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Generation of the iPSC line CUIMCi003-A derived from a patient with severe early onset obesity.

ABSTRACT: Aryl hydrocarbon receptor nuclear translocator 2 (ARNT2) is a basic helix-loop-helix (bHLH/PAS) transcription factor involved in the development of paraventricular nucleus of the hypothalamus (PVH) through the heterodimerization with Single-minded 1 (SIM1) (Michaud et al., 2000). Using a Sendai virus-based approach, the four reprogramming factors OCT3/4, SOX2, KLF4 and C-MYC were delivered into Peripheral Blood Mononuclear Cell (PBMCs) from a 14-year-old girl with early onset obesity carrying a de novo variant (p.P130A) in ARNT2. The resulting iPSC line CUIMCi003-A had a normal karyotype, showed pluripotency and three germ layer differentiation capacity in vitro and was heterozygous for the de novo ARNT2 variant.

SUBMITTER: Iannello G

PROVIDER: S-EPMC8340056 | biostudies-literature | 2021 Jul

REPOSITORIES: biostudies-literature

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Generation of the iPSC line CUIMCi003-A derived from a patient with severe early onset obesity.

Iannello Grazia G Patel Achchhe A Sirabella Dario D Corneo Barbara B Thaker Vidhu V

Stem cell research 20210621

Aryl hydrocarbon receptor nuclear translocator 2 (ARNT2) is a basic helix-loop-helix (bHLH/PAS) transcription factor involved in the development of paraventricular nucleus of the hypothalamus (PVH) through the heterodimerization with Single-minded 1 (SIM1) (Michaud et al., 2000). Using a Sendai virus-based approach, the four reprogramming factors OCT3/4, SOX2, KLF4 and C-MYC were delivered into Peripheral Blood Mononuclear Cell (PBMCs) from a 14-year-old girl with early onset obesity carrying a ...[more]

PMID: 34214899

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Project description:The CRISPR system is an adaptive defense mechanism used by bacteria and archaea against viruses and plasmids. The discovery of the CRISPR-associated protein Cas9 and its RNA-guided cleavage mechanism marked the beginning of a new era in genomic engineering by enabling the editing of a target region in the genome. Gene-edited cells or mice can be used as models for understanding human diseases. Given its high impact in functional genomic experiments on different model systems, several CRISPR/Cas9 protocols have been generated in the past years. The technique uses a straightforward "cut and stitch" mechanism, but requires an accurate step-by-step design. One of the key points is the use of an efficient programmable guide RNA to increase the rate of success in obtaining gene-specific edited clones. Here, we describe an efficient editing protocol using a ribonucleotide protein (RNP) complex for homology-directed repair (HDR)-based correction of a point mutation in an induced pluripotent stem cell (iPSC) line generated from a 14-year-old patient with severe early-onset obesity carrying a de novo variant of ARNT2. The resulting isogenic iPSC line, named CUIMCi003-A-1, has a normal karyotype, expresses stemness markers, and can be differentiated into progenies from all three germ layers. We provide a detailed workflow for designing a single guide RNA and donor DNA, and for isolating clonal human iPSCs edited with the desired modification. This article also focuses on parameters to consider when selecting reagents for CRISPR/Cas9 gene editing after testing their efficiency with in silico tools. © 2022 The Authors. Current Protocols published by Wiley Periodicals LLC. Basic Protocol 1: Design of sgRNAs and PCR primers Basic Protocol 2: Testing the efficiency of sgRNAs Basic Protocol 3: Design of template or donor DNA Basic Protocol 4: Targeted gene editing Basic Protocol 5: Selection of positive clones Basic Protocol 6: Freezing, thawing, and expansion of cells Basic Protocol 7: Characterization of edited cell lines.

Dataset Information

Generation of the iPSC line CUIMCi003-A derived from a patient with severe early onset obesity.

Publications

Generation of the iPSC line CUIMCi003-A derived from a patient with severe early onset obesity.

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