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PMID |
Sentence |
1 |
14531804
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In the cases of FSGS, the expression levels of TGF-beta 1, TSP-1, and TGF-betaIIR proteins and mRNAs and phosphorylated Smad2/Smad3 were significantly increased, particularly in the GEC of the sclerotic segments, wherein WT-1 and GLEPP-1 were not detected.
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2 |
15144593
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To assess the expression of connective tissue growth factor (CTGF), and the signaling pathway for the regulation of CTGF by transforming growth factor beta1 (TGF beta(1)) in podocytes.
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3 |
15840669
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Cultured mouse podocytes were treated with various doses of AngII for selected periods of time, with or without inhibitors of TGF-beta and VEGF signalling, SB-431542 and SU5416, respectively.
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4 |
15840669
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The expression of alpha3(IV) collagen was influenced by the TGF-beta system, but AngII did not increase the podocyte's production of TGF-beta1 ligand; rather, it increased the expression of the TGF-beta type II receptor and activated the TGF-beta signalling system through Smad2.
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5 |
15840669
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Despite the TGF-beta receptor upregulation, synergy between AngII and TGF-beta1 to boost alpha3(IV) collagen production was not observed.
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6 |
15840669
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However, blockade of TGF-beta signalling with SB-431542 prevented AngII from stimulating alpha3(IV) collagen production.
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7 |
15840669
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AngII stimulates the podocyte to produce alpha3(IV) collagen protein via mechanisms involving TGF-beta and VEGF signalling.
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8 |
16060125
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Enhanced circulating endothelial cells, elevated transforming growth factor beta, and depleted vascular endothelial growth factor were observed in nephrosis associated with focal segmental glomerulosclerosis (FSGS).
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9 |
17804487
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In these cells, BMP7 effectively activates smad5 (but not smad1) and raises p38 phosphorylation [which is also increased by transforming growth factor-beta (TGF-beta)].
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10 |
17804487
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HG as well as TGF-beta raise caspase-3 activity, increase apoptosis, and reduce cell survival which is, in part, blocked by BMP7.
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11 |
19403392
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The rats in BMP-7 group showed less urinary protein excretion, lower TGF-beta1 expression and greater glomerular podocyte number than those in the DM group, and the expression and distribution of nephrin remained normal in the kidney.
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12 |
19420107
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The TGF-beta-induced MCP-1 was found to activate the podocyte's cysteine-cysteine chemokine receptor 2 (CCR2) and, as a result, enhance the cellular motility, cause rearrangement of the actin cytoskeleton, and increase podocyte permeability to albumin in a Transwell assay.
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13 |
19420107
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The preceding effects of TGF-beta were replicated by treatment with recombinant MCP-1 and blocked by a neutralizing anti-MCP-1 antibody or a specific CCR2 inhibitor, RS102895.
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14 |
19420107
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In conclusion, this is the first description that TGF-beta signaling through PI3K induces the podocyte expression of MCP-1 that can then operate via CCR2 to increase cellular migration and alter albumin permeability characteristics.
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15 |
19657322
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Because sphingosine kinase-1 (SK-1) activity is also upregulated by TGF-beta, we studied its effect on CTGF expression and on the development of renal fibrosis.
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16 |
19679673
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TGF-beta promotes proapoptotic signaling mediated by Smad3 but also activates prosurvival pathways such as phosphoinositide-3 kinase (PI3K)/AKT; the latter requires the CD2-associated adaptor protein (CD2AP) in podocytes.
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17 |
19679673
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We found that the C-terminal region of CD2AP interacts directly with the cytoplasmic tail of the TGF-beta receptor type I (TbetaRI) in a kinase-dependent manner and that the interaction between the TbetaRI and the p85 subunit of PI3K requires CD2AP.
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18 |
19679673
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In vivo, to determine the effects of reduced Smad3 or CD2AP gene dosage on podocyte apoptosis and proteinuria characteristic of TGF-beta1 transgenic mice, we generated TGF-beta1 transgenic mice deficient for Smad3 or heterozygous for CD2AP.
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19 |
19875807
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In addition, TGF-beta induced CD133(+)CD24(+) progenitors to produce extracellular matrix, and these were the only cells to express the proliferation marker Ki67.
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20 |
20393144
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TGF-beta treatment also modulated the expression of certain miRNAs, including decreased expression of miR-192/215 in tubular cells, mesangial cells, which are also decreased in diabetic kidney.
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21 |
20393144
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Ectopic expression of miR-192/215 increased E-cadherin levels via repressed translation of ZEB2 mRNA, in the presence and absence of TGF-beta, as demonstrated by a ZEB2 3'-untranslated region luciferase reporter assay.
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22 |
20576680
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Connective tissue growth factor (CTGF) expression is stimulated by all TGF-beta isoforms and is abundant in glomerulosclerosis and other fibrotic disorders.
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23 |
20576680
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During the capillary loop and maturing glomerular stages and simultaneous with the presence of TGF-beta(1), -beta(2), and -beta(3) protein, CTGF mRNA expression was maximal and present only in differentiating glomerular epithelial cells.
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24 |
19214781
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It can promote TGF-beta signalling by binding directly to the growth factor, promoting its interaction with the TGF-beta receptor; by triggering intracellular signalling on binding the TrkA receptor, which leads to the transcriptional repression of Smad7, an inhibitor of the TGF-beta signalling pathway; and by binding to BMP-7 whose own signalling pathway opposing TGF-beta is inhibited, leading to enhanced TGF-beta signalling.
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25 |
20505657
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ILK expression was induced in mouse podocytes by various injurious stimuli known to cause proteinuria including TGF-beta1, adriamycin, puromycin, and high ambient glucose.
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26 |
20505657
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Blockade of ILK activity with a highly selective small molecule inhibitor reduced Snail induction and preserved podocyte phenotypes following TGF-beta1 or adriamycin stimulation.
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27 |
17018845
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Glomerular cells in culture respond to albumin containing Amadori glucose adducts (the principal serum glycated protein), with activation of protein kinase C-beta(1), increased expression of transforming growth factor (TGF)-beta1, the TGF-beta type II signaling receptor, and the extracellular matrix proteins alpha(1)(IV) collagen and fibronectin and with decreased production of the podocyte protein nephrin.
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28 |
12545247
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In cultured rat mesangial cells we found that the TGF-beta(2) and TGF-beta(1) isoforms were equally potent in terms of nuclear accumulation of phosphorylated Smad 2/3, inhibition of DNA synthesis, and induction of beta(1)-integrin and type I collagen protein synthesis.
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29 |
21378152
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We aimed to address whether TGF-beta affects WT1 expression in podocytes.
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30 |
21378152
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A human podocyte cell line treated with TGF-beta1 and kidneys in Alb/TGF-beta1-transgenic mice were analyzed for WT1 expression.
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31 |
21378152
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In cultured podocytes, TGF-beta1 reduced WT1 protein expression determined by western blotting beginning at 8 h and decreased WT1 messenger RNA (mRNA) expression measured by quantitative reverse transcription-polymerase chain reaction beginning at 3 h.
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32 |
21378152
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TGF-beta1 did not alter luciferase activity of the reporter construct for a human WT1 promoter but reduced that for a human WT1 5' enhancer construct, suggesting that TGF-beta1 may regulate WT1 expression by altering the 5' enhancer activity.
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33 |
21378152
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TGF-beta1 reduces WT1 expression in cultured human podocytes and podocytes in mice before overt glomerulosclerosis begins.
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