Noncoding RNAs in myocardial ischemia/reperfusion injury and repair

Area of Science:

• Cardiovascular Biology
• Molecular Medicine
• RNA Biology

Background:

• Myocardial ischemia/reperfusion (I/R) injury causes oxidative stress, cardiomyocyte death, and heart failure.
• Noncoding RNAs (ncRNAs) are critical regulators in cardiac remodeling following I/R.
• ncRNAs, including miRNAs, lncRNAs, and circRNAs, influence multiple pathological processes in the heart.

Purpose of the Study:

• To review recent advancements in ncRNA-mediated regulation of myocardial I/R injury.
• To summarize the role of ncRNAs in cardiac cell death, angiogenesis, fibrosis, and immune responses.
• To discuss the therapeutic potential of ncRNAs for I/R injury and future research directions.

Main Methods:

• Literature review of studies on ncRNAs in myocardial I/R injury.
• Analysis of ncRNA involvement in cardiac cell death pathways (apoptosis, necroptosis, ferroptosis, pyroptosis, PANoptosis).
• Examination of ncRNA roles in cardiac fibrosis, angiogenesis, macrophage function, and intercellular communication.

Main Results:

• ncRNAs are key regulators of diverse cellular processes during myocardial I/R.
• Specific ncRNAs modulate cardiomyocyte death, inflammatory responses, and fibrotic remodeling.
• ncRNAs impact macrophage polarization and intercellular signaling in the injured heart.

Conclusions:

• ncRNAs play a central role in the molecular and cellular responses to myocardial I/R.
• Targeting ncRNAs presents a promising therapeutic avenue for mitigating I/R-induced heart damage.
• Further research into ncRNA mechanisms and therapeutic applications is warranted for treating heart failure.