机构：[1]Department of Genetics, Medical College of Soochow University, Suzhou, China[2]Department of Radiotherapy & Oncology, The Second Affiliated Hospital of Soochow University, Suzhou, China[3]The Institute for Chemical Carcinogenesis, The State Key Lab of Respiratory Disease, Guangzhou Medical University, Guangzhou, China
Circular RNAs with exonic sequences represent a special form of noncoding RNAs, discovered by analyzing a handful of transcribed genes. It has been observed that circular RNAs function as microRNA sponges. In the present study, we investigated whether the expression of circular RNAs is altered during the development of esophageal squamous cell carcinoma (ESCC). Using a TaqMan-based reverse transcriptase polymerase chain reaction assay, the relationship between cir-ITCH and ESCC was analyzed in a total of 684 ESCC and paired adjacent non-tumor tissue samples from eastern and southern China. We found that cir-ITCH expression was usually low in ESCC compared to the peritumoral tissue. The functional relevance of cir-ITCH was further examined by biochemical assays. As sponge of miR-7, miR17, and miR-214, cir-ITCH might increase the level of ITCH. ITCH hyper expression promotes ubiquitination and degradation of phosphorylated Dvl2, thereby inhibiting the Wnt/beta-catenin pathway. These results indicate that cir-ITCH may have an inhibitory effect on ESCC by regulating the Wnt pathway.
基金：
This work was supported by the National Scientific Foundation of China grants 81001278, 81171895, 81472630 and 81072366; A Project Funded by the Priority Academic Program Development of Jiangsu Higher Education Institutions, Jiangsu Provincial Natural Science Foundation (No. BK2011297); Jiangsu Province Science and Technology Support Program (No. BE2012648) and the Scientific Research Foundation for the Returned Overseas Chinese Scholars, State Education Ministry (No. 20101561).
第一作者机构：[1]Department of Genetics, Medical College of Soochow University, Suzhou, China
共同第一作者：
通讯作者：
通讯机构：[1]Department of Genetics, Medical College of Soochow University, Suzhou, China
推荐引用方式(GB/T 7714)：
Li Fang,Zhang Liyuan,Li Wei,et al.Circular RNA ITCH has inhibitory effect on ESCC by suppressing the Wnt/beta-catenin pathway[J].ONCOTARGET.2015,6(8):6001-13.doi:10.18632/oncotarget.3469.
APA：
Li, Fang,Zhang, Liyuan,Li, Wei,Deng, Jieqiong,Zheng, Jian...&Zhou, Yifeng.(2015).Circular RNA ITCH has inhibitory effect on ESCC by suppressing the Wnt/beta-catenin pathway.ONCOTARGET,6,(8)
MLA：
Li, Fang,et al."Circular RNA ITCH has inhibitory effect on ESCC by suppressing the Wnt/beta-catenin pathway".ONCOTARGET 6..8(2015):6001-13
