Decorin as a new treatment alternative in Peyronie's disease: Preliminary results in the rat model

Akman T., Tefekli A., Armagan A., Kilicaslan I., Ozerman B., Tepeler A., ...More

Andrologia, vol.45, no.2, pp.101-106, 2013 (SCI-Expanded) identifier identifier identifier

  • Publication Type: Article / Article
  • Volume: 45 Issue: 2
  • Publication Date: 2013
  • Doi Number: 10.1111/j.1439-0272.2012.01318.x
  • Journal Name: Andrologia
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.101-106
  • Istanbul University Affiliated: Yes


The purpose of this study is to investigate the effect of decorin, a naturally occurring proteoglycan with anti-transforming growth factor beta (TGF-β) activity, on the rat model of Peyronie's disease (PD). Twenty-five adult male Sprague-Dawley rats were divided in three groups: I) TGF-β (0.5 μg) injected (n: 8); II) TGF-β injected and decorin treated (n: 8); and III) controls (n: 9). Decorin (0.5 μg per day) was given with intracavernous injection on the second, third, fourth and fifth day following TGF-β injection. All rats underwent electrical stimulation of the cavernous nerve after 6 weeks. Intracavernosal and arterial blood pressures were measured during this procedure. Cross-sections of the rat penises were examined using Mason trichrome and H&E stains. Statistical analyses were carried out using one-way anova. Histopathological examinations confirmed the Peyronie's-like condition in TGF-β-injected rats, which exhibited a thickening of the tunica albuginea (TA), when compared to controls. Disorganisation of collagen on the TA was also prominent in TGF-β-injected rats, but not in decorin-treated and control rats. Decorin-treated rats showed significantly higher maximal intracavernosal pressure (MIP) responses to cavernous nerve stimulation, when compared to group 1 (P < 0.05). Our results indicate that decorin antagonises the effects of TGF-β in the rat model of PD and prevents diminished erectile response to cavernous nerve stimulation. © 2012 Blackwell Verlag GmbH.