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Functional Gene Module-Based Identification of Phillyrin as an Anticardiac Fibrosis Agent
Lei Wang1, Wuxia Zhang2, Ziwen Lu1
1Key Laboratory of Chinese Internal Medicine of Ministry of Education and Dongzhimen Hospital, Beijing University of Chinese Medicine, Beijing, China.
Abstract:
Cardiac fibrosis (CF) greatly influences the therapeutic effects of heart diseases and remains an urgent challenge in clinical therapy. Till now, only a few methods are used to find potential anti-CF drugs effectively. This study aimed to construct a gene functional module to represent the core pathological process of CF and screen antifibrotic agents capable of decreasing the expression of the gene functional module. First, three CF marker genes Postn, Ddr2, and Pdgfra were selected to identify the corresponding highest coexpressed genes in the genome-based transcriptional profiles of human hearts. Both the marker genes and the coexpressed genes formed the CF-related gene functional module. Second, the correlation of the module with the CF process was measured in a collection of gene expression profiles of heart diseases to evaluate the participation of the functional module in heart diseases. Third, the anti-CF effects of phillyrin were predicted by the enrichment analysis of the module in the phillyrin-induced transcriptional profile. Finally, the myocardial infarction animal model was used to validate the cardioprotective and anti-CF effects of phillyrin experimentally. The results showed that phillyrin was a novel antifibrotic agent in heart diseases.
Insights
This study identified a gene module linked to cardiac fibrosis (CF) and screened for drugs. Phillyrin demonstrated significant antifibrotic effects in heart disease models.
Area of Science:
- Cardiovascular Biology
- Molecular Medicine
- Pharmacology
Background:
- Cardiac fibrosis (CF) significantly impacts heart disease treatment outcomes.
- Effective methods for identifying anti-CF drugs are limited.
- Developing novel therapeutic strategies for CF is a clinical priority.
Purpose of the Study:
- To construct a gene functional module representing the core pathology of CF.
- To screen for antifibrotic agents targeting this module.
- To validate the efficacy of potential agents in preclinical models.
Main Methods:
- Selected CF marker genes (Postn, Ddr2, Pdgfra) to build a genome-wide coexpression network module.
- Assessed module correlation with CF in human heart disease gene expression profiles.
- Utilized enrichment analysis to predict antifibrotic effects of phillyrin.
- Validated phillyrin's effects in a myocardial infarction animal model.
Main Results:
- A CF-related gene functional module was successfully constructed.
- The module showed significant correlation with cardiac fibrosis progression.
- Phillyrin was identified as a potential antifibrotic agent.
- Experimental validation confirmed phillyrin's cardioprotective and anti-CF effects.
Conclusions:
- Phillyrin is a promising novel antifibrotic agent for treating heart diseases.
- The gene functional module approach is effective for identifying anti-CF drugs.
- Targeting this module offers a new therapeutic strategy for cardiac fibrosis.
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