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15-Deoxy-Δ(12,14)-prostaglandin J₂ Upregulates the Expression of 15-Hydroxyprostaglandin Dehydrogenase by Inducing AP-1 Activation and Heme Oxygenase-1 Expression in Human Colon Cancer Cells

Park JM, Na HK

BACKGROUND: Abnormal upregulation of prostaglandin Eâ‚‚ (PGEâ‚‚) is considered to be a key oncogenic event in the development and progression of inflammation-associated human colon cancer. It has been reported that...
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β-Carotene Inhibits Activation of NF-κB, Activator Protein-1, and STAT3 and Regulates Abnormal Expression of Some Adipokines in 3T3-L1 Adipocytes

Cho SO, Kim MH, Kim H

BACKGROUND: Oxidative stress occurs in white adipose tissue and dysregulates the expression of adipokines secreted from adipocytes. Since adipokines influence inflammation, supplementation with antioxidants might be beneficial for preventing oxidative...
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Crotonis Fructus Extract Inhibits 12-O-Tetradecanoylphorbol-13-Acetate-Induced Expression of Matrix Metalloproteinase-9 via the Activator Protein-1 Pathway in MCF-7 Cells

Song HK, Lee GS, Park SH, Noh EM, Kim JM, Ryu DG, Jung SH, Youn HJ, Lee YR, Kwon KB

PURPOSE: Metastatic cancers spread from the primary site of origin to other parts of the body. Matrix metalloproteinase-9 (MMP-9) is essential in metastatic cancers owing to its major role in...
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Anti-inflammatory effects of proanthocyanidin-rich red rice extract via suppression of MAPK, AP-1 and NF-κB pathways in Raw 264.7 macrophages

Limtrakul , Yodkeeree , Pitchakarn P, Punfa W

BACKGROUND/OBJECTIVES: Several pharmacological properties of red rice extract have been reported including anti-oxidant, anti-tumor, and reduced cancer cell invasion. This study was conducted to evaluate the anti-inflammatory effects of red...
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Engagement of CD99 Reduces AP-1 Activity by Inducing BATF in the Human Multiple Myeloma Cell Line RPMI8226

Gil M, Pak HK, Park SJ, Lee AN, Park YS, Lee H, Lee H, Kim KE, Lee KJ, Yoon DH, Chung YS, Park CS

CD99 signaling is crucial to a diverse range of biological functions including survival and proliferation. CD99 engagement is reported to augment activator protein-1 (AP-1) activity through mitogen-activated protein (MAP) kinase...
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TI-I-174, a Synthetic Chalcone Derivative, Suppresses Nitric Oxide Production in Murine Macrophages via Heme Oxygenase-1 Induction and Inhibition of AP-1

Kim MJ, Kadayat T, Kim DE, Lee ES, Park PH

Chalcones (1,3-diaryl-2-propen-1-ones), a flavonoid subfamily, are widely known for their anti-inflammatory properties. Propenone moiety in chalcones is known to play an important role in generating biological responses by chalcones. In...
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The Heterochromatin-1 Phosphorylation Contributes to TPA-Induced AP-1 Expression

Choi WJ

  • KMID: 2170624
  • Biomol Ther.
  • 2014 Jul;22(4):308-313.
Activator protein-1 (AP-1) is an inducible transcription factor that contributes to the generation of chronic inflammation in response to oxidative and electrophilic stress. Previous studies have demonstrated that the PI3K/Akt1...
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Activation of NF-kappaB and AP-1 in Peripheral Blood Mononuclear Cells Isolated from Patients with Diabetic Nephropathy

Nam J, Cho MH, Park JS, Lee GT, Kim HJ, Kang ES, Lee YM, Ahn CW, Cha BS, Lee EJ, Lim SK, Kim KR, Ha HJ, Lee HC

BACKGROUND: We evaluated the role of oxidative stress in diabetic nephropathy by measuring intracellular reactive oxygen species (ROS) and redox-sensitive transcription factors in isolated peripheral mononuclear cells (PBMC). METHODS: From...
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The Effects of Ischemic Preconditioning and K(ATP) channel Activation on the Expression of the PKC-epsilon, NF-kappaB and AP-1 in Ischemia-reperfused Rat Heart

Ahn DC, Chun SH, Seo YK, Jeon SK, Park HJ, Lee SW, Sim JH, Paik DJ

  • KMID: 1583637
  • Korean J Phys Anthropol.
  • 2006 Sep;19(3):165-178.
This study was aimed to elucidate the effects of K(ATP) activation during IPC on the PKC-epsilon, NF-kappaB and AP-1 in ischemia-reperfused rat hearts. SD male rats weighting from 300 to 350...
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Alterations of PKC theta, NF-kappa B, and AP-1 in Ischemic-reperfused Tibialis Anterior and Soleus Muscles of Rats

Seo YK, Jin CZ, Jun SK, Kim SB, Yoon YH, Park JJ, Paik DJ

  • KMID: 1512991
  • Korean J Phys Anthropol.
  • 2006 Mar;19(1):61-71.
Ischemic-reperfusion injury of skeletal muscles takes place in the phase of reperfusion and induces cellular damages through activating various transcription factors and genes, which initiate signal transduction. The purpose of...
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The Effect of an AP-1 decoy on Collagen Synthesis in Wound Healing on Rat Skin: The use of Gene Therapy to Minimise Scarring

