Linked Life Data

16488878

Source:http://linkedlifedata.com/resource/pubmed/id/16488878

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
4
pubmed:dateCreated
2006-2-20
pubmed:abstractText
FGF signaling from the midbrain-hindbrain boundary (MHB, isthmus) plays a major role both in maintenance of the MHB and induction of the tectum and cerebellum. Since different levels of FGF signaling in the MHB result in a qualitative difference in inducing activity, FGF signaling in the MHB should be tightly regulated positively and negatively at multiple steps to ensure correct levels of FGF signaling. Factors that negatively regulate FGF signal around the MHB are reported. However, factors that ensure strong FGF signal in the MHB are largely unknown. Here we report the identification of Canopy1 (Cnpy1), a novel MHB-specific, Saposin-related protein that belongs to an evolutionarily conserved protein family. The cnpy1 gene was expressed specifically in the MHB of zebrafish embryos. Exogenous FGF8 induced expression of cnpy1 in the tectal primordial. Knockdown of cnpy1 resulted in MHB defects and impaired FGF signaling in a cell-autonomous manner. Cnpy1 is localized in the endoplasmic reticulum and interacts with FGFR1. This study highlights a positive-feedback loop between the FGFR pathway and Cnpy1 that may ensure the strength of FGF signaling in the MHB, leading to correct development of the tectum and cerebellum.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Feb
pubmed:issn
0960-9822
pubmed:author
pubmed:issnType
Print
pubmed:day
21
pubmed:volume
16
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
421-7
pubmed:dateRevised
2009-11-19
pubmed:meshHeading
pubmed:year
2006
pubmed:articleTitle
Canopy1, a novel regulator of FGF signaling around the midbrain-hindbrain boundary in zebrafish.
pubmed:affiliation
Laboratory for Developmental Gene Regulation, Brain Science Institute, RIKEN, 2-1 Hirosawa, Wako, Saitama, 351-0198, Japan.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't