| Phosphoinositide-specific phospholipase Cbeta1 expression is not linked to nerve growth factor-induced differentiation, cell survival or cell cycle control in PC12 rat pheocromocytoma cells. | |
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MedLine Citation:
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PMID: 11746516 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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Recent reports have highlighted that phosphoinositide-specific phospholipase Cbeta1 expression is linked to neuronal differentiation in different experimental models. We sought to determine whether or not this is also true for nerve growth factor (NGF)-induced neuronal differentiation of rat PC12 cells. However, we did not find differences in the expression of both the forms of phosphoinositide-specific phospholipase Cbeta1 (a and b) during sympathetic differentiation of these cells. Also, PC12 cell clones stably overexpressing phosphoinositide-specific phospholipase Cbeta1 were not more susceptible to the differentiating effect of NGF. Furthermore, since it is well established that phosphoinositide-specific phospholipase Cbeta1 affects cell proliferation, we investigated whether or not PC12 cell clones stably overexpressing phosphoinositide-specific phospholipase Cbeta1 showed differences in survival to serum deprivation and cell cycle, when compared to wild type cells. Nevertheless, we did not find any differences in these parameters between wild type cells and the overexpressing clones. Interestingly, in PC12 cells the overexpressed phosphoinositide-specific phospholipase Cbeta1 did not localize to the nucleus, but by immunofluorescence analysis, was detected in the cytoplasm. Therefore, our findings may represent another important clue to the fact that only when it is located within the nucleus phosphoinositide-specific phospholipase Cbeta1 is able to influence cell proliferation. |
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Authors:
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R Bortul; M Aluigi; P L Tazzari; G Tabellini; G Baldini; R Bareggi; P Narducci; A M Martelli |
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Publication Detail:
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Type: Journal Article; Research Support, Non-U.S. Gov't |
Journal Detail:
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Title: Journal of cellular biochemistry Volume: 84 ISSN: 0730-2312 ISO Abbreviation: J. Cell. Biochem. Publication Date: 2001 |
Date Detail:
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Created Date: 2001-12-17 Completed Date: 2002-03-13 Revised Date: 2007-11-15 |
Medline Journal Info:
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Nlm Unique ID: 8205768 Medline TA: J Cell Biochem Country: United States |
Other Details:
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Languages: eng Pagination: 56-67 Citation Subset: IM |
Copyright Information:
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Copyright 2001 Wiley-Liss, Inc. |
Affiliation:
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Dipartimento di Morfologia Umana Normale, Università di Trieste, via Manzoni 16, 34138 Trieste, Italy. |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Animals Apoptosis / physiology Cell Cycle / drug effects, physiology Cell Differentiation / drug effects*, physiology Cell Survival / drug effects, physiology Culture Media, Serum-Free / metabolism Cytoplasm / metabolism Hydrolysis Isoenzymes / metabolism* Nerve Growth Factor / pharmacology* PC12 Cells / drug effects*, enzymology, pathology Phosphatidylinositols / metabolism* Phospholipase C beta Rats Type C Phospholipases / metabolism* |
| Chemical | |
Reg. No./Substance:
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0/Culture Media, Serum-Free; 0/Isoenzymes; 0/Phosphatidylinositols; 9061-61-4/Nerve Growth Factor; EC 3.1.4.-/Type C Phospholipases; EC 3.1.4.11/Phospholipase C beta |
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