MicroRNA-365 regulates human cardiac action potential duration.

MicroRNA-365 regulates human cardiac action potential duration.
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DOI:
10.1038/s41467-021-27856-7
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发表时间:
2022-01-11
影响因子:
16.6
通讯作者:
Engelhardt S
Engelhardt S
中科院分区:
综合性期刊1区
文献类型:
--
作者:
Esfandyari D;Idrissou BMG;Hennis K;Avramopoulos P;Dueck A;El-Battrawy I;Grüter L;Meier MA;Näger AC;Ramanujam D;Dorn T;Meitinger T;Hagl C;Milting H;Borggrefe M;Fenske S;Biel M;Dendorfer A;Sassi Y;Moretti A;Engelhardt S

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心室动作电位异常会导致恶性心律失常和心源性猝死。在这里,我们的目标是识别调节人类心脏动作电位的 microRNA,并询问它们的操作是否允许对动作电位异常进行治疗调节。对人心肌细胞中 microRNA 靶标组的定量分析确定 miR-365 是调节复极化离子通道的主要 microRNA。患者特异性诱导多能干细胞来源的心肌细胞的动作电位记录显示,miR-365的升高显着延长了短QT综合征患者来源的心肌细胞的动作电位持续时间,而miR-365的特异性抑制使长QT综合征心肌细胞的病理性延长的动作电位正常化。在这些细胞中进行的批量和单细胞水平的转录组分析证实了关键的心脏复极通道作为 miR-365 的直接靶标,以及该 microRNA 对其他动作电位调节基因的功能协同调节。全细胞膜片钳实验证实了复极离子电流 Iks 的 miR-365 依赖性调节。最后,人心肌切片的不应期测量证实了 miR-365 对成人心肌组织动作电位的调节作用。我们的结果描绘了 miR-365 通过针对心脏复极的关键因素来调节人类心脏动作电位持续时间。异常的心脏动作电位是不同类型心律失常的基础。在这里,作者表明 microRNA-365 通过调节关键的心脏复极化通道来调节心脏动作电位。
Abnormalities of ventricular action potential cause malignant cardiac arrhythmias and sudden cardiac death. Here, we aim to identify microRNAs that regulate the human cardiac action potential and ask whether their manipulation allows for therapeutic modulation of action potential abnormalities. Quantitative analysis of the microRNA targetomes in human cardiac myocytes identifies miR-365 as a primary microRNA to regulate repolarizing ion channels. Action potential recordings in patient-specific induced pluripotent stem cell-derived cardiac myocytes show that elevation of miR-365 significantly prolongs action potential duration in myocytes derived from a Short-QT syndrome patient, whereas specific inhibition of miR-365 normalizes pathologically prolonged action potential in Long-QT syndrome myocytes. Transcriptome analyses in these cells at bulk and single-cell level corroborate the key cardiac repolarizing channels as direct targets of miR-365, together with functionally synergistic regulation of additional action potential-regulating genes by this microRNA. Whole-cell patch-clamp experiments confirm miR-365-dependent regulation of repolarizing ionic current Iks. Finally, refractory period measurements in human myocardial slices substantiate the regulatory effect of miR-365 on action potential in adult human myocardial tissue. Our results delineate miR-365 to regulate human cardiac action potential duration by targeting key factors of cardiac repolarization. An abnormal cardiac action potential underlies different types of cardiac arrhythmias. Here the authors show that microRNA-365 regulates the cardiac action potential by modulating key cardiac repolarizing channels.
亚型特异性启动子驱动的动作电位成像,用于 hiPSC 衍生心肌细胞中的精确疾病建模和药物测试。
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发表时间: 2015-05
影响因子: 11.1
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DOI: 10.1093/bioinformatics/btp101
发表时间: 2009-04-15
期刊: Bioinformatics (Oxford, England)
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DOI: 10.1371/journal.pone.0119646
发表时间: 2015
期刊: PloS one
影响因子: 3.7
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