Romano R, Ellis LS, Yu N, Bellizzi J, Brown TC, Korah R, Carling T, Costa-Guda J, Arnold A. Mutational Analysis of
ZFY in Sporadic Parathyroid Adenomas.
J Endocr Soc 2017;
1:313-316. [PMID:
29264489 PMCID:
PMC5686765 DOI:
10.1210/js.2017-00031]
[Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/31/2016] [Accepted: 02/22/2017] [Indexed: 01/14/2023] Open
Abstract
Context:
The molecular pathogenesis of sporadic parathyroid adenomas is incompletely understood, with alterations in cyclin D1/PRAD1 and MEN1 most firmly established as genetic drivers. The gene encoding the X-linked zinc finger protein (ZFX) has recently been implicated in the pathogenesis of a subset of parathyroid adenomas after recurrent, hotspot-focused somatic mutations were identified. ZFX escapes X inactivation and is transcribed from both alleles in women, and a highly homologous gene encoding the Y-linked zinc finger protein (ZFY) provides dosage compensation in males.
Objective:
We sought to investigate the role of ZFY mutation in sporadic parathyroid adenoma.
Intervention:
Polymerase chain reaction and Sanger sequencing were used to examine DNA from typically presenting, sporadic (nonfamilial, nonsyndromic) parathyroid adenomas from male patients for mutations within the ZFY gene.
Results:
No mutations were identified among 117 adenomas.
Conclusions:
The absence of ZFY mutations in this series suggests that ZFY rarely, if ever, acts as a driver oncogene in sporadic parathyroid adenomas. The apparent differences in tumorigenic capabilities between the closely related zinc finger proteins ZFX and ZFY suggest that structure-function studies could represent an opportunity to gain insight into neoplastic processes in the parathyroid glands.
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