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PMID |
Sentence |
1 |
12545247
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Although in vitro studies suggest that TGF-beta(2) is equally potent to TGF-beta(1) in terms of its antimitogenic and fibrogenic effects, much less is known about the regulation of TGF-beta(2) in renal diseases associated with glomerular cell hyperplasia and matrix expansion.
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2 |
12545247
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Here we investigated the glomerular expression patterns of TGF-beta(2) and of the TGF-beta receptors I, II, and III during the course of rat anti-Thy1.1 nephritis (days 2, 6, 12, and 56), a model characterized by transient mesangial hypercellularity and extracellular matrix accumulation.
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3 |
12545247
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TGF-beta(2) exhibited dynamic changes in expression.
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4 |
12545247
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On day 6 of anti-Thy1.1 nephritis both TGF-beta(2) positive podocytes and mesangial cells were more abundant.
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5 |
12545247
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By western blot analysis of isolated glomeruli from nephritic rats, protein expression of TGF-beta(2) was upregulated tenfold over control glomeruli, peaking on day 6 of the disease.
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6 |
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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7 |
12545247
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Expression of TGF-beta receptor II was strongly enhanced on days 6 and 12 of disease, while TGF-beta receptor III was upregulated only on day 6.
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8 |
12545247
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In summary, we report marked yet transient upregulation of TGF-beta(2) protein and of TGF-beta receptors I, II, and III in glomerular cells during anti-Thy1.1 nephritis.
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9 |
12545247
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These results are in keeping with the notion that TGF-beta(2) and its receptors participate in the pathogenesis and/or resolution of this transient form of glomerulonephritis.
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10 |
12545247
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Although in vitro studies suggest that TGF-beta(2) is equally potent to TGF-beta(1) in terms of its antimitogenic and fibrogenic effects, much less is known about the regulation of TGF-beta(2) in renal diseases associated with glomerular cell hyperplasia and matrix expansion.
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11 |
12545247
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Here we investigated the glomerular expression patterns of TGF-beta(2) and of the TGF-beta receptors I, II, and III during the course of rat anti-Thy1.1 nephritis (days 2, 6, 12, and 56), a model characterized by transient mesangial hypercellularity and extracellular matrix accumulation.
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12 |
12545247
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TGF-beta(2) exhibited dynamic changes in expression.
|
13 |
12545247
|
On day 6 of anti-Thy1.1 nephritis both TGF-beta(2) positive podocytes and mesangial cells were more abundant.
|
14 |
12545247
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By western blot analysis of isolated glomeruli from nephritic rats, protein expression of TGF-beta(2) was upregulated tenfold over control glomeruli, peaking on day 6 of the disease.
|
15 |
12545247
|
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.
|
16 |
12545247
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Expression of TGF-beta receptor II was strongly enhanced on days 6 and 12 of disease, while TGF-beta receptor III was upregulated only on day 6.
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17 |
12545247
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In summary, we report marked yet transient upregulation of TGF-beta(2) protein and of TGF-beta receptors I, II, and III in glomerular cells during anti-Thy1.1 nephritis.
|
18 |
12545247
|
These results are in keeping with the notion that TGF-beta(2) and its receptors participate in the pathogenesis and/or resolution of this transient form of glomerulonephritis.
|
19 |
12545247
|
Although in vitro studies suggest that TGF-beta(2) is equally potent to TGF-beta(1) in terms of its antimitogenic and fibrogenic effects, much less is known about the regulation of TGF-beta(2) in renal diseases associated with glomerular cell hyperplasia and matrix expansion.
|
20 |
12545247
|
Here we investigated the glomerular expression patterns of TGF-beta(2) and of the TGF-beta receptors I, II, and III during the course of rat anti-Thy1.1 nephritis (days 2, 6, 12, and 56), a model characterized by transient mesangial hypercellularity and extracellular matrix accumulation.
