Mosaic copy number variation in human neurons.
Mosaic copy number variation in human neurons.
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DOI:
10.1126/science.1243472
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发表时间:
2013-11-01
期刊:
影响因子:
--
通讯作者:
Gage FH
中科院分区:
文献类型:
--
作者:
McConnell MJ;Lindberg MR;Brennand KJ;Piper JC;Voet T;Cowing-Zitron C;Shumilina S;Lasken RS;Vermeesch JR;Hall IM;Gage FH
We used single cell genomic approaches to map DNA copy number variation (CNV) in neurons obtained from human induced pluripotent stem cell (hiPSC) lines and post-mortem human brains. We identified aneuploid neurons as well as numerous subchromosomal CNVs in euploid neurons. Neurotypic hiPSC-derived neurons had larger CNVs than fibroblasts, and several large deletions were found in hiPSC-derived neurons but not in matched neural progenitor cells. Single cell sequencing of endogenous human frontal cortex neurons revealed that 13%-41% of neurons have at least one megabase-scale de novo CNV, that deletions are twice as common as duplications, and that a subset of neurons have highly aberrant genomes marked by multiple alterations. Our results show that mosaic copy number variation is abundant in human neurons.
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