Duplication of SOX9 associated with 46,XX ovotesticular disorder of sex development

Berenice López-Hernández, Juan Pablo Méndez, Ramón Mauricio Coral-Vázquez, Jesús Benítez-Granados, Juan Carlos Zenteno, Vanessa Villegas-Ruiz, Raúl Calzada-León, Daniela Soderlund, Patricia Canto

Research output: Contribution to journalArticlepeer-review

12 Scopus citations

Abstract

Research question: The purpose of the present study was to investigate whether ten unrelated SRY-negative individuals with this sex differentiation disorder presented a double dose of SOX9 as the cause of their disease. Design: Ten unrelated SRY-negative 46,XX ovotesticular disorder of sexual development (DSD) subjects were molecularly studied. Multiplex-ligation dependent probe amplification (MLPA) and quantitative real-time PCR analysis (qRT-PCR) for SOX9 were performed. Results: The MLPA analysis demonstrated that one patient presented a heterozygous duplication of the entire SOX9 coding region (above 1.3 value of peak ratio), as well as at least a ~ 483 kb upstream duplication. Moreover, no duplication of other SOX9 probes was observed corresponding to the region between −1007 and −1500 kb upstream. A qRT-PCR analysis showed a duplication of at least −581 kb upstream and ~1.63 kb of the coding region that encompasses exon 3. The limits of the duplication were mapped approximately from ~71539762 to 72122741 of Chr17. No molecular abnormalities were found in the remaining nine patients. Conclusion: This study is thought to be the first report regarding a duplication of SOX9 that is associated with the presence of 46,XX ovotesticular DSD, encompassing at least −581 kb upstream, and the almost entire coding region of the gene.

Original languageEnglish
Pages (from-to)107-112
Number of pages6
JournalReproductive BioMedicine Online
Volume37
Issue number1
DOIs
StatePublished - Jul 2018

Keywords

  • 46,XX ovotesticular DSD
  • Heterozygous duplication
  • RevSex region
  • SOX9

Fingerprint

Dive into the research topics of 'Duplication of SOX9 associated with 46,XX ovotesticular disorder of sex development'. Together they form a unique fingerprint.

Cite this