Abstract
We have developed mouse models for tumors affecting the epithelial cellular compartment of the thyroid which has been targeted using the bovine thyroglobulin (bTg) promoter. Transgenic mice expressing the human activated c-Ha-Ras gene developed papillary thyroid carcinomas demonstrating the oncogenic potential of activated Ras gene in the thyroid gland. Transgenic mice express the mutant form of the alpha subunit of the adenylate cyclase-coupled G alpha s with mutations at codon 201 (R201H). The expression of this mutant transgene is not by itself sufficient to produce benign tumors or even hyperplasia, but the transgenic mice have inherited a predisposition to develop thyroid adenomas.
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