APJ acts as a dual receptor in cardiac hypertrophy.
APJ acts as a dual receptor in cardiac hypertrophy.
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APJ充当心脏肥大中的双重受体。
DOI:
10.1038/nature11263
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发表时间:
2012-08-16
期刊:
影响因子:
64.8
通讯作者:
Ruiz-Lozano, Pilar
中科院分区:
文献类型:
--
作者:
Scimia, Maria Cecilia;Hurtado, Cecilia;Ray, Saugata;Metzler, Scott;Wei, Ke;Wang, Jianming;Woods, Chris E.;Purcell, Nicole H.;Catalucci, Daniele;Akasaka, Takeshi;Bueno, Orlando F.;Vlasuk, George P.;Kaliman, Perla;Bodmer, Rolf;Smith, Layton H.;Ashley, Euan;Mercola, Mark;Brown, Joan Heller;Ruiz-Lozano, Pilar
Cardiac hypertrophy is initiated as an adaptive response to sustained overload but progresses pathologically as heart failure ensues. Here we report that genetic loss of APJ confers resistance to chronic pressure overload by dramatically reducing myocardial hypertrophy and heart failure. In contrast, mice lacking apelin (the endogenous APJ ligand) remain sensitive, suggesting an apelin independent function of APJ. Freshly isolated APJ-null cardiomyocytes exhibit an attenuated response to stretch, indicating that APJ is a mechano-sensor. Activation of APJ by stretch increases cardiomyocyte cell size and induces molecular markers of hypertrophy. Whereas apelin stimulates APJ to activate Gαi and elicits a protective response, stretch signals in an APJ-dependent G-protein-independent fashion to induce hypertrophy. Stretch-mediated hypertrophy is prevented by knockdown of β-arrestins or by pharmacological doses of apelin acting through Gαi. Taken together, our data indicate that APJ is a bifunctional receptor for both mechanical stretch and for the endogenous peptide apelin. By sensing the balance between these stimuli, APJ occupies a pivotal point linking sustained overload to cardiomyocyte hypertrophy.
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影响因子:
20.1
作者:
Iribe G;Ward CW;Camelliti P;Bollensdorff C;Mason F;Burton RA;Garny A;Morphew MK;Hoenger A;Lederer WJ;Kohl P
通讯作者:
Kohl P
DOI:
10.1006/bbrc.1998.9489
发表时间:
1998-10-20
影响因子:
3.1
作者:
Tatemoto, K;Hosoya, M;Fujino, M
通讯作者:
Fujino, M
影响因子:
11.8
作者:
Scott, Ian C.;Masri, Bernard;Stainier, Didier Y. R.
通讯作者:
Stainier, Didier Y. R.
影响因子:
37.8
作者:
Magga, J;Vuolteenaho, O;Ruskoaho, H
通讯作者:
Ruskoaho, H
DOI:
10.1046/j.1365-201x.2001.00884.x
发表时间:
2001-09-01
期刊:
ACTA PHYSIOLOGICA SCANDINAVICA
影响因子:
--
作者:
Rapacciuolo, A;Esposito, G;Rockman, HA
通讯作者:
Rockman, HA