ArticleJournal of thoracic disease2022
Effect of high-throughput screening of circRNA01724 on a rat model of myocardial ischemia ventricular arrhythmia.
Article in Journal of thoracic disease, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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1 citing paper in PubMed, 4 citations in OpenAlex.
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Authors and funding
10 authors at 3 institutions in 1 country.
Funding
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Abstract
Background: It is considered that circRNA can participate in regulating the occurrence and effects of ventricular arrhythmia (VA) through competing endogenous RNA (ceRNA) mechanism, regulating pre-mRNA and regulating parental gene expression. Therefore, we used animal modeling and high-throughput differential screening to screen out circRNA related to VA and study its possible mechanism of action on VA. Methods: The rat model of myocardial ischemia VA was established. High-throughput screening of the differentiated circRNA was conducted and verified by real-time quantitative polymerase chain reaction (qRT-PCR) and Western blot. Lv-circRNA01724 lentivirus was constructed using molecular biology. Primary isolation of the rat cardiomyocytes, hypoxia modeling, Lv-circRNA01724 transfection, mode of action verification, and dual luciferase detection of circRNA01724 and miR-323-5p was performed. Results: Through qRT-PCR verification of circRNA01724, circRNA02230, circRNA02088, miR-323-5p, miR-330-5p, and miR-324-3p expressions, circRNA01724 was selected as the research object. Detection by Western blot showed significantly lower Cx43, ZO-1, and α-catenin expressions in rat myocardial tissue in the model group compared with the control group at 1, 7, 14, and 28 days old. On identification of the isolated primary rat cardiomyocytes by immunofluorescence, the α-SMA characteristic protein expression indicated that the isolation was successful. Verification of rat cardiomyocytes transfected with Lv-circRNA01724 suggested overexpression in cells. The miR-323-5p was also highly expressed in the rat cardiomyocyte hypoxia model following Lv-circRNA01724 transfection. Detection by flow cytometry showed that modeling of the transfected Lv-circRNA01724 had a significant increased apoptotic rate. Detection by Western blot showed that modeling of the transfected Lv-circRNA01724 cells had significantly decreased Cx43, ZO-1, and α-catenin compared with the model group. Conclusions: High-throughput screening of circRNA01724 can promote the apoptosis of hypoxic cardiomyocytes, which is related to the rat model of myocardial ischemia VA and may be a potential target for the treatment of VA.
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