Abstract:
:PDGF-C is a member of the platelet-derived growth factor (PDGF) family, which signals through PDGF receptor (PDGFR) alphaalpha and alphabeta dimers. Here we show that Pdgfc(-/-) mice die in the perinatal period owing to feeding and respiratory difficulties associated with a complete cleft of the secondary palate. This phenotype was less severe than that of Pdgfra(-/-) embryos. Pdgfc(-/-) Pdgfa(-/-) embryos developed a cleft face, subepidermal blistering, deficiency of renal cortex mesenchyme, spina bifida and skeletal and vascular defects. Complete loss of function of both ligands, therefore, phenocopied the loss of PDGFR-alpha function, suggesting that both PDGF-A and PDGF-C signal through PDGFR-alpha to regulate the development of craniofacial structures, the neural tube and mesodermal organs. Our results also show that PDGF-C signaling is a new pathway in palatogenesis, different from, and independent of, those previously implicated.
journal_name
Nat Genetjournal_title
Nature geneticsauthors
Ding H,Wu X,Boström H,Kim I,Wong N,Tsoi B,O'Rourke M,Koh GY,Soriano P,Betsholtz C,Hart TC,Marazita ML,Field LL,Tam PP,Nagy Adoi
10.1038/ng1415keywords:
subject
Has Abstractpub_date
2004-10-01 00:00:00pages
1111-6issue
10eissn
1061-4036issn
1546-1718pii
ng1415journal_volume
36pub_type
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