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Published on: November 15, 2013
Clinical significance of farnesoid X receptor expression in thyroid neoplasia
Constantinos Giaginis1,2, Nikolaos Tsoukalas3, Paraskevi Alexandrou1
1First Department of Pathology, Medical School, National & Kapodistrian University of Athens, Athens 11527, Greece.
Aim:
To evaluate the clinical significance of farnesoid X receptor (FXR) in thyroid neoplasia.
Patients & Methods:
FXR expression was assessed immunohistochemically on 88 thyroid neoplastic tissues (benign = 44, malignant = 44).
Results:
Enhanced FXR was more frequently observed in papillary carcinomas compared with hyperplastic nodules (p = 0.0489). In malignant lesions, elevated FXR was associated with capsular (p = 0.0004) and vascular invasion (p = 0.0056) and increased follicular cells' proliferative rate (p < 0.0001). Elevated FXR expression was also associated with larger tumor size (p = 0.0086), presence of lymph node metastases (p = 0.0239) and lymphatic invasion (p = 0.0086) and increased recurrence rate risk (p = 0.0239).
Conclusion:
FXR may be associated with tumor aggressiveness that affects patients' survival in thyroid neoplasia.
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