Transcriptomic Analysis of Histone Methyltransferase Setd7 Knockdown and Phenethyl Isothiocyanate in Human Prostate Cancer Cells.

BACKGROUND/AIM:Transcriptomic analysis was performed to evaluate the differential gene expression profiles of Setd7 knockdown (KD) and the effects of phenethyl isothiocyanate (PEITC) in human prostate cancer (PCa) LNCaP cells. MATERIALS AND METHODS:RNA isolated from wild-type and Setd7-KD LNCaP cells in the presence or absence of PEITC was subjected to microarray analysis followed by Ingenuity® Pathway Analysis (IPA). RESULTS:Setd7 KD impacted a larger set of genes and caused a higher fold change compared to PEITC treatment. Several signaling pathways were altered particularly inflammation-related TNFR signaling and PTEN/PI3K/AKT signaling by Setd7 KD and PEITC. Interestingly, PEITC and Setd7 KD at a small subset of genes that could be potential molecular targets. CONCLUSION:This study offers new insights into the mechanisms of action of the epigenetic modifier Setd7 and the effects of PEITC treatment in PCa cells and enhances our understanding of the potential cancer preventive/treatment effects of isothiocyanate compounds such as PEITC in PCa.

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