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http://purl.uniprot.org/citations/30909860http://www.w3.org/1999/02/22-rdf-syntax-ns#typehttp://purl.uniprot.org/core/Journal_Citation
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Background

The embryonic day E10-13 period of mouse heart development is characterized by robust cardiomyocyte proliferation that creates the compact zone of thickened ventricular wall myocardium. This process is initiated by the formation of the epicardium on the outer heart surface, which releases insulin-like growth factor 2 (IGF2) as the primary cardiomyocyte mitogen. Two receptors mediate IGF2 signaling, the IGF1R and the insulin receptor (INSR).

Results

In this study, we addressed the relative roles of the two IGF2 receptors in mouse heart development. We find that both receptors are expressed in the mouse heart during the E10-13 period, although IGF1R is much more prominently activated by IGF2 than INSR. Genetic manipulation indicates that only Igf1r is required for embryonic ventricular wall morphogenesis. INSR is not hyperactivated in the absence of IGF1R, and INSR does not compensate functionally for IGF1R in the absence of the latter.

Conclusions

These results define the molecular components that are responsible for a major burst of cardiomyocyte proliferation during heart development. These results may also be relevant to understanding the efficiency of regeneration of the mammalian heart after neonatal and adult injury."xsd:string
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http://purl.uniprot.org/citations/30909860http://purl.uniprot.org/core/author"Shen H."xsd:string
http://purl.uniprot.org/citations/30909860http://purl.uniprot.org/core/author"Wang K."xsd:string
http://purl.uniprot.org/citations/30909860http://purl.uniprot.org/core/author"Gan P."xsd:string
http://purl.uniprot.org/citations/30909860http://purl.uniprot.org/core/author"Kumar S.R."xsd:string
http://purl.uniprot.org/citations/30909860http://purl.uniprot.org/core/author"Lien C.L."xsd:string
http://purl.uniprot.org/citations/30909860http://purl.uniprot.org/core/author"Sucov H.M."xsd:string
http://purl.uniprot.org/citations/30909860http://purl.uniprot.org/core/author"Cavallero S."xsd:string
http://purl.uniprot.org/citations/30909860http://purl.uniprot.org/core/date"2019"xsd:gYear
http://purl.uniprot.org/citations/30909860http://purl.uniprot.org/core/name"BMC Dev Biol"xsd:string
http://purl.uniprot.org/citations/30909860http://purl.uniprot.org/core/pages"5"xsd:string
http://purl.uniprot.org/citations/30909860http://purl.uniprot.org/core/title"Differential roles of insulin like growth factor 1 receptor and insulin receptor during embryonic heart development."xsd:string
http://purl.uniprot.org/citations/30909860http://purl.uniprot.org/core/volume"19"xsd:string
http://purl.uniprot.org/citations/30909860http://www.w3.org/2004/02/skos/core#exactMatchhttp://purl.uniprot.org/pubmed/30909860
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