Fas-independent apoptosis in T-cell tumours induced by the CD2-myc transgene

Cameron, E.R. , Morton, J. , Johnston, C.J., Irvine, J., Bell, M., Onions, D.E., Neil, J.C. , Campbell, M. and Blyth, K. (2000) Fas-independent apoptosis in T-cell tumours induced by the CD2-myc transgene. Cell Death and Differentiation, 7(1), pp. 80-88. (doi: 10.1038/sj.cdd.4400630) (PMID:10713723)

Abstract

Depending on the cellular context, the Myc oncoprotein is capable of promoting cell proliferation or death by apoptosis. These observations suggest that apoptosis in response to deregulated gene expression may represent a natural brake to tumour development. The pathways by which Myc induces apoptosis are as yet poorly characterised although recent observations on rat fibroblasts over-expressing Myc have demonstrated a requirement for the Fas pathway. To investigate the role of Fas in Myc-induced lymphomagenesis we backcrossed CD2-myc mice onto an lpr background. Rates of tumour development and phenotypic properties, including levels of apoptosis were indistinguishable from CD2-myc controls. Further, tumour cell lines derived from mice expressing a regulatable form of Myc showed inducible apoptosis at similar rates regardless of their lpr genotype. These results show that activation of c-myc and loss of Fas do not collaborate in T lymphoma development and that Myc-induced apoptosis in T-cells occurs by Fas-independent pathways.

• Item Type: Articles
• Status: Published
• Refereed: Yes
• Glasgow Author(s) Enlighten ID: Morton, Professor Jen and Neil, Professor James and Onions, Professor David and Blyth, Professor Karen and Cameron, Professor Ewan
• Authors: Cameron, E.R., Morton, J., Johnston, C.J., Irvine, J., Bell, M., Onions, D.E., Neil, J.C., Campbell, M., and Blyth, K.
• College/School: College of Medical Veterinary and Life Sciences > School of Infection & Immunity; College of Medical Veterinary and Life Sciences > School of Medicine, Dentistry & Nursing; College of Medical Veterinary and Life Sciences > School of Biodiversity, One Health & Veterinary Medicine
• Journal Name: Cell Death and Differentiation
• Publisher: Nature Publishing Group
• ISSN: 1350-9047
• ISSN (Online): 1476-5403