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A Cohesin Subunit Variant Identified from a Peripheral Sclerocornea Pedigree
Joint Authors
Tam, Oi Sin
Pang, Chi-Pui
Chan, Tommy C. Y.
Zhang, Bi Ning
Chu, Wai Kit
Liu, Yu
Jhanji, Vishal
Chen, Lijia
Source
Issue
Vol. 2019, Issue 2019 (31 Dec. 2019), pp.1-8, 8 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2019-11-12
Country of Publication
Egypt
No. of Pages
8
Main Subjects
Abstract EN
Background.
Sclerocornea is a rare congenital disorder characterized with the opacification of the cornea.
Here, we report a nonconsanguineous Chinese family with multiple peripheral sclerocornea patients spanning across three generations inherited in an autosomal dominant manner.
Methods.
This is a retrospective case series of a peripheral sclerocornea pedigree.
Comprehensive ophthalmic examinations were conducted and assessed on 14 pedigree members.
Whole-exome sequencing was used to identify the genetic alterations in the affected pedigree members.
Lymphoblastoid cell lines (LCLs) were established using blood samples from the family members.
Functional tests were performed with these cell lines.
Results.
Six affected and eight unaffected members of a family with peripheral sclerocornea were examined.
All affected individuals showed features of scleralization over the peripheral cornea of both eyes.
Mean horizontal and vertical corneal diameter were found significantly decreased in the affected members.
Significant differences were also observed on the mean apex pachymetry between affected and unaffected subjects.
These ophthalmic parameters did not resemble that of cornea plana.
A RAD21C1348T variant was identified by whole-exome sequencing.
Although this variant causes RAD21 R450C substitution at the separase cleavage site, cells from peripheral sclerocornea family members had no mitosis and ploidy defects.
Conclusion.
We report a family of peripheral sclerocornea with no association with cornea plana.
A RAD21 variant was found cosegregating with peripheral sclerocornea.
Our results suggest that RAD21 functions, other than its cell cycle and chromosome segregation regulations, could underline the pathogenesis of peripheral sclerocornea.
American Psychological Association (APA)
Zhang, Bi Ning& Chan, Tommy C. Y.& Tam, Oi Sin& Liu, Yu& Pang, Chi-Pui& Jhanji, Vishal…[et al.]. 2019. A Cohesin Subunit Variant Identified from a Peripheral Sclerocornea Pedigree. Disease Markers،Vol. 2019, no. 2019, pp.1-8.
https://search.emarefa.net/detail/BIM-1147914
Modern Language Association (MLA)
Zhang, Bi Ning…[et al.]. A Cohesin Subunit Variant Identified from a Peripheral Sclerocornea Pedigree. Disease Markers No. 2019 (2019), pp.1-8.
https://search.emarefa.net/detail/BIM-1147914
American Medical Association (AMA)
Zhang, Bi Ning& Chan, Tommy C. Y.& Tam, Oi Sin& Liu, Yu& Pang, Chi-Pui& Jhanji, Vishal…[et al.]. A Cohesin Subunit Variant Identified from a Peripheral Sclerocornea Pedigree. Disease Markers. 2019. Vol. 2019, no. 2019, pp.1-8.
https://search.emarefa.net/detail/BIM-1147914
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1147914