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(E)-3-(3-methoxyphenyl)-1-(2-pyrrolyl)-2-propenone displays suppression of inflammatory responses via inhibition of Src, Syk, and NF-kappaB

Kim Y, Jeong EJ, Han Lee IS, Kim MY, Cho JY

(E)-3-(3-methoxyphenyl)-1-(2-pyrrolyl)-2-propenone (MPP) is an aldol condensation product resulting from pyrrole-2-carbaldehyde and m- and p- substituted acetophenones. However, its biological activity has not yet been evaluated. Since it has been reported...
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Effect of Apocynin on Acute Lung Injury in Rats Given Interleukin-1alpha Intratracheally

Lee YM

  • KMID: 2319532
  • Tuberc Respir Dis.
  • 2011 Jun;70(6):482-489.
BACKGROUND: Based on the assertion that apocynin diminishes acute lung injury (ALI) by inhibition of NADPH oxidase, the effect of apocynin was tested in interleukin-1alpha (IL-1)-induced ALI in rats. METHODS: IL-1...
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Cilostazol Attenuates 4-hydroxynonenal-enhanced CD36 Expression on Murine Macrophages via Inhibition of NADPH Oxidase-derived Reactive Oxygen Species Production

Yun MR, Park HM, Seo KW, Kim CE, Yoon JW, Kim CD

Although anti-atherogenic effects of cilostazol have been suggested, its effects on the expression of SR in macrophages are unclear. This study investigated the role of cilostazol on CD36 expression...
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Effects of ATP and LTC4 on hypoxic pulmonary vasoconstriction in isolated rat lungs

Rho JY, Shin HY, Kim HC, Lee JW, Kim SD

BACKGROUND: Hypoxic pulmonary vasoconstriction (HPV) is unique to pulmonary circulation but the mechanism remains elusive. Red blood cells (RBCs) are known to augment HPV and to release more ATP as...
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Arachidonic Acid Activates K+-Cl--cotransport in HepG2 Human Hepatoblastoma Cells

Lee YS

K+-Cl--cotransport (KCC) has been reported to have various cellular functions, including proliferation and apoptosis of human cancer cells. However, the signal transduction pathways that control the activity of KCC are...
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Migration of Vascular Smooth Muscle Cells by High Glucose is Reactive Oxygen Dependent

An YS, Kwon JH, Kang YH, Kim IJ, Kim YK, Son SM

BACKGROUND: Oxidative stress contributes to vascular diseases in patients with diabetes. As the mechanism of development and progression of diabetic vascular complications is poorly understood, this study was aimed to...
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Phorbol 12-Myristate 13-Acetate Induces MUC16 Expression via PKCdelta and p38 in Human Airway Epithelial Cells

Bae CH, Kim HS, Song SY, Kim YD

OBJECTIVES: Phorbol 12-myristate 13-acetate (PMA) is widely used as a protein kinase C (PKC) activator, PKC is involved in the secretion of mucins. MUC16, one of the membrane-bound mucins, is...
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Phorbol 12-Myristate 13-Acetate Enhances Long-Term Potentiation in the Hippocampus through Activation of Protein Kinase Cdelta and epsilon

Kim EC, Lee MJ, Shin SY, Seol GH, Han SH, Yee J, Kim C, Min SS

Many intracellular proteins and signaling cascades contribute to the sensitivity of N-methyl-D-aspartate receptors (NMDARs). One such putative contributor is the serine/threonine kinase, protein kinase C (PKC). Activation of PKC by...
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Expression of NAD(P)H Oxidase Subunits and Their Contribution to Cardiovascular Damage in Aldosterone/Salt-Induced Hypertensive Rat

Park YM, Lim BH, Touyz RM, Park JB

NAD(P)H oxidase plays an important role in hypertension and its complication in aldosterone-salt rat. We questioned whether NAD(P)H oxidase subunit expression and activity are modulated by aldosterone and whether this...
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Rottlerin enhances IL-1beta-induced COX-2 expression through sustained p38 MAPK activation in MDA-MB-231 human breast cancer cells

Park EJ, Kwon TK

Cyclooxygenase-2 (COX-2) is an important enzyme in inflammation. In this study, we investigated the underlying molecular mechanism of the synergistic effect of rottlerin on interleukin1beta (IL-1beta)-induced COX-2 expression in MDA-MB-231...
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Prevention of TNF-induced necrotic cell death by rottlerin through a Nox1 NADPH oxidase

Byun HS, Won M, Park KA, Kim YR, Choi BL, Lee H, Hong JH, Piao L, Park J, Kim JM, Kweon GR, Kang SH, Han J, Hur GM

Previous studies have demonstrated that rottlerin, a specific PKCdelta inhibitor, potentiates death receptor- mediated apoptosis through a cytochrome c-dependent or -independent pathway. However, its ability to regulate necrotic cell death,...
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