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PMID |
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1 |
8692797
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We cloned a long isoform of the wild-type leptin receptor that is preferentially expressed in the hypothalamus and show that it can activate signal transducers and activators of transcription (STAT)-3, STAT-5, and STAT-6.
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2 |
8692797
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These data provide further evidence that the mutation in OB-R causes the db/db phenotype and identify three STAT proteins as potential mediators of the anti-obesity effects of leptin.
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3 |
11024034
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Furthermore, overexpression of STAT-1 alpha does not impair robust glucose-stimulated insulin secretion in the INS-1-derived cell line 832/13.
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4 |
11254704
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IFN-gamma treatment conferred susceptibility to TNF-alpha-induced apoptosis on otherwise resistant insulinoma cells by STAT1 activation followed by IFN regulatory factor (IRF)-1 induction.
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5 |
11416024
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Here we studied the tyrosine phosphorylation of STAT (signal transducer and activator of transcription) proteins in the hypothalamus of normal rats after iv injection of recombinant murine leptin or TNFalpha or coinjection of both cytokines.
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6 |
11416024
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No other STAT proteins (STAT1, STAT5) were activated by leptin, whereas TNFalpha injection resulted in a dose-dependent phosphorylation of hypothalamic STAT5.
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7 |
11416024
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These data show that TNFalpha, independently of leptin, activates hypothalamic STAT signaling pathways and enhances leptin action at the level of STAT3.
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8 |
11342558
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To assess the role of the Janus kinase/signal transducer and activator of transcription (STAT) pathway in IFN-gamma intracellular signaling, we stably overexpressed SOCS-1 (suppressor of cytokine signaling-1) in the beta cell line.
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9 |
11342558
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We demonstrated that SOCS-1 suppressed cytokine-induced STAT-1 phosphorylation and increased cellular accumulation.
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10 |
11967010
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We found that Ang II-induced JAK2, STAT1, STAT3, STAT5A/B and SHP-2 phosphorylations were enhanced by HG, whereas that of SHP-1 was reduced.
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11 |
12424252
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In order to investigate the effects of CNTF on fat cells, we examined the expression of CNTF receptor complex proteins (LIFR, gp130, and CNTFRalpha) during adipocyte differentiation and the effects of CNTF on STAT, Akt, and MAPK activation.
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12 |
12424252
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Moreover, we demonstrated that CNTF can activate STAT 3 in adipose tissue and skeletal muscle in vivo.
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13 |
12921973
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Leptin induced phosphorylation of Janus kinase (JAK)2, signal transducer and activator of transcription (STAT)3, and extracellular signal-regulated kinase (ERK) in ECs from ZL rats but not ZF rats.
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14 |
15601754
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Treatment of rat VSMCs with 5-HT (10(-6) M) resulted in time-dependent activation ( approximately 2-fold) of JAK2, JAK1, and STAT1, but not STAT3 (maximal at 5 min, returned to baseline by 30 min).
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15 |
15749807
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Previous studies in our laboratory have shown that GH induction of signal transducers and activators of transcription (STAT)5B tyrosine phosphorylation is inhibited by prolonged insulin treatment, probably via downregulation of GHR.
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16 |
16306347
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IL-1beta and/or TNF-alpha plus IFN-gamma induce beta-cell apoptosis via the activation of beta-cell gene networks under the control of the transcription factors NF-kappaB and STAT-1.
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17 |
16306356
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Leptin stimulation led to janus kinase (JAK)2-dependent phosphorylation and nuclear translocation of the transcription factors signal transducer and activator of transcription (STAT)3 and STAT5b in INS-1 beta-cells.
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18 |
16876574
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Leptin activates Janus-activating kinase2 (Jak2) and STAT 3, resulting in stimulation of anorexigenic peptides, e.g., alpha-MSH and CART, and inhibition of orexigenic peptides, e.g., NPY and AGRP.
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19 |
17003334
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Pancreatic beta-cell growth and survival and insulin production are stimulated by growth hormone and prolactin through activation of the transcription factor signal transducer and activator of transcription (STAT)5.
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20 |
17097800
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We examined penile brain-derived neurotrophic factor (BDNF) and neurotrophin-3 (NT-3) expression, and activation of the Janus kinase (JAK)/signal transducer and activator of transcription (STAT) molecular pathway in the major pelvic ganglion (MPG) after CN injury in the rat.
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21 |
17620422
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The induction of X-linked inhibitor of apoptosis protein by TNF-alpha was inhibited by IFN-gamma in STAT1(+/-) islet cells but not in STAT1(-/-) islet cells.
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22 |
18481951
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We demonstrated that the absence of STAT-1 from beta-cells completely protects against IFNgamma+IL-1beta- and IFNgamma+dsRNA-mediated beta-cell death in vitro, whereas absence of IRF-1 does not prevent cytokine-induced beta-cell apoptosis.
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23 |
18481951
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Transcription factors drive this dual role, with STAT-1 driving beta-cell destruction and IRF-1 possibly playing a role in up-regulation of protective pathways induced by IFNgamma.
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24 |
18260110
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Mutations in the BTK, SH2D1A, ZAP70, STAT1, and STAT5B genes have been shown to cause diverse immunodeficiencies, whereas the mutations in RASA1 and PIK3R1 genes lead to basal carcinoma and diabetes, respectively.
