Expression of the Truncated Somatostatin Receptor Variant Sstr5TMD4 in Medullary Thyroid Carcinoma

#986

Introduction: Medullary thyroid carcinoma (MTC) is a rare tumor originating from thyroid parafollicular C cell. The only available treatment is surgical resection, which is not always feasible. Somatostatin and its receptors are expressed both in normal human thyroid C cells and in MTC, but their role has not been fully elucidated. The discovery of a truncated isoform of Sstr5, Sstr5TMD4, associated with increased invasiveness and aggressiveness in breast cancer, has opened new insight in the role of Sstr in cancers.

Aim(s): To evaluate Sstr5TMD4 expression in a series of human MTC at different stages, and to explore the role of Sstr5TMD4 in TT human MTC cell line.

Materials and methods: Sstr5TMD4 expression correlates with disease stage and that it is higher in MTC metastases v. primary site and in sporadic v. hereditary cases.

Conference: 11th Annual ENETSConcerence (2014)

Presenting Author: Zatelli M

Authors: Molè D, Gahete M, Gagliano T, Tagliati F, Castano J,

Keywords: MTC, SSTR5TMD4,

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