Key result
Upregulated PDK4 and ACOT1 drive diabetic myocardial fibrosis in cardiac fibroblasts.
Why the study?
The core molecular network linking upstream metabolic dysregulation to aberrant downstream cardiac fibroblast activation in diabetic cardiomyopathy remains largely elusive.
PDK4 and ACOT1 were identified as evolutionarily conserved metabolic hub genes driving myocardial fibrosis in diabetic cardiomyopathy, offering potential targeted anti-fibrotic therapeutic avenues.
Answers are grounded in this paper and cite their sources.
PDK4 and ACOT1 merit preclinical target validation in diabetic cardiomyopathy; leaves open translation to human anti-fibrotic therapy.
Diabetic cardiomyopathy (DCM) is a critical pathological driver of heart failure in diabetic patients, primarily characterized by progressive myocardial fibrosis. Nevertheless, the core molecular network linking upstream metabolic dysregulation to the aberrant activation of downstream cardiac fibroblasts remains largely elusive. In this study, we combined in vivo and in vitro approaches with bioinformatics analysis. A high-fat diet-induced mouse model of diabetic myocardial fibrosis was established, and transcriptome sequencing was performed to screen for hub genes, which were subsequently validated in two independent DCM datasets. Single-cell RNA sequencing revealed that PDK4 and ACOT1 were upregulated in cardiac fibroblasts under pathological conditions. In vitro experiments confirmed that high glucose induced the expression of PDK4, ACOT1, and fibrotic markers in human primary cardiac fibroblasts. Molecular docking predicted a potential interaction between PDK4 and ACOT1. Collectively, our findings identify PDK4 and ACOT1 as evolutionarily conserved metabolic hub genes associated with myocardial fibrosis in DCM, suggesting a putative "metabolism-fibrosis axis" and providing potential therapeutic targets.
No takes yet. Share an insight, caveat, or question.
Liu et al. (2026) studied Diabetic cardiomyopathy and myocardial fibrosis (n=7). High-fat diet (in vivo) and High glucose (in vitro) vs. Normal diet (10% fat) and Normal glucose (5.5 mM) was evaluated on Identification and validation of hub genes driving diabetic myocardial fibrosis. Integrative multi-omics analysis and functional experiments identified PDK4 and ACOT1 as key metabolic hub genes upregulated in cardiac fibroblasts, driving diabetic myocardial fibrosis.
Synapse has enriched 5 closely related papers on similar clinical questions. Consider them for comparative context: