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Axon Outgrowth Is Regulated by an Intracellular Purine-sensitive Mechanism in Retinal Ganglion Cells

Axon Outgrowth Is Regulated by an Intracellular Purine-sensitive Mechanism in Retinal Ganglion Cells

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BENOWITZ, Larry I., Yun JING, Raymond TABIBIAZAR, Sangmee A. JO, Barbara PETRAUSCH, Claudia STÜRMER, Paul A. ROSENBERG, Nina IRWIN, 1998. Axon Outgrowth Is Regulated by an Intracellular Purine-sensitive Mechanism in Retinal Ganglion Cells. In: The Journal of Biological Chemistry. 273(45), pp. 29626-29634. ISSN 0021-9258. eISSN 1083-351X

@article{Benowitz1998Outgr-7913, title={Axon Outgrowth Is Regulated by an Intracellular Purine-sensitive Mechanism in Retinal Ganglion Cells}, year={1998}, doi={10.1074/jbc.273.45.29626}, number={45}, volume={273}, issn={0021-9258}, journal={The Journal of Biological Chemistry}, pages={29626--29634}, author={Benowitz, Larry I. and Jing, Yun and Tabibiazar, Raymond and Jo, Sangmee A. and Petrausch, Barbara and Stürmer, Claudia and Rosenberg, Paul A. and Irwin, Nina} }

<rdf:RDF xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#" xmlns:bibo="http://purl.org/ontology/bibo/" xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:dcterms="http://purl.org/dc/terms/" xmlns:xsd="http://www.w3.org/2001/XMLSchema#" > <rdf:Description rdf:about="https://kops.uni-konstanz.de/rdf/resource/123456789/7913"> <dcterms:abstract xml:lang="eng">Although purinergic compounds are widely involved in the intra- and intercellular communication of the nervous system, little is known of their involvement in the growth and regeneration of neuronal connections. In dissociated cultures, the addition of adenosine or guanosine in the low micromolar range induced goldfish retinal ganglion cells to extend lengthy neurites and express the growth-associated protein GAP-43. These effects were highly specific and did not reflect conversion of the nucleosides to their nucleotide derivatives; pyrimidines, purine nucleotides, and membrane-permeable, nonhydrolyzable cyclic nucleotide analogs were all inactive. The activity of adenosine required its conversion to inosine, because inhibitors of adenosine deaminase rendered adenosine inactive. Exogenously applied inosine and guanosine act directly upon an intracellular target, which may coincide with a kinase described in PC12 cells. In support of this, the effects of the purine nucleosides were blocked with purine transport inhibitors and were inhibited competitively with the purine analog 6-thioguanine (6-TG). In PC12 cells, others have shown that 6-TG blocks nerve growth factor-induced neurite outgrowth and selectively inhibits the activity of protein kinase N, a partially characterized, nerve growth factor-inducible serine-threonine kinase. In both goldfish and rat retinal ganglion cells, 6-TG completely blocked outgrowth induced by other growth factors, and this inhibition was reversed with inosine. These results suggest that axon outgrowth in central nervous system neurons critically involves an intracellular purine-sensitive mechanism.</dcterms:abstract> <dc:creator>Jing, Yun</dc:creator> <dc:contributor>Jo, Sangmee A.</dc:contributor> <dcterms:title>Axon Outgrowth Is Regulated by an Intracellular Purine-sensitive Mechanism in Retinal Ganglion Cells</dcterms:title> <dc:language>eng</dc:language> <dc:contributor>Jing, Yun</dc:contributor> <dc:contributor>Benowitz, Larry I.</dc:contributor> <dc:contributor>Rosenberg, Paul A.</dc:contributor> <dc:format>application/pdf</dc:format> <dcterms:rights rdf:resource="https://creativecommons.org/licenses/by-nc-nd/2.0/legalcode"/> <dc:creator>Rosenberg, Paul A.</dc:creator> <dc:contributor>Tabibiazar, Raymond</dc:contributor> <dc:contributor>Stürmer, Claudia</dc:contributor> <dc:rights>deposit-license</dc:rights> <dc:date rdf:datatype="http://www.w3.org/2001/XMLSchema#dateTime">2011-03-24T17:38:28Z</dc:date> <dc:contributor>Petrausch, Barbara</dc:contributor> <dc:contributor>Irwin, Nina</dc:contributor> <dcterms:available rdf:datatype="http://www.w3.org/2001/XMLSchema#dateTime">2011-03-24T17:38:28Z</dcterms:available> <dc:creator>Stürmer, Claudia</dc:creator> <dcterms:issued>1998</dcterms:issued> <dc:creator>Tabibiazar, Raymond</dc:creator> <dc:creator>Petrausch, Barbara</dc:creator> <dc:creator>Jo, Sangmee A.</dc:creator> <dc:creator>Irwin, Nina</dc:creator> <dcterms:bibliographicCitation>First publ. in: The Journal of Biological Chemistry 273 (1998), 45, pp. 29626-29634</dcterms:bibliographicCitation> <bibo:uri rdf:resource="http://kops.uni-konstanz.de/handle/123456789/7913"/> <dc:creator>Benowitz, Larry I.</dc:creator> </rdf:Description> </rdf:RDF>

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