2013
DOI: 10.1101/gad.227132.113
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Repurposing CRISPR/Cas9 for in situ functional assays

Abstract: RNAi combined with next-generation sequencing has proven to be a powerful and cost-effective genetic screening platform in mammalian cells. Still, this technology has its limitations and is incompatible with in situ mutagenesis screens on a genome-wide scale. Using p53 as a proof-of-principle target, we readapted the CRISPR (clustered regularly interspaced short palindromic repeats)/Cas9 (CRISPR associated 9) genome-editing system to demonstrate the feasibility of this methodology for targeted gene disruption … Show more

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Cited by 120 publications
(108 citation statements)
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“…TP53 emerged as a top candidate in our analyses, an expected result that supports our analytic approach. TP53 mutations are associated with RCHOP resistance and are selected for by DNA-damaging agents (44,45). The novelty here is that we demonstrate examples of mutant VAF for TP53 exceeding 50% in rrDLBCL, suggesting a tendency towards loss of the wild-type allele under the selective pressure of immunochemotherapy.…”
Section: Discussionmentioning
confidence: 73%
“…TP53 emerged as a top candidate in our analyses, an expected result that supports our analytic approach. TP53 mutations are associated with RCHOP resistance and are selected for by DNA-damaging agents (44,45). The novelty here is that we demonstrate examples of mutant VAF for TP53 exceeding 50% in rrDLBCL, suggesting a tendency towards loss of the wild-type allele under the selective pressure of immunochemotherapy.…”
Section: Discussionmentioning
confidence: 73%
“…Genomic PCR analysis of this line indicated the presence of at least two mutated eIF4AII alleles harboring intragenic deletions, whereas RT-PCR analysis indicated the presence of three truncated mRNA transcripts. Deletion Δ1 is a 109 bp deletion that is within the size range usually obtained using the CRISPR/ Cas9-editing system (Mali et al 2013;Malina et al 2013). The serendipitous mispriming event with primers 4AIIext, however, uncovered a larger intragenic deletion, Δ2 (Fig.…”
Section: Discussionmentioning
confidence: 99%
“…82 Bu grubun çalışmasında metastatik akciğer kanserli bir hastanın kanından elde edilen lenfositlerde PD-1 (Programmed cell death protein-1) geni çıkartıldıktan sonra kültür ortamında çoğaltılan hücreler enjeksiyonla hastaya geri verilmiştir Hematolojik kanserlerde yapılan farklı çalış-malarda Arf -/-Eµ-Myc lenfoma farelerde tümör baskılayıcı p53 geninde mutasyonlar oluşturul-duğu ve mixed-lineage leukemia 3 (MLL3) tümör baskılayıcı geninin CRISPR aracılığıyla bozulduğu bildirilmiştir. 83,84 Heckl ve ark., fare hematopoetik kök progenitör hücrelerde yaptıkları CRISPR temelli genom düzenleme çalışmaları ile hızlı bir şe-kilde akut miyeloid lösemi geliştirebildiklerini göstermiştir. 85 Prostat kanseri hücre serisinde (DU145) NANOG ve NANOGP8 genlerinin CRISPR/Cas9 ile çıkartılması, hücrelerin tümöri-jenik potansiyellerini önemli ölçüde zayıflatmış, ayrıca küre formasyonu, göç yeteneği, ilaç direnci gibi malignite ile ilişkili in vitro fenotipik özellik-lerin azalmasını sağlamıştır.…”
Section: Kanserde Crispr Uygulamalariunclassified