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Molecular analysis of WWOX expression correlation with proliferation and apoptosis in glioblastoma multiforme

Authors
Journal
Journal of Neuro-Oncology
0167-594X
Publisher
Springer-Verlag
Publication Date
Volume
101
Issue
2
Identifiers
DOI: 10.1007/s11060-010-0254-1
Keywords
  • Laboratory Investigation - Human/Animal Tissue

Abstract

Glioblastoma multiforme is the most common type of primary brain tumor in adults. WWOX is a tumor suppressor gene involved in carcinogenesis and cancer progression in many different neoplasms. Reduced WWOX expression is associated with more aggressive phenotype and poor patient outcome in several cancers. We investigated alternations of WWOX expression and its correlation with proliferation, apoptosis and signal trafficking in 67 glioblastoma multiforme specimens. Moreover, we examined the level of WWOX LOH and methylation status in WWOX promoter region. Our results suggest that loss of heterozygosity (relatively frequent in glioblastoma multiforme) along with promoter methylation may decrease the expression of this tumor suppressor gene. Our experiment revealed positive correlations between WWOX and Bcl2 and between WWOX and Ki67. We also confirmed that WWOX is positively correlated with ErbB4 signaling pathway in glioblastoma multiforme.

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