Mental disorders after myocardial infarction: potential mediator role for chemokines in heart-brain interaction?

Area of Science:

• Cardiology
• Neuroscience
• Psychiatry

Background:

• Acute myocardial infarction (MI) is a major cause of global mortality and morbidity.
• Cardiac patients frequently exhibit increased depression and mental health disorders post-MI, surgery, or catheterization.
• The heart-brain interaction following MI is a growing area of research.

Purpose of the Study:

• To review pathogenic mechanisms of post-MI depression.
• To identify potential mediators of depression after MI using pre-clinical transcriptomic evidence.
• To explore the role of chemokines in connecting cardiac damage to brain changes.

Main Methods:

• Literature review of conventional and novel mechanistic understanding of post-MI depression.
• Analysis of pre-clinical transcriptomic data to identify potential mediators.
• Focus on chemokine signaling pathways, specifically CXCL12 and CCL22.

Main Results:

• Conventional treatments for post-MI depression include SSRIs, cognitive behavioral therapy, and exercise.
• Chemokines such as CXCL12 and CCL22 are proposed as signaling molecules linking MI-induced cardiac damage to pro-depressive brain changes.
• Transcriptomic evidence supports the role of specific mediators in the heart-brain axis.

Conclusions:

• Existing therapies for post-MI depression have limitations.
• Chemokines represent a promising therapeutic target for managing depression in cardiac patients.
• Further research into chemokine-targeted therapies is crucial for improving patient outcomes.