TY - JOUR
T1 - NKG2D triggers cytotoxicity in mouse NK cells lacking DAP12 or Syk family kinases
AU - Zompi, Simona
AU - Hamerman, Jessica A.
AU - Ogasawara, Kouetsu
AU - Schweighoffer, Edina
AU - Tybulewicz, Victor L.J.
AU - Di Santo, James P.
AU - Lanier, Lewis L.
AU - Colucci, Francesco
N1 - Funding Information:
We thank A. Weiss and T. Kadlecek for Zap70−/− mice; E. Corcuff, O. Richard and T. Chen for help; A. Caraux for reading the manuscript; and P. Leibson and D. Billadeau for discussions and for sharing unpublished data. This work was supported by grants from the Pasteur Institute, Ligue Nationale Contre le Cancer, Association pour la Recherche sur le Cancer, Institut National de la Santé et de la Recherche Medicale (to F.C. and J.P.D.) and the Medical Research Council (to V.J.L.T.), and grant R01 CA89294 from the National Institutes of Health (to
Funding Information:
L.L.L.). S.Z. is supported by a grant from Ligue Nationale Contre le Cancer; J.A.H. is supported by a grant from Irvington Institute for Immunological Research; K.O. is supported by Human Frontier Science Program Long-term Fellowship; E.S. is supported by the European Molecular Biology Organization; and L.L.L. is a Research Professor of the American Cancer Society.
PY - 2003/6/1
Y1 - 2003/6/1
N2 - In activated mouse natural killer (NK) cells, the NKG2D receptor associates with two intracellular adaptors, DAP10 and DAP12, which trigger phosphatidyl inositol 3 kinase (PI3K) and Syk family protein tyrosine kinases, respectively. Here we show that cytotoxicity, but not cytokine production, is triggered by NKG2D in activated NK cells lacking either DAP12 or the Syk family members Syk and ZAP70. Inhibition of PI3K blocks this cytotoxicity, suggesting that the DAP10-PI3K pathway is sufficient to initiate NKG2D-mediated killing of target cells. Our results highlight signaling divergence in the effector functions of NKG2D and indicate that alternative associations between a receptor and its adaptors may provide a single receptor with a dual 'on-switch', giving mouse NK cells more choices through which to trigger cytotoxicity.
AB - In activated mouse natural killer (NK) cells, the NKG2D receptor associates with two intracellular adaptors, DAP10 and DAP12, which trigger phosphatidyl inositol 3 kinase (PI3K) and Syk family protein tyrosine kinases, respectively. Here we show that cytotoxicity, but not cytokine production, is triggered by NKG2D in activated NK cells lacking either DAP12 or the Syk family members Syk and ZAP70. Inhibition of PI3K blocks this cytotoxicity, suggesting that the DAP10-PI3K pathway is sufficient to initiate NKG2D-mediated killing of target cells. Our results highlight signaling divergence in the effector functions of NKG2D and indicate that alternative associations between a receptor and its adaptors may provide a single receptor with a dual 'on-switch', giving mouse NK cells more choices through which to trigger cytotoxicity.
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U2 - 10.1038/ni930
DO - 10.1038/ni930
M3 - Article
C2 - 12740576
AN - SCOPUS:0038276047
SN - 1529-2908
VL - 4
SP - 565
EP - 572
JO - Nature Immunology
JF - Nature Immunology
IS - 6
ER -