| Literature DB >> 18403493 |
Hae Kyung Lee1, Cunli Xiang, Simona Cazacu, Susan Finniss, Gila Kazimirsky, Nancy Lemke, Norman L Lehman, Sandra A Rempel, Tom Mikkelsen, Chaya Brodie.
Abstract
We characterized the expression and function of the endoplasmic reticulum protein GRP78 in glial tumors. GRP78 is highly expressed in glioblastomas but not in oligodendrogliomas, and its expression is inversely correlated with median patient survival. Overexpression of GRP78 in glioma cells decreases caspase 7 activation and renders the cells resistant to etoposide- and cisplatin-induced apoptosis, whereas silencing of GRP78 decreases cell growth and sensitizes glioma cells to etoposide, cisplatin, and gamma-radiation. Thus, GRP78 contributes to the increased apoptosis resistance and growth of glioma cells and may provide a target for enhancing the therapeutic responsiveness of these tumors.Entities:
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Year: 2008 PMID: 18403493 PMCID: PMC2563046 DOI: 10.1215/15228517-2008-006
Source DB: PubMed Journal: Neuro Oncol ISSN: 1522-8517 Impact factor: 12.300