Park SJ, Lee KS

  • KMID: 2302636
  • Korean J Dermatol.
  • 2005 Apr;43(4):435-441.
BACKGROUND: The wound healing process is composed of inflammation, cellular growth, migration, angiogenesis and an extracellular matrix composition. In this process, fibroblasts proliferate but leave scarring due to their excessive...
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Effects of Multiple Cyclic Episodes with Short Ischemia and Reperfusion on the Distribution of NF-kappa B, AP-1, Bcl-2, and Bax in Rectus Femoris Muscles of Rats

Seo YK, Paik DJ, Nam YS, Kweon TH, Kim TS

  • KMID: 2283202
  • Korean J Phys Anthropol.
  • 2005 Mar;18(1):45-55.
The present study was designed to observe the expression patterns of NF-kappa B and AP-1, redox-sensitive transcription factors, and Bcl-2 and Bax, apoptosis repressing and promoting factors, respectively, upon repetitive...
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Role of Activation of NF- B and AP-1 by Oxidative Stress in Atherosclerosis in Diabetic Patients

Kim CS, Lee GT, Park J, Cho MH, Nam JY, Park JS, Kim DM, Ahn CW, Cha BS, Lim SK, Kim KR, Lee HC

  • KMID: 2008154
  • J Korean Diabetes Assoc.
  • 2004 Aug;28(4):255-264.
BACKGROUND: The aim of this study was to evaluate the possible role of NF- B activation and AP-1 by oxidative stress in atherosclerosis in diabetic patients by measuring the carotid...
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Alteration of PKC, PKC theta, NF-kappa B and AP-1 in Ischemic-reperfused Soleus Muscle of Rat with Ischemic Preconditioning

Kim TS, Kim JH, Kim KW

  • KMID: 1848289
  • J Korean Orthop Res Soc.
  • 2004 Oct;7(2):184-190.
PURPOSE: This study was designed to examine the expression patterns of PKC, PKC theta which is a house-keeping member of PKC family in the skeletal muscle, and two redox sensitive...
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Changes of AP-1 Binding Activities in Rat Brain by Electroconvulsive Shock

Joo YH, Ahn YM, Kang UG, Koo YJ, Kim YS

  • KMID: 2340872
  • J Korean Neuropsychiatr Assoc.
  • 2003 Sep;42(5):544-552.
OBJECTIVES: ECS could have therapeutic effects on psychiatric illnesses by inducing IEGs, which in turn regulates expression of their target genes. We observed AP-1 binding activity and identified AP-1 binding...
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The Regulation of AP-1 DNA Binding Activity by Long-term Nicotine Stimulation in Bovine Adrenal Medullary Chromaffin Cells: Role of Second Messengers

Lee JK, Choi SS, Suh HW

  • KMID: 1615000
  • Korean J Physiol Pharmacol.
  • 2002 Apr;6(2):109-112.
The signal pathways involved in the regulation of AP-1 DNA binding activity in long-term nicotine stimulated bovine adrenal medullary chromaffin (BAMC) cells have not been well characterized. To understand the...
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Growth Regulation of Ovarian Cancer Cells through the Inactivation of AP-1 by Retinoid Derivatives

Koh YM, Park JS, Namkoong S, Lee SY, Kim SA, Hong KJ, Um SJ

  • KMID: 2329189
  • J Korean Cancer Assoc.
  • 2000 Dec;32(6):1043-1049.
PURPOSE: The growth regulatory effect of retinoid derivatives could be mediated by the transcriptional inactivation of AP-1 oncogenic transcription factor. By using ovarian cancer cell lines we were to investigate...
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Effects of dopamine and haloperidol on morphine-induced CREB and AP-1 DNA binding activities in differentiated SH-SY5Y human neuroblastoma cells

Kim SK, Kwon GY

  • KMID: 2071825
  • Korean J Physiol Pharmacol.
  • 1998 Dec;2(6):671-676.
In the present study, we first examined whether the changes in the DNA binding activities of the transcription factors, cAMP response element binding protein (CREB) and activator protein-1 (AP-1) mediate the long-term effects...
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Role of AP-1 Transcriptional Regulation of Vimentin Gene during 12-O-Tetradecanoylphorbol-13-Acetate Differentiation of HL-60 Cells

Lim K, Kim JH, Kweon DW, Kim SM, Lee MS, Yun KA, Son MY, Park JI, Yoon WH, Hwang BD

  • KMID: 2175342
  • J Korean Cancer Assoc.
  • 1998 Oct;30(5):997-1004.
PURPOSE: To gain insight on the role of AP-1 in transcriptional regulation of vimentin gene during differentiation of HL-60 cells by 12-0-tetradecanoylphorbol-13-acetate (TPA), the levels of vimentin mRNA and AP-1...
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The Effect of UVB on the NF-kB and AP-1 Activity in Cultured Human Keratinocytes and Fibroblasts

Koo BS, Ryoo YW, Lee KS

  • KMID: 2303452
  • Korean J Dermatol.
  • 1997 Jun;35(3):411-417.
BACKGROUND: Ultraviolet B(UVB) light, which can cause severe damage like induction and promotion of cancer, cutaneous inflammation and immunosuppression, represents one of the most important environmental impacts for humans. Keratinocytes...
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