Abstract:
BACKGROUND:Osteogenesis imperfecta (OI) is a clinically heterogeneous disease characterized by extreme skeletal fragility. It is caused by mutations in genes frequently affecting collagen biosynthesis. Mutations in CREB3L1 encoding the ER stress transducer OASIS are very rare and are only reported in pediatric patients. We report a large family with a novel CREB3L1 mutation, with severe adult clinical presentation. METHODS:Clinical examination was performed on the family members. Next generation sequencing was performed for the causative genes for OI. The mutation was confirmed in other family members with Sanger sequencing. RESULTS:A novel homozygous mutation in CREB3L1 was identified in the three affected patients. The parents and siblings who carry the mutation in heterozygous state were clinically unaffected. The three affected siblings, who were reported to have been born healthy, presented very severe progressive skeletal malformations and joint contractures but absence of common OI characteristics including blue sclerae, deafness, and dentinogenesis imperfecta. Resorption of a part of the humerus presumably associated with fracture nonunion and pseudarthrosis. CONCLUSION:We report a novel homozygous CREB3L1 mutation in a large Indonesian family; the homozygous affected members have survived to adulthood and they present a more severe phenotype than previously reported, expanding the clinical spectrum of OI for this gene.
journal_name
Mol Genet Genomic Medjournal_title
Molecular genetics & genomic medicineauthors
Cayami FK,Maugeri A,Treurniet S,Setijowati ED,Teunissen BP,Eekhoff EMW,Pals G,Faradz SM,Micha Ddoi
10.1002/mgg3.823subject
Has Abstractpub_date
2019-08-01 00:00:00pages
e823issue
8issn
2324-9269journal_volume
7pub_type
杂志文章abstract:BACKGROUND:Chromosome 22q11.2 is susceptible to genomic rearrangements and the most frequently reported involve deletions and duplications between low copy repeats LCR22A to LCR22D. Atypical nested deletions and duplications are rarer and can provide a valuable opportunity to investigate the dosage effects of a smaller...
journal_title:Molecular genetics & genomic medicine
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更新日期:2018-04-17 00:00:00
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pub_type: 临床试验,杂志文章,多中心研究
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pub_type: 杂志文章
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pub_type: 杂志文章
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更新日期:2020-09-01 00:00:00
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journal_title:Molecular genetics & genomic medicine
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更新日期:2020-10-01 00:00:00