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PMID |
Sentence |
1 |
16207831
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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).
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2 |
16207831
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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.
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3 |
16207831
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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.
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4 |
16207831
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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.
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5 |
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).
|
6 |
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.
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7 |
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.
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8 |
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.
|
9 |
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).
|
10 |
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.
|
11 |
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.
|
12 |
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.
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13 |
32583562
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Smad3 signaling and transgelin expression are often activated during puromycin aminonucleoside (PAN)-induced podocyte injury.
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14 |
32583562
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The effects of SIS3 on the expression of the podocyte cytoskeletal proteins transgelin, p15INK4B , phosphor-smad3, phosphor-JAK/stat3, the apoptotic marker cleaved caspase 3, and c-myc were investigated using western blot.
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15 |
32583562
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Transgelin expression and Smad3 phosphorylation were increased in the MPC5 cell line with prolonged PAN treatment.
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16 |
32583562
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In addition, c-myc expression, p15INK4B , and JAK phosphorylation were all increased after treatment with PAN.
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17 |
32583562
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Moreover, stimulating podocytes directly with TGFβ-1 also led to enhanced expression of transgelin or phosphor-JAK/stat3, and this could be inhibited by SIS3.
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18 |
32583562
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In conclusion, transgelin expression was induced through the Smad3 signaling pathway during PAN-induced podocyte injury, and the resulting abnormal distribution of F-actin and the enhanced expression of transgelin could be reversed by blockade of this pathway.
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19 |
32583562
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Smad3 signaling and transgelin expression are often activated during puromycin aminonucleoside (PAN)-induced podocyte injury.
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20 |
32583562
|
The effects of SIS3 on the expression of the podocyte cytoskeletal proteins transgelin, p15INK4B , phosphor-smad3, phosphor-JAK/stat3, the apoptotic marker cleaved caspase 3, and c-myc were investigated using western blot.
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21 |
32583562
|
Transgelin expression and Smad3 phosphorylation were increased in the MPC5 cell line with prolonged PAN treatment.
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22 |
32583562
|
In addition, c-myc expression, p15INK4B , and JAK phosphorylation were all increased after treatment with PAN.
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23 |
32583562
|
Moreover, stimulating podocytes directly with TGFβ-1 also led to enhanced expression of transgelin or phosphor-JAK/stat3, and this could be inhibited by SIS3.
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24 |
32583562
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In conclusion, transgelin expression was induced through the Smad3 signaling pathway during PAN-induced podocyte injury, and the resulting abnormal distribution of F-actin and the enhanced expression of transgelin could be reversed by blockade of this pathway.
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