HAVCR2 and rheumatoid arthritis: So far as we know, Tim‐3 was highly expressed on peripheral NKT‐like (CD3+CD16/CD56+) cells in patients with rheumatoid arthritis or lung cancer23, 24 and was also elevated on NKT cells or NKT‐like (CD3+NK1.1+) cells in septic mice,25, 26 both of which indicating a possible relation between Tim‐3 and disease development.