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Neurotrophin binding to the p75 receptor modulates Rho activity and axonal outgrowth

Yamashita, T. and Tucker, K. L. and Barde, Y. A.. (1999) Neurotrophin binding to the p75 receptor modulates Rho activity and axonal outgrowth. Neuron, Vol. 24, H. 3. pp. 585-593.

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Official URL: http://edoc.unibas.ch/dok/A5259526

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Abstract

While the neurotrophin receptor p75NTR is expressed by many developing neurons, its function in cells escaping elimination by programmed cell death remains unclear. The lack of intrinsic enzymatic activity of p75NTR prompted a search for protein interactors expressed in the developing retina, which resulted in the identification of the GTPase RhoA. In transfected cells, p75NTR activated RhoA, and neurotrophin binding abolished RhoA activation. In cultured neurons, inactivation of Rho proteins mimicked the effect of neurotrophins by increasing the rate of neurite elongation. In vivo, axonal outgrowth was retarded in mice carrying a mutation in the p75NTR gene. These results indicate that p75NTR modulates in a ligand-dependent fashion the activity of intracellular proteins known to regulate actin assembly.
Faculties and Departments:05 Faculty of Science > Departement Biozentrum > Former Organization Units Biozentrum > Pharmacology/Neurobiology (Barde)
UniBasel Contributors:Barde, Yves-Alain
Item Type:Article, refereed
Article Subtype:Research Article
Bibsysno:Link to catalogue
Publisher:Cell Press
ISSN:0896-6273
Note:Publication type according to Uni Basel Research Database: Journal article
Last Modified:22 Mar 2012 14:21
Deposited On:22 Mar 2012 13:22

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