Exp Clin Endocrinol Diabetes 2017; 125(04): 218-222
DOI: 10.1055/s-0042-121661
Article
© Georg Thieme Verlag KG Stuttgart · New York

Search of the p.M918T Mutation in the RET Oncogene in Mexican Adult Patients with Medullary Thyroid Carcinoma

Erika Ruiz-Garcia
1   Translational Medicine Laboratory, National Cancer Institute, Mexico City, Mexico City
,
Silvia Vidal-Millan
2   Molecular Diagnostic Laboratory, National Cancer Institute, Mexico City
,
Alicia Lopez-Yañez
1   Translational Medicine Laboratory, National Cancer Institute, Mexico City, Mexico City
,
José Antonio Posada Torres
3   Head and Neck Cancer Deparment, National Cancer Institute, Mexico City
,
Jorge Alberto Guadarrama-Orozco
1   Translational Medicine Laboratory, National Cancer Institute, Mexico City, Mexico City
,
Leonardo Saul Lino-Silva
4   Onco-Pathology Department, National Cancer Institute, Mexico City
,
Abelardo Meneses-Garcia
1   Translational Medicine Laboratory, National Cancer Institute, Mexico City, Mexico City
,
Horacio Astudillo-de la Vega
5   Traslational Cancer Research Unit, Centro Medico Nacional Siglo XXI IMSS
,
Martin Granados Garcia
3   Head and Neck Cancer Deparment, National Cancer Institute, Mexico City
› Author Affiliations
Further Information

Publication History

received 08 August 2016
first decision 05 October 2016

accepted 18 November 2016

Publication Date:
06 February 2017 (online)

Abstract

Inherited mutations in the RET proto-oncogene, which encodes a receptor tyrosine kinase, predispose individuals to the multiple endocrine neoplasia type 2 (MEN 2) cancer syndromes. The major component tumor of these syndromes is medullary thyroid carcinoma (MTC). To date, somatic mutations in RET have been identified in tumors from individuals with MEN 2 finding. RET M918T mutation is present in 95% of the MEN2B cases, and approximately 50% of sporadic MTCs harbor this mutation. We performed a mutational analysis in 17 cases of Medullary thyroid carcinoma, the somatic missense mutation at codon 918 of RET was found in 2 of the 17 MTCs, and one case presented MEN2 phenotype including MTC. The percentage of RET M918T mutation is similar in Mexican MTC patients to other series, although other mutations could be implicated in our population.