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1 PI-3K activates Akt by phosphorylation of threonine 308
2 PI-3K activity in capsule-epithelium and fiber cell laye
3 PI-3K activity was found in both lens epithelial cells a
4 PI-3K inhibitors wortmannin and LY294002 blocked the IGF
5 PI-3K initiates a cell signaling pathway that inhibits a
6 PI-3K signaling is known to regulate protein translation
7 PI-3K, in turn, regulated 2 distinct pathways.
8 uction, while the recruitment of PI-3Kinase (PI-3K) is necessary but not sufficient for this effect.
12 Akt induce NF-kappaB activation, Ly294002 (a PI-3K inhibitor), dominant-negative PI-3K, and kinase-de
15 the AP-1 induction is specifically through a PI-3K/Akt-dependent and p70(S6K)-independent pathway.
16 ation and Cap43 protein expression through a PI-3K/Akt-dependent and p70(S6k)-independent pathway.
17 ion, protects cells from apoptosis through a PI-3K/Akt/Bad pathway but not through an ERK1/2 pathway.
20 intercrosses between Nf1 +/- and class I (A)-PI-3K-deficient mice, we demonstrate that hyperactivatio
24 n inactivation (and by extension, activation PI-3K signaling) on myelinating oligodendrocytes and the
27 s were stimulated with insulin or IGF-1, and PI-3K activity was determined after immunoprecipitation
28 egulated serine/threonine kinase (ERK-2) and PI-3K by expression of dominant-negative proteins or che
30 ments to determine the control of GM-CSF and PI-3K by calmodulin in Amo showed that GM-CSF expression
32 A, Casein kinase-II, and the Raf-MEK-ERK and PI-3K-Akt pathways, are not required for HSF1-mediated n
33 to TrkB, and heightened downstream ERK2 and PI-3K activities in prefrontal cortex and in lymphocytes
34 lin in Amo showed that GM-CSF expression and PI-3K activation could not be induced when calmodulin wa
35 reported an interaction between the HIF and PI-3K/Akt pathways in HER2-overexpressing cancer cells.
36 rly pathway dependent on tyrosine kinase and PI-3K and a late pathway dependent on protein kinase C.
40 lar leakage; NF-kappaB, HIF-1alpha, p38, and PI-3K activity; and VEGF, TNF-alpha, and IL-1beta levels
43 ndent with maximal benefit seen when PKB and PI-3K were inhibited before ischaemia or during both isc
48 tion, suggesting the contribution of another PI-3K family members in MEK1/2 and p42/44ERK activation.
49 nduced AP-1 transactivation, whereas another PI-3K downstream kinase, p70(S6K), was not involved in A
51 interest because it provided a link between PI-3K, an enzyme known to play a critical role in cellul
52 c2 as a novel mediator of cross-talk between PI-3K and the p21(ras)-ERK pathway which functions to al
54 hus, we demonstrated p85alpha-associated but PI-3K-independent cell death in response to UVR and iden
56 utralization of virus entry and infection by PI-3K and other cellular tyrosine kinase inhibitors sugg
57 of the Bcl-2 family), which was inhibited by PI-3K inhibitors, but not by the p70 S6K inhibitor rapam
60 ts indicate that Th17 cytokines are tuned by PI-3K signaling in CCR6(+) T(M) cells, which may contrib
61 analysis demonstrates that the Ras-dependent PI-3K pathway is also critical for controlling Myc prote
63 ggest that cytokine receptors lacking direct PI-3K binding sites activate Akt via a Shc/Grb2/Gab2/PI-
