Germline RET Leu56Met Variant Is Likely Not Causative of Multiple Endocrine Neoplasia Type 2
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Activating variants in the receptor tyrosine kinase REarranged during Transfection (RET) cause multiple endocrine neoplasia type 2 (MEN 2), an autosomal dominantly inherited cancer-susceptibility syndrome. The variant c.166C>A, p.Leu56Met in RET was recently reported in two patients with medullary thyroid cancer (MTC). The presence of a pheochromocytoma in one of the patients, suggested a possible pathogenic role of the variant in MEN 2A. Here, we present clinical follow up of a Danish RET Leu56Met cohort. Patients were evaluated for signs of MEN 2 according to a set of predefined criteria. None of the seven patients in our cohort exhibited evidence of MEN 2. Furthermore, we found the Leu56Met variant in our in-house diagnostic cohort with an allele frequency of 0.59%, suggesting that it is a common variant in the population. Additionally, none of the patients who harbored the allele were listed in the Danish MTC and MEN 2 registries. In conclusion, our findings do not support a pathogenic role of the Leu56Met variant in MEN 2.
Originalsprog | Engelsk |
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Artikelnummer | 764512 |
Tidsskrift | Frontiers in Endocrinology |
Vol/bind | 12 |
ISSN | 1664-2392 |
DOI | |
Status | Udgivet - 2021 |
Bibliografisk note
Publisher Copyright:
Copyright © 2021 Hansen, Borgwardt, Rasmussen, Godballe, Poulsen, Vieira, Mathiesen and Rossing.
ID: 288121991