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Please use this identifier to cite or link to this item:
http://ir.nhri.org.tw/handle/3990099045/9535
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| Title: | Haploinsufficiency of RCBTB1 is associated with coats disease and familial exudative vitreoretinopathy |
| Authors: | Wu, JH;Liu, JH;Ko, YC;Wang, CT;Chung, YC;Chu, KC;Liu, TT;Chao, HM;Jiang, YJ;Chen, SJ;Chung, MY |
| Contributors: | Institute of Molecular and Genomic Medicine |
| Abstract: | Familial exudative vitreoretinopathy (FEVR) belongs to a group of genetically and clinically heterogeneous disorders in retinal vascular development. To date, in approximately 50% of patients with FEVR, pathogenic mutations have been detected in FZD4, LRP5, TSPAN12, NDP, and ZNF408. In this study, we identified two heterozygous frameshift mutations in RCBTB1 from three Taiwanese cases through exome sequencing. In patient-derived lymphoblastoid cell lines (LCLs), the protein level of RCBTB1 is approximately half that of unaffected control LCLs, which is indicative of a haploinsufficiency mechanism. By employing transient transfection and reporter assays for the transcriptional activity of beta-catenin, we demonstrated that RCBTB1 participates in the Norrin/FZD4 signaling pathway and that knockdown of RCBTB1 by shRNA significantly reduced nuclear accumulation of pound]-catenin under Norrin and Wnt3a treatments. Furthermore, transgenic fli1:EGFP zebrafish with rcbtb1 knockdown exhibited anomalies in intersegmental and intraocular vessels. These results strongly support that reduced RCBTB1 expression may lead to defects in angiogenesis through the Norrin-dependent Wnt pathway, and that RCBTB1 is a putative genetic cause of vitreoretinopathies. |
| Date: | 2016-04 |
| Relation: | Human Molecular Genetics. 2016 Apr;25(8):1637-1647. |
| Link to: | http://dx.doi.org/10.1093/hmg/ddw041 |
| JIF/Ranking 2023: | http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=NHRI&SrcApp=NHRI_IR&KeyISSN=0964-6906&DestApp=IC2JCR |
| Cited Times(WOS): | https://www.webofscience.com/wos/woscc/full-record/WOS:000374231400014 |
| Cited Times(Scopus): | http://www.scopus.com/inward/record.url?partnerID=HzOxMe3b&scp=84963752860 |
| Appears in Collections: | [江運金] 期刊論文
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| PUB26908610.pdf | | 1353Kb | Adobe PDF | 560 | View/Open |
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