التفاصيل البيبلوغرافية
| العنوان: |
EGFR but not PDGFR-beta expression correlates to the antiproliferative effect of growth factor withdrawal in glioblastoma multiforme cell lines |
| المؤلفون: |
Halatsch, M. E., Gehrke, E., A-Borhani, F., Efferth, T., Werner, C., Nomikos, P., Schmidt, U., Buchfelder, Michael |
| بيانات النشر: |
Int Inst Anticancer Research |
| سنة النشر: |
2003 |
| المجموعة: |
Georg-August-Universität Göttingen: GoeScholar |
| الوصف: |
Background: The aim of the current study was to investigate a putative relationship between (i) growth characteristics (proliferation and tumorigenicity) of nine glioblastoma multiforme (GBM) cell lines under different growth-stimulating conditions in vitro and (ii) their basal expression of a panel of growth factor receptors/autocrine cytokines. Materials and Methods: Basal expressions of the epidermal growth factor receptor (EGFR), platelet-derived growth factor receptor-beta (PDGFR-beta platelet-derived growth factor-AA (PDGF-AA) and PDGF-BB, tumor growth factor-alpha (TGF-alpha) and, TGF-beta as well as tumor necrosis factor-alpha (TNF-alpha) were determined by immunocytochemistry at standard cell culture conditions (10% fetal calf serum [FCS]). Proliferation and tumorigenicity at 10% FCS and relative serum starvation (0.5% FCS) were assessed by using Coulter counting and soft agar cloning, respectively. Results: The ratio between cell multiplications at 10% and 0.5% FCS over a 10-day period was defined as a measure of growth factor dependence of cellular proliferation. Expression of EGFR (but not of PDGFR-beta) strongly correlated to this ratio (Spearman rank correlation coefficient R = 0.87). No considerable correlations were present among other appropriate pairs of variables with biologically founded putative relationships. Conclusion: Greater expression of EGFR is associated with increased growth factor dependence of cellular proliferation. Our results strengthen the role of EGFR as a rational molecular target of therapeutic intervention in GBM. |
| نوع الوثيقة: |
article in journal/newspaper |
| اللغة: |
unknown |
| تدمد: |
0250-7005 |
| العلاقة: |
https://resolver.sub.uni-goettingen.de/purl?gro-2/45949Test; 000184359200016 |
| الإتاحة: |
https://resolver.sub.uni-goettingen.de/purl?gro-2/45949Test |
| رقم الانضمام: |
edsbas.EEB4E58D |
| قاعدة البيانات: |
BASE |
