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Hsc70 is a novel interactor of NF-kappaB p65 in living hippocampal neurons

Klenke, C., Widera, D., Engelen, T., Müller, J., Noll, T., Niehaus, K., Schmitz, M. L., Kaltschmidt, B. and Kaltschmidt, C. (2013) Hsc70 is a novel interactor of NF-kappaB p65 in living hippocampal neurons. PLoS ONE, 8 (6). e65280. ISSN 1932-6203

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To link to this item DOI: 10.1371/journal.pone.0065280

Abstract/Summary

Signaling via NF-κB in neurons depends on complex formation with interactors such as dynein/dynactin motor complex and can be triggered by synaptic activation. However, so far a detailed interaction map for the neuronal NF-κB is missing. In this study we used mass spectrometry to identify novel interactors of NF-κB p65 within the brain. Hsc70 was identified as a novel neuronal interactor of NF-κB p65. In HEK293 cells, a direct physical interaction was shown by co-immunoprecipitation and verified via in situ proximity ligation in healthy rat neurons. Pharmacological blockade of Hsc70 by deoxyspergualin (DSG) strongly decreased nuclear translocation of NF-κB p65 and transcriptional activity shown by reporter gene assays in neurons after stimulation with glutamate. In addition, knock down of Hsc70 via siRNA significantly reduced neuronal NF-κB activity. Taken together these data provide evidence for Hsc70 as a novel neuronal interactor of NF-κB p65.

Item Type:Article
Refereed:Yes
Divisions:No Reading authors. Back catalogue items
Faculty of Life Sciences > School of Chemistry, Food and Pharmacy > School of Pharmacy > Division of Pharmacology
ID Code:39518
Publisher:Public Library of Science

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