Please use this identifier to cite or link to this item: https://doi.org/10.1371/journal.pone.0021680
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dc.titleMitochondrial localized STAT3 is involved in NGF induced neurite outgrowth
dc.contributor.authorZhou, L.
dc.contributor.authorToo, H.-P.
dc.date.accessioned2014-12-02T08:39:10Z
dc.date.available2014-12-02T08:39:10Z
dc.date.issued2011
dc.identifier.citationZhou, L., Too, H.-P. (2011). Mitochondrial localized STAT3 is involved in NGF induced neurite outgrowth. PLoS ONE 6 (6) : -. ScholarBank@NUS Repository. https://doi.org/10.1371/journal.pone.0021680
dc.identifier.issn19326203
dc.identifier.urihttp://scholarbank.nus.edu.sg/handle/10635/114643
dc.description.abstractBackground: Signal transducer and activator of transcription 3 (STAT3) plays critical roles in neural development and is increasingly recognized as a major mediator of injury response in the nervous system. Cytokines and growth factors are known to phosphorylate STAT3 at tyrosine705 with or without the concomitant phosphorylation at serine727, resulting in the nuclear localization of STAT3 and subsequent transcriptional activation of genes. Recent evidence suggests that STAT3 may control cell function via alternative mechanisms independent of its transcriptional activity. Currently, the involvement of STAT3 mono-phosphorylated at residue serine727 (P-Ser-STAT3) in neurite outgrowth and the underlying mechanism is largely unknown. Principal Findings: In this study, we investigated the role of nerve growth factor (NGF) induced P-Ser-STAT3 in mediating neurite outgrowth. NGF induced the phosphorylation of residue serine727 but not tyrosine705 of STAT3 in PC12 and primary cortical neuronal cells. In PC12 cells, serine but not tyrosine dominant negative mutant of STAT3 was found to impair NGF induced neurite outgrowth. Unexpectedly, NGF induced P-Ser-STAT3 was localized to the mitochondria but not in the nucleus. Mitochondrial STAT3 was further found to be intimately involved in NGF induced neurite outgrowth and the production of reactive oxygen species (ROS). Conclusion: Taken together, the findings herein demonstrated a hitherto unrecognized novel transcription independent mechanism whereby the mitochondria localized P-Ser-STAT3 is involved in NGF induced neurite outgrowth. © 2011 Zhou, Too.
dc.description.urihttp://libproxy1.nus.edu.sg/login?url=http://dx.doi.org/10.1371/journal.pone.0021680
dc.sourceScopus
dc.typeArticle
dc.contributor.departmentSINGAPORE-MIT ALLIANCE
dc.description.doi10.1371/journal.pone.0021680
dc.description.sourcetitlePLoS ONE
dc.description.volume6
dc.description.issue6
dc.description.page-
dc.identifier.isiut000292092600071
dc.published.statePublished
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