The spleen in ischaemic heart disease

Area of Science:

• Cardiovascular Science
• Immunology
• Neuroscience

Background:

• Ischaemic heart disease stems from coronary atherosclerosis, a systemic inflammatory condition.
• The spleen modulates immune cell release and is influenced by nervous system activation.
• Inflammation in the heart is linked to spleen function and autonomic nerve activity.

Purpose of the Study:

• To review the spleen's newly identified cardioprotective functions.
• To explore the spleen's role in atherosclerosis, myocardial infarction, and heart failure.
• To highlight potential clinical applications for patients with ischaemic heart disease.

Main Methods:

• Review of existing literature on spleen function and cardiovascular disease.
• Analysis of immune cell dynamics and inflammatory processes.
• Examination of the vagosplenic axis and its neuromodulatory effects.

Main Results:

• The spleen releases immune cells influencing coronary atherosclerosis and myocardial damage.
• Neuromodulation of the spleen via the vagosplenic axis impacts inflammation and offers acute protection.
• Splenectomy (removal of the spleen) is associated with increased long-term mortality from ischaemic heart disease.

Conclusions:

• The spleen is a critical immune organ with significant cardioprotective roles.
• Understanding the spleen-nervous system interaction offers new therapeutic avenues for heart disease.
• Targeting the spleen may mitigate risks associated with ischaemic heart disease.