Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
5
pubmed:dateCreated
2003-9-18
pubmed:abstractText
During CNS development, combinatorial expression of transcription factors controls neuronal subtype identity and subsequent axonal trajectory. Regulatory genes designating the routing of retinal ganglion cell (RGC) axons at the optic chiasm to the appropriate hemisphere, a pattern critical for proper binocular vision, have not been identified. Here, we show that the zinc finger transcription factor Zic2, a vertebrate homolog of the Drosophila gene odd-paired, is expressed in RGCs with an uncrossed trajectory during the period when this subpopulation grows from the ventrotemporal retina toward the optic chiasm. Loss- and gain-of-function analyses indicate that Zic2 is necessary and sufficient to regulate RGC axon repulsion by cues at the optic chiasm midline. Moreover, Zic2 expression reflects the extent of binocularity in different species, suggesting that Zic2 is an evolutionarily conserved determinant of RGCs that project ipsilaterally. These data provide evidence for transcriptional coding of axon pathfinding at the midline.
pubmed:grant
pubmed:commentsCorrections
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Sep
pubmed:issn
0092-8674
pubmed:author
pubmed:issnType
Print
pubmed:day
5
pubmed:volume
114
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
545-57
pubmed:dateRevised
2008-11-21
pubmed:meshHeading
pubmed-meshheading:13678579-Animals, pubmed-meshheading:13678579-Axons, pubmed-meshheading:13678579-Brain, pubmed-meshheading:13678579-Bromodeoxyuridine, pubmed-meshheading:13678579-Cell Line, pubmed-meshheading:13678579-Down-Regulation, pubmed-meshheading:13678579-Drosophila Proteins, pubmed-meshheading:13678579-Fluorescent Dyes, pubmed-meshheading:13678579-Genotype, pubmed-meshheading:13678579-Green Fluorescent Proteins, pubmed-meshheading:13678579-Homeodomain Proteins, pubmed-meshheading:13678579-Humans, pubmed-meshheading:13678579-Immunoblotting, pubmed-meshheading:13678579-Immunohistochemistry, pubmed-meshheading:13678579-Luminescent Proteins, pubmed-meshheading:13678579-Mice, pubmed-meshheading:13678579-Mice, Inbred C57BL, pubmed-meshheading:13678579-Mice, Knockout, pubmed-meshheading:13678579-Microscopy, Fluorescence, pubmed-meshheading:13678579-Mitosis, pubmed-meshheading:13678579-Models, Biological, pubmed-meshheading:13678579-Nuclear Proteins, pubmed-meshheading:13678579-Optic Nerve, pubmed-meshheading:13678579-Retina, pubmed-meshheading:13678579-Sindbis Virus, pubmed-meshheading:13678579-Time Factors, pubmed-meshheading:13678579-Transcription, Genetic, pubmed-meshheading:13678579-Transcription Factors, pubmed-meshheading:13678579-Transfection, pubmed-meshheading:13678579-Vision, Ocular
pubmed:year
2003
pubmed:articleTitle
Zic2 patterns binocular vision by specifying the uncrossed retinal projection.
pubmed:affiliation
Department of Pathology and Center for Neurobiology and Behavior, Columbia University, College of Physicians and Surgeons, New York, NY 10032, USA.
pubmed:publicationType
Journal Article, Research Support, U.S. Gov't, P.H.S., Research Support, Non-U.S. Gov't