64 Id1 expression correlates with dysregulated PI-3K signaling in multiple established GBM cell lines.
69 hat removal of a minimal domain required for PI-3K signaling abrogated the ability of EPO to override
70 her, these findings suggest a novel role for PI-3K/Akt pathways in the modulation of growth arrest re
71 nding sites activate Akt via a Shc/Grb2/Gab2/PI-3K pathway, thereby regulating cell survival and/or p
72 proteins, we show that Ras and Rac GTPases, PI-3K, and PKC participate in cell migration mediated by
73 ults suggest that activation of Akt1 by HER2/PI-3K plays an important role in conferring a broad-spec
74 , we delineated a pathway that involves HER2/PI-3K/Akt in mediating multidrug resistance in human bre
76 HSC/P) function, and recent studies identify PI-3K as a therapeutic target in treating different leuk
78 evious reports have suggested that increased PI-3K/Akt or decreased PTEN activity may activate the HI
80 ceptor (IL-6R) signaling (eg, IKK/NF-kappaB, PI-3K/Akt, and Raf/MAPK) and downstream effectors (eg, p
82 ctivating the phosphatidylinositol-3 kinase (PI-3K) and mitogen-associated protein kinase (MAPK) sign
83 inase C (PKC) and phosphoinositide-3 kinase (PI-3K) appeared to be required for SDF-1alpha-mediated p
84 e presence of phosphatidylinositol-3 kinase (PI-3K) inhibitors (wortmannin and LY294002), HGF did not
85 Class I(A) phosphatidylinositol-3 kinase (PI-3K) is a lipid kinase, which is activated in blood ce
87 how increased phosphatidylinositol-3 kinase (PI-3K) signaling, we sought to determine whether this pa
88 inhibition of phosphotidylinositol-3 kinase (PI-3K) with LY294002 reverted the radioresistant phenoty
89 antibody, or with inhibitors of PI-3 kinase (PI-3K), c-Jun kinase (JNK), or Akt, suppressed retinal A
92 press HER3 caused a phosphoinoside-3 kinase (PI-3K)-dependent activation of Akt, and was associated w
97 can activate phosphatidylinositol-3 kinase (PI-3K)/Akt pathways and plays an important role in media
98 including Stat5, phosphoinositide-3 kinase (PI-3K)/Akt, and p42/44 mitogen-activated protein kinase
99 on and of the phosphatidylinositol-3 kinase (PI-3K)/Akt-1 pathway prevented the action of EGF on TGF-
100 activation of phosphatidylinositol-3 kinase (PI-3K)/Akt/mammalian target of rapamycin (mTOR) and glyc
101 activation of phosphatidylinositol 3'kinase (PI-3K) and its subsequent up-regulation of specific NF-k
102 n as well as phosphatidylinositol-3'-kinase (PI-3K) activity and Akt/protein kinase B phosphorylation
106 ependent upon phosphatidylinositol 3-kinase (PI-3K) activity as evidenced by inhibition of glucose up
108 ation of both phosphatidylinositol 3-kinase (PI-3K) and NF-kappaB/Rel transcription factors is crucia
110 ross-talk between phosphoinositide 3-kinase (PI-3K) and the classical p21(ras)-Raf-Mek-ERK pathway to
111 nhibition of phosphatidyl-inositol 3-kinase (PI-3K) by LY294002 in alpha(IIb)beta(3)(+) cells induced
112 ry subunit of phosphatidylinositol 3-kinase (PI-3K) exerted a proapoptotic role in response to UVR th
114 A or with the phosphatidylinositol 3-kinase (PI-3K) inhibitors wortmannin and LY294002 blocked the ea
115 unit (p85) of the phosphoinositide 3-kinase (PI-3K) is homologous with the Cdc42GAP and contains the
116 inhibition of phosphatidylinositol 3-kinase (PI-3K) or adenovirus expression of PTEN or dominant nega
117 Inhibition of phosphoinositide 3-kinase (PI-3K) or Akt signaling selectively prevents Th17 cytoki
118 eceptors (VEGFRs), phosphoinositol 3-kinase (PI-3K) or Rac1 was measured in CECs cocultured in contac
120 embers of the phosphatidylinositol 3-kinase (PI-3K) related kinase (PIKK) family unexpectedly reveale
121 igate whether phosphatidylinositol 3-kinase (PI-3K) signaling is involved in lens epithelial cell pro
