DUSP5 and PHLDA1 Mutations in Mature Cystic Teratomas of the Ovary Identified on Whole-exome Sequencing May Explain Teratoma Characteristics

Overview

Journal Hum Genomics

Publisher Biomed Central

Specialty Genetics

Date 2022 Oct 27

PMID 36289533

Authors

Wen-Chung Wang

Yen-Chein Lai

Affiliations

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Abstract

Background: Mature cystic teratomas of the ovary are the most common type of germ cell tumor, comprising 33% of ovarian tumors. Studying these tumors may result in a better understanding of their stepwise developmental processes and molecular bases and provide useful information for the development of tissue-engineering technologies.

Methods: In the present study, 9 mature cystic teratomas of the ovary were analyzed by whole-exome sequencing and the results were compared with the Catalogue of Somatic Mutations in Cancer and dbSNP databases.

Results: Mutations were validated in 15 genes with alterations in all 9 (100%) samples and changes in protein coding. The top 10 mutated genes were FLG, MUC17, MUC5B, RP1L1, NBPF1, GOLGA6L2, SLC29A3, SGK223, PTGFRN, and FAM186A. Moreover, 7 variants in exons with changes in protein coding are likely of importance in the development of mature cystic teratomas of the ovary, namely PTGFRN, DUSP5, MPP2, PHLDA1, PRR21, GOLGA6L2, and KRTAP4-2.

Conclusions: These genetic alterations may play an important etiological role in teratoma formation. Moreover, novel mutations in DUSP5 and PHLDA1 genes found on whole-exome sequencing may help to explain the characteristics of teratomas.

Citing Articles

Amplifications of EVX2 and HOXD9-HOXD13 on 2q31 in mature cystic teratomas of the ovary identified by array comparative genomic hybridization may explain teratoma characteristics in chondrogenesis and osteogenesis.

Wang W, Hou T, Kuo C, Lai Y J Ovarian Res. 2024; 17(1):129.

PMID: 38907278 PMC: 11193297. DOI: 10.1186/s13048-024-01458-5.

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