Document Detail

Does the devil facial tumour produce immunosuppressive cytokines as an immune evasion strategy?
MedLine Citation:
PMID:  23465357     Owner:  NLM     Status:  Publisher    
A unique transmissible cancer known as the Devil Facial Tumour Disease (DFTD) is threatening the Tasmanian devil (Sarcophilus harrisii) with extinction. This disease is highly unusual as it is one of only two naturally occurring contagious cancers. The tumour is transmitted by biting and is able to spread between genetically diverse hosts. Why the tumours are not recognised as foreign and rejected by the host immune system in unknown. One mechanism that allows human cancers to avoid immune suppression is by producing cytokines which down-regulate the hosts immune system. Four key cytokines involved in this process are TGFβ1, VEGF-A, IL-10 and IL-6. In this study we investigated whether these cytokines could be involved in immune avoidance in DFTD. To do this we compared expression of these cytokines in tumour and control tissues using qPCR. We found no significant upregulation of any of these cytokines in tumour tissue. We therefore conclude that these cytokines do not play a role in the spread of DFTD. Further work will be needed to elucidate how DFTD cells avoid immune rejection.
Katrina Morris; Katherine Belov
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2013-2-13
Journal Detail:
Title:  Veterinary immunology and immunopathology     Volume:  -     ISSN:  1873-2534     ISO Abbreviation:  Vet. Immunol. Immunopathol.     Publication Date:  2013 Feb 
Date Detail:
Created Date:  2013-3-7     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  8002006     Medline TA:  Vet Immunol Immunopathol     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Copyright Information:
Crown Copyright © 2013. Published by Elsevier B.V. All rights reserved.
Faculty of Veterinary Science, University of Sydney, RMC Gunn, B19, Sydney, NSW 2006, Australia.
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