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PMID |
Sentence |
1 |
15615851
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Proteinase-activated receptors 1 and 4 counter-regulate endostatin and VEGF release from human platelets.
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2 |
15615851
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Among these is the release of factors that regulate the process of angiogenesis, such as endostatin and VEGF, which, respectively, inhibit and promote angiogenesis.
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3 |
15615851
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PAR1 and PAR4 are expressed on the surface of human platelets and can be activated by thrombin.
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4 |
15615851
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In the present study, we have attempted to determine the roles of PAR1 and PAR4 in regulating release of endostatin and VEGF from human platelets.
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5 |
15615851
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Aggregation and endostatin release could be elicited by a specific PAR4 agonist (AYPGKF-NH(2)).
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6 |
15615851
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The PAR4 agonist concentration dependently suppressed VEGF release.
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7 |
15615851
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A selective PAR1 agonist (TFLLR-NH(2)) induced platelet aggregation and VEGF release but suppressed endostatin release.
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8 |
15615851
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Thrombin did not affect endostatin or VEGF release.
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9 |
15615851
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However, in the presence of a selective PAR1 antagonist (SCH79797), thrombin stimulated endostatin release and suppressed VEGF release.
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10 |
15615851
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Conversely, in the presence of a selective PAR4 antagonist (transcinnamoyl-YPGKF-NH(2)), thrombin stimulated VEGF release.
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11 |
15615851
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In vivo, treatment of rats with established gastric ulcers with a PAR1 antagonist each day for 1 wk resulted in a significant retardation of healing.
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12 |
15615851
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We conclude that PAR1 and PAR4 counter-regulate the release of endostatin and VEGF from platelets.
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13 |
15615851
|
Proteinase-activated receptors 1 and 4 counter-regulate endostatin and VEGF release from human platelets.
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14 |
15615851
|
Among these is the release of factors that regulate the process of angiogenesis, such as endostatin and VEGF, which, respectively, inhibit and promote angiogenesis.
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15 |
15615851
|
PAR1 and PAR4 are expressed on the surface of human platelets and can be activated by thrombin.
|
16 |
15615851
|
In the present study, we have attempted to determine the roles of PAR1 and PAR4 in regulating release of endostatin and VEGF from human platelets.
|
17 |
15615851
|
Aggregation and endostatin release could be elicited by a specific PAR4 agonist (AYPGKF-NH(2)).
|
18 |
15615851
|
The PAR4 agonist concentration dependently suppressed VEGF release.
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19 |
15615851
|
A selective PAR1 agonist (TFLLR-NH(2)) induced platelet aggregation and VEGF release but suppressed endostatin release.
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20 |
15615851
|
Thrombin did not affect endostatin or VEGF release.
|
21 |
15615851
|
However, in the presence of a selective PAR1 antagonist (SCH79797), thrombin stimulated endostatin release and suppressed VEGF release.
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22 |
15615851
|
Conversely, in the presence of a selective PAR4 antagonist (transcinnamoyl-YPGKF-NH(2)), thrombin stimulated VEGF release.
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23 |
15615851
|
In vivo, treatment of rats with established gastric ulcers with a PAR1 antagonist each day for 1 wk resulted in a significant retardation of healing.
|
24 |
15615851
|
We conclude that PAR1 and PAR4 counter-regulate the release of endostatin and VEGF from platelets.
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25 |
15615851
|
Proteinase-activated receptors 1 and 4 counter-regulate endostatin and VEGF release from human platelets.
|
26 |
15615851
|
Among these is the release of factors that regulate the process of angiogenesis, such as endostatin and VEGF, which, respectively, inhibit and promote angiogenesis.
|
27 |
15615851
|
PAR1 and PAR4 are expressed on the surface of human platelets and can be activated by thrombin.
|
28 |
15615851
|
In the present study, we have attempted to determine the roles of PAR1 and PAR4 in regulating release of endostatin and VEGF from human platelets.
|
29 |
15615851
|
Aggregation and endostatin release could be elicited by a specific PAR4 agonist (AYPGKF-NH(2)).
|
30 |
15615851
|
The PAR4 agonist concentration dependently suppressed VEGF release.
|
31 |
15615851
|
A selective PAR1 agonist (TFLLR-NH(2)) induced platelet aggregation and VEGF release but suppressed endostatin release.
|
32 |
15615851
|
Thrombin did not affect endostatin or VEGF release.
|
33 |
15615851
|
However, in the presence of a selective PAR1 antagonist (SCH79797), thrombin stimulated endostatin release and suppressed VEGF release.
|
34 |
15615851
|
Conversely, in the presence of a selective PAR4 antagonist (transcinnamoyl-YPGKF-NH(2)), thrombin stimulated VEGF release.
|
35 |
15615851
|
In vivo, treatment of rats with established gastric ulcers with a PAR1 antagonist each day for 1 wk resulted in a significant retardation of healing.
|
36 |
15615851
|
We conclude that PAR1 and PAR4 counter-regulate the release of endostatin and VEGF from platelets.
|