A novel adenylyl cyclase type 5 inhibitor that reduces myocardial infarct size even when administered after coronary artery reperfusion.
A novel adenylyl cyclase type 5 inhibitor that reduces myocardial infarct size even when administered after coronary artery reperfusion.
复制标题
一种新型腺苷酸环化酶 5 型抑制剂,即使在冠状动脉再灌注后给药,也能减少心肌梗塞面积。
DOI:
10.1016/j.yjmcc.2018.05.014
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发表时间:
2018
影响因子:
5
通讯作者:
Vatner,StephenF
中科院分区:
文献类型:
--
作者:
Zhang,Jie;Levy,Daniel;Oydanich,Marko;Bravo,ClaudioA;Yoon,Seonghun;Vatner,DorothyE;Vatner,StephenF
We developed a novel adenylyl cyclase type 5 (AC5) inhibitor, C90, that reduces myocardial infarct size even when administered after coronary reperfusion. This is key, since it is not practical to administer a drug to a patient with myocardial infarction before revascularization, and is one reason why so many prior drugs, which reduced infarct in experimental animals, failed in clinical trials. C90 is the most potent AC5 inhibitor, as exhibited by its IC50 value for AC5 inhibition, which was 5 times lower than the next most potent AC5 inhibitor. C90 reduced cAMP in response to forskolin in wild type mice by 42%, but no longer reduced cAMP in response to forskolin in mice with disruption of AC5, indicating that the mechanism of C90 was specific for AC5 inhibition. Compared with vehicle treatment, C90 reduced infarct size by 64% at a dose of 0.6 mg/kg. Thus, C90 is a novel, selective and potent AC5 inhibitor that reduces infarct size, when delivered after coronary artery reperfusion, rendering it potentially clinically useful. It also reduces beta-adrenergic receptor signaling, which will provide additional benefit to patients with coronary artery disease or heart failure.
影响因子:
39.3
作者:
Lincoff, A. Michael;Roe, Matthew;Krucoff, Mitchell
通讯作者:
Krucoff, Mitchell