Apr 18, 2020

The evaluation of miR-874 antagomiR and miR-146a toxicity in cardiomyocytes

BioRxiv : the Preprint Server for Biology
Yue ZhangJ. Wu


More and more studies have shown that microRNAs (miRNAs) play key roles in the treatment of heart failure. Studies have shown that miR-874 (miR-874) inhibitors can reduce H2O2-induced cardiomyocyte necrosis and may have a therapeutic effect on heart failure in terms of cardiomyocyte necrosis. Therefore, the purpose of this experiment is to study the other effects of miR-874 and miR-146a on the key pathways in cardiomyocytes and cardiac fibroblasts. In this study, the roles of miR-874 antagomiR and miR-146a in cardiomyocytes and cardiac fibroblasts were analyzed. we investigated the level of miR-874 expression in H9C2 cardiomyocytes after miR-874 antagomiR transfection and found that the miR-874 expression in the H9C2 cells transfected with miR-874 antagomiR group was significantly lower than that in the control group. The results showed that miR-874 was successfully knocked down by the transfection of miR-874 antagomiR. Our results demonstrated that miR-874 inhibition has no effect on the activity of Caspase-3/7 in cardiomyocytes. miR-874 antagomiR has no effect on the proliferation of cardiac fibroblasts, whereas it can inhibit the activity of caspase-8 in cardiac fibroblasts. In addition, the potential effect of miR-874 antag...Continue Reading

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Mentioned in this Paper

Genome Assembly Sequence
Malignant Neoplasms
Anchoring Procedure
Gene Mutant
Software Tools
Molecular Assembly/Self Assembly

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