Abstract
The International Stem Cell Initiative analyzed 125 human embryonic stem (ES) cell lines and 11 induced pluripotent stem (iPS) cell lines, from 38 laboratories worldwide, for genetic changes occurring during culture. Most lines were analyzed at an early and late passage. Single-nucleotide polymorphism (SNP) analysis revealed that they included representatives of most major ethnic groups. Most lines remained karyotypically normal, but there was a progressive tendency to acquire changes on prolonged culture, commonly affecting chromosomes 1, 12, 17 and 20. DNA methylation patterns changed haphazardly with no link to time in culture. Structural variants, determined from the SNP arrays, also appeared sporadically. No common variants related to culture were observed on chromosomes 1, 12 and 17, but a minimal amplicon in chromosome 20q11.21, including three genes expressed in human ES cells, ID1, BCL2L1 and HM13, occurred in >20% of the lines. Of these genes, BCL2L1 is a strong candidate for driving culture adaptation of ES cells.
Original language | English |
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Pages (from-to) | 1132-1144 |
Number of pages | 13 |
Journal | Nature Biotechnology |
Volume | 29 |
Issue number | 12 |
DOIs | |
State | Published - Dec 2011 |
Funding
Funders | Funder number |
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Australian Stem Cell Centre | |
CNPq/MS/DECIT | |
Departamento de Ciência e Tecnologia do Ministério da Saúde | |
Faculty of Medicine, University of New South Wales | |
Funding Program for World-Leading Innovative R&D on Science and Technology | |
Illawarra Area Health Service | |
International Stem Cell Forum | |
Ministry of Education, Science & Technology, Republic of Korea | SC-1140 |
Ministry of Science and Technology of China (863 program | 2006AA02A102 |
Mohammad Pakzad & Adeleh Taei | |
Netherlands Proteomics Consortium | T4-3 |
North West Science Fund | |
One North East Regional Developmental Agency | |
SEIAHS | 218050 |
Singapore Stem Cell Consortium | |
South Eastern Sydney | |
Stem Cell Research Center | |
National Institute of General Medical Sciences | P01GM085354 |
National Institute of General Medical Sciences | |
California Institute for Regenerative Medicine | |
Shanghai Science and Technology Development Foundation | 06DJ14001 |
Shanghai Science and Technology Development Foundation | |
Medical Research Council | |
UK-India Education and Research Initiative | |
Newcastle University | |
National Health and Medical Research Council | 568969 |
National Health and Medical Research Council | |
Agency for Science, Technology and Research | |
Department of Biotechnology, Ministry of Science and Technology, India | |
Japan Society for the Promotion of Science | |
Ministry of Education, Culture, Sports, Science and Technology | |
Schweizerischer Nationalfonds zur Förderung der Wissenschaftlichen Forschung | 4046-114410 |
Schweizerischer Nationalfonds zur Förderung der Wissenschaftlichen Forschung | |
University of New South Wales | |
Fundação de Amparo à Pesquisa do Estado de São Paulo | |
Ministerstvo Školství, Mládeže a Tělovýchovy | |
Academy of Finland | |
Ministry of Science and Technology of the People's Republic of China | 2007CB948004 |
Ministry of Science and Technology of the People's Republic of China | |
Conselho Nacional de Desenvolvimento Científico e Tecnológico | |
Vetenskapsrådet | |
Instytut Biologii Medycznej Polskiej Akademii Nauk | |
Royan Institute | |
Jawaharlal Nehru Centre for Advanced Scientific Research | |
Genome Institute of Singapore | |
Sigrid Juséliuksen Säätiö | |
National Institute of Biomedical Innovation | |
Tays | 9F217 |
Tays |