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XB-ART-10221
FEBS Lett 2000 Sep 29;4821-2:37-43.
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Maternal cold inducible RNA binding protein is required for embryonic kidney formation in Xenopus laevis.

Peng Y , Kok KH , Xu RH , Kwok KH , Tay D , Fung PC , Kung HF , Lin MC .


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We cloned a major isoform of Xenopus homologue of cold inducible RNA binding protein (CIRP), XCIRP-1. XCIRP-1 was neither cold inducible nor essential for cell division during early embryonic development. Suppression of XCIRP-1 dose dependently produced tailbuds with deformations of the brain and internal organs. The defects were XCIRP-1 specific as they could be rescued by sense transcript. Suppression of XCIRP-1 also disrupted the morphogenetic migration of the C3 blastomeres (lineaged to become the embryonic kidney, the pronephros). In animal cap explants, depletion of XCIRP-1 inhibited activin/retinoic acid induced expressions of pronephros related Xlim-1 and WT1 genes. These results suggest that XCIRP-1 is required for the specification and morphogenetic lineage migration of the pronephros.

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Species referenced: Xenopus laevis
Genes referenced: cirbp lhx1 wt1