Journal: Journal of Molecular and Cellular Cardiology Plus
Article Title: Sirtuin 4 accelerates heart failure development by enhancing reactive oxygen species-mediated profibrotic transcriptional signaling
doi: 10.1016/j.jmccpl.2025.100299
Figure Lengend Snippet: Transcriptional reprogramming of ROS signaling in c Sirt4 -Tg mice following TAC. Changes in expression of genes encoding for proteins involved in A) ROS production as determined by RNA-sequencing (n = 5–6) and B) validation of Nox4 expression by RT-qPCR ( n = 9–10); and C) antioxidant stress defense as determined by RNA-sequencing (n = 5–6) and D) validation of Gpx1 expression by RT-qPCR ( n = 9–10) in hearts of Control and c Sirt4 -Tg mice 12 weeks following TAC surgery with or without MitoQ supplementation. 2-Way ANOVA: #, effect of genotype; §, effect of treatment; %, effect of interaction. * p < 0.05; **p < 0.01; ***p < 0.001; ****p < 0.0001 using Fisher's LSD test. CAT, catalase; c Sirt4 -Tg, cardiomyocyte-specific overexpression of Sirt4 ; CYBA, cytochrome b -245, alpha chain; CYBB, cytochrome b -245, beta chain; GPX, glutathione peroxidase; MAOA, monoamine oxidase A; MAOB, monoamine oxidase B; MitoQ, mitoquinone; NOX4, NADPH oxidase 4; PRDX3, peroxiredoxin 3; SOD2, superoxide dismutase 2, mitochondrial; TAC, transverse aortic constriction; TMX, thioredoxin-related transmembrane protein; XDH, xanthine dehydrogenase.
Article Snippet: At six weeks after TAC, control and c Sirt4 -Tg mice were treated with the mitochondrially targeted antioxidant MitoQ, provided by the company MitoQ (Auckland, NZ).
Techniques: Expressing, RNA Sequencing, Biomarker Discovery, Quantitative RT-PCR, Control, Over Expression