hrp0084fc6.1 | Gonads & DSD | ESPE2015

Correlation of AR Expression and AR Transcriptional Activity in Cultured Human Genital Fibroblasts

Hornig Nadine , Rodens Pascal , Ukat Martin , Demiri Jeta , Eckstein Anne Katrin , van der Horst Christof , Seif Christoph , Ammerpohl Ole , Holterhus Paul-Martin

Background: The androgen receptor (AR) is essential for the development of primary and secondary male characteristics and is activated by its ligand dihydrotestosterone (DHT). Reduced AR activity can cause undervirilization and infertility. We recently developed an assay to test AR function as a ligand-dependent transcriptional activator in human genital skin fibroblasts (GF). So far it is unclear, if AR expression levels correlate with AR function in the male external genital...

hrp0082fc6.2 | Gonads & DSD | ESPE2014

Next Generation Sequencing of the Androgen Receptor Gene in Patients With Androgen Insensitivity Syndrome and Controls

Hornig Nadine , Schweikert Hans-Udo , Ukat Martin , Kulle Alexandra , Welzel Maik , Wehner Gaby , Werner Ralf , Hiort Olaf , Drop Stenvert , Cools Martine , de Beaufort Carine , Siebert Reiner , Ammerpohl Ole , Holterhus Paul-Martin

Background: In a large fraction of patients with clinically presumed Androgen Insensitivity Syndrome, no mutation of the Androgen Receptor gene can be detected. However, established Sanger sequencing techniques of the AR gene are often limited to the coding region.Objective and Hypotheses: To set up a next generation sequencing (NGS) approach of the entire AR locus (including UTRs, exons, introns, up- and downstream regions) for a comprehensive ...

hrp0094p1-150 | Sex Endocrinology and Gonads B | ESPE2021

Androgen insensitivity without an androgen receptor mutation: results from a large cohort study

Hornig Nadine , Kulle Alexandra , Dombrowsky Gregor , Ammerpohl Ole , Caliebe Almuth , Schweikert Hans-Udo , Audi Laura , Cools Martin , Hannema Sabine , Stuart Annemarie Verrijn , Werner Ralf , Hiort Olaf , Holterhus Paul-Martin ,

Introduction: Androgen insensitivity syndrome (AIS) is a 46,XY difference of sex development (DSD) classically caused by mutations in the X-chromosomal androgen receptor (AR) gene. Nevertheless, in over 50% of individuals with clinical AIS no AR coding gene mutation can be found. We previously established an assay (apolipoprotein D (APOD) assay) that measures androgen dependent AR-activity in genital skin fibroblasts (GFs). Using this assay we identified a gro...