0 10 Activation Activation NNP 11 13 of of IN 14 21 nuclear nuclear JJ 22 35 factor-kappaB factor-kappab NN 36 39 via via IN 40 41 T t NN 42 46 cell cell NN 47 55 receptor receptor NN 56 64 requires require VBZ 65 66 a a DT 67 70 Raf Raf NNP 71 77 kinase kinase NNP 78 81 and and CC 82 86 Ca2+ ca2+ NN 87 93 influx influx NN 93 94 . . . 95 105 Functional functional JJ 106 113 synergy synergy NN 114 121 between between IN 122 125 Raf Raf NNP 126 129 and and CC 130 141 calcineurin calcineurin NN 141 142 . . . 144 151 Signals signal NNS 152 162 transduced transduce VBN 163 166 via via IN 167 170 the the DT 171 174 TCR TCR NNP 175 183 activate activate VBP 184 187 the the DT 188 201 transcription transcription NN 202 208 factor factor NN 209 216 nuclear nuclear JJ 217 230 factor-kappaB factor-kappaB NNP 231 232 ( ( ( 232 241 NF-kappaB NF-kappaB NNP 241 242 ) ) ) 242 243 , , , 244 249 which which WDT 249 250 , , , 251 253 in in IN 254 258 turn turn NN 258 259 , , , 260 262 is be VBZ 263 271 critical critical JJ 272 274 to to TO 275 278 the the DT 279 294 transcriptional transcriptional JJ 295 304 induction induction NN 305 307 of of IN 308 312 many many JJ 313 318 genes gene NNS 319 328 important important JJ 329 332 for for IN 333 336 the the DT 337 350 proliferation proliferation NN 351 354 and and CC 355 365 expression expression NN 366 368 of of IN 369 370 a a DT 371 385 differentiated differentiate VBN 386 395 phenotype phenotype NN 395 396 . . . 397 406 Treatment Treatment NNP 407 409 of of IN 410 411 T t NN 412 417 cells cell NNS 418 422 with with IN 423 426 the the DT 427 434 protein protein NN 435 441 kinase kinase NNP 442 443 C C NNP 444 453 activator activator NN 454 457 PMA PMA NNP 458 460 in in IN 461 472 combination combination NN 473 477 with with IN 478 482 Ca2+ ca2+ NN 483 493 ionophores ionophore NNS 494 500 mimics mimic VBZ 501 505 this this DT 506 513 process process NN 513 514 , , , 515 518 and and CC 519 522 the the DT 523 526 two two CD 527 533 agents agent NNS 534 537 are be VBP 538 543 often often RB 544 555 substituted substitute VBN 556 559 for for IN 560 563 TCR TCR NNP 564 575 stimulation stimulation NN 575 576 , , , 577 586 bypassing bypass VBG 587 590 the the DT 591 594 TCR TCR NNP 594 595 . . . 596 600 Here here RB 601 603 we we PRP 604 612 identify identify VBP 613 626 intracellular intracellular JJ 627 636 signaling signaling NN 637 647 components component NNS 648 656 involved involve VBN 657 659 in in IN 660 670 activation activation NN 671 673 of of IN 674 683 NF-kappaB NF-kappaB NNP 684 693 following follow VBG 694 697 TCR TCR NNP 698 709 stimulation stimulation NN 709 710 . . . 711 714 TCR TCR NNP 715 724 signaling signaling NN 725 728 was be VBD 729 738 triggered trigger VBN 739 741 by by IN 742 750 treating treat VBG 751 757 Jurkat Jurkat NNP 758 759 T t NN 760 765 cells cell NNS 766 770 with with IN 771 774 PHA PHA NNP 775 777 or or CC 778 786 anti-CD3 anti-cd3 JJ 787 790 Abs ab NNS 790 791 , , , 792 795 and and CC 796 805 NF-kappaB NF-kappaB NNP 806 816 activation activation NN 817 820 was be VBD 821 830 monitored monitor VBN 831 833 by by IN 834 849 electrophoretic electrophoretic JJ 850 858 mobility mobility NN 859 864 shift shift NN 865 871 assays assay NNS 872 878 and/or and/or CC 879 881 by by IN 882 898 kappaB-dependent kappab-dependent JJ 899 907 reporter reporter NN 908 914 assays assay NNS 914 915 . . . 