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21 |
12545247
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TGF-beta(2) exhibited dynamic changes in expression.
|
22 |
12545247
|
On day 6 of anti-Thy1.1 nephritis both TGF-beta(2) positive podocytes and mesangial cells were more abundant.
|
23 |
12545247
|
By western blot analysis of isolated glomeruli from nephritic rats, protein expression of TGF-beta(2) was upregulated tenfold over control glomeruli, peaking on day 6 of the disease.
|
24 |
12545247
|
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.
|
25 |
12545247
|
Expression of TGF-beta receptor II was strongly enhanced on days 6 and 12 of disease, while TGF-beta receptor III was upregulated only on day 6.
|
26 |
12545247
|
In summary, we report marked yet transient upregulation of TGF-beta(2) protein and of TGF-beta receptors I, II, and III in glomerular cells during anti-Thy1.1 nephritis.
|
27 |
12545247
|
These results are in keeping with the notion that TGF-beta(2) and its receptors participate in the pathogenesis and/or resolution of this transient form of glomerulonephritis.
|
28 |
12545247
|
Although in vitro studies suggest that TGF-beta(2) is equally potent to TGF-beta(1) in terms of its antimitogenic and fibrogenic effects, much less is known about the regulation of TGF-beta(2) in renal diseases associated with glomerular cell hyperplasia and matrix expansion.
|
29 |
12545247
|
Here we investigated the glomerular expression patterns of TGF-beta(2) and of the TGF-beta receptors I, II, and III during the course of rat anti-Thy1.1 nephritis (days 2, 6, 12, and 56), a model characterized by transient mesangial hypercellularity and extracellular matrix accumulation.
|
30 |
12545247
|
TGF-beta(2) exhibited dynamic changes in expression.
|
31 |
12545247
|
On day 6 of anti-Thy1.1 nephritis both TGF-beta(2) positive podocytes and mesangial cells were more abundant.
|
32 |
12545247
|
By western blot analysis of isolated glomeruli from nephritic rats, protein expression of TGF-beta(2) was upregulated tenfold over control glomeruli, peaking on day 6 of the disease.
|
33 |
12545247
|
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.
|
34 |
12545247
|
Expression of TGF-beta receptor II was strongly enhanced on days 6 and 12 of disease, while TGF-beta receptor III was upregulated only on day 6.
|
35 |
12545247
|
In summary, we report marked yet transient upregulation of TGF-beta(2) protein and of TGF-beta receptors I, II, and III in glomerular cells during anti-Thy1.1 nephritis.
|
36 |
12545247
|
These results are in keeping with the notion that TGF-beta(2) and its receptors participate in the pathogenesis and/or resolution of this transient form of glomerulonephritis.
|
37 |
12545247
|
Although in vitro studies suggest that TGF-beta(2) is equally potent to TGF-beta(1) in terms of its antimitogenic and fibrogenic effects, much less is known about the regulation of TGF-beta(2) in renal diseases associated with glomerular cell hyperplasia and matrix expansion.
|
38 |
12545247
|
Here we investigated the glomerular expression patterns of TGF-beta(2) and of the TGF-beta receptors I, II, and III during the course of rat anti-Thy1.1 nephritis (days 2, 6, 12, and 56), a model characterized by transient mesangial hypercellularity and extracellular matrix accumulation.
|
39 |
12545247
|
TGF-beta(2) exhibited dynamic changes in expression.
|
40 |
12545247
|
On day 6 of anti-Thy1.1 nephritis both TGF-beta(2) positive podocytes and mesangial cells were more abundant.
|
41 |
12545247
|
By western blot analysis of isolated glomeruli from nephritic rats, protein expression of TGF-beta(2) was upregulated tenfold over control glomeruli, peaking on day 6 of the disease.
|
42 |
12545247
|
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.
|
43 |
12545247
|
Expression of TGF-beta receptor II was strongly enhanced on days 6 and 12 of disease, while TGF-beta receptor III was upregulated only on day 6.
