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Microarray expression profile of circular RNAs in cervical cancer

ABSTRACT: Microarray expression profile of circular RNAs in cervical cancer

PROVIDER: PRJNA614955 | ENA |

REPOSITORIES: ENA

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

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

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Circular RNA profile of human cervical squamous cell carcinoma

Project description:Circular RNAs (circRNAs) represent a widespread class of non-coding RNAs, which drew little attention in the past. Recently, limited data showed their promising future to act as biomarkers in human cancer, but the characteristics and functions remain largely unknown in human cervical cancer. In this study, we demonstrated the expression profile of circRNAs in cervical squamous cell carcinoma(SCC) patients with circRNA microarray, and identified a large number of circRNAs possibly expressed in SCC.

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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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