RGD Reference Report - Silencing histone deacetylase 2 using small hairpin RNA induces regression of fibrotic plaque in a rat model of Peyronie's disease. - Rat Genome Database

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Silencing histone deacetylase 2 using small hairpin RNA induces regression of fibrotic plaque in a rat model of Peyronie's disease.

Authors: Kwon, KD  Choi, MJ  Park, JM  Song, KM  Kwon, MH  Batbold, D  Yin, GN  Kim, WJ  Ryu, JK  Suh, JK 
Citation: Kwon KD, etal., BJU Int. 2014 May 19. doi: 10.1111/bju.12812.
RGD ID: 9590209
Pubmed: PMID:24841412   (View Abstract at PubMed)
DOI: DOI:10.1111/bju.12812   (Journal Full-text)

OBJECTIVES: To examine the therapeutic effect of adenovirus encoding histone deacetylase 2 (HDAC2) small hairpin RNA (Ad-HDAC2 shRNA) in a rat model of Peyronie's disease (PD) and to determine the mechanisms by which HDAC2 knockdown ameliorates fibrotic responses in primary fibroblasts derived from human PD plaque. MATERIALS AND METHODS: Rats were distributed into four groups (n = 6 per group): age-matched controls without treatment; rats in which PD has been induced (PD rats) without treatment; PD rats receiving a single injection of control adenovirus encoding scrambled small hairpin RNA (Ad-shRNA) (day 15; 1 x 108 pfu/0.1 mL phosphate-buffered saline [PBS]); and PD rats receiving a single injection of Ad-HDAC2 shRNA (day 15; 1 x 108 pfu/0.1 mL PBS) into the lesion. PD-like plaque was induced by repeated intratunical injections of 100 muL each of human fibrin and thrombin solutions on days 0 and 5. On day 30, the penis was harvested for histological examination. Fibroblasts isolated from human PD plaque were pretreated with HDAC2 small interfering (si)RNA (100 pmoL) and then stimulated with transforming growth factor (TGF)-beta1 (10 ng/mL) to determine hydroxyproline levels, procollagen mRNA, apoptosis and protein expression of poly(ADP-ribose) polymerase 1 (PARP1) and cyclin D1. RESULTS: We observed that Ad-HDAC2 shRNA decreased inflammatory cell infiltration, reduced transnuclear expression of phospho-Smad3 and regressed fibrotic plaque of the tunica albuginea in PD rats in vivo. siRNA-mediated silencing of HDAC2 significantly decreased the TGF-beta1-induced transdifferentiation of fibroblasts into myofibroblasts and collagen production, and induced apoptosis by downregulating the expression of PARP1, and decreased the expression of cyclin D1 (a positive cell-cycle regulator) in primary cultured fibroblasts derived from human PD plaque in vitro. CONCLUSION: Specific inhibition of HDAC2 with RNA interference may represent a novel targeted therapy for PD.



RGD Manual Disease Annotations    Click to see Annotation Detail View

  
Object SymbolSpeciesTermQualifierEvidenceWithNotesSourceOriginal Reference(s)
HDAC2HumanPeyronie's disease  ISOHdac2 (Rattus norvegicus) RGD 
Hdac2RatPeyronie's disease  IMP  RGD 
Hdac2MousePeyronie's disease  ISOHdac2 (Rattus norvegicus) RGD 

Objects Annotated

Genes (Rattus norvegicus)
Hdac2  (histone deacetylase 2)

Genes (Mus musculus)
Hdac2  (histone deacetylase 2)

Genes (Homo sapiens)
HDAC2  (histone deacetylase 2)


Additional Information