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Updated: Jul 18, 2026

An Ex vivo Culture System to Study Thyroid Development
Published on: June 6, 2014
C8orf4/TC-1 (thyroid cancer-1) gene expression in thyroid cancer and goiter
Poliana Cristina de Melo Martins1, Orlando Parise Junior, Cora Pereira Hors
1Laboratory of Molecular Genetics, São Paulo, Brazil.
Background:
The expression of the thyroid cancer-1(TC-1) gene seems to be related with malignant transformation in the thyroid tissue.
Objective:
We evaluated the potential use of TC-1 gene expression as a marker of malignancy in thyroid nodules.
Methods:
A total of 92 frozen thyroid samples were studied, including 46 samples from thyroid nodules (19 papillary carcinomas, 1 follicular carcinoma, 24 adenomatous goiters, and 2 follicular adenomas) and 46 samples from normal surrounding thyroid tissue. Total RNA was extracted and TC-1 expression was assessed by semiquantitative Multiplex PCR. Results were verified using real-time RT-PCR in some of the samples.
Results:
Overall mean TC-1 gene expression (normalized by the ABL gene) was 1.73 +/- 1.67 (0.33-9.33). There was a significant difference (p < 0.001) between TC-1 gene expression in benign thyroid lesions (1.07 +/- 0.10) and carcinomas (2.73 +/- 0.51).
Conclusion:
Our results suggest that TC-1 gene expression may be useful in the differential diagnosis of goiters and thyroid papillary carcinomas.
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