ISSN 1662-4009 (online)

ey0019.6-8 | Basic and Genetic Research of DSD | ESPEYB19

6.8. Targeting the non-coding genome for the diagnosis of disorders of sex development

G Atlas , R Sreenivasan , A Sinclair

Sex Dev. 2021;15(5-6):392-410. PMID: 34634785, doi: 10.1159/000519238. Brief Summary: This review summarizes how non-coding genomic variants are identified and validated, and why non-coding defects found in DSD patients have to be considered when investigating the genetic etiology of DSD.Accurate genetic diagnosis of 46,XY DSD patients remains crucial for early treatment and ...

ey0019.6-9 | Basic and Genetic Research of DSD | ESPEYB19

6.9. Whole exome sequencing reveals copy number variants in individuals with disorders of sex development

R Sreenivasan , K Bell , den Bergen J van , G Robevska , D Belluoccio , R Dahiya , GM Leong , J Dulon , P Touraine , EJ Tucker , K Ayers , A Sinclair

Mol Cell Endocrinol. 2022 Apr 15;546:111570. PMID: 35051551, doi: 10.1016/j.mce.2022.111570. Brief Summary: This report emphasizes the importance of screening for copy number variants (CNVs) using parallel genomic techniques for diagnosing unsolved cases of complete androgen insensitivity syndrome (CAIS) as well as other DSDs, where traditional sequencing techniques fail to detect a genetic...

ey0016.6-3 | New Functions of (Old) Genes | ESPEYB16

6.3. Human sex reversal is caused by duplication or deletion of core enhancers upstream of SOX9

B Croft , T Ohnesorg , J Hewitt , J Bowles , A Quinn , J Tan , V Corbin , E Pelosi , J van den Bergen , R Sreenivasan , I Knarston , G Robevska , DC Vu , J Hutson , V Harley , K Ayers , P Koopman , A Sinclair

Nat Commun. 2018 Dec 14;9(1):5319.doi: 10.1038/s41467-018-07784-9. PubMed [citation] PMID: 30552336Initial steps in the sex determination of the (human) testis depend on SRY regulating SOX9, but the exact mechanism that controls SOX9 expression remains unknown. These authors discovered four overlapping copy number variations (CNVs) upstr...

ey0015.6-14 | New function of old genes | ESPEYB15

6.14 GATA4 Variants in Individuals With a 46,XY Disorder of Sex Development (DSD) May or May Not Be Associated With Cardiac Defects Depending on Second Hits in Other DSD Genes

I Martinez de LaPiscina , C de Mingo , S Riedl , A Rodriguez , AV Pandey , M Fernández-Cancio , N Camats , A Sinclair , L Castaño , L Audi , CE Flück

To read the full abstract: Front Endocrinol (Lausanne). 2018 Apr 4;9:142Here, Martinez de LaPiscina et.al. investigated gene-gene interactions in 46,XY DSD. GATA4 is known to be associated with 46,XY DSD and has also been described to cause congenital heart defects. The authors characterize 3 individuals with 46,XY DSD, and GATA4 variants; 1 patient with and 2 without congenital heart defects....

ey0021.6-2 | DSD - Novel Genes and Mechanisms involved in Gonadal Development | ESPEYB21

6.2. Variants in SART3 cause a spliceosomopathy characterised by failure of testis development and neuronal defects

KL Ayers , S Eggers , BN Rollo , KR Smith , NM Davidson , NA Siddall , L Zhao , J Bowles , K Weiss , G Zanni , L Burglen , S Ben-Shachar , J Rosensaft , A Raas-Rothschild , A Jorgensen , RB Schittenhelm , C Huang , G Robevska , J van den Bergen , F Casagranda , J Cyza , S Pachernegg , DK Wright , M Bahlo , A Oshlack , TJ O'Brien , P Kwan , P Koopman , GR Hime , N Girard , C Hoffmann , Y Shilon , A Zung , E Bertini , M Milh , B Ben Rhouma , N Belguith , A Bashamboo , K McElreavey , E Banne , N Weintrob , B BenZeev , AH Sinclair

Brief Summary: This translational study reveals a novel mechanism underlying syndromic gonadal dysgenesis (GD). It introduces a condition termed INDYGON syndrome (Intellectual disability, Neurodevelopmental defects and Developmental delay with 46,XY GONadal dysgenesis).46,XY gonadal dysgenesis (GD) is a rare disorder of sex development (DSD) affecting 1-9 per 100,000 live births. Gen...