Abstract:
:Heterozygous point mutations or deletions of the NKX2-1 gene cause benign hereditary chorea (BHC) or a various combinations of primary hypothyroidism, respiratory distress and neurological disorders. Deletions proximal to, but not encompassing, NKX2-1 have been described in few subjects with brain-lung-thyroid syndrome. We report on a three-generation Italian family, with 6 subjects presenting BHC and harboring a genomic deletion adjacent to NKX2-1 and including the gene MBIP, recently proposed to be relevant for the pathogenesis of brain-lung-thyroid syndrome. We observed a clear reduction of NKX2-1 transcript levels in fibroblasts from our patients compared to controls; this finding suggests that MBIP deletion affects NKX2-1 expression, mimicking haploinsufficiency caused by classical NKX2-1 related mutations.
journal_name
Eur J Med Genetjournal_title
European journal of medical geneticsauthors
Invernizzi F,Zorzi G,Legati A,Coppola G,D'Adamo P,Nardocci N,Garavaglia B,Ghezzi Ddoi
10.1016/j.ejmg.2018.03.011subject
Has Abstractpub_date
2018-10-01 00:00:00pages
581-584issue
10eissn
1769-7212issn
1878-0849pii
S1769-7212(17)30765-6journal_volume
61pub_type
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