Differential expression of galectin-3 in medullary thyroid carcinoma and C-cell hyperplasia

Antongiulio Faggiano, Monique Talbot, Ludovic Lacroix, Jean Michel Bidart, Eric Baudin, Martin Schlumberger, Bernard Caillou

Research output: Contribution to journalArticlepeer-review


OBJECTIVE AND DESIGN: Galectin-3 is a β-galactoside-binding protein that plays a role in cell adhesion and tumour progression. It was shown recently to diagnose malignant follicular thyroid lesions accurately. The reliability of this marker in the differential diagnosis between medullary thyroid carcinoma and C-cell hyperplasia was studied by immunohistochemistry. PATIENTS: Tissue specimens were obtained from 34 patients belonging to families with medullary thyroid carcinoma who underwent prophylactic thyroidectomy for RET gene mutation and/or abnormally increased plasma calcitonin levels. RESULTS: Galectin-3 was expressed in 23 of 25 cases of medullary thyroid carcinoma and in none of the nine cases of C-cell hyperplasia only, giving a sensitivity of 92% and a specificity of 100% for the diagnosis of carcinoma. A significant association was found between higher galectin-3 expression and occurrence of lymph node metastases (P <0.05). CONCLUSIONS: Galectin-3 is a reliable diagnostic marker of medullary thyroid carcinoma, and its use may provide relevant information for prognosis and therapy.

Original languageEnglish
Pages (from-to)813-819
Number of pages7
JournalClinical Endocrinology
Issue number6
Publication statusPublished - Dec 1 2002

ASJC Scopus subject areas

  • Endocrinology


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