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Sumer SA, Hoffmann S, Laue S, Campbell B, Raedecke K, Frajs V, Clauss S, Kääb S, Janssen JWG, Jauch A, Laugwitz KL, Dorn T, Moretti A, Rappold GA. Precise Correction of Heterozygous SHOX2 Mutations in hiPSCs Derived from Patients with Atrial Fibrillation via Genome Editing and Sib Selection. Stem Cell Reports 2020; 15:999-1013. [PMID: 32976766 PMCID: PMC7562944 DOI: 10.1016/j.stemcr.2020.08.015] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [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: 03/20/2020] [Revised: 08/27/2020] [Accepted: 08/28/2020] [Indexed: 12/18/2022] Open
Abstract
Patient-specific human induced pluripotent stem cells (hiPSCs) offer unprecedented opportunities for the investigation of multigenic disease, personalized medicine, and stem cell therapy. For heterogeneous diseases such as atrial fibrillation (AF), however, precise correction of the associated mutation is crucial. Here, we generated and corrected hiPSC lines from two AF patients carrying different heterozygous SHOX2 mutations. We developed a strategy for the scarless correction of heterozygous mutations, based on stochastic enrichment by sib selection, followed by allele quantification via digital PCR and next-generation sequencing to detect isogenic subpopulations. This allowed enriching edited cells 8- to 20-fold. The method does not require antibiotic selection or cell sorting and can be easily combined with base-and-prime editing approaches. Our strategy helps to overcome low efficiencies of homology-dependent repair in hiPSCs and facilitates the generation of isogenic control lines that represent the gold standard for modeling complex diseases in vitro.
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Affiliation(s)
- Simon Alexander Sumer
- Department of Human Molecular Genetics, Institute of Human Genetics, University of Heidelberg, 69120 Heidelberg, Baden-Wuerttemberg, Germany; DZHK (German Center for Cardiovascular Research), Partner Site Heidelberg/Mannheim, Heidelberg, Germany
| | - Sandra Hoffmann
- Department of Human Molecular Genetics, Institute of Human Genetics, University of Heidelberg, 69120 Heidelberg, Baden-Wuerttemberg, Germany; DZHK (German Center for Cardiovascular Research), Partner Site Heidelberg/Mannheim, Heidelberg, Germany
| | - Svenja Laue
- First Department of Medicine, Cardiology, Klinikum Rechts der Isar - Technical University of Munich, 81675 Munich, Bavaria, Germany; DZHK (German Center for Cardiovascular Research), Partner Site Munich, Munich, Germany
| | - Birgit Campbell
- First Department of Medicine, Cardiology, Klinikum Rechts der Isar - Technical University of Munich, 81675 Munich, Bavaria, Germany
| | - Kristin Raedecke
- Department of Human Molecular Genetics, Institute of Human Genetics, University of Heidelberg, 69120 Heidelberg, Baden-Wuerttemberg, Germany; DZHK (German Center for Cardiovascular Research), Partner Site Heidelberg/Mannheim, Heidelberg, Germany
| | - Viktoria Frajs
- Department of Human Molecular Genetics, Institute of Human Genetics, University of Heidelberg, 69120 Heidelberg, Baden-Wuerttemberg, Germany
| | - Sebastian Clauss
- DZHK (German Center for Cardiovascular Research), Partner Site Munich, Munich, Germany; Department of Medicine I, Klinikum Grosshadern, University of Munich (LMU), 81675 Munich, Bavaria, Germany
| | - Stefan Kääb
- DZHK (German Center for Cardiovascular Research), Partner Site Munich, Munich, Germany; Department of Medicine I, Klinikum Grosshadern, University of Munich (LMU), 81675 Munich, Bavaria, Germany
| | - Johannes W G Janssen
- Department of Human Genetics, Institute of Human Genetics, University of Heidelberg, 69120 Heidelberg, Baden-Wuerttemberg, Germany
| | - Anna Jauch
- Department of Human Genetics, Institute of Human Genetics, University of Heidelberg, 69120 Heidelberg, Baden-Wuerttemberg, Germany
| | - Karl-Ludwig Laugwitz
- First Department of Medicine, Cardiology, Klinikum Rechts der Isar - Technical University of Munich, 81675 Munich, Bavaria, Germany; DZHK (German Center for Cardiovascular Research), Partner Site Munich, Munich, Germany
| | - Tatjana Dorn
- First Department of Medicine, Cardiology, Klinikum Rechts der Isar - Technical University of Munich, 81675 Munich, Bavaria, Germany
| | - Alessandra Moretti
- First Department of Medicine, Cardiology, Klinikum Rechts der Isar - Technical University of Munich, 81675 Munich, Bavaria, Germany; DZHK (German Center for Cardiovascular Research), Partner Site Munich, Munich, Germany
| | - Gudrun A Rappold
- Department of Human Molecular Genetics, Institute of Human Genetics, University of Heidelberg, 69120 Heidelberg, Baden-Wuerttemberg, Germany; DZHK (German Center for Cardiovascular Research), Partner Site Heidelberg/Mannheim, Heidelberg, Germany.
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