PDGFRα-Signaling Is Dispensable for the Development of the Sinoatrial Node After Its Fate Commitment.
PDGFRα-Signaling Is Dispensable for the Development of the Sinoatrial Node After Its Fate Commitment.
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PDGFRα信号对于窦房结命运承诺后的发育是可有可无的
DOI:
10.3389/fcell.2021.647165
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发表时间:
2021
影响因子:
5.5
通讯作者:
Hu X
中科院分区:
文献类型:
--
作者:
Zheng X;Wang F;Hu X;Li H;Guan Z;Zhang Y;Hu X
Palate-derived growth factor receptor α (Pdgfrα) signaling has been reported to play important roles in the cardiac development. A previous study utilizing Pdgfrα conventional knockout mice reported hypoplasia of the sinus venous myocardium including the sinoatrial node (SAN) accompanied by increased expression of Nkx2.5. This mouse line embryos die by E11.5 due to embryonic lethality, rendering them difficult to investigate the details. To elucidate the underlying mechanism, in this study, we revisited this observation by generation of specific ablation of Pdgfrα in the SAN by Shox2-Cre at E9.5, using a Shox2-Cre;Pdgfrαflox/flox conditional mouse line. Surprisingly, we found that resultant homozygous mutant mice did not exhibit any malformation in SAN morphology as compared to their wild-type littermates. Further analysis revealed the normal cardiac function in adult mutant mice assessed by the record of heart rate and electrocardiogram and unaltered expression of Nkx2.5 in the E13.5 SAN of Pdgfrα conditional knockout mice. Our results unambiguously demonstrate that Pdgfrα is dispensable for SAN development after its fate commitment in mice.
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影响因子:
20.1
作者:
Liang X;Wang G;Lin L;Lowe J;Zhang Q;Bu L;Chen Y;Chen J;Sun Y;Evans SM
通讯作者:
Evans SM
影响因子:
7.7
作者:
Bloomekatz J;Singh R;Prall OW;Dunn AC;Vaughan M;Loo CS;Harvey RP;Yelon D
通讯作者:
Yelon D
影响因子:
2.7
作者:
Espinoza-Lewis, Ramon A.;Yu, Ling;He, Fenglei;Liu, Hongbing;Tang, Ruhang;Shi, Jiangli;Sun, Xiaoxiao;Martin, James F.;Wang, Dazhi;Yang, Jing;Chen, YiPing
通讯作者:
Chen, YiPing
影响因子:
20.1
作者:
Christoffels, Vincent M.;Mommersteeg, Mathilda T. M.;Kispert, Andreas
通讯作者:
Kispert, Andreas
DOI:
10.1002/gene.10022
发表时间:
2001-12-01
期刊:
Genesis The Journal of Genetics and Development
影响因子:
--
作者:
Moses, Kelvin A.;DeMayo, Franco;Schwartz, Robert J.
通讯作者:
Schwartz, Robert J.