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Published in: BMC Cancer 1/2006

Open Access 01-12-2006 | Research article

Nestin expression in the cell lines derived from glioblastoma multiforme

Authors: Renata Veselska, Petr Kuglik, Pavel Cejpek, Hana Svachova, Jakub Neradil, Tomas Loja, Jirina Relichova

Published in: BMC Cancer | Issue 1/2006

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Abstract

Background

Nestin is a protein belonging to class VI of intermediate filaments that is produced in stem/progenitor cells in the mammalian CNS during development and is consecutively replaced by other intermediate filament proteins (neurofilaments, GFAP). Down-regulated nestin may be re-expressed in the adult organism under certain pathological conditions (brain injury, ischemia, inflammation, neoplastic transformation). Our work focused on a detailed study of the nestin cytoskeleton in cell lines derived from glioblastoma multiforme, because re-expression of nestin together with down-regulation of GFAP has been previously reported in this type of brain tumor.

Methods

Two cell lines were derived from the tumor tissue of patients treated for glioblastoma multiforme. Nestin and other cytoskeletal proteins were visualized using imunocytochemical methods: indirect immunofluorescence and immunogold-labelling.

Results

Using epifluorescence and confocal microscopy, we described the morphology of nestin-positive intermediate filaments in glioblastoma cells of both primary cultures and the derived cell lines, as well as the reorganization of nestin during mitosis. Our most important result came through transmission electron microscopy and provided clear evidence that nestin is present in the cell nucleus.

Conclusion

Detailed information concerning the pattern of the nestin cytoskeleton in glioblastoma cell lines and especially the demonstration of nestin in the nucleus represent an important background for further studies of nestin re-expression in relationship to tumor malignancy and invasive potential.
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Metadata
Title
Nestin expression in the cell lines derived from glioblastoma multiforme
Authors
Renata Veselska
Petr Kuglik
Pavel Cejpek
Hana Svachova
Jakub Neradil
Tomas Loja
Jirina Relichova
Publication date
01-12-2006
Publisher
BioMed Central
Published in
BMC Cancer / Issue 1/2006
Electronic ISSN: 1471-2407
DOI
https://doi.org/10.1186/1471-2407-6-32

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