alexa Relationship between CD107a expression and cytotoxic activity.


Immunochemistry & Immunopathology

Author(s): Aktas E, Kucuksezer UC, Bilgic S, Erten G, Deniz G

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Abstract NK cells play important roles in innate immunity against tumors and infections of the host. Studies show that CD107a (LAMP-1) may be a marker for degranulation of NK and activated CD8+ T cells. In our study, the relationship between the expression of CD107a, cytokine secretion and cytotoxic activity in CD56+ NK, CD8+ T cells and lymphocytes has been determined after various stimuli. Effector cells from PBMCs of healthy subjects were isolated and K562 cell line was used as target of cytotoxicity. IL-2 stimulation resulted in a significant increase of CD107a expression in CD56+ NK, CD8+ T cells and lymphocytes. Increased expression of CD107a after IL-2 stimulation of NK cells was parallel to the increase of cytotoxicity. Our results suggest that CD107a expression may be a sensitive marker for the cytotoxic activity determination. This article was published in Cell Immunol and referenced in Immunochemistry & Immunopathology

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