Growth Regulation of Thyroid and Thyroid Tumors in Humans |
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Authors: | Peter E. Goretzki Dietmar Simon Cornelia Dotzenrath Klaus-Martin Schulte Hans-Dietrich Röher |
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Affiliation: | Klinik für Allgemeine und Unfallchirurgie, Heinrich-Heine-Universit?t, Moorenstrasse 5, D-40225 Düsseldorf, Germany, DE
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Abstract: | In a study of growth regulation of the human thyroid gland and thyroid tumors we investigated the impact of iodine and that of the thyroid-specific growth-stimulating hormone TSH. Further studies included locally active growth factors such as the epidermal growth factor, insulin-like growth factor, and tissue transforming growth factors alpha and beta. In addition to studies of growth regulation by the various growth factors in mostly normal thyrocytes, the impact of tumor-specific mutations in oncogenes and tumor-suppressor genes was investigated. The results demonstrated distinct changes in tissue specificity and sensitivity to external stimuli. This rather complex view on thyrocyte growth regulation may be confusing, but it describes the biologic reality more precisely. Increased knowledge of the regulatory processes may lead to the development of new tumor- and patient-specific therapeutic approaches, especially for preventing benign goiter recurrence and for treating follicular and papillary thyroid cancers. |
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