TY - JOUR
T1 - CD27/CD70 interaction directly induces natural killer cell killing activity
AU - Yang, F. C.
AU - Agematsu, K.
AU - Nakazawa, T.
AU - Mori, T.
AU - Ito, S.
AU - Kobata, T.
AU - Morimoto, C.
AU - Komiyama, A.
N1 - Copyright:
Copyright 2017 Elsevier B.V., All rights reserved.
PY - 1996
Y1 - 1996
N2 - The CD27 molecule is expressed on a portion of natural killer (NK) cells as well as T and B cells. To provide the functional capacity of CD27 molecule on NK cells, we here highly purified CD3- CD56+ NK cells by flow cytometry (purity >98%), and investigated their NK cell activity via CD27/CD70 interaction using a CD70-transfectant by a 4 h 51Cr-release assay. The enhancement of NK activity by purified NK cells in the presence of interleukin-2 (IL-2) or interleukin-12 (IL-12) against CD70/Nalm-6 was not recognized as compared to against mock/Nalm-6. However, after a coculture with the fixed CD70/300 19, the purified NK cells increased the NK cell activity against K562, the value being 10 to 20% higher than coculture with the mock/300-19 in the presence of IL-2 or IL-12. The enhancement of NK activity was blocked by the addition of anti-CD70 monoclonal antibody (mAb). In addition, conjugation of NK cells to the target was increased by coculture with the CD70/300 19 without increased expression of adhesion molecules. In the parallel experiment, there was no increase in the killing capacity of NK cells. These results strongly show that CD27/CD70 interaction directly enhances NK activity in the presence of IL-2 or IL-12 by increasing the effector and target conjugate formation, indicating that CD27/CD70 interaction plays an important role in the cytotoxic function of NK cells.
AB - The CD27 molecule is expressed on a portion of natural killer (NK) cells as well as T and B cells. To provide the functional capacity of CD27 molecule on NK cells, we here highly purified CD3- CD56+ NK cells by flow cytometry (purity >98%), and investigated their NK cell activity via CD27/CD70 interaction using a CD70-transfectant by a 4 h 51Cr-release assay. The enhancement of NK activity by purified NK cells in the presence of interleukin-2 (IL-2) or interleukin-12 (IL-12) against CD70/Nalm-6 was not recognized as compared to against mock/Nalm-6. However, after a coculture with the fixed CD70/300 19, the purified NK cells increased the NK cell activity against K562, the value being 10 to 20% higher than coculture with the mock/300-19 in the presence of IL-2 or IL-12. The enhancement of NK activity was blocked by the addition of anti-CD70 monoclonal antibody (mAb). In addition, conjugation of NK cells to the target was increased by coculture with the CD70/300 19 without increased expression of adhesion molecules. In the parallel experiment, there was no increase in the killing capacity of NK cells. These results strongly show that CD27/CD70 interaction directly enhances NK activity in the presence of IL-2 or IL-12 by increasing the effector and target conjugate formation, indicating that CD27/CD70 interaction plays an important role in the cytotoxic function of NK cells.
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U2 - 10.1111/j.1365-2567.1996.tb00017.x
DO - 10.1111/j.1365-2567.1996.tb00017.x
M3 - Article
C2 - 8690463
AN - SCOPUS:0029972891
SN - 0019-2805
VL - 88
SP - 289
EP - 293
JO - Immunology
JF - Immunology
IS - 2
ER -