Exploring CACNA1H as a potential candidate biomarker for calcific aortic valve disease

Area of Science:

• Cardiovascular Biology
• Molecular Medicine
• Genetics

Background:

• Calcific aortic valve disease (CAVD) is a common cardiovascular condition linked to significant mortality.
• Mechanical stress is a critical factor in CAVD pathogenesis, necessitating research into mechanosensitive ion channel-related genes (MICRGs).

Purpose of the Study:

• To identify key genes involved in CAVD pathogenesis using transcriptomic data.
• To investigate the role of CACNA1H in CAVD progression and its potential as a therapeutic target.

Main Methods:

• Differential gene expression analysis of CAVD patient data (GSE83453).
• Weighted gene co-expression network analysis (WGCNA) and MICRG identification.
• In vitro and in vivo experiments to assess CACNA1H inhibition effects.
• Analysis of the NF-κB signaling pathway.

Main Results:

• CACNA1H was identified as a candidate gene through the intersection of DEGs, WGCNA modules, and MICRGs.
• External datasets (GSE51472, GSE55492) validated CACNA1H as a significant gene in CAVD.
• CACNA1H inhibition was shown to alleviate CAVD progression by suppressing osteogenic response.
• CACNA1H inhibition attenuated P65 phosphorylation, impacting the NF-κB pathway.

Conclusions:

• CACNA1H plays a crucial role in CAVD pathogenesis by regulating the osteogenic response via the NF-κB pathway.
• CACNA1H inhibition presents a promising therapeutic strategy for managing CAVD.
• CACNA1H may serve as a valuable biomarker for CAVD diagnosis and prognosis.