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Guri-Lamce I, Alrokh Y, Graham C, Maeshima R, Rognoni E, Caley M, Łaczmański Ł, Hart SL, McGrath JA, Jacków-Malinowska J. Lipid Nanoparticles Efficiently Deliver the Base Editor ABE8e for COL7A1 Correction in Dystrophic Epidermolysis Bullosa Fibroblasts In Vitro. J Invest Dermatol 2024:S0022-202X(24)00269-0. [PMID: 38583743 DOI: 10.1016/j.jid.2024.03.027] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2023] [Revised: 03/13/2024] [Accepted: 03/14/2024] [Indexed: 04/09/2024]
Affiliation(s)
- Ina Guri-Lamce
- St John's Institute of Dermatology, School of Basic & Medical Biosciences, King's College London, London, United Kingdom
| | - Yara Alrokh
- St John's Institute of Dermatology, School of Basic & Medical Biosciences, King's College London, London, United Kingdom
| | - Carina Graham
- Genetics and Genomic Medicine Department, UCL Great Ormond Street Institute of Child Health, University College London, London, United Kingdom
| | - Ruhina Maeshima
- Genetics and Genomic Medicine Department, UCL Great Ormond Street Institute of Child Health, University College London, London, United Kingdom
| | - Emanuel Rognoni
- Centre for Cell Biology and Cutaneous Research, Blizard Institute, Barts and The London School of Medicine and Dentistry, Queen Mary University of London, London, United Kingdom
| | - Matthew Caley
- Centre for Cell Biology and Cutaneous Research, Blizard Institute, Barts and The London School of Medicine and Dentistry, Queen Mary University of London, London, United Kingdom
| | - Łukasz Łaczmański
- Hirszfeld Institute of Immunology and Experimental Therapy, Polish Academy of Sciences, Wroclaw, Poland
| | - Stephen L Hart
- Genetics and Genomic Medicine Department, UCL Great Ormond Street Institute of Child Health, University College London, London, United Kingdom
| | - John A McGrath
- St John's Institute of Dermatology, School of Basic & Medical Biosciences, King's College London, London, United Kingdom
| | - Joanna Jacków-Malinowska
- St John's Institute of Dermatology, School of Basic & Medical Biosciences, King's College London, London, United Kingdom.
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Brooks IR, Alrokh Y, Kazemizadeh A, Balon K, Newby G, Liu DR, Łaczmański Ł, McGrath JA, Jacków-Malinowska J. Highly efficient biallelic correction of homozygous COL7A1 mutation using ABE8e adenine base editor. Br J Dermatol 2024; 190:583-585. [PMID: 38149684 DOI: 10.1093/bjd/ljad522] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2023] [Revised: 12/13/2023] [Accepted: 01/13/2024] [Indexed: 12/28/2023]
Abstract
Recessive dystrophic epidermolysis bullosa (RDEB) is a genetic skin disorder characterized by severe skin blistering. With no cure at present, we have pursued a gene repair approach using base editing of COL7A1. Following on from our previous report of highly efficient base editing using the novel base editor, ABE8e, here we explore the use of lipid nanoparticle (LNP)-based delivery systems instead of electroporation to effect base editing in RDEB fibroblasts and correct a missense G > A mutation. We demonstrate increasingly high editing efficiencies, averaging 90%, which vary with the ABE8e dosage. We then demonstrate the viability of topical delivery of mRNA encapsulated in an LNP. Our work underscores the translational potential of this therapeutic route for DEB.
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Affiliation(s)
- Imogen R Brooks
- St John's Institute of Dermatology, King's College London, London, UK
| | - Yara Alrokh
- St John's Institute of Dermatology, King's College London, London, UK
| | - Aidin Kazemizadeh
- St John's Institute of Dermatology, King's College London, London, UK
| | - Katarzyna Balon
- Hirszfeld Institute of Immunology and Experimental Therapy, Polish Academy of Sciences, Wroclaw, Poland
| | - Gregory 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, 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, Harvard University, Cambridge, MA, USA
| | - Łukasz Łaczmański
- Hirszfeld Institute of Immunology and Experimental Therapy, Polish Academy of Sciences, Wroclaw, Poland
| | - John A McGrath
- St John's Institute of Dermatology, King's College London, London, UK
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