Amplification of the epidermal-growth-factor-receptor gene correlates with different growth behaviour in human glioblastoma
The objective of our study was to determine the frequency of EGF-receptor-gene rearrangement in relation to tumour-growth behaviour in an unselected group of glioma patients. We investigated 73 glial tumours with different grades of malignancy (17 low-grade gliomas, 14 anaplastic variants, and 42 GB...
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| Hauptverfasser: | , , , , , , |
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| Dokumenttyp: | Article (Journal) |
| Sprache: | Englisch |
| Veröffentlicht: |
2 January 1994
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| In: |
International journal of cancer
Year: 1994, Jahrgang: 56, Heft: 1, Pages: 72-77 |
| ISSN: | 1097-0215 |
| DOI: | 10.1002/ijc.2910560114 |
| Online-Zugang: | Verlag, lizenzpflichtig, Volltext: https://doi.org/10.1002/ijc.2910560114 Verlag, lizenzpflichtig, Volltext: https://onlinelibrary.wiley.com/doi/abs/10.1002/ijc.2910560114 
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| Verfasserangaben: | Jürgen Schlegel, Annette Merdes, Gabi Stumm, Fritz K. Albert, Michael Forsting, Nancy Hynes, Marika Kiessling |
MARC
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| 245 | 1 | 0 | |a Amplification of the epidermal-growth-factor-receptor gene correlates with different growth behaviour in human glioblastoma |c Jürgen Schlegel, Annette Merdes, Gabi Stumm, Fritz K. Albert, Michael Forsting, Nancy Hynes, Marika Kiessling |
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| 520 | |a The objective of our study was to determine the frequency of EGF-receptor-gene rearrangement in relation to tumour-growth behaviour in an unselected group of glioma patients. We investigated 73 glial tumours with different grades of malignancy (17 low-grade gliomas, 14 anaplastic variants, and 42 GBM) by Southern analysis, reverse transcriptase PCR (RT-PCR) amplification of mRNA, and Western analysis. An amplification of the EGF-receptor gene was present in 19/42 GBM but in only I anaplastic astrocytoma. By RT-PCR, 4/19 GBM with gene amplification showed a specific amino-terminal aberrant splice mutation of 801 bp in addition to undeleted mRNA. By Western analysis, 27/42 GBM showed expression of the EGF-receptor protein. Protein levels, however, varied among individual tumours. Four GBM containing an aberrant splice mutation exhibited an immunoreactive protein of 130 kDa MW in addition to the normal EGF-receptor protein p170. All GBM patients underwent surgery followed by a standard course of radiotherapy. Neuroradiological follow-up in 31/42 GBM patients consisted of bimonthly MRJ examinations. There was a statistically significant difference in the mean latency period until tumour regrowth of patients suffering from GBM with and without EGF-receptor-gene amplification (9 weeks vs. 32 weeks). Our data indicate more rapid tumour regrowth kinetics of GBM with amplified EGF receptor genes in vivo. © 1994 Wiley-Liss, Inc. | ||
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