|
44 |
12545247
|
In summary, we report marked yet transient upregulation of TGF-beta(2) protein and of TGF-beta receptors I, II, and III in glomerular cells during anti-Thy1.1 nephritis.
|
45 |
12545247
|
These results are in keeping with the notion that TGF-beta(2) and its receptors participate in the pathogenesis and/or resolution of this transient form of glomerulonephritis.
|
46 |
12545247
|
Although in vitro studies suggest that TGF-beta(2) is equally potent to TGF-beta(1) in terms of its antimitogenic and fibrogenic effects, much less is known about the regulation of TGF-beta(2) in renal diseases associated with glomerular cell hyperplasia and matrix expansion.
|
47 |
12545247
|
Here we investigated the glomerular expression patterns of TGF-beta(2) and of the TGF-beta receptors I, II, and III during the course of rat anti-Thy1.1 nephritis (days 2, 6, 12, and 56), a model characterized by transient mesangial hypercellularity and extracellular matrix accumulation.
|
48 |
12545247
|
TGF-beta(2) exhibited dynamic changes in expression.
|
49 |
12545247
|
On day 6 of anti-Thy1.1 nephritis both TGF-beta(2) positive podocytes and mesangial cells were more abundant.
|
50 |
12545247
|
By western blot analysis of isolated glomeruli from nephritic rats, protein expression of TGF-beta(2) was upregulated tenfold over control glomeruli, peaking on day 6 of the disease.
|
51 |
12545247
|
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.
|
52 |
12545247
|
Expression of TGF-beta receptor II was strongly enhanced on days 6 and 12 of disease, while TGF-beta receptor III was upregulated only on day 6.
|
53 |
12545247
|
In summary, we report marked yet transient upregulation of TGF-beta(2) protein and of TGF-beta receptors I, II, and III in glomerular cells during anti-Thy1.1 nephritis.
|
54 |
12545247
|
These results are in keeping with the notion that TGF-beta(2) and its receptors participate in the pathogenesis and/or resolution of this transient form of glomerulonephritis.
|
55 |
12545247
|
Although in vitro studies suggest that TGF-beta(2) is equally potent to TGF-beta(1) in terms of its antimitogenic and fibrogenic effects, much less is known about the regulation of TGF-beta(2) in renal diseases associated with glomerular cell hyperplasia and matrix expansion.
|
56 |
12545247
|
Here we investigated the glomerular expression patterns of TGF-beta(2) and of the TGF-beta receptors I, II, and III during the course of rat anti-Thy1.1 nephritis (days 2, 6, 12, and 56), a model characterized by transient mesangial hypercellularity and extracellular matrix accumulation.
|
57 |
12545247
|
TGF-beta(2) exhibited dynamic changes in expression.
|
58 |
12545247
|
On day 6 of anti-Thy1.1 nephritis both TGF-beta(2) positive podocytes and mesangial cells were more abundant.
|
59 |
12545247
|
By western blot analysis of isolated glomeruli from nephritic rats, protein expression of TGF-beta(2) was upregulated tenfold over control glomeruli, peaking on day 6 of the disease.
|
60 |
12545247
|
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.
|
61 |
12545247
|
Expression of TGF-beta receptor II was strongly enhanced on days 6 and 12 of disease, while TGF-beta receptor III was upregulated only on day 6.
|
62 |
12545247
|
In summary, we report marked yet transient upregulation of TGF-beta(2) protein and of TGF-beta receptors I, II, and III in glomerular cells during anti-Thy1.1 nephritis.
|
63 |
12545247
|
These results are in keeping with the notion that TGF-beta(2) and its receptors participate in the pathogenesis and/or resolution of this transient form of glomerulonephritis.
|
64 |
12545247
|
Although in vitro studies suggest that TGF-beta(2) is equally potent to TGF-beta(1) in terms of its antimitogenic and fibrogenic effects, much less is known about the regulation of TGF-beta(2) in renal diseases associated with glomerular cell hyperplasia and matrix expansion.
