Myocardial-specific R-spondin3 drives proliferation of the coronary stems primarily through the Leucine Rich Repeat G Protein coupled receptor LGR4.
Myocardial-specific R-spondin3 drives proliferation of the coronary stems primarily through the Leucine Rich Repeat G Protein coupled receptor LGR4.
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DOI:
10.1016/j.ydbio.2018.05.024
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发表时间:
2018-09-01
影响因子:
2.7
通讯作者:
Schedl A
中科院分区:
文献类型:
--
作者:
Da Silva F;Massa F;Motamedi FJ;Vidal V;Rocha AS;Gregoire EP;Cai CL;Wagner KD;Schedl A
Coronary artery anomalies are common congenital disorders with serious consequences in adult life. Coronary circulation begins when the coronary stems form connections between the aorta and the developing vascular plexus. We recently identified the WNT signaling modulator R-spondin 3 (Rspo3), as a crucial regulator of coronary stem proliferation. Using expression analysis and tissue-specific deletion we now demonstrate that Rspo3 is primarily produced by cardiomyocytes. Moreover, we have employed CRISPR/Cas9 technology to generate novel Lgr4-null alleles that showed a significant decrease in coronary stem proliferation and thus phenocopied the coronary artery defects seen in Rspo3 mutants. Interestingly, Lgr4 mutants displayed slightly hypomorphic right ventricles, an observation also made after myocardial specific deletion of Rspo3. These results shed new light on the role of Rspo3 in heart development and demonstrate that LGR4 is the principal R-spondin 3 receptor in the heart.
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DOI:
10.1126/science.1251487
发表时间:
2014-07-04
期刊:
Science (New York, N.Y.)
影响因子:
--
作者:
Tian X;Hu T;Zhang H;He L;Huang X;Liu Q;Yu W;He L;Yang Z;Yan Y;Yang X;Zhong TP;Pu WT;Zhou B
通讯作者:
Zhou B
影响因子:
7.7
作者:
Lebensohn AM;Rohatgi R
通讯作者:
Rohatgi R
影响因子:
10.5
作者:
de Lau W;Peng WC;Gros P;Clevers H
通讯作者:
Clevers H
影响因子:
5.3
作者:
Morita, H;Mazerbourg, S;Hsueh, AJW
通讯作者:
Hsueh, AJW
影响因子:
2.7
作者:
Kinzel, Bernd;Pikiolek, Monika;Tchorz, Jan S.
通讯作者:
Tchorz, Jan S.