Publication Date:
2008-05-20
Description:
Development of axonal tracts requires interactions between growth cones and the environment. Tracts such as the anterior commissure and internal capsule are defective in mice with null mutation of Celsr3. We generated a conditional Celsr3 allele, allowing regional inactivation. Inactivation in telencephalon, ventral forebrain, or cortex demonstrated essential roles for Celsr3 in neurons that project axons to the anterior commissure and subcerebral targets, as well as in cells that guide axons through the internal capsule. When Celsr3 was inactivated in cortex, subcerebral projections failed to grow, yet corticothalamic axons developed normally, indicating that besides guidepost cells, additional Celsr3-independent cues can assist their progression. These observations provide in vivo evidence that Celsr3-mediated interactions between axons and guidepost cells govern axonal tract formation in mammals.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2746700/" target="_blank"〉〈img src="https://static.pubmed.gov/portal/portal3rc.fcgi/4089621/img/3977009" border="0"〉〈/a〉 〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2746700/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Zhou, Libing -- Bar, Isabelle -- Achouri, Younes -- Campbell, Kenneth -- De Backer, Olivier -- Hebert, Jean M -- Jones, Kevin -- Kessaris, Nicoletta -- de Rouvroit, Catherine Lambert -- O'Leary, Dennis -- Richardson, William D -- Goffinet, Andre M -- Tissir, Fadel -- G0501173/Medical Research Council/United Kingdom -- G0800575/Medical Research Council/United Kingdom -- G9708005/Medical Research Council/United Kingdom -- R01 MH086147/MH/NIMH NIH HHS/ -- R01 MH086147-05/MH/NIMH NIH HHS/ -- R37 NS031558/NS/NINDS NIH HHS/ -- R37 NS031558-15/NS/NINDS NIH HHS/ -- New York, N.Y. -- Science. 2008 May 16;320(5878):946-9. doi: 10.1126/science.1155244.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Developmental Neurobiology, Universite Catholique de Louvain, 1200 Bruxelles, Belgique.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/18487195" target="_blank"〉PubMed〈/a〉
Keywords:
Animals
;
Axons/*physiology
;
Cadherins/*genetics/*physiology
;
Cerebral Cortex/cytology/embryology
;
Female
;
Gene Silencing
;
Internal Capsule/cytology/embryology/physiology
;
Male
;
Mice
;
Neural Pathways/*embryology/physiology
;
Neurons/*physiology
;
Prosencephalon/cytology/*embryology/physiology
;
Receptors, Cell Surface/*genetics/*physiology
;
Septal Nuclei/embryology/physiology
;
Thalamus/cytology/embryology
;
Tissue Culture Techniques
Print ISSN:
0036-8075
Electronic ISSN:
1095-9203
Topics:
Biology
,
Chemistry and Pharmacology
,
Computer Science
,
Medicine
,
Natural Sciences in General
,
Physics
