in the Presence or Absence of Neutralizing Antibodies. Mol Ther 2016. [DOI: 10.1016/s1525-0016(16)33119-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022] Open
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Majowicz A, Salas D, Zabaleta N, Rodríguez-Garcia E, Aseguinolaza GG, Petry H, Ferreira V. 700. Successful Repeated Hepatic Gene Delivery in Mice and Non-Human Primates Achieved by Sequential Administration of AAV5 and AAV1 Vector Serotypes. Mol Ther 2016. [DOI: 10.1016/s1525-0016(16)33508-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022] Open
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Blair DJ, Zhong S, Hesse MJ, Zabaleta N, Myers EL, Aggarwal VK. Full chirality transfer in the synthesis of hindered tertiary boronic esters under in situ lithiation-borylation conditions. Chem Commun (Camb) 2016; 52:5289-92. [PMID: 27002235 DOI: 10.1039/c6cc00536e] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Hindered tertiary neopentyl glycol boronic esters can be prepared by using in situ lithiation-borylation of enantiopure secondary benzylic carbamates at -20 °C with full chirality transfer.
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Affiliation(s)
- D J Blair
- School of Chemistry, University of Bristol, Cantock's Close, Bristol, BS8 1TS, UK.
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