Essential role for fibrillin-2 in zebrafish notochord and vascular morphogenesis.

Essential role for fibrillin-2 in zebrafish notochord and vascular morphogenesis.
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纤维蛋白-2在斑马鱼脊索和血管形态发生中的重要作用。

DOI:
10.1002/dvdy.21705
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发表时间:
2008-10
影响因子:
2.5
通讯作者:
Gitlin, Jonathan D.
Gitlin, Jonathan D.
中科院分区:
生物学3区
文献类型:
--
作者:
Gansner, John M.;Madsen, Erik C.;Mecham, Robert P.;Gitlin, Jonathan D.

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Recent studies demonstrate that lysyl oxidase cuproenzymes are critical for zebrafish notochord formation, but the molecular mechanisms of copper-dependent notochord morphogenesis are incompletely understood. We therefore conducted a forward genetic screen for zebrafish mutants that exhibit notochord sensitivity to lysyl oxidase inhibition, yielding a mutant with defects in notochord and vascular morphogenesis, puff daddygw1 (pfdgw1). Meiotic mapping and cloning reveal that the pfdgw1 phenotype results from disruption of the gene encoding the extracellular matrix protein fibrillin-2, and the spatio-temporal expression of fibrillin-2 is consistent with the pfdgw1 phenotype. Furthermore, each aspect of the pfdgw1 phenotype is recapitulated by morpholino knockdown of fibrillin-2. Taken together, the data reveal a genetic interaction between fibrillin-2 and the lysyl oxidases in notochord formation and demonstrate the importance of fibrillin-2 in specific early developmental processes in zebrafish.
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