124 that the specific phosphoinositide 3-kinase (PI-3K), Akt and mammalian target of rapamycin (mTOR) inh
128 kinase (MAPK) and phosphoinositol 3-kinase (PI-3K), leading to both proliferative and antiapoptotic
129 y blockade of phosphatidylinositol-3-kinase (PI-3K), mammalian target of rapamycin (mTOR), and p38 MA
132 d through the phosphatidylinositol 3-kinase (PI-3K)-dependent pathway because inhibitors of PI-3K as
134 inhibitor of phosphatidylinositol 3-kinase (PI-3K)-related PKs, including the catalytic subunit of D
138 dly activated phosphatidylinositol 3-kinase (PI-3K)/Akt and p90(RSK1) to an extent similar to insulin
144 regulation of phosphatidylinositol 3-kinase (PI-3K)/Akt signaling pathway, taken together with the ev
145 ependent on a phosphatidylinositol 3-kinase (PI-3K)/Akt/GSKIIIbeta pathway(s) as indicated by the sup
147 RK)1/2 and phosphatidylinositol-3-OH kinase (PI-3K) pathways significantly, albeit partially, decreas
148 itors of phosphatidylinositol 3'(OH)-kinase (PI-3K) activity diminished EEA1 recruitment to newly for
149 10 (PTEN; eg, phosphatidylinositol-3-kinase [PI-3K]) have been reported to enhance axon regeneration
150 inhibitor of phosphatidylinositol-3-kinase, PI-3K) partially inhibited, and GF 109203X (GF, a specif
152 MEK1/2-p42/44ERK and NF-kappaB pathways link PI-3K activity to Ag receptor-mediated cyclin D2 inducti
153 ion of the signaling intermediates that link PI-3K activity to the cell cycle remains incomplete.
158 hanced the IGF-1-, but not the PDGF-mediated PI-3K activation, suggesting a possible integration of F
162 induced by starvation or inhibition of mTOR/PI-3K was not affected by either DRAM1 or p62 downregula
163 sion of Deltap85 (a dominant-negative mutant PI-3K) impaired B[a]PDE- and 5-MCDE-induced VEGF inducti
164 ion, overexpression of the dominant negative PI-3K mutant delta p85 reduced the induction of VEGF by
167 94002 (a PI-3K inhibitor), dominant-negative PI-3K, and kinase-dead Akt block IFN-dependent NF-kappaB
171 ease in insulin/IGF-1-mediated activation of PI-3K and its downstream target Akt, with progression of
175 reveal that integrin-mediated activation of PI-3K-Akt is amplified by integrin-stimulated VEGF expre
176 enhanced stability of c-Myb by activation of PI-3K-dependent pathway(s) might contribute to the highe
178 otes myeloma cell migration by activation of PI-3K/PKCmicro and PI-3K/RhoA pathways independent of Ak
179 e for CD40-mediated survival, as blocking of PI-3K activity did not lead to apoptosis of anti-CD40-tr
182 tudy we examined the downstream effectors of PI-3K/Akt signaling and their role in cell death after o
183 igration by Rac1 activation independently of PI-3K signaling and may have importance in the developme
189 Our studies indicate that inhibition of PI-3K leads to apoptosis in primary cortical astrocytes.
191 regulate the MAPK cascade, as inhibition of PI-3K prevented activation of Mek1/2 and other downstrea
192 veals that chemical or genetic inhibition of PI-3K signaling reduces Id1 protein but not mRNA express
193 ted by chemical and biological inhibition of PI-3K suggestive of cross talk between signaling pathway
196 ction correlates with that for inhibition of PI-3K-related protein kinase activity in these cells.
197 uced arrest was abolished by an inhibitor of PI-3K (LY294002) or by overexpression of dominant-negati
198 -3K)-dependent pathway because inhibitors of PI-3K as well as a dominant negative mutant of p85 (PI-3
200 tro experiments using chemical inhibitors of PI-3K suggest that this kinase is potentially important
201 , we determined the potential involvement of PI-3K and its downstream kinases on the inhibition of AP
202 cells, suggesting a possible involvement of PI-3K in JSRV and ENTV Env-induced cell transformation.
