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RNA Pull-down Procedure to Identify RNA Targets of a Long Non-coding RNA
Published on: April 10, 2018
Circular RNA expression profile in gingival tissues identifies circ_0062491 and circ_0095812 as potential treatment
Jie Li1, Ruiyue Xie1
1Department of Stomatology, Shandong Provincial Qianfoshan Hospital, Jinan, China.
Abstract:
Circular RNAs (circRNAs) emerging as a novel class of endogenous, conserved noncoding RNAs, which have been reported to be participated in immune-inflammatory response recently, yet their function in periodontal inflammation has remained elusive. This study aimed to analyze the specific circRNAs expressed in periodontal inflammation process through Illumina (San Diego, CA) sequencing technology combining with experimental validation. The inflamed and healthy gingival tissues from patients were selected to explore the expression statues of circRNAs. In brief, 1304 dysregulated circRNAs were identified in inflamed gingival tissues. Besides, Gene Ontology (GO) enrichment analysis was conducted to investigate the functions of abnormally expressed circRNAs in periodontitis as well as their host-linear genes. Furthermore, the interaction network of circRNAs-miRNAs (microRNA) was constructed to reveal the key circRNAs (circ_0095812, circ_0120299, circ_0125699, circ_0062491, and circ_0043115) in the pathobiology of periodontitis. Subsequently, we have investigated the expression pattern of circ_0062491 (downregulated) and circ_0095812 (upregulated) among 30-paired periodontitis patients and healthy individuals by quantitative real-time polymerase chain reaction. Moreover, circ_0062491 was identified as the sponge of miR-584 which play a key role in periodontitis.
Insights
Circular RNAs (circRNAs) are newly found to play a role in periodontal inflammation. Researchers identified key circRNAs, including circ_0062491 and circ_0095812, involved in periodontitis.
Area of Science:
- Genomics
- Molecular Biology
- Immunology
Background:
- Circular RNAs (circRNAs) are novel noncoding RNAs involved in immune responses.
- The role of circRNAs in periodontal inflammation remains largely unknown.
- Periodontitis is a common inflammatory disease affecting gums and supporting bone.
Purpose of the Study:
- To identify specific circRNAs involved in periodontal inflammation.
- To explore the function and interactions of dysregulated circRNAs in periodontitis.
- To validate the expression of key circRNAs in patient samples.
Main Methods:
- Illumina sequencing of gingival tissues from periodontitis patients and healthy controls.
- Gene Ontology (GO) enrichment analysis for functional insights.
- Construction of circRNA-miRNA interaction networks.
- Quantitative real-time polymerase chain reaction (qRT-PCR) for validation.
Main Results:
- 1304 dysregulated circRNAs were identified in inflamed gingival tissues.
- Key circRNAs (circ_0095812, circ_0120299, circ_0125699, circ_0062491, circ_0043115) were highlighted in periodontitis pathobiology.
- circ_0062491 (downregulated) and circ_0095812 (upregulated) expression patterns were confirmed.
- circ_0062491 was identified as a sponge for miR-584, a key player in periodontitis.
Conclusions:
- Specific circRNAs are dysregulated in periodontal inflammation.
- circ_0062491 and circ_0095812 are potential biomarkers for periodontitis.
- The circ_0062491/miR-584 axis may be a critical pathway in periodontitis pathogenesis.
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