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Identification of miRNAs and Their targets in Colorectal Cancer (miRNA)

ABSTRACT: Identification of miRNAs and Their targets in Colorectal Cancer (miRNA)

PROVIDER: PRJNA518096 | ENA |

REPOSITORIES: ENA

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			Action	DRS
	SRR8512590.fastq.gz	Fastqsanger.gz
	SRR8512581.fastq.gz	Fastqsanger.gz
	SRR8512591.fastq.gz	Fastqsanger.gz
	SRR8512582.fastq.gz	Fastqsanger.gz
	SRR8512592.fastq.gz	Fastqsanger.gz

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Identification of miRNAs and Their targets in Colorectal Cancer (miRNA)

Project description:Background: Colorectal cancer (CRC) is one of the leading causes of cancer-related death worldwide. The roles of microRNAs (minRNAs) in mRNA destabilization and translational repression of this disease are well appreciated, their involvement in endonucleolytic cleavage of target mRNAs is poorly understood. Methods: High throughput small RNA sequencing was employed for the identification and profiling of miRNAs by six pairs of colorectal cancer tissues (CT) and their adjacent tissues (CN). GO (gene ontology) biological process analysis and KEGG (Kyoto Encyclopedia of Genes and Genomes) pathway analysis was carried out to understand the role of regulated miRNAs in CRC. Results: Using high-throughput sequencing, we identified 1409 miRNAs in the CT and CN libraries, including 81 novel miRNAs. 420 conserved and eight novel differentially expressed miRNAs (DEmiRNAs) were identified by comparing the expression levels of CT libraries with CN libraries. Conclusions: Our findings may lead to a better understanding of the novel role of miRNA in the gene regulation of CRC.

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Identification of miRNAs and Their targets in Colorectal Cancer (degradome)

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Project description:Background: Colorectal cancer (CRC) is one of the leading causes of cancer-related death worldwide. The roles of microRNAs (minRNAs) in mRNA destabilization and translational repression of this disease are well appreciated, their involvement in endonucleolytic cleavage of target mRNAs is poorly understood. Methods: Degradome sequencing was used to identify cleaved targets of some regulated miRNAs. Results: A sum of 9685 potential target genes were characterized for 268 conserved miRNAs and a total of 202 potential target genes were identified for 33 novel miRNAs by degradome sequencing. Target genes were further predicted to be involved in proteoglycans in cancer and AMPK signaling pathway. Five pairs of DEmiRNAs and directed target genes were randomly selected and their negative correlations were validated by RT-qPCR. Conclusions: A number of potential genes targeted by miRNAs were identified and endonucleolytic miRNA-directed mRNA cleavages occur in CRC. Our findings may lead to a better understanding of the novel role of miRNA in the gene regulation of CRC.

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