Fgf10 mutant newts regenerate normal hindlimbs despite severe developmental defects.
Proc Natl Acad Sci U S A
; 121(11): e2314911121, 2024 Mar 12.
Article
em En
| MEDLINE
| ID: mdl-38442169
ABSTRACT
In amniote limbs, Fibroblast Growth Factor 10 (FGF10) is essential for limb development, but whether this function is broadly conserved in tetrapods and/or involved in adult limb regeneration remains unknown. To tackle this question, we established Fgf10 mutant lines in the newt Pleurodeles waltl which has amazing regenerative ability. While Fgf10 mutant forelimbs develop normally, the hindlimbs fail to develop and downregulate FGF target genes. Despite these developmental defects, Fgf10 mutants were able to regenerate normal hindlimbs rather than recapitulating the embryonic phenotype. Together, our results demonstrate an important role for FGF10 in hindlimb formation, but little or no function in regeneration, suggesting that different mechanisms operate during limb regeneration versus development.
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Base de dados:
MEDLINE
Assunto principal:
Fator 10 de Crescimento de Fibroblastos
Limite:
Animals
Idioma:
En
Revista:
Proc Natl Acad Sci U S A
Ano de publicação:
2024
Tipo de documento:
Article