NAD-induced T cell death: ADP-ribosylation of cell surface proteins by ART2 activates the cytolytic P2X7 purinoceptor
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NAD-induced T cell death: ADP-ribosylation of cell surface proteins by ART2 activates the cytolytic P2X7 purinoceptor. / Seman, Michel; Adriouch, Sahil; Scheuplein, Felix; Krebs, Christian; Freese, Dunja; Glowacki, Gustavo; Deterre, Phillipe; Haag, Friedrich; Koch-Nolte, Friedrich.
in: IMMUNITY, Jahrgang 19, Nr. 4, 10.2003, S. 571-82.Publikationen: SCORING: Beitrag in Fachzeitschrift/Zeitung › SCORING: Zeitschriftenaufsatz › Forschung › Begutachtung
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TY - JOUR
T1 - NAD-induced T cell death: ADP-ribosylation of cell surface proteins by ART2 activates the cytolytic P2X7 purinoceptor
AU - Seman, Michel
AU - Adriouch, Sahil
AU - Scheuplein, Felix
AU - Krebs, Christian
AU - Freese, Dunja
AU - Glowacki, Gustavo
AU - Deterre, Phillipe
AU - Haag, Friedrich
AU - Koch-Nolte, Friedrich
PY - 2003/10
Y1 - 2003/10
N2 - T cells express a toxin-related ADP-ribosylating ectoenzyme, ART2. Exposure of mature T cells to NAD, the substrate for ADP-ribosylation, induces cell death. ART2-catalyzed ADP-ribosylation activates the cytolytic P2X7 purinoceptor, causing calcium flux, pore formation, phosphatidylserine exposure, shedding of CD62L, cell shrinkage, and propidium iodide uptake. Interestingly, much lower NAD than ATP concentrations are required to activate P2X7. NAD-induced cell death (NICD) operates with endogenous sources of NAD released upon cell lysis. These findings identify P2X7 as a key effector of NICD and demonstrate that P2X7 can be activated by an endogenous ligand other than ATP. Our results delineate an alternative mechanism for inducing T cell death and set an interesting precedent for immunoregulation via crosstalk between NAD-dependent ADP-ribosyltransferases and purinoceptors.
AB - T cells express a toxin-related ADP-ribosylating ectoenzyme, ART2. Exposure of mature T cells to NAD, the substrate for ADP-ribosylation, induces cell death. ART2-catalyzed ADP-ribosylation activates the cytolytic P2X7 purinoceptor, causing calcium flux, pore formation, phosphatidylserine exposure, shedding of CD62L, cell shrinkage, and propidium iodide uptake. Interestingly, much lower NAD than ATP concentrations are required to activate P2X7. NAD-induced cell death (NICD) operates with endogenous sources of NAD released upon cell lysis. These findings identify P2X7 as a key effector of NICD and demonstrate that P2X7 can be activated by an endogenous ligand other than ATP. Our results delineate an alternative mechanism for inducing T cell death and set an interesting precedent for immunoregulation via crosstalk between NAD-dependent ADP-ribosyltransferases and purinoceptors.
KW - ADP Ribose Transferases
KW - Animals
KW - Apoptosis
KW - Calcium
KW - GPI-Linked Proteins
KW - L-Selectin
KW - Membrane Proteins
KW - Mice
KW - NAD
KW - Receptors, Purinergic P2
KW - Receptors, Purinergic P2X7
KW - T-Lymphocytes
KW - Journal Article
KW - Research Support, Non-U.S. Gov't
M3 - SCORING: Journal article
C2 - 14563321
VL - 19
SP - 571
EP - 582
JO - IMMUNITY
JF - IMMUNITY
SN - 1074-7613
IS - 4
ER -