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Valley, Hillary C.; Bukis, Katherine M.; Bell, Alisa; Cheng, Yi; Wong, Eric; Jordan, Nikole J.; Allaire, Normand E.; Sivachenko, Andrey; Liang, Feng; Bihler, Hermann; Thomas, Philip J.; Mahiou, Jerome; Mense, Martin
Journal of cystic fibrosis, July 2019, 2019-07-00, 20190701, Letnik: 18, Številka: 4Journal Article
Assessment of approved drugs and developmental drug candidates for rare cystic fibrosis (CF)-causing variants of the Cystic Fibrosis Transmembrane Conductance Regulator (CFTR) requires abundant material from relevant models. Isogenic cell lines harboring CFTR variants in the native genomic context were created through the development and utilization of a footprint-less, CRISPR/Cas9 gene editing pipeline in 16HBE14o- immortalized bronchial epithelial cells. Isogenic, homozygous cell lines for three CFTR variants (F508del and the two most common CF-causing nonsense variants, G542X and W1282X) were established and characterized. The F508del model recapitulates the known molecular pathology and pharmacology. The two models of nonsense variants (G542X and W1282X) are sensitive to Nonsense Mediated mRNA Decay (NMD) and responsive to reference compounds that inhibit NMD and promote ribosomal readthrough. We present a versatile, efficient gene editing pipeline that can be used to create CFTR variants in the native genomic context and the utilization of this pipeline to create homozygous cell models for the CF-causing variants F508del, G542X, and W1282X. The resulting cell lines provide a virtually unlimited source of material with specific pathogenic mutations that can be used in a variety of assays, including functional assays. •A gene editing pipeline was developed to model CFTR variants in the genomic context.•The model of F508del/M470 responds to known pharmacological agents.•The G542X and W1282X models recapitulate non-sense mediated mRNA decay.•The G542X and W1282X models are sensitive to small molecule induced read-through.
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JCR | SNIP | JCR | SNIP | JCR | SNIP | JCR | SNIP |
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Vir: Osebne bibliografije
in: SICRIS
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