Oncogene Expression in Thyroid Tumours
Author Information
Author(s): R. Aasland, J.R. Lillehaug, R. Male, O. J0sendal, J.E. Varhaug, K. Kleppe
Primary Institution: University of Bergen
Hypothesis
Do the oncogenes c-erbB2/neu and c-erbB contribute to the development and maintenance of malignant thyroid tumours?
Conclusion
The study found that c-erbB2/neu and c-erbB oncogenes are expressed at higher levels in papillary carcinomas and lymph node metastases compared to non-tumour tissue.
Supporting Evidence
- The c-erbB2/neu and c-erbB oncogenes showed two- to three-fold higher levels of RNA in papillary carcinomas and lymph node metastases.
- Neither rearrangements nor amplifications of oncogenes were observed in the thyroid tumours.
- High levels of c-myc and c-fos RNA were found in both tumour and non-tumour tissues.
Takeaway
This study looked at thyroid tumours and found that certain genes, called oncogenes, are more active in cancerous tissues than in normal ones.
Methodology
Biopsies from thyroid tumours and non-tumour tissues were analyzed for oncogene expression using slot-blot hybridization.
Limitations
The study did not investigate the functional implications of oncogene expression levels.
Participant Demographics
The study included 8 patients with various types of thyroid tumours, including papillary carcinomas, adenomas, and anaplastic carcinoma.
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