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© Research
Project

Identification of key components of the human sex-determination pathway. The DSD genome project.

Scientific Fields
Diseases
Organisms
Applications
Technique
Starting Date
07
Jun 2015
Status
Ongoing
Members
4
Structures
1

About

Disorders/differences in Sex Development (DSD) are defined as congenital conditions with discordant development of chromosomal and gonadal/anatomical sex and cover a wide range of phenotypes that involve the endocrine and reproductive systems. In the last 30 years, we have put together a large collection of biological material from patients with urogenital anomalies, through collaborations with clinical centers worldwide. Much of our research on SD focuses on the genomic analysis of individuals with errors of SD (XY gonadal dysgenesis or XX testicular DSD). This unique biological resource has been central to the identification of genetic factors involved in SD and how variation in these genes leads to DSD. The genomic analysis, using whole genome/exome sequencing of DSD continues to be a powerful tool for discovering novel genes and regulatory elements required for human SD. The genomic approach will be extended to include burden analysis to identify variants causing or contributing to sex-reversal. Using this approach we have identified most of the new genes known to be involved in human DSD and sex-determination. This includes the genes NR5A1, DMRT1, DHX37, FOG2, GATA4, ZNRF3, NR2F2, SOX8, PBX1, TSPYL1, and SART3. The functional analysis of these genes and variants that cause DSD has offered unique insights into the mechanism of human sex-determination. These results are also translated to the clinic for an improved genetic diagnosis.

Fundings