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PMID |
Sentence |
1 |
2833110
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To determine if other tyrosine kinases might be altered, we have studied the epidermal growth factor (EGF) receptor kinase in wheat germ agglutinin-purified, Triton X-100-solubilized liver membranes from streptozotocin (STZ)-induced diabetic rats and the insulin-deficient BB rat.
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2 |
2833110
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A parallel decrease in EGF receptor phosphorylation was also found by immunoblotting with an anti-phosphotyrosine antibody.
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3 |
2458910
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Dexamethasone-induced changes in insulin and epidermal growth factor (EGF) receptor number, autophosphorylation, and kinase activity were studied in intact rat hepatocytes.
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4 |
2458910
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Dexamethasone had no effect on insulin receptor number, while EGF receptor binding was slightly increased (21.3% vs. 17.2% binding/10(6) cells) after dexamethasone treatment.
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5 |
2458910
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Our data indicate that glucocorticoids modulate insulin and EGF receptor kinase activity, but the nature of their effect depends on other factors, including the dietary state of the animal.
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6 |
2525915
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Daily administration of insulin to the streptozotocin-induced diabetic mice increased the hepatic levels of EGF receptor messenger RNAs to almost normal levels.
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7 |
2525915
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These results indicate that EGF binding to its receptor decreases in the liver of diabetic mice, involving alterations in the level of EGF receptor messenger RNAs, and that insulin is important for the regulation of EGF receptor gene expression in the liver but not in the kidney.
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8 |
2808704
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Sphingosine (40 microM), a protein kinase C inhibitor, increased EGF receptor affinity twofold in control cells and six- to nine-fold in cells of leprechaunism.
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9 |
1532938
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These data demonstrate that the reduced number of hepatocyte surface EGF receptors results from an inhibition of EGF-receptor synthesis which is not compensated by a reduced internalization rate.
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10 |
7561890
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Because of its relationship to epidermal growth factor (EGF) and the heregulins, it was asked if SDGF interacts with the EGF receptor or HER2/neu.
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11 |
8927047
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Some pV compounds showed much greater potency as inhibitors of insulin receptor (IR) dephosphorylation than epidermal growth factor receptor (EGFR) dephosphorylation, implying relative specificity as PTP inhibitors.
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12 |
8662948
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In contrast, ligand-stimulated EGF receptor phosphorylation in CHO/EGF-R cells was not affected by the presence of stearyl 3S-peptide-I.
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13 |
9015760
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Since SH-PTP2 has been shown to interact directly with both the EGF receptor and IRS-1, increased abundance of this PTPase, may mediate the TNF-alpha effect to inhibit signalling through these proteins.
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14 |
10683311
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After an overnight incubation with EGF the TM(-) EGFR accumulated in the nucleus.
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15 |
10683311
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In mouse NR6 cells, which lack endogenous EGFR, transfected TM(-) EGFR were found in the cytoplasm, but incubation with EGF did not result in a nuclear accumulation of TM(-) EGFR.
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16 |
12138086
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EGF increased the tyrosine phosphorylation of several proteins (the EGF receptor, insulin receptor substrate (IRS)-1, IRS-2, and Grb2-associated binder 1), whereas Shc and Gab2 were only weakly and inconsistently phosphorylated. p85, the regulatory subunit of phosphatidylinositol 3-kinase (PI 3-kinase), was also found to associate with all of these docking molecules, showing that EGF activated PI 3-kinase pools that were additional to those of insulin.
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17 |
12522107
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In contrast, the morphogenic switch induced by pS2 in HUVEC cells could be inhibited by the specific KDR heptapeptide antagonist ATWLPPR and by inhibitors of COX-2 and EGF-R signaling.
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18 |
15044356
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The proliferative effects of GLP-1 appear to involve multiple intracellular pathways, including stimulation of Akt, activation of protein kinase Czeta, and transactivation of the epidermal growth factor receptor through the c-src kinase.
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19 |
15171688
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In addition, TRH induced epidermal growth factor (EGF) receptor phosphorylation with a half-maximum concentration of approximately 50 nM, whereas the high affinity analogue of TRH, MeTRH, was 1 nM.
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20 |
15171688
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This suggested that the affinity of TRH ligands for the TRH receptor influences the activation of EGF receptor phosphorylation in betaTC-6 cells.
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21 |
16239374
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Although the ET(A) receptor subtype is not involved in the early activation of MMPs in type 2 diabetes, ET-1 contributes to transactivation of growth-promoting and profibrotic EGFR.