203 significant differences in the modulation of PI-3K signaling by different growth factors during proli
204 rexpression of a dominant-negative mutant of PI-3K (Deltap85) impaired nickel-induced HIF-1 transacti
205 verexpression of dominant-negative mutant of PI-3K, Deltap85, impaired B[a]PDE-induced activation of
209 In contrast to the absolute requirement of PI-3K and NF-kappaB/Rel for proliferation, these signali
212 direct binding sites for the p85 subunit of PI-3K, others, such as the interleukin-3 (IL-3) receptor
216 -3K inhibitors, which inhibit all classes of PI-3Ks, the p85alpha regulatory subunit is not required
219 ing in Amo and that restoration of GM-CSF or PI-3K signaling will improve host response to the organi
221 ownstream mediators of Ras signaling (MEK or PI-3K) abrogated endothelial cell migration, invasion, a
223 s well as a dominant negative mutant of p85 (PI-3K subunit) reversed the inhibition, whereas a consti
224 ion, as well as to activate survival-related PI-3K/AKT pathways protecting cells from apoptosis.
235 thway, taken together with the evidence that PI-3K/Akt plays an important role in the activation of A
240 nduced AP-1 transactivation, suggesting that PI-3K is an upstream kinase involved in AP-1 activation
244 RvIII's differential ability to activate the PI-3K downstream signal may explain why this mutant rece
245 the ability of this integrin to activate the PI-3K-Akt pathway and, consequently, the rapamycin-sensi
247 F-1 receptor neutralizing antibody aIR3, the PI-3K inhibitor wortmannin, and the heat shock protein-9
248 crophages of antibodies against EEA1 and the PI-3K hVPS34 reduced acquisition of late endocytic marke
250 he JAK-STAT pathway (unique to TPO), and the PI-3K-AKT axis is differentially involved in TPO- and SD
251 cellular cascade through the ERK 1/2 and the PI-3K/ Akt kinase pathways and that these events could b
252 ctivation of the PI-3K pathways, because the PI-3K inhibitor LY294002 blocks the neuroprotective effe
254 w that cyclin D2 induction is blocked by the PI-3K inhibitors wortmannin and LY294002, which coincide
256 ses were regulated almost exclusively by the PI-3K pathway, with only minor contributions associated
257 entify a series of downstream targets in the PI-3K pathway, including glycogen synthase kinase-3beta,
259 onents by mutant c-Kit, such as those in the PI-3K/Akt pathway, is demonstrated and may also be neede
263 We have therefore examined the role of the PI-3K pathway, and of GSK-3beta, in regulating astrocyte
264 tive effects are linked to activation of the PI-3K pathways, because the PI-3K inhibitor LY294002 blo
265 pid translocation and phosphorylation of the PI-3K substrate Akt and phosphorylation of Akt substrate
266 neurons were linked to the activation of the PI-3K-->pAkt pro-survival pathway and the expression of
267 s important implications for the role of the PI-3K-Akt/PKB-HDM2 pathway in tumor progression and angi
269 nhibition, we evaluated the influence of the PI-3K/Akt axis on the expression of a member of the inhi
270 8-452) was not affected by inhibition of the PI-3K/Akt pathway and was not enhanced by a proteasome i
271 ith HIF-1 transactivation, inhibition of the PI-3K/Akt pathway by either overexpression of Deltap85 o
275 1 mRNA translation through inhibition of the PI-3K/Akt/mTOR/eIF4E-BP signaling pathway and triggering
278 findings provide the first evidence that the PI-3K/AKT signaling pathway modulates PPM1G activity res
286 the activity of the core components of the 'PI-3K/Akt pathway' is modulated by a complex network of
287 F induction by B[a]PDE and 5-MCDE is through PI-3K/AP-1-dependent and HIF-1alpha-independent pathways
288 and this AP-1 induction was specific through PI-3K/Akt/JNKs-dependent and p70S6k-independent pathways
289 ogen synthase kinase 3beta and Foxo1 are two PI-3K-regulated targets that play important roles, but t
290 itaxel resistance in breast cancer cells via PI-3K/Akt/mTOR signaling pathway-dependent upregulation
291 athy by inducing retinal VEGF expression via PI-3K/Akt, HIF-1alpha, NF-kappaB, and secondarily, JNK/A
296 t-1 and describe a unique mechanism in which PI-3K acts as a mediator of antiproliferation in primary
299 red growth in ER-positive cells treated with PI-3K and ERK1/ERK2 inhibitors, whereas it had no protec
300 sion of c-Myb expression upon treatment with PI-3K inhibitors or co-expression with dominant negative
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