CD8A and myocarditis: In a murine study, CD8+ T cells of mice with myocarditis demonstrated a unique transcriptional profile consisting of proinflammatory and cytotoxicity markers (GZMB, GNLY, CST7, NKG7, KLRB1, and IL32), and myocardial-tropic chemokines CCL5, CCL4, and CCL4L2 (21).