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22 |
16954185
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AGE responses also included EGF receptor (EGFR) phosphorylation in MCs or HEK293 cells, but this link was blocked in both MC-R1 and HEK293-R1 cells.
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23 |
16966336
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This effect was mediated by induction of cyclooxygenase-2 (COX-2) gene expression and production of prostaglandin E2 (PGE2) that in turn transactivated epidermal growth factor receptor (EGFR) and Akt.
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24 |
17653207
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Angiotensin II (ANG II) plays an important role in its development through epidermal growth factor receptor (EGFR) transactivation.
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25 |
17604276
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By silencing Akt and blocking Erk1/2 MAPK pathways, we also demonstrate that these signals are downstream to Rac-1/reactive oxygen species production and epidermal growth factor receptor activation.
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26 |
18032526
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AGE-induced OS is suppressed by AGER1, an AGE-receptor that counteracts receptor for advanced glycation end products (RAGE) and epidermal growth factor receptor (EGFR)-mediated Shc/Ras signal activation, resulting in decreased OS.
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27 |
18571697
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Epidermal growth factor (EGF) stimulated [(35)S]sulfate incorporation and increased proteoglycan size and this was completely blocked by the EGF receptor tyrosine kinase inhibitor AG1478.
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28 |
19409809
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In contrast, MCP-1, but not CCN2, correlated with the rate of eGFR decline for all patients (R=0.61, p<0.0001), reflective of its predictive value in patients with macroalbuminuria, but not for patients with microalbuminuria or normoalbuminuria.
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29 |
19440038
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At the molecular level, metformin increases P-AMPK, reduces P-EGFR, EGFR, P-MAPK, P-Src, cyclin D1 and cyclin E (but not cyclin A or B, p27 or p21), and induces PARP cleavage in a dose- and time-dependent manner.
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30 |
19696185
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We investigated, herein, in vivo efficacy and associated molecular mechanisms by which PD153035, an EGFR tyrosine kinase inhibitor, improved diabetes control and insulin action.
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31 |
20586186
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To study the association with diabetes mellitus type 1 we performed analysis of the distribution of frequencies of alleles and genotypes of polymorphic marker rs2292239 of ERBB3 gene, encoding epidermal growth factor receptor type 3 and polymorphic marker rs3184504 of SH2B3 gene, encoding adaptor protein LNK.
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32 |
20571025
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One component of classical G-protein-coupled receptor (GPCR) signaling invokes transactivation of protein tyrosine kinase receptors such as the epidermal growth factor receptor.
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33 |
18319304
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Primary cultured endothelial cells from resistance arteries treated with high glucose for 48 h showed an increase of EGFR phosphorylation associated with eNOS expression and phosphorylation decrease in response to calcium ionophore.
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34 |
21070952
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This demonstrates that the PSAP motif is not rate determining in EGF receptor downregulation under normal conditions.
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35 |
19642985
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D-410639 has little activation potential on IGF-1 receptor but is a moderate inhibitor to EGF receptor.
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36 |
21155863
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Transactivation of the epidermal growth factor receptor (EGFR) by factors inherent in the milieu of diabetes mellitus increases serum glucocorticoid regulated kinase-1 (Sgk1), a key regulator of NHE3. 3.
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37 |
21286018
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In multiple regression analysis, serum cystatin C was affected by C-reactive protein (CRP), sex, albumin-creatinine ratio (ACR) and eGFR.
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38 |
21286018
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Urine cystatin C was affected by triglyceride, age, eGFR and ACR.
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39 |
21031338
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It could be shown that the applied anabolic combination significantly influenced the expression of the steroid receptor ER?, the keratinization factor CK8, the proinflammatory interleukins IL-1? and IL-1?, the growth factors FGF7, EGF, EGFR, IGF-1R, TGF? and LTF, the oncogen c-jun and other factors like actin? and ubiquitin 3.
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40 |
21386087
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When cells were incubated with specific ErbB receptors antagonists or in cells lacking ErbB receptors, anisomycin- and TNF-induced IRS-1 serine phosphorylation was attenuated, despite intact p38MAPK activation.
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41 |
19605547
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We have recently shown that epidermal growth factor receptor (EGFR) transactivation mediates high glucose (HG)-induced collagen I upregulation through PI3K-PKCbeta1-Akt signaling in mesangial cells (MC).