|
65 |
12545247
|
Here we investigated the glomerular expression patterns of TGF-beta(2) and of the TGF-beta receptors I, II, and III during the course of rat anti-Thy1.1 nephritis (days 2, 6, 12, and 56), a model characterized by transient mesangial hypercellularity and extracellular matrix accumulation.
|
66 |
12545247
|
TGF-beta(2) exhibited dynamic changes in expression.
|
67 |
12545247
|
On day 6 of anti-Thy1.1 nephritis both TGF-beta(2) positive podocytes and mesangial cells were more abundant.
|
68 |
12545247
|
By western blot analysis of isolated glomeruli from nephritic rats, protein expression of TGF-beta(2) was upregulated tenfold over control glomeruli, peaking on day 6 of the disease.
|
69 |
12545247
|
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.
|
70 |
12545247
|
Expression of TGF-beta receptor II was strongly enhanced on days 6 and 12 of disease, while TGF-beta receptor III was upregulated only on day 6.
|
71 |
12545247
|
In summary, we report marked yet transient upregulation of TGF-beta(2) protein and of TGF-beta receptors I, II, and III in glomerular cells during anti-Thy1.1 nephritis.
|
72 |
12545247
|
These results are in keeping with the notion that TGF-beta(2) and its receptors participate in the pathogenesis and/or resolution of this transient form of glomerulonephritis.
|
73 |
16207831
|
Using a unique system of conditionally immortalized podocytes, it is demonstrated that autocrine TGF-beta2 induces G0/G1 arrest and differentiation under nonpermissive culture through Smad3-dependent induction of the cyclin-dependent kinase inhibitor p15(Ink4b) (Cdkn2b).
|
74 |
16207831
|
When exposed to recombinant TGF-beta1 (or TGF-beta2), nonpermissive culture podocytes switch to G2/M arrest and apoptosis, selectively at advanced TGF-beta concentrations and specifically in association with suppression of Cdkn2b and activation of proapoptotic p38 mitogen-activated protein kinase.
|
75 |
16207831
|
Autocrine TGF-beta2/Smad3/Cdkn2b signaling in podocytes specifies G0/G1 arrest associated with podocyte differentiation, whereas increasing TGF-beta concentrations beyond a critical threshold induces G2/M block and apoptosis associated with selective p38 mitogen-activated protein kinase activation and with suppression of Cdkn2b.
|
76 |
16207831
|
In summary, the results suggest a new functional requirement of TGF-beta2 in growth arrest and differentiation of murine podocytes in vitro and demonstrate that a critical TGF-beta concentration threshold may specify a molecular switch to proapoptotic signaling profiles and apoptosis.
|
77 |
16207831
|
Using a unique system of conditionally immortalized podocytes, it is demonstrated that autocrine TGF-beta2 induces G0/G1 arrest and differentiation under nonpermissive culture through Smad3-dependent induction of the cyclin-dependent kinase inhibitor p15(Ink4b) (Cdkn2b).
|
78 |
16207831
|
When exposed to recombinant TGF-beta1 (or TGF-beta2), nonpermissive culture podocytes switch to G2/M arrest and apoptosis, selectively at advanced TGF-beta concentrations and specifically in association with suppression of Cdkn2b and activation of proapoptotic p38 mitogen-activated protein kinase.
|
79 |
16207831
|
Autocrine TGF-beta2/Smad3/Cdkn2b signaling in podocytes specifies G0/G1 arrest associated with podocyte differentiation, whereas increasing TGF-beta concentrations beyond a critical threshold induces G2/M block and apoptosis associated with selective p38 mitogen-activated protein kinase activation and with suppression of Cdkn2b.
|
80 |
16207831
|
In summary, the results suggest a new functional requirement of TGF-beta2 in growth arrest and differentiation of murine podocytes in vitro and demonstrate that a critical TGF-beta concentration threshold may specify a molecular switch to proapoptotic signaling profiles and apoptosis.