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25 |
19120282
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We demonstrate that KRV activates the signal transducer and activator of transcription (STAT)-1 in spleen cells in vitro and that this activation can be blocked by TLR9 inhibition.
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26 |
19205029
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Indeed, pioglitazone prevented aberrant increases in signal transducers and activators of transcription (STAT)3 phosphorylation and suppressor of cytokine signaling (SOCS)-3 mRNA in the liver in KK-A(y) mice.
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27 |
19661066
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Berberine down-regulated the activity of STAT1 and STAT4 through the suppression of p38 MAPK and JNK activation, and it controlled the stability of STAT4 through the ubiquitin-proteasome pathway.
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28 |
19647793
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Inhibition of STAT1 by siRNA or dominant-negative DNA did not affect ATF3 protein expression but blocked IFN-gamma-induced ATF3 translocation from the cytosol into the nucleus.
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29 |
19647793
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Furthermore, GST pull-down and co-IP assay showed that STAT1 bound to C-terminal domain of ATF3.
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30 |
19741197
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In conclusion, we have identified a novel regulatory pathway involving increased gene expression of the SNAT2 isoform mediated by a STAT-dependent pathway, which links IL-6 to increased activity of system A, a ubiquitously expressed transporter of neutral amino acids.
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31 |
20408817
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In the present study we show that XBP1s, the active spliced form of XBP1 protein, is SUMOylated, mainly by PIAS2 [protein inhibitor of activated STAT (signal transducer and activator of transcription) 2] at two lysine residues located in the C-terminal transactivation domain.
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32 |
20635178
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IFN-? induced expression of CXCL10 through activation of signal transducer and activator of transcription-1 (STAT-1).
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33 |
20600850
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Here, we investigated whether activating transcription factor 3 (ATF3) affects STAT1-mediated beta-cell dysfunction and apoptosis in streptozotocin-treated mice.
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34 |
20600850
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The STZ induction of ATF3 was completely depleted in IFN-gamma(-/-) mice, but not in STAT1(-/-) mice.
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35 |
20600850
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Furthermore, STAT1 did not affect ATF3 expression, but STAT1 depletion or its inactivation inhibited STZ-induced ATF3 nuclear translocation and beta-cell apoptosis.
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36 |
20600850
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Interestingly, ATF3 also increased STAT1 transcription by directly binding to a putative binding region (-116 to -96 bp) in the STAT1 promoter.
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37 |
20980260
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Thus, STAT1 promotes apoptosis and inflammation, whereas IRF-1 down-regulates inflammatory mediators.
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38 |
20980260
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STAT1, but not IRF-1, mediates the cytokine-induced loss of the differentiated ?-cell phenotype, as indicated by decreased insulin, Pdx1, MafA, and Glut2.
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39 |
18586252
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Furthermore, high glucose and IFN gamma exert the synergistic effect on MMP-1 expression by enhancing STAT1 phosphorylation and STAT1 transcriptional activity.
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40 |
14678947
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We hypothesized that the ACE inhibitor captopril and the ANG II-receptor antagonist candesartan would hinder hyperglycemic-induced activation of JAK and STAT proteins in rat glomeruli, demonstrating that ANG II plays an important role in the activation of these proteins in vivo.
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41 |
20185635
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Overexpression of SOCS reversed the glucose-induced activation of the JAK/STAT pathway, expression of STAT-dependent genes (chemokines, growth factors, and extracellular matrix proteins), and cell proliferation.
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42 |
16522740
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Analysis of the INGAP promoter suggested that candidate regulators of INGAP expression include the transcription factors PDX-1, NeuroD, PAN-1, STAT and AP-1.
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43 |
21490291
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Increased levels of IFN type 1 and IFN regulators Stat1 and IRF7 followed the upregulation of TLR9.
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44 |
21659501
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It is noteworthy that we show that IL-17 mediates significant and reproducible enhancement of IL-1?/interferon (IFN)-?-induced and tumor necrosis factor (TNF)-?/IFN-?-induced apoptosis in human islets, rat ?-cells, and INS-1E cells, in association with significant upregulation of ?-cell IL17RA expression via activation of the transcription factors STAT1 and nuclear factor (NF)-?B.
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45 |
18096691
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Leptin binding to its receptor triggers multiple signaling pathways, including signal transducer and activator of transcription 3 (Stat 3), phosphatidylinositol-3-kinase, and ERK.
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46 |
21929289
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In our study, we examined the role of PKC and PDGF receptor on JAK2 and STAT1 phosphorylation under high glucose (HG) condition (25 mmol/L) in response to Ang II in cultured vascular smooth muscle cells (VSMC).
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47 |
21929289
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High glucose markedly increased the phosphorylation of tyrosine residues of JAK2 and serine residues of STAT 1 compared with cells cultured in NG (5.5 mmol/L) with and without Ang II stimulation.
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48 |
17192474
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The GSK3beta mediators, P-Akt, P-extracellular signal-related kinase (ERK)1, and P-signal transducer and activator of transcription (STAT)3, were also significantly reduced in untreated DBR compared with NDBR rats.
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49 |
21937453
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Bim expression was transcriptionally regulated by STAT1, and its activation triggered cleavage of caspases.
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50 |
21984578
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RESEARCH DESIGN AND METHODS Small interfering RNAs were used to inhibit PTPN2, STAT1, Bim, and Jun NH(2)-terminal kinase 1 (JNK1) expression.
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