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The circular RNA CDR1as regulate cell proliferation via TMED2 and TMED10
Yang,Xue1,2,3; Li,Siting1,2,3; Wu,Ying1,2,3; Ge,Feng1,2,3; Chen,Ying4; Xiong,Qian1,2,3
Source PublicationBMC Cancer

AbstractBackgroundCircular RNAs (CircRNAs) are biologically active RNAs. CDR1as is one such circRNA previously reported to be a microRNA-7 (miR-7) sponge, thereby regulating associated gene expression. The specific underlying molecular mechanisms of CDR1as biology, however, remain largely unknown.MethodsWe performed CDR1as knockdown in order to explore its function in cell proliferation, migration, the cell cycle, and tumorigenesis. We further employed quantitative proteomic analyses and associated bioinformatics strategies to globally assess CDR1as-regulated proteins (CRPs). Western blotting and immunofluorescence staining were used to validate the proteomic results. We additionally investigated a specific link between TMED2, TMED10, and miR-7 via a dual-luciferase reporter system, and generated CDR1as knockout cell lines via CRISPR/Cas9 editing.ResultsWe identified 353 proteins dysregulated upon CDR1as knockdown in 293?T cells. These CRPs were found to interact with one another and to play key roles in certain cellular pathways. Two such proteins, TMED2 and TMED10, were found to specifically contribute to the influence of CDR1as on cell proliferation. CDR1as may regulate these two TMED proteins through miR-7 sponging. We were able to further confirm these results using both CRISPRi cell lines and nude mouse models.ConclusionThis study suggested that CDR1as may regulate cell proliferation via serving as a miR-7 sponge, thereby regulating TMED2 and TMED10 expression. These results are an invaluable template for future streamlined studies of circRNAs.

KeywordCircular RNAs CDR1as Quantitative proteomics TMED2 TMED10 miR-7
WOS IDBMC:10.1186/s12885-020-06794-5
PublisherBioMed Central
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Document Type期刊论文
Corresponding AuthorXiong,Qian
Affiliation1.Chinese Academy of Sciences; State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology
2.Chinese Academy of Sciences; Key Laboratory of Algal Biology, Institute of Hydrobiology
3.Graduate University of Chinese Academy of Sciences
4.Yangtze University; College of Life Science
Recommended Citation
GB/T 7714
Yang,Xue,Li,Siting,Wu,Ying,et al. The circular RNA CDR1as regulate cell proliferation via TMED2 and TMED10[J]. BMC Cancer,2020,20(1):1-12.
APA Yang,Xue,Li,Siting,Wu,Ying,Ge,Feng,Chen,Ying,&Xiong,Qian.(2020).The circular RNA CDR1as regulate cell proliferation via TMED2 and TMED10.BMC Cancer,20(1),1-12.
MLA Yang,Xue,et al."The circular RNA CDR1as regulate cell proliferation via TMED2 and TMED10".BMC Cancer 20.1(2020):1-12.
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