G(o) controls the hyperpolarization-activated current in embryonic stem cell-derived cardiocytes.
G(o) controls the hyperpolarization-activated current in embryonic stem cell-derived cardiocytes.
复制标题
G(o) 控制胚胎干细胞衍生的心肌细胞中的超极化激活电流。
DOI:
10.1152/ajpheart.00293.2007
复制
发表时间:
2008
期刊:
影响因子:
--
通讯作者:
Mortensen,RichardM
中科院分区:
文献类型:
--
作者:
Ye,ChianP;Duan,ShengZhong;Milstone,DavidS;Mortensen,RichardM
Hyperpolarization current (If) is an important player in controlling heart rate and is stimulated by cAMP and inhibited by members of the pertussis toxin-sensitive G-protein Gi/Gofamily. We have successfully derived cardiocytes from embryonic stem cells lacking Goor Gi2and Gi3. We have established that both basal and isoproterenol-stimulated activities ofIfin these cardiocytes have typical nodal-atrial characteristics and are unaffected by targeted gene inactivation of the G proteins Goor Gi2and Gi3. Under basal conditions, both Goand Giare required for muscarinic inhibition ofIfactivity via a mechanism that involves the generation of nitric oxide, whereas, with prior stimulation by β-agonists, only Gois required and Giand nitric oxide production are not. Our findings establish an essential role for Goin the antiadrenergic effect of muscarinic agent onIf.
登录
查看更多内容
影响因子:
10.8
作者:
Dario DiFrancesco
通讯作者:
Dario DiFrancesco
影响因子:
64.8
作者:
SAKMANN, B;NOMA, A;TRAUTWEIN, W
通讯作者:
TRAUTWEIN, W
影响因子:
4.5
作者:
Accili, EA;Redaelli, G;DiFrancesco, D
通讯作者:
DiFrancesco, D
影响因子:
5
作者:
B. Renaudon;P. Bois;J. Bescond;J. Lenfant
通讯作者:
J. Lenfant
DOI:
10.1073/pnas.94.9.4554
发表时间:
1997-04-29
影响因子:
11.1
作者:
Baker, K;Warren, KS;Fishman, MC
通讯作者:
Fishman, MC