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42 |
19605547
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PLCgamma1 activation required EGFR kinase activity since it was prevented by the EGFR inhibitor AG1478 or overexpression of kinase-inactive EGFR (K721A).
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43 |
21292366
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It is unknown whether, in the general population, urinary CTGF levels are associated with a decrease in estimated glomerular filtration rate (eGFR) to <60 mL/min/1.73 m(2) (ie, development of chronic kidney disease [CKD] stage 3).
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44 |
17270172
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The exit from quiescence correlates with activation of EGFR expression and down-regulation of p27(Kip1) and p16(INK4a).
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45 |
19608732
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HB-EGF binds to and activates two receptors, epidermal growth factor receptor (EGFR) and ErbB4, as well as heparin moieties and CD9/DRAP27.
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46 |
19608732
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Using an in vitro cell migration assay, we show that HB-EGF regulates both chemoattraction and stimulation of proliferation of PSCs via EGFR activation.
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47 |
20406885
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It is now appreciated that in addition to signaling from the plasma membrane, EGFR also trafficks to the nucleus, and can directly bind the promoter regions of genes encoding cyclin D1 (CCND1) and B-Myb (MYBL2).
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48 |
21897861
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Growth-promoting actions of BTC are mediated by epidermal growth factor receptors (ErbBs), namely ErbB-1, ErbB-2, ErbB-3 and ErbB-4; however, the exact mechanism for beta cell proliferation has not been elucidated.
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49 |
21897861
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BTC treatment increased mRNA and protein levels of insulin receptor substrate-2 (IRS-2), and this was blocked by the ErbB-1 and ErbB-2 inhibitors.
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50 |
21897861
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These results suggest that BTC exerts proliferative activity on beta cells through the activation of ErbB-1 and ErbB-2 receptors, which may increase IRS-2 expression, contributing to the regeneration of beta cells.
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51 |
21673097
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Our results indicate that GPER activation of the epidermal growth factor receptor and ERK in response to estradiol treatment plays a critical role in the secretion of insulin from ?-cells.
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52 |
21389970
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Attenuating effects of HDAC inhibition, although multifactorial, are likely to be mediated in part through downregulation of the EGFR.
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53 |
21893988
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ET-1 is a potent mitogen of mesangial cells and the ability of ET-1 to support mesangial cell proliferation is likely to be associated with both recruitment of cytoplasmic tyrosine kinases which activate the Shc-Sos-Ras-Raf-MEK-ERK signaling pathway and transactivation of the EGF receptor.
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54 |
12502502
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We hypothesized that the GLP-1R could activate PI 3-kinase and promote beta-cell proliferation through transactivation of the epidermal growth factor (EGF) receptor (EGFR), an event possibly linked to GPCRs via activation of c-Src and the production of putative endogenous EGF-like ligands.
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55 |
12502502
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Both the c-Src inhibitor PP1 and the EGFR-specific inhibitor AG1478 blocked GLP-1-induced [(3)H]thymidine incorporation in INS(832/13) cells as well as in isolated rat islets, while only AG1478 inhibited the proliferative action of betacellulin (BTC), an EGFR agonist.
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56 |
12502502
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This transactivation of the EGFR was sensitive to both the pharmacological agents PP1 and AG1478.
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57 |
12502502
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The results are consistent with a model in which GLP-1 increases PI 3-kinase activity and enhances beta-cell proliferation via transactivation of the EGFR that would require the proteolytic processing of membrane-anchored BTC or other EGF-like ligands.
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58 |
16105029
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As the epidermal growth factor (EGF) receptor is activated by both EGF and other factors implicated in diabetic nephropathy, the relationship of SGK-1 with EGFR activity was assessed. mRNA and protein expression of SGK-1 and mRNA expression of the sodium hydrogen exchanger NHE3 were measured in human PTCs exposed to 5 mmol/L (control) and 25 mmol/L (high) glucose.
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59 |
16105029
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High glucose and overexpression of SGK-1 increased NHE3 mRNA (P < 0.05) and EGFR phosphorylation (P < 0.01), which were reversed by PKI166.
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60 |
16105029
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No EGF protein was detectable in PTCs, suggestive of phosphorylation of the EGFR by high glucose and downstream induction of SGK-1.
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61 |
21822824
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Mechanisms that link these two processes are not completely understood, but transcription factors of the NF-?B family and signal transducer and activator of transcription 3 (STAT3), cytokines such as IL-6 and IL-1? and ligands of the epidermal growth factor receptor (EGFR) family are clearly pivotal players.
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