Small noncoding differentially methylated copy-number variants, including lncRNA genes, cause a lethal lung developmental disorder.

Small noncoding differentially methylated copy-number variants, including lncRNA genes, cause a lethal lung developmental disorder.
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DOI:
10.1101/gr.141887.112
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发表时间:
2013-01
期刊:
影响因子:
7
通讯作者:
Stankiewicz P
Stankiewicz P
中科院分区:
生物学1区
文献类型:
--
作者:
Szafranski P;Dharmadhikari AV;Brosens E;Gurha P;Kolodziejska KE;Zhishuo O;Dittwald P;Majewski T;Mohan KN;Chen B;Person RE;Tibboel D;de Klein A;Pinner J;Chopra M;Malcolm G;Peters G;Arbuckle S;Guiang SF 3rd;Hustead VA;Jessurun J;Hirsch R;Witte DP;Maystadt I;Sebire N;Fisher R;Langston C;Sen P;Stankiewicz P

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An unanticipated and tremendous amount of the noncoding sequence of the human genome is transcribed. Long noncoding RNAs (lncRNAs) constitute a significant fraction of non-protein-coding transcripts; however, their functions remain enigmatic. We demonstrate that deletions of a small noncoding differentially methylated region at 16q24.1, including lncRNA genes, cause a lethal lung developmental disorder, alveolar capillary dysplasia with misalignment of pulmonary veins (ACD/MPV), with parent-of-origin effects. We identify overlapping deletions 250 kb upstream of FOXF1 in nine patients with ACD/MPV that arose de novo specifically on the maternally inherited chromosome and delete lung-specific lncRNA genes. These deletions define a distant cis-regulatory region that harbors, besides lncRNA genes, also a differentially methylated CpG island, binds GLI2 depending on the methylation status of this CpG island, and physically interacts with and up-regulates the FOXF1 promoter. We suggest that lung-transcribed 16q24.1 lncRNAs may contribute to long-range regulation of FOXF1 by GLI2 and other transcription factors. Perturbation of lncRNA-mediated chromatin interactions may, in general, be responsible for position effect phenomena and potentially cause many disorders of human development.
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