phospholipase/hypoxia

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PEDF Inhibits the Activation of NLRP3 Inflammasome in Hypoxia Cardiomyocytes through PEDF Receptor/Phospholipase A2.

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The nucleotide-binding oligomerization domain-like receptor protein 3 (NLRP3) inflammasome has been linked to sterile inflammation, which is involved in ischemic injury in myocardial cells. Pigment epithelium-derived factor (PEDF) is a multifunctional secreted glycoprotein with many biological

Deregulated phospholipase D2/mammalian target of rapamycin/hypoxia-inducible factor 1 alpha in peripheral T lymphocytes of oral lichen planus correlated with disease severity.

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OBJECTIVE Oral lichen planus (OLP) is a common T lymphocyte-mediated autoimmune disease of unknown etiology. The mammalian target of rapamycin (mTOR) can regulate proliferation, apoptosis, and autophagy of T lymphocytes, therefore impacting the T lymphocyte-mediated immunity. The present study was

Postinjury serum secretory phospholipase A2 correlates with hypoxemia and clinical status at 72 hours.

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BACKGROUND Although trauma patients often suffer direct lung damage, an equally destructive mechanism of lung injury involves postinjury systemic inflammation. We postulate that secretory phospholipase A(2) (sPLA(2)) release induced by trauma relates to systemic inflammation that compromises both

Activation of the neuroprotective ERK signaling pathway by fructose-1,6-bisphosphate during hypoxia involves intracellular Ca2+ and phospholipase C.

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The mechanism of the neuroprotective action of the glycolytic pathway intermediate fructose-1,6-bisphosphate (FBP) may involve activation of a phospholipase-C (PLC) dependent MAP kinase signaling pathway. In this study, we determined whether FBP's capacity to decrease delayed cell death in

Anoxia induces phospholipase A2 activation in rabbit renal proximal tubules.

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Phospholipase A2 (PLA2) activation during anoxic cell injury was determined by use of a variety of approaches in rabbit proximal renal tubules. Arachidonic acid (AA) mass release increased from 4 +/- 1 (normoxia control) to 40 +/- 6 ng/mg protein after 20 min and 106 +/- 16 ng/mg protein after 40

Regulation by hypoxia of endothelin-1-stimulated phospholipase D activity in sheep pulmonary artery cultured smooth muscle cells.

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1. The aim of the study was to characterize the effects of hypoxia on agonist-stimulated phospholipase D (PLD) and phospholipase C activity of sheep pulmonary artery cultured smooth muscle cells. 2. Endothelin-1 (ET-1), 5-hydroxytryptamine (5-HT) and the protein kinase C (PKC) activator

Neuroprotection and intracellular Ca2+ modulation with fructose-1,6-bisphosphate during in vitro hypoxia-ischemia involves phospholipase C-dependent signaling.

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The neuroprotectant fructose-1,6-bisphosphate (FBP) preserves cellular [ATP] and prevents catastrophic increases in [Ca2+]i during hypoxia. Because FBP does not enter neurons or glia, the mechanism of protection is not clear. In this study, we show that FBP's capacity to protect neurons and

Involvement of Ca2+-independent phospholipase A2 in the translocation of hypoxia-inducible factor-1alpha to the nucleus under hypoxic conditions.

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We investigated the role of Ca2+-independent phospholipase A2 (iPLA2) as well as cytosolic phospholipase A2 (cPLA2) in hypoxia-inducible factor-1 (HIF-1)-dependent gene expression. An inhibitor of both iPLA2 and cPLA2, methyl arachidonyl fluorophosphonate (MAFP), prevented hypoxia-induced

Hypoxia-inducible factor 1-alpha up-regulates the expression of phospholipase D2 in colon cancer cells under hypoxic conditions.

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Hypoxia is a common characteristic of solid tumors. Recent studies confirmed that phospholipase D2 (PLD2) plays significant roles in cancer progression. In this study, correlation between the expression of PLD2 and the change in the protein level of hypoxia-inducible factor 1-alpha (HIF1-α) was

Hypoxia increases group IIA phospholipase A(2) expression under inflammatory conditions in rat renal mesangial cells.

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Hypoxia evokes a common mechanism of oxygen sensing mediated by hypoxia-inducible transcription factors (HIF) in many mammalian cells. This study investigated the effect of hypoxia on group-IIA secretory phospholipase A(2) (sPLA(2)-IIA) expression in renal mesangial cells. Stimulation of cells with

Hypoxia-sensitive domain in the human cytosolic phospholipase A2 promoter.

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Transcription from the human cytosolic phospholipase A2 gene has been observed to be hypoxia sensitive in endothelial cells cultured from the human cerebral microvasculature. DNA sequence analysis of the cytosolic phospholipase A2 promoter revealed the presence of a distal cluster of potential

Up-regulation of cyclooxygenase-2 by cobalt chloride-induced hypoxia is mediated by phospholipase D isozymes in human astroglioma cells.

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Cyclooxygenase-2 (COX-2) is an isoform of prostaglandin H synthase induced by hypoxia and has been implicated in the growth and progression of a variety of human cancers. In the present study, we investigated the role of phospholipase D (PLD) isozymes in cobalt chloride (CoCl(2))-induced

Losartan attenuates aortic endothelial apoptosis induced by chronic intermittent hypoxia partly via the phospholipase C pathway.

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OBJECTIVE Endoplasmic reticulum (ER) stress is known to play key roles in the development of endothelial cell apoptosis induced by chronic intermittent hypoxia (CIH), and the angiotensin II-phospholipase C-inositol-1,4,5-triphosphate (AngII-PLC-IP3) pathway has been demonstrated to induce ER stress.

Mepacrine protects the isolated rat heart during hypoxia and reoxygenation--but not by inhibition of phospholipase A2.

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Mepacrine (quinacrine) has in a number of studies been shown to protect the heart from ischemic injury, a protection commonly claimed to be due to inhibition of phospholipase A2. The aim of the present study was to investigate the effect of mepacrine 1 microM on isolated, buffer perfused rat hearts

Chronic intermittent hypoxia affects the cytosolic phospholipase A2α/cyclooxygenase 2 pathway via β2-adrenoceptor-mediated ERK/p38 stimulation.

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Cardiac resistance against acute ischemia/reperfusion (I/R) injury can be enhanced by adaptation to chronic intermittent hypoxia (CIH), but the changes at the molecular level associated with this adaptation are still not fully explored. Phospholipase A2 (PLA2) plays an important role in phospholipid

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