TWENTY-FOUR GENES ARE UPREGULATED IN PATIENTS WITH HYPOSPADIAS
Karabulut R1, Turkyilmaz Z1, Sonmez K1, Kumas G2, Ergun SG2, Ergun MA2,*, Basaklar AC1
*Corresponding Author: Mehmet A. Ergun, M.D., Ph.D., Department of Medical Genetics, Gazi University Faculty of Medicine, Besevler, Ankara, Turkey; Tel.: +90 312 2024637; Fax. +90 312 2024635; E-mail: aliergun@gazi.edu.tr
page: 39
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Abstract

Hypospadias is a congenital hypoplasia of the penis, with displacement of the urethral opening along the ventral surface, and has been reported to be one of the most common congenital anomalies, occurring in approximately 1:250 to 1:300 live births. As hypospadias is reported to be an easily diagnosed malformation at the crossroads of genetics and environment, it is important to study the genetic component in order to elucidate its etiology. In this study, the gene expression profiles both in human hypospadias tissues and normal penile tissues were studied by Human Gene Expression Array. Twentyfour genes were found to be upregulated. Among these, ATF3 and CYR61 have been reported previously. Other genes that have not been previously reported were also found to be upregulated: BTG2, CD69, CD9, DUSP1, EGR1, EIF4A1, FOS, FOSB, HBEGF, HNRNPUL1, IER2, JUN, JUNB, KLF2, NR4A1, NR4A2, PTGS2, RGS1, RTN4, SLC25A25, SOCS3 and ZFP36 (p <0.05). Further studies including genome-wide association studies (GWAS) with expression studies in a large patient group will help us for identifiying the candidate gene(s) in the etiology of hypospadias.



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