Immune cells in cardiac homeostasis and disease.

Immune cells play key roles in cardiac homeostasis and disease. Although the function and significance of diverse immune cell populations in the heart in health, aging, and in disease is not fully understood, it is clear that these immune populations can be of diagnostic and therapeutic significance. The field of cardio-immunology is vast and evolving constantly. Herein, we aim to focus on a subset of the immune cells that are abundant and significant in healthy and diseased heart, providing relevant biological concept and clinical implications for practicing pathologists.