Structure and expression of nuclear oncogenes in multi-stage thyroid tumorigenesis
1989

Nuclear Oncogenes in Thyroid Cancer

Sample size: 36 publication Evidence: moderate

Author Information

Author(s): F.S. Wyllie, N.R. Lemoine, E.D. Williams, D. Wynford-Thomas

Primary Institution: University of Wales College of Medicine

Hypothesis

Structural alterations of the nuclear oncogene family may play a role in the multi-stage development of tumorigenesis in human thyroid follicular cells.

Conclusion

The study concludes that there is no evidence that primary abnormalities of nuclear oncogenes play a role in thyroid follicular cell tumorigenesis.

Supporting Evidence

  • Normal thyroid expresses high levels of fos and c-myc.
  • c-myc expression was increased in all tumors, but no increase was seen in other nuclear oncogenes.
  • fos expression was reduced in follicular carcinoma, correlating with differentiation.

Takeaway

The study looked at genes that might cause thyroid cancer and found that changes in these genes are likely a result of the cancer, not a cause.

Methodology

The study involved analyzing RNA and DNA from various thyroid tumors using techniques like slot blot and Southern blot analysis.

Limitations

The study does not rule out the possibility of structural changes outside the regions probed or small deletions/point mutations.

Participant Demographics

The study analyzed 15 adenomas, 17 differentiated carcinomas, and 4 anaplastic carcinomas.

Statistical Information

P-Value

p<0.001

Statistical Significance

p<0.01

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