CRTAM expression was also analyzed in CD177(+) neutrophils and IL5Rα(+) eosinophils.<h4>Findings</h4>The percentage of CD4(+)CRTAM(+) and CD8(+)CRTAM(+)T lymphocytes in peripheral blood was higher in allergic asthma patients compared with healthy controls. Here, CRTAM is linked to allergic asthma.