Natural Killer Cell Mediated Cytotoxic Responses in the Tasmanian Devil
2011

Natural Killer Cell Responses in Tasmanian Devils

Sample size: 6 publication 10 minutes Evidence: moderate

Author Information

Author(s): Brown Gabriella K., Kreiss Alexandre, Lyons A. Bruce, Woods Gregory M.

Primary Institution: Menzies Research Institute Tasmania, University of Tasmania

Hypothesis

Can Tasmanian devils form cytotoxic antitumor responses against devil facial tumor disease (DFTD) cells?

Conclusion

Tasmanian devils can produce cytotoxic responses and antibodies against foreign tumor cells, but not against DFTD cells.

Supporting Evidence

  • Tasmanian devils did not form cytotoxic responses against DFTD cells after immunization.
  • Three out of four devils developed cytotoxic responses against K562 cells after immunization.
  • Antibody-dependent cell-mediated cytotoxicity (ADCC) was observed in the presence of immune serum.

Takeaway

Tasmanian devils can fight off some cancers with their immune system, but they struggle against a specific cancer that is threatening their survival.

Methodology

The study involved immunizing Tasmanian devils with irradiated DFTD cells and xenogenic K562 cells, followed by testing for cytotoxic responses and antibody production.

Potential Biases

Potential bias due to the limited genetic diversity of Tasmanian devils affecting immune response.

Limitations

The study was limited by the small sample size and the inability to induce effective immune responses against DFTD cells.

Participant Demographics

The study involved healthy female Tasmanian devils housed in captivity.

Statistical Information

P-Value

p<0.05

Statistical Significance

p<0.05

Digital Object Identifier (DOI)

10.1371/journal.pone.0024475

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