Elimination of unaltered DNA in mixed clinical samples via nuclease-assisted minor-allele enrichment.
Elimination of unaltered DNA in mixed clinical samples via nuclease-assisted minor-allele enrichment.
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DOI:
10.1093/nar/gkw650
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发表时间:
2016-11-02
影响因子:
14.9
通讯作者:
Makrigiorgos GM
中科院分区:
文献类型:
--
作者:
Song C;Liu Y;Fontana R;Makrigiorgos A;Mamon H;Kulke MH;Makrigiorgos GM
Presence of excess unaltered, wild-type (WT) DNA providing no information of biological or clinical value often masks rare alterations containing diagnostic or therapeutic clues in cancer, prenatal diagnosis, infectious diseases or organ transplantation. With the surge of high-throughput technologies there is a growing demand for removing unaltered DNA over large pools-of-sequences. Here we present nuclease-assisted minor-allele enrichment with probe-overlap (NaME-PrO), a single-step approach with broad genome coverage that can remove WT-DNA from numerous sequences simultaneously, prior to genomic analysis. NaME-PrO employs a double-strand-DNA-specific nuclease and overlapping oligonucleotide-probes interrogating WT-DNA targets and guiding nuclease digestion to these sites. Mutation-containing DNA creates probe-DNA mismatches that inhibit digestion, thus subsequent DNA-amplification magnifies DNA-alterations at all selected targets. We demonstrate several-hundred-fold mutation enrichment in diverse human samples on multiple clinically relevant targets including tumor samples and circulating DNA in 50-plex reactions. Enrichment enables routine mutation detection at 0.01% abundance while by adjusting conditions it is possible to sequence mutations down to 0.00003% abundance, or to scan tumor-suppressor genes for rare mutations. NaME-PrO introduces a simple and highly parallel process to remove un-informative DNA sequences and unmask clinically and biologically useful alterations.
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影响因子:
3.9
作者:
Li, Jin;Milbury, Coren A.;Li, Cheng;Makrigiorgos, G. Mike
通讯作者:
Makrigiorgos, G. Mike
影响因子:
9.3
作者:
Milbury CA;Li J;Makrigiorgos GM
通讯作者:
Makrigiorgos GM
影响因子:
14.9
作者:
Gregory MT;Bertout JA;Ericson NG;Taylor SD;Mukherjee R;Robins HS;Drescher CW;Bielas JH
通讯作者:
Bielas JH
影响因子:
64.8
作者:
通讯作者:
--
影响因子:
14.9
作者:
HALIASSOS, A;CHOMEL, JC;KITZIS, A
通讯作者:
KITZIS, A