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PMID |
Sentence |
1 |
24343645
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Janus kinase 3 activity is necessary for phosphorylation of cytosolic phospholipase A2 and prostaglandin E2 synthesis by macrophages infected with Francisella tularensis live vaccine strain.
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2 |
24343645
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The synthesis of PGE2 begins with the liberation of arachidonic acid (AA) from membrane phospholipids by cytosolic phospholipase A2 (cPLA2).
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3 |
24343645
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In this study, we show that cPLA2, p38 mitogen-activated protein kinase (MAPK), and Janus kinase 3 (JAK3) signaling are necessary for F. tularensis-induced PGE2 production.
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4 |
24343645
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Inhibition of JAK3 activity reduced the phosphorylation of cPLA2 and COX-2 protein levels.
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5 |
24343645
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In addition, JAK3 regulates cPLA2 phosphorylation independent of transcription.
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6 |
24343645
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Moreover, p38 MAPK activity is required for F. tularensis-induced COX-2 protein synthesis, but not for the phosphorylation of cPLA2.
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7 |
24343645
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This research highlights a unique signaling axis in which JAK3 and p38 MAPK regulate the activity of multiple enzymes of the PGE2-biosynthetic pathway in macrophages infected with F. tularensis.
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8 |
24343645
|
Janus kinase 3 activity is necessary for phosphorylation of cytosolic phospholipase A2 and prostaglandin E2 synthesis by macrophages infected with Francisella tularensis live vaccine strain.
|
9 |
24343645
|
The synthesis of PGE2 begins with the liberation of arachidonic acid (AA) from membrane phospholipids by cytosolic phospholipase A2 (cPLA2).
|
10 |
24343645
|
In this study, we show that cPLA2, p38 mitogen-activated protein kinase (MAPK), and Janus kinase 3 (JAK3) signaling are necessary for F. tularensis-induced PGE2 production.
|
11 |
24343645
|
Inhibition of JAK3 activity reduced the phosphorylation of cPLA2 and COX-2 protein levels.
|
12 |
24343645
|
In addition, JAK3 regulates cPLA2 phosphorylation independent of transcription.
|
13 |
24343645
|
Moreover, p38 MAPK activity is required for F. tularensis-induced COX-2 protein synthesis, but not for the phosphorylation of cPLA2.
|
14 |
24343645
|
This research highlights a unique signaling axis in which JAK3 and p38 MAPK regulate the activity of multiple enzymes of the PGE2-biosynthetic pathway in macrophages infected with F. tularensis.
|