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Tissue expression of manganese superoxide dismutase is a candidate prognostic marker for glioblastoma
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- Authors
- Issue Date
- 2009-07
- Publisher
- Karger
- Citation
- Oncology 2009;77:178-181
- Keywords
- Proteomics ; Long-term survival ; Glioblastoma ; Prognostic factor ; Manganese superoxide dismutase
- Abstract
- Background: Characterization of a rare subgroup of glioblastoma
patients who survive for more than 3 years (longterm
survival glioblastoma, LTSGBL, patients) may be helpful
to identify prognostic factors. Materials and Methods: A
molecular-profiling proteomic approach using two-dimensional
gel electrophoresis (2-DE) and matrix-assisted la ser
desorption/ionization time-of-flight mass spectrometry
(MALDI-TOF MS) were used to identify prognostic factors associated
with glioblastoma by comparing frozen tumor tissue
from LTSGBL patients with matched samples from shortterm
survival glioblastoma (STSGBL) patients. Western blot
(WB) analysis, reverse-transcriptase polymerase chain reaction
(RT-PCR) and immmunohistochemical (IHC) staining
were used for confirmation. Results: Among most candidate
spots identified by 2-DE, lack of overexpression of manganese
superoxide dismutase (MnSOD) in LTSGBL samples was
consistently observed using WB and RT-PCR. Conclusion: These results suggest that MnSOD expression level in tumor
tissue is a candidate marker for the prognosis of glioblastoma
patients.
- ISSN
- 0030-2414
- Language
- English
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