The global view of mRNA-related ceRNA cross-talks across cardiovascular diseases

Area of Science:

• Molecular Biology
• Genomics
• Cardiovascular Research

Background:

• Competing endogenous RNA (ceRNA) networks, which regulate gene expression through microRNA (miRNA) sponging, are increasingly recognized for their role in disease pathogenesis.
• While ceRNA mechanisms are implicated in various complex diseases, a systematic analysis of their role across multiple cardiovascular diseases (CVDs) is lacking.

Purpose of the Study:

• To construct and analyze the global landscape of messenger RNA (mRNA)-related ceRNA cross-talk in eight major CVDs.
• To identify common features and core networks underlying different CVDs.
• To explore potential mechanistic links between ceRNA cross-talk and known disease pathways.

Main Methods:

• Analysis of approximately 2,800 samples from eight major CVDs to build comprehensive mRNA-related ceRNA networks.
• Comparative analysis of network topology, including identification of hub ceRNAs.
• Integration of CVD-related pathway genes with ceRNA-ceRNA interactions to identify common functional modules.

Main Results:

• Identification of a common core ceRNA network shared across the studied CVDs, suggesting conserved regulatory mechanisms.
• Discovery of three distinct types of hub ceRNAs, potentially indicating diverse roles in biological processes.
• Uncovering of common modules formed by the interplay of pathway genes and ceRNA interactions, highlighting specific mechanistic underpinnings.
• Investigation into the mechanistic linkage between pathway cross-talk and ceRNA cross-talk.

Conclusions:

• This study provides the first systematic characterization of global mRNA-related ceRNA cross-talk across multiple CVDs.
• The identified common ceRNA network and modules offer novel targets for understanding CVD pathogenesis.
• These findings present a new layer of gene regulation in cardiology and may illuminate future therapeutic strategies.