In previous work, we found that nerve growth factor (NGF) induced expression of the mRNA transcript encoding the metalloproteinase transin/stromelysin in PC12 cells. Transin was found, moreover, to be a "late" gene product whose expression correlated with neurites extension. In this study, various aspects of the NGF intracellular signaling pathway in PC12 cells are investigated. We show that the protein kinase inhibitor staurosporine, but not various other kinase inhibitors, specifically blocked the NGF induction of transin. Preliminary characterization of this staurosporine-sensitive kinase suggest that it does not correspond to a tyrosine kinase, nor various serine kinases, and that it is involved both at the transcriptional and posttranscriptional levels of transin gene regulation. In contrast to these effects of staurosporine, various activators of protein kinases C and A augmented the NGF induction of transin. Similar effects of these kinase inhibitors and activators were also observed with the expression of various immediate-early genes that have been proposed to mediate the transcriptional effects of NGF, including c-fos and c-jun. These data suggest, therefore, that the NGF induction of transin mRNA expression involves multiple protein kinases acting at a number of postreceptor regulatory steps in the NGF signaling pathway.
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1 September 1991
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September 01 1991
NGF-induction of the metalloproteinase-transin/stromelysin in PC12 cells: involvement of multiple protein kinases.
C M Machida,
C M Machida
Department of Cell Biology and Anatomy, Oregon Health Sciences University, Portland 97201-3098.
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J D Scott,
J D Scott
Department of Cell Biology and Anatomy, Oregon Health Sciences University, Portland 97201-3098.
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G Ciment
G Ciment
Department of Cell Biology and Anatomy, Oregon Health Sciences University, Portland 97201-3098.
Search for other works by this author on:
C M Machida
Department of Cell Biology and Anatomy, Oregon Health Sciences University, Portland 97201-3098.
J D Scott
Department of Cell Biology and Anatomy, Oregon Health Sciences University, Portland 97201-3098.
G Ciment
Department of Cell Biology and Anatomy, Oregon Health Sciences University, Portland 97201-3098.
Online ISSN: 1540-8140
Print ISSN: 0021-9525
J Cell Biol (1991) 114 (5): 1037–1048.
Citation
C M Machida, J D Scott, G Ciment; NGF-induction of the metalloproteinase-transin/stromelysin in PC12 cells: involvement of multiple protein kinases.. J Cell Biol 1 September 1991; 114 (5): 1037–1048. doi: https://doi.org/10.1083/jcb.114.5.1037
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