Please use this identifier to cite or link to this item: https://doi.org/10.1016/j.jocn.2008.06.002
Title: Glial cell-line derived neurotrophic factor (GDNF) family of ligands confer chemoresistance in a ligand-specific fashion in malignant gliomas
Authors: Ng, W.H.
Wan, G.Q. 
Peng, Z.N.
Too, H.P.
Keywords: Astrocytoma
Brain tumor
Chemotherapy
GDNF
Glioma
Issue Date: Mar-2009
Citation: Ng, W.H., Wan, G.Q., Peng, Z.N., Too, H.P. (2009-03). Glial cell-line derived neurotrophic factor (GDNF) family of ligands confer chemoresistance in a ligand-specific fashion in malignant gliomas. Journal of Clinical Neuroscience 16 (3) : 427-436. ScholarBank@NUS Repository. https://doi.org/10.1016/j.jocn.2008.06.002
Abstract: Glial cell-line derived neurotrophic factor (GDNF) is a neurotrophic factor known to promote neuronal survival of dopaminergic neurons in the embryonic midbrain as well as contribute to carcinogenesis in many cancers. Its ubiquitous presence in the central nervous system suggests a role in the mitogenesis of high-grade astrocytoma. GDNF is overexpressed in glioblastoma cell lines and human gliomas. GFRα1b is the predominant spliced receptor isoform in human gliomas and RET9 is the predominant co-receptor. Significantly there is differential overexpression of the GFRα1b spliced isoform compared to the GFRα1a spliced variant. Pre-treatment of glioblastoma cell lines with GDNF but not the alternative ligand neurturin, promoted mitogenic behaviour and conferred chemoresistance to 1,3-bis(2-chloroethyl)-1-nitrosourea (BCNU). Signaling mapping of BCNU and GDNF suggest that the ability of GDNF to promote Akt activity and inhibit JNK activity may contribute to the increased cellular survival after BCNU chemotherapy. © 2008 Elsevier Ltd. All rights reserved.
Source Title: Journal of Clinical Neuroscience
URI: http://scholarbank.nus.edu.sg/handle/10635/114641
ISSN: 09675868
DOI: 10.1016/j.jocn.2008.06.002
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