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Katsuura, M. et al.

Katsuura, Shimizu, Akiba, Kanazawa, Mitsui, Sendo, Kawakami, Hayasaka, Yokoyama,

CD48 expression on leukocytes in infectious diseases: flow cytometric analysis of surface antigen.

BACKGROUND: The function of CD48, one of the pan leukocyte cell surface antigens, is not yet well understood. CD48 was recently shown to enhance the CD40-mediated activating signal to B lymphocytes. As CD48 is one of the activation antigens of monocytes, neutrophils and lymphocytes, a change of its expression on the cells could be expected in infectious diseases. METHODS AND RESULTS: Leukocytes from 27 healthy controls and 97 patients with various infectious diseases were stained with anti CD48 antibody and analyzed by flow cytometry. On monocytes and neutrophils, the CD48 expression was increased in all of the patients with varicella, measles, rubella, infectious mononucleosis, streptococcus tonsillitis, sepsis and appendicitis. On lymphocytes, a significant increase of CD48 was also detected in the patients with the same diseases, except those with sepsis or appendicitis. The normalization of increased CD48 expression was confirmed on monocytes at the convalescent phase. CONCLUSION: These data suggest that CD48 expression on leukocytes reflects the disease activity of infectious diseases, especially of viral infections.[1]

References

CD48 expression on leukocytes in infectious diseases: flow cytometric analysis of surface antigen. Katsuura, M., Shimizu, Y., Akiba, K., Kanazawa, C., Mitsui, T., Sendo, D., Kawakami, T., Hayasaka, K., Yokoyama, S. Acta paediatrica Japonica; Overseas edition. (1998) [Pubmed]

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