|
81 |
16207831
|
Using a unique system of conditionally immortalized podocytes, it is demonstrated that autocrine TGF-beta2 induces G0/G1 arrest and differentiation under nonpermissive culture through Smad3-dependent induction of the cyclin-dependent kinase inhibitor p15(Ink4b) (Cdkn2b).
|
82 |
16207831
|
When exposed to recombinant TGF-beta1 (or TGF-beta2), nonpermissive culture podocytes switch to G2/M arrest and apoptosis, selectively at advanced TGF-beta concentrations and specifically in association with suppression of Cdkn2b and activation of proapoptotic p38 mitogen-activated protein kinase.
|
83 |
16207831
|
Autocrine TGF-beta2/Smad3/Cdkn2b signaling in podocytes specifies G0/G1 arrest associated with podocyte differentiation, whereas increasing TGF-beta concentrations beyond a critical threshold induces G2/M block and apoptosis associated with selective p38 mitogen-activated protein kinase activation and with suppression of Cdkn2b.
|
84 |
16207831
|
In summary, the results suggest a new functional requirement of TGF-beta2 in growth arrest and differentiation of murine podocytes in vitro and demonstrate that a critical TGF-beta concentration threshold may specify a molecular switch to proapoptotic signaling profiles and apoptosis.
|
85 |
16207831
|
Using a unique system of conditionally immortalized podocytes, it is demonstrated that autocrine TGF-beta2 induces G0/G1 arrest and differentiation under nonpermissive culture through Smad3-dependent induction of the cyclin-dependent kinase inhibitor p15(Ink4b) (Cdkn2b).
|
86 |
16207831
|
When exposed to recombinant TGF-beta1 (or TGF-beta2), nonpermissive culture podocytes switch to G2/M arrest and apoptosis, selectively at advanced TGF-beta concentrations and specifically in association with suppression of Cdkn2b and activation of proapoptotic p38 mitogen-activated protein kinase.
|
87 |
16207831
|
Autocrine TGF-beta2/Smad3/Cdkn2b signaling in podocytes specifies G0/G1 arrest associated with podocyte differentiation, whereas increasing TGF-beta concentrations beyond a critical threshold induces G2/M block and apoptosis associated with selective p38 mitogen-activated protein kinase activation and with suppression of Cdkn2b.
|
88 |
16207831
|
In summary, the results suggest a new functional requirement of TGF-beta2 in growth arrest and differentiation of murine podocytes in vitro and demonstrate that a critical TGF-beta concentration threshold may specify a molecular switch to proapoptotic signaling profiles and apoptosis.
|
89 |
19657322
|
Transforming growth factor-beta2 upregulates sphingosine kinase-1 activity, which in turn attenuates the fibrotic response to TGF-beta2 by impeding CTGF expression.
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90 |
19657322
|
Transforming growth factor-beta2 (TGF-beta2) stimulates the expression of pro-fibrotic connective tissue growth factor (CTGF) during the course of renal disease.
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91 |
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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92 |
19657322
|
Over-expression of SK-1 reduced CTGF induction, an effect mediated by intracellular sphingosine-1-phosphate.
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93 |
19657322
|
Similarly, in a mouse model of streptozotocin-induced diabetic nephropathy, SK-1 and CTGF were upregulated in podocytes.
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94 |
19657322
|
Transforming growth factor-beta2 upregulates sphingosine kinase-1 activity, which in turn attenuates the fibrotic response to TGF-beta2 by impeding CTGF expression.
|
95 |
19657322
|
Transforming growth factor-beta2 (TGF-beta2) stimulates the expression of pro-fibrotic connective tissue growth factor (CTGF) during the course of renal disease.
|
96 |
19657322
|
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.
|
97 |
19657322
|
Over-expression of SK-1 reduced CTGF induction, an effect mediated by intracellular sphingosine-1-phosphate.
|
98 |
19657322
|
Similarly, in a mouse model of streptozotocin-induced diabetic nephropathy, SK-1 and CTGF were upregulated in podocytes.
|