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  • Title: Immunohistochemical demonstration of epidermal growth factor receptor and ceruloplasmin in thyroid diseases.
    Author: Song B.
    Journal: Acta Pathol Jpn; 1991 May; 41(5):336-43. PubMed ID: 1867098.
    Abstract:
    The expression of epidermal growth factor receptors (EGFR) and ceruloplasmin (CP) in thyroid diseases was investigated by immunohistochemical methods, and the results were compared with the expression of thyroglobulin (TG). Eighty-eight surgical specimens of thyroid diseases, including follicular carcinoma (7 cases), papillary carcinoma (20 cases), follicular adenoma (29 cases), adenomatous goiter (10 cases), diffuse hyperplasia (20 cases) and chronic thyroiditis (2 cases), were studied. All cases of follicular carcinoma and 18 cases (90%) of papillary carcinoma expressed the EGFR immunoreaction in the cytoplasm with a moderate to strong staining intensity. A weak immunoreaction for EGFR was noted in some benign thyroid diseases. CP showed various degrees of positivity in all cases of follicular carcinoma and 19 cases (95%) of papillary carcinoma. The benign thyroid lesions were consistently negative for this antigen, not counting one case of Hürthle cell adenoma. There was a positive correlation between EGFR and CP immunostaining intensity in thyroid carcinomas, representing higher expression of EGFR accompanied by a stronger staining intensity of CP. Except for two cases of papillary carcinoma, all cases showed immunoreaction for TG. The results indicate the enhanced expression of EGFR and CP in thyroid carcinomas. EGFR and CP thus appear to be valuable tools for differential diagnosis between benign and malignant thyroid neoplasms.
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