2012
DOI: 10.1007/978-1-61779-794-1_17
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Array-Comparative Genomic Hybridization Characterization of Human Pluripotent Stem Cells

Abstract: During culture adaptation, human embryonic stem cells (ESCs) and induced pluripotent stem cells (iPSCs) tend to acquire chromosomal aberrations. Generally, stem cell lines are screened for large-scale chromosomal changes using low resolution karyotype analysis. Recent studies characterizing human stem cells using array-comparative genomic hybridization (aCGH) suggests most abnormalities acquired during culture are under the resolution of karyotype analysis and therefore are routinely missed. Here, we describe … Show more

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Cited by 4 publications
(2 citation statements)
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“…However, hiPSCs face unique challenges as well, including the methods used to produce them and the predicted instability. In this regard, it is well documented that hESCs tend to accumulate mutations over time in culture, including many related to oncogenes [815], and the same was predicted to be true for hiPSCs. One type of genomic change – copy number variations (CNVs) – occurs when individual cells have gain or loss of specific genes.…”
Section: The Safety Of Hipsc-based Therapiesmentioning
confidence: 98%
“…However, hiPSCs face unique challenges as well, including the methods used to produce them and the predicted instability. In this regard, it is well documented that hESCs tend to accumulate mutations over time in culture, including many related to oncogenes [815], and the same was predicted to be true for hiPSCs. One type of genomic change – copy number variations (CNVs) – occurs when individual cells have gain or loss of specific genes.…”
Section: The Safety Of Hipsc-based Therapiesmentioning
confidence: 98%
“…ISCBI guidelines (ISCBI, 2009) for release criteria of banked lines are based on best practices in clinical cytogenetics and recommend G-banding (Bickmore, 2001;Loring et al, 2007) and counting at least 20 metaphase spreads with greater than 95% of the cells confirmed to possess normal karyotype. Recent studies have employed higher resolution analyses, such as comparative genome hybridization (CGH) microarrays, single nucleotide polymorphism (SNP) arrays and whole genome sequencing (Cheng et al, 2012;Elliott et al, 2010Elliott et al, , 2012Gore et al, 2011;Hussein et al, 2011;Maitra et al, 2005;Martins-Taylor et al, 2011). Next-generation sequencing can be used to achieve nucleotide level resolution.…”
Section: B) Karyotypementioning
confidence: 99%