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Permanent URL to this publication: http://dx.doi.org/10.5167/uzh-1881

Weller, M; Malipiero, U; Aguzzi, A; Reed, J C; Fontana, A (1995). Protooncogene bcl-2 gene transfer abrogates Fas/APO-1 antibody-mediated apoptosis of human malignant glioma cells and confers resistance to chemotherapeutic drugs and therapeutic irradiation. Journal of Clinical Investigation, 95(6):2633-2643.

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The majority of human malignant glioma cells express Fas/APO-1 and are susceptible to Fas/APO-1 antibody-mediated apoptosis in vitro. The sensitivity of Fas/APO-1-positive glioma cell lines to Fas/APO-1 antibody-mediated killing correlates inversely with the constitutive expression of the antiapoptotic protooncogene bcl-2. Here we report that BCL-2 protein expression of human glial tumors in vivo correlates with malignant transformation in that BCL-2 immunoreactive glioma cells were more abundant in WHO grade III/IV gliomas than in grade I/II gliomas. Fas/APO-1 antibody-sensitive human glioma cell lines stably transfected with a murine bcl-2 cDNA acquired resistance to Fas/APO-1 antibody-mediated apoptosis. Forced expression of bcl-2 also attenuated TNF alpha-mediated cytotoxicity of glioma cell lines in the presence of actinomycin D and cycloheximide and conferred partial protection from irradiation and the cancer chemotherapy drugs, cisplatin and BCNU. Preexposure of the glioma cell lines to the cytokines, IFN gamma and TNF alpha, which sensitize for Fas/APO-1-dependent killing, partially overcame bcl-2-mediated rescue from apoptosis, suggesting that multimodality immunotherapy involving cytokines and Fas/APO-1 targeting might eventually provide a promising approach to the treatment of human malignant gliomas.


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Additional indexing

Item Type:Journal Article, refereed, original work
Communities & Collections:04 Faculty of Medicine > University Hospital Zurich > Institute of Neuropathology
Dewey Decimal Classification:570 Life sciences; biology
610 Medicine & health
Date:1 June 1995
Deposited On:11 Feb 2008 12:26
Last Modified:05 Apr 2016 12:20
Publisher:American Society for Clinical Investigation
Publisher DOI:10.1172/JCI117965
Related URLs:http://www.pubmedcentral.nih.gov/articlerender.fcgi?tool=pubmed&pubmedid=7539458
PubMed ID:7539458

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