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Microarray expression profile and functional analysis of circular RNAs in cervical cancer

ABSTRACT: Microarray expression profile and functional analysis of circular RNAs in cervical cancer

PROVIDER: PRJNA453690 | ENA |

REPOSITORIES: ENA

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Microarray expression profile of circular RNAs in cervical cancer

Project description:Microarray expression profile of circular RNAs in cervical cancer

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Microarray expression profile and functional analysis of circular RNAs in cervical cancer

Project description:Five human cervical cancer cell lines (HeLa, CaSki, SiHa, C-33A, SW756) and one human normal cervical epithelial cell line HcerEpic were included in the study. Microarray based circRNA expression profiles were acquired using the Arraystar Human circRNA Array (8x15K, Arraystar). We identified circRNAs differentially expressed in human cervical cancer cell lines compared to human normal cervical epithelial HcerEpic cells (control).

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Microarray expression profile of circular RNAs in cervical cancer

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Circular RNAs are super abundant in cervical tumor and plasma detected by high throughput microarray [cervical_cancer_circRNA]

Project description:Circular RNAs (circRNAs) are a new class of endogenous and regulatory non-coding RNAs, but their expressions in tumor and plasma are largely unknown. Here, our study firstly suggested that microarray should be more efficient than RNA sequencing for circRNA profiling. Then, we detected ~80,000 circRNAs expressed in cervical tumors and matched normal tissues by microarray, and ~23,000 of them are differently expressed. The numbers of up- and down-regulated circRNAs during tumorigenesis are almost equal. In addition, we discovered that the expression of different circRNA isoforms from the same linear RNA also different. Strikingly, as much as ~18,000 circRNAs could be robustly detected in plasmas, and ~8,000 circRNAs show different expression after surgery of tumor removal. Altogether, taking advantage of the huge number of circRNAs detected in tumor and plasma, we provide strong evidence for circRNA expression, regulation and potential clinical application as non-invasive biomarkers.

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