916 924 Contrary contrary JJ 925 927 to to TO 928 931 the the DT 932 936 idea idea NN 937 941 that that IN 942 949 protein protein NN 950 956 kinase kinase NNP 957 958 C C NNP 959 961 is be VBZ 962 970 involved involve VBN 971 973 in in IN 974 986 TCR-mediated tcr-mediated JJ 987 997 activation activation NN 998 1000 of of IN 1001 1010 NF-kappaB NF-kappaB NNP 1010 1011 , , , 1012 1016 high high JJ 1017 1022 doses dose NNS 1023 1025 of of IN 1026 1039 staurosporine staurosporine NN 1040 1043 did do VBD 1044 1047 not not RB 1048 1057 interfere interfere VB 1058 1062 with with IN 1063 1073 activation activation NN 1074 1076 of of IN 1077 1086 NF-kappaB NF-kappaB NNP 1087 1089 by by IN 1090 1093 PHA PHA NNP 1093 1094 , , , 1095 1100 while while IN 1101 1104 the the DT 1105 1109 same same JJ 1110 1114 dose dose NN 1115 1117 of of IN 1118 1131 staurosporine staurosporine NN 1132 1142 completely completely RB 1143 1150 blocked block VBD 1151 1161 activation activation NN 1162 1164 by by IN 1165 1168 PMA PMA NNP 1168 1169 . . . 1170 1181 PHA-induced pha-induced JJ 1182 1198 kappaB-dependent kappab-dependent JJ 1199 1207 reporter reporter NN 1208 1216 activity activity NN 1217 1220 was be VBD 1220 1221 , , , 1222 1229 however however RB 1229 1230 , , , 1231 1242 effectively effectively RB 1243 1250 blocked block VBN 1251 1253 by by IN 1254 1255 a a DT 1256 1264 dominant dominant JJ 1265 1273 negative negative JJ 1274 1278 form form NN 1279 1281 of of IN 1282 1287 Raf-1 raf-1 NN 1287 1288 , , , 1289 1299 suggesting suggest VBG 1300 1301 a a DT 1302 1310 critical critical JJ 1311 1315 role role NN 1316 1319 for for IN 1320 1321 a a DT 1322 1325 Raf Raf NNP 1326 1332 kinase kinase NNP 1332 1333 . . . 1334 1337 The the DT 1338 1350 TCR-mediated tcr-mediated JJ 1351 1361 activation activation NN 1362 1364 of of IN 1365 1374 NF-kappaB NF-kappaB NNP 1375 1378 was be VBD 1379 1383 also also RB 1384 1393 dependent dependent JJ 1394 1396 on on IN 1397 1398 a a DT 1399 1403 Ca2+ ca2+ NN 1404 1410 influx influx NN 1410 1411 , , , 1412 1419 because because IN 1420 1423 the the DT 1424 1428 Ca2+ ca2+ NN 1429 1436 channel channel NN 1437 1444 blocker blocker NN 1444 1445 , , , 1446 1450 SK&F SK&F NNP 1451 1456 96365 96365 CD 1456 1457 , , , 1458 1460 as as RB 1461 1465 well well RB 1466 1468 as as IN 1469 1474 other other JJ 1475 1481 agents agent NNS 1482 1486 that that WDT 1487 1496 prevented prevent VBD 1497 1500 the the DT 1501 1505 Ca2+ ca2+ NN 1506 1512 influx influx NN 1512 1513 , , , 1514 1523 inhibited inhibit VBD 1524 1533 NF-kappaB NF-kappaB NNP 1534 1544 activation activation NN 1544 1545 . . . 1546 1560 Cotransfection cotransfection NN 1561 1563 of of IN 1564 1565 a a DT 1566 1580 constitutively constitutively RB 1581 1587 active active JJ 1588 1592 form form NN 1593 1595 of of IN 1596 1607 calcineurin calcineurin NN 1608 1615 largely largely RB 1616 1627 substituted substitute VBN 1628 1631 for for IN 1632 1635 the the DT 1636 1640 Ca2+ ca2+ NN 1641 1652 requirement requirement NN 1653 1656 and and CC 1657 1665 reversed reverse VBD 1666 1669 the the DT 1670 1678 blockade blockade NN 1679 1681 by by IN 1682 1686 SK&F SK&F NNP 1687 1692 96365 96365 CD 1692 1693 . . . 1694 1704 Consistent consistent JJ 1705 1709 with with IN 1710 1715 these these DT 1716 1728 observations observation NNS 1728 1729 , , , 1730 1742 coexpression coexpression NN 1743 1745 of of IN 1746 1760 constitutively constitutively RB 1761 1767 active active JJ 1768 1773 forms form NNS 1774 1776 of of IN 1777 1782 Raf-1 raf-1 NN 1783 1786 and and CC 1787 1798 calcineurin calcineurin NN 1799 1814 synergistically synergistically RB 1815 1822 induced induce VBD 1823 1839 kappaB-dependent kappab-dependent JJ 1840 1848 reporter reporter NN 1849 1857 activity activity NN 1857 1858 , , , 1859 1869 suggesting suggest VBG 1870 1871 a a DT 1872 1887 physiologically physiologically RB 1888 1896 relevant relevant JJ 1897 1907 functional functional JJ 1908 1919 interaction interaction NN 1920 1927 between between IN 1928 1931 the the DT 1932 1938 kinase kinase NNP 1939 1942 and and CC 1943 1946 the the DT 1947 1958 phosphatase phosphatase NN 1958 1959 . . .