PMID- 19013509 OWN - NLM STAT- MEDLINE DCOM- 20090220 LR - 20211020 IS - 1879-0038 (Electronic) IS - 0378-1119 (Print) IS - 0378-1119 (Linking) VI - 430 IP - 1-2 DP - 2009 Feb 1 TI - Sildenafil augments early protective transcriptional changes after ischemia in mouse myocardium. PG - 30-7 LID - 10.1016/j.gene.2008.10.009 [doi] AB - Recently, targeting cyclic-GMP specific phosphodiesterase-5 (PDE5) has attracted much interest in several cardiopulmonary diseases, in particular myocardial ischemia (MI). Although multiple mechanisms were postulated for these beneficial effects at cellular level, early transcriptional changes were unknown. The aim of present study was to examine gene expression profiles in response to MI after 24 h of ischemia in murine model and compare transcriptional modulation by sildenafil, a popular phosphodiesterase 5 (PDE5) inhibitor. Mice were divided into four groups: Control sham (C), Sildenafil sham (S), Control MI (CMI) and Sildenafil MI (SMI). Sildenafil was given at a dose of 0.7 mg/kg intraperitoneally 30 min before LAD occlusion. cDNA microarray analysis of peri-infarct tissue was done using a custom cloneset and employing a looped dye swap design. Replicate signals were median averaged and normalized using LOWESS algorithm. R/MAANOVA analysis was used and false discovery rate corrected permutation p-values <0.005 were employed as significance thresholds. 156 genes were identified as significantly regulated demonstrating fold difference >1.5 in at least one of the four groups. 52 genes were significantly upregulated in SMI compared to CMI. For a randomly chosen subset of genes (9), microarray data were confirmed through real time RT-PCR. The differentially expressed genes could be classified into following groups based on their function: phosphorylation/dephosphorylation, apoptosis, differentiation, ATP binding. Our results suggest that sildenafil treatment might regulate early genetic reprogramming strategy for preservation of the ischemic myocardium. FAU - Vidavalur, Ramesh AU - Vidavalur R AD - Molecular Cardiology and Angiogenesis Laboratory, Department of Surgery, University of Connecticut Health Center; 263 Farmington Avenue, Farmington, CT 06030-1110, USA. FAU - Penumathsa, Suresh Varma AU - Penumathsa SV FAU - Thirunavukkarasu, Mahesh AU - Thirunavukkarasu M FAU - Zhan, Lijun AU - Zhan L FAU - Krueger, Winfried AU - Krueger W FAU - Maulik, Nilanjana AU - Maulik N LA - eng GR - HL 69910/HL/NHLBI NIH HHS/United States GR - R01 HL069910/HL/NHLBI NIH HHS/United States GR - R01 HL056803-10/HL/NHLBI NIH HHS/United States GR - R01 HL069910-05/HL/NHLBI NIH HHS/United States GR - HL 56803/HL/NHLBI NIH HHS/United States GR - R29 HL056803/HL/NHLBI NIH HHS/United States GR - R01 HL056803/HL/NHLBI NIH HHS/United States PT - Journal Article PT - Research Support, N.I.H., Extramural DEP - 20081025 PL - Netherlands TA - Gene JT - Gene JID - 7706761 RN - 0 (Piperazines) RN - 0 (Purines) RN - 0 (Sulfones) RN - BW9B0ZE037 (Sildenafil Citrate) SB - IM MH - Animals MH - Gene Expression Profiling MH - Gene Expression Regulation/drug effects MH - Male MH - Mice MH - Mice, Inbred C57BL MH - Myocardial Ischemia/*genetics/*prevention & control MH - Myocardium/*metabolism MH - Oligonucleotide Array Sequence Analysis MH - Piperazines/*pharmacology MH - Purines/pharmacology MH - Reproducibility of Results MH - Reverse Transcriptase Polymerase Chain Reaction MH - Sildenafil Citrate MH - Sulfones/*pharmacology MH - Transcription, Genetic/*drug effects PMC - PMC2650511 MID - NIHMS90451 EDAT- 2008/11/18 09:00 MHDA- 2009/02/21 09:00 PMCR- 2010/02/01 CRDT- 2008/11/18 09:00 PHST- 2008/08/14 00:00 [received] PHST- 2008/10/01 00:00 [revised] PHST- 2008/10/02 00:00 [accepted] PHST- 2008/11/18 09:00 [pubmed] PHST- 2009/02/21 09:00 [medline] PHST- 2008/11/18 09:00 [entrez] PHST- 2010/02/01 00:00 [pmc-release] AID - S0378-1119(08)00532-5 [pii] AID - 10.1016/j.gene.2008.10.009 [doi] PST - ppublish SO - Gene. 2009 Feb 1;430(1-2):30-7. doi: 10.1016/j.gene.2008.10.009. Epub 2008 Oct 25.