Document Detail


Small non-coding differentially-methylated copy-number variants, including lncRNA genes, cause a lethal lung developmental disorder.
MedLine Citation:
PMID:  23034409     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
An unanticipated and tremendous amount of the non-coding sequences of the human genome are transcribed. Long non-coding RNAs (lncRNAs) constitute a significant fraction of non-protein coding transcripts; however, their functions remain enigmatic. We demonstrate that deletions of a small non-coding 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 to FOXF1 in nine patients with ACD/MPV that arose de novo specifically on the maternally inherited chromosome and delete two 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 GLI and other transcription factors. Perturbation of lncRNA-mediated chromatin interactions may, in general, be responsible for position effect phenomenon and potentially cause many disorders of human development.
Authors:
Przemyslaw Szafranski; Avinash V Dharmadhikari; Erwin Brosens; Priyatansh Gurha; Katarzyna E Kolodziejska; Zhishuo Ou; Piotr Dittwald; Tadeusz Majewski; K Naga Mohan; Bo Chen; Richard Person; Dick Tibboel; Annelies de Klein; Jason Pinner; Maya Chopra; Girvan Malcolm; Gregory Peters; Susan Arbuckle; Sixto F Guiang; Virginia A Hustead; Jose Jessurun; Russel Hirsch; David P Witte; Isabelle Maystadt; Neil Sebire; Richard Fisher; Claire Langston; Partha Sen; Pawel Stankiewicz
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2012-10-3
Journal Detail:
Title:  Genome research     Volume:  -     ISSN:  1549-5469     ISO Abbreviation:  Genome Res.     Publication Date:  2012 Oct 
Date Detail:
Created Date:  2012-10-4     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9518021     Medline TA:  Genome Res     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Affiliation:
Baylor College of Medicine;
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