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Baudrier L, Benamozig O, Langley J, Chopra S, Kalashnikova T, Benaoudia S, Singh G, Mahoney DJ, Wright NAM, Billon P. One-pot DTECT enables rapid and efficient capture of genetic signatures for precision genome editing and clinical diagnostics. CELL REPORTS METHODS 2024; 4:100698. [PMID: 38301655 PMCID: PMC10921016 DOI: 10.1016/j.crmeth.2024.100698] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/25/2023] [Revised: 12/05/2023] [Accepted: 01/09/2024] [Indexed: 02/03/2024]
Abstract
The detection of genomic sequences and their alterations is crucial for basic research and clinical diagnostics. However, current methodologies are costly and time-consuming and require outsourcing sample preparation, processing, and analysis to genomic companies. Here, we establish One-pot DTECT, a platform that expedites the detection of genetic signatures, only requiring a short incubation of a PCR product in an optimized one-pot mixture. One-pot DTECT enables qualitative, quantitative, and visual detection of biologically relevant variants, such as cancer mutations, and nucleotide changes introduced by prime editing and base editing into cancer cells and human primary T cells. Notably, One-pot DTECT achieves quantification accuracy for targeted genetic signatures comparable with Sanger and next-generation sequencing. Furthermore, its effectiveness as a diagnostic platform is demonstrated by successfully detecting sickle cell variants in blood and saliva samples. Altogether, One-pot DTECT offers an efficient, versatile, adaptable, and cost-effective alternative to traditional methods for detecting genomic signatures.
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Affiliation(s)
- Lou Baudrier
- The University of Calgary, Cumming School of Medicine, Department of Biochemistry and Molecular Biology, 3330 Hospital Drive NW, Calgary, AB T2N 4N1, Canada; Robson DNA Science Centre, Calgary, AB, Canada; Arnie Charbonneau Cancer Institute, Calgary, AB, Canada
| | - Orléna Benamozig
- The University of Calgary, Cumming School of Medicine, Department of Biochemistry and Molecular Biology, 3330 Hospital Drive NW, Calgary, AB T2N 4N1, Canada; Robson DNA Science Centre, Calgary, AB, Canada; Arnie Charbonneau Cancer Institute, Calgary, AB, Canada
| | - Jethro Langley
- The University of Calgary, Cumming School of Medicine, Department of Biochemistry and Molecular Biology, 3330 Hospital Drive NW, Calgary, AB T2N 4N1, Canada; Robson DNA Science Centre, Calgary, AB, Canada; Arnie Charbonneau Cancer Institute, Calgary, AB, Canada
| | - Sanchit Chopra
- The University of Calgary, Cumming School of Medicine, Department of Biochemistry and Molecular Biology, 3330 Hospital Drive NW, Calgary, AB T2N 4N1, Canada; Robson DNA Science Centre, Calgary, AB, Canada; Arnie Charbonneau Cancer Institute, Calgary, AB, Canada
| | - Tatiana Kalashnikova
- Alberta Children's Hospital Research Institute, Calgary, AB, Canada; The University of Calgary, Cumming School of Medicine, Department of Pediatrics, 28 Oki Drive NW, Calgary, AB T3B 6A8, Canada
| | - Sacha Benaoudia
- Arnie Charbonneau Cancer Institute, Calgary, AB, Canada; Alberta Children's Hospital Research Institute, Calgary, AB, Canada
| | - Gurpreet Singh
- Alberta Children's Hospital Research Institute, Calgary, AB, Canada; The University of Calgary, Cumming School of Medicine, Department of Pediatrics, 28 Oki Drive NW, Calgary, AB T3B 6A8, Canada
| | - Douglas J Mahoney
- The University of Calgary, Cumming School of Medicine, Department of Biochemistry and Molecular Biology, 3330 Hospital Drive NW, Calgary, AB T2N 4N1, Canada; Arnie Charbonneau Cancer Institute, Calgary, AB, Canada; Alberta Children's Hospital Research Institute, Calgary, AB, Canada; Snyder Institute for Chronic Disease, Calgary, AB, Canada; Department of Microbiology, Immunology and Infectious Disease, Calgary, AB, Canada
| | - Nicola A M Wright
- Alberta Children's Hospital Research Institute, Calgary, AB, Canada; The University of Calgary, Cumming School of Medicine, Department of Pediatrics, 28 Oki Drive NW, Calgary, AB T3B 6A8, Canada
| | - Pierre Billon
- The University of Calgary, Cumming School of Medicine, Department of Biochemistry and Molecular Biology, 3330 Hospital Drive NW, Calgary, AB T2N 4N1, Canada; Robson DNA Science Centre, Calgary, AB, Canada; Arnie Charbonneau Cancer Institute, Calgary, AB, Canada.
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Nambiar TS, Baudrier L, Billon P, Ciccia A. CRISPR-based genome editing through the lens of DNA repair. Mol Cell 2022; 82:348-388. [PMID: 35063100 PMCID: PMC8887926 DOI: 10.1016/j.molcel.2021.12.026] [Citation(s) in RCA: 63] [Impact Index Per Article: 31.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2021] [Revised: 12/18/2021] [Accepted: 12/20/2021] [Indexed: 01/22/2023]
Abstract
Genome editing technologies operate by inducing site-specific DNA perturbations that are resolved by cellular DNA repair pathways. Products of genome editors include DNA breaks generated by CRISPR-associated nucleases, base modifications induced by base editors, DNA flaps created by prime editors, and integration intermediates formed by site-specific recombinases and transposases associated with CRISPR systems. Here, we discuss the cellular processes that repair CRISPR-generated DNA lesions and describe strategies to obtain desirable genomic changes through modulation of DNA repair pathways. Advances in our understanding of the DNA repair circuitry, in conjunction with the rapid development of innovative genome editing technologies, promise to greatly enhance our ability to improve food production, combat environmental pollution, develop cell-based therapies, and cure genetic and infectious diseases.
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Affiliation(s)
- Tarun S. Nambiar
- Department of Genetics and Development, Herbert Irving Comprehensive Cancer Center, Columbia University Irving Medical Center, New York, NY 10032
| | - Lou Baudrier
- Department of Biochemistry and Molecular Biology, Robson DNA Science Centre, Arnie Charbonneau Cancer Institute, Cumming School of Medicine, University of Calgary, 3330 Hospital Drive N. W., Calgary, Alberta T2N 4N1, Canada
| | - Pierre Billon
- Department of Biochemistry and Molecular Biology, Robson DNA Science Centre, Arnie Charbonneau Cancer Institute, Cumming School of Medicine, University of Calgary, 3330 Hospital Drive N. W., Calgary, Alberta T2N 4N1, Canada,Corresponding authors: ,
| | - Alberto Ciccia
- Department of Genetics and Development, Herbert Irving Comprehensive Cancer Center, Columbia University Irving Medical Center, New York, NY 10032,Lead Contact,Corresponding authors: ,
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