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Abstract Title:

The regulated profile of noncoding RNAs associated with inflammation by tanshinone IIA on atherosclerosis.

Abstract Source:

J Leukoc Biol. 2020 Apr 26. Epub 2020 Apr 26. PMID: 32337768

Abstract Author(s):

Wenna Chen, Shengnan Guo, Ximing Li, Nan Song, Dan Wang, Rui Yu

Article Affiliation:

Wenna Chen

Abstract:

Atherosclerosis (AS) is the principal cause of heart attack, sudden cardiac death, stroke, and necrosis of the extremities, in which significant changes in gene expression associated with inflammation are found. However, the molecular mechanisms of AS are not clearly elucidated. In this study, ApoEmice were fed with a high fat diet for 12 weeks to induce atherosclerosis and half of the mice were treated with tanshinone IIA (TAN). Then sequencing analysis was performed to investigate the expression patterns of ncRNAs in AS plaques obtained from mice treated with TAN and AS Model mice. A total of 22 long noncoding RNAs (lncRNAs), 74microRNAs (miRNAs), 13 circular RNAs (circRNAs), and 1359 mRNAs in AS plaque were more significantly regulated from TAN mice, compared with model mice. Bioinformatics tools and databases were employed to investigate the potential ncRNA functions and their interaction. Our data showed that the most significantly pathways regulated by TAN were associated with inflammation, and involved in the signaling pathways of Ras, Rap1, MAPK, cAMP, T cell receptor, and so on. In addition, the competitive endogenous RNA (ceRNA) network had been constructed and the core nodes included circ-Tns3/let-7d-5p/Ctsl, circ-Wdr91/miR-378a-5p/Msr1, and circ-Cd84/ miR-30c/ Tlr2. The DERNAs were validated by quantitative RT-PCR and dual luminescence reporter assay in RAW264.7 cells in vitro. This study identified ceRNAs network regulated by TAN and elucidated the ncRNAs profile and signal pathways to attenuate AS comprehensively. This research would contribute to further research on the pathogenesis of AS, and facilitate the development of novel therapeutics targeting ncRNAs.

Study Type : Animal Study

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