• Title/Summary/Keyword: COX-2$TNF-{\alpha}$

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Experimental Study about Pathway of Aconiti Ciliare Tuber on Allergic Reaction of Inflammation (초오의 항알레르기 염증반응 및 기전탐색에 관한 연구)

  • Kim, Won-Ill
    • Korean Journal of Oriental Medicine
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    • v.16 no.3
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    • pp.155-166
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    • 2010
  • Objetives : The purpose of this study was to examine the pathway of anti-allergic effects of Aconiti Ciliare Tuber (ACT). Methods : We examined cell viability, ${\beta}$-hexosaminidase release, pro-inflammatory cytokines secretion and mRNA expressions, nuclear factor-kappa B (NF-${\kappa}B$) (p65) activation, inhibitor kappa B-alpha ($I{\kappa}B-{\alpha}$) degradation, and MAPKs activation from RBL-2H3 cells pre-treatment by ACT of 1.0 mg/ml, 2.0 mg/ml separately. Results : We observed that ACT reduced the secretion of ${\beta}$-hexosaminidase, TNF-${\alpha}$, IL-4 and the expression of COX-2 mRNA in RBL-2H3 cells. Futhermore, ACT inhibited the levels of activation of NF-${\kappa}B$ (p65) protein, ERK MAPK, and degradation of $I{\kappa}B-{\alpha}$ in RBL-2H3 cells. Conclusions : These results show that ACT has an anti-histamine effect and inhibitory effect of NF-${\kappa}B$ (p65) through regulation of $I{\kappa}B-{\alpha}$ degradation. This improves that ACT could be used as an anti-allergic medicine.

Experimental Study about the Pathway of Inflammatory Allergic Reaction of Cheonmaec-tang (천맥탕(天麥湯)의 알레르기 염증반응 및 기전탐색에 관한 연구)

  • Kim, Yong-Hyeon;Lee, Seung-Yeon;Kim, Won-Il
    • The Journal of Pediatrics of Korean Medicine
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    • v.24 no.1
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    • pp.93-103
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    • 2010
  • Objectives The purpose of this study was to examine the pathway of anti-allergic effects of Cheonmaec-tang (CMT). Methods We examined the cell viability, $\beta$-hexosaminidase release, pro-inflammatory cytokines secretion and mRNA expressions, nuclear factor-kappa B (NF-${\kappa}B$) (p65) activation, inbibitor kappa B-alpha ($I{\kappa}B-{\alpha}$) degradation, and MAPKs activation in RBL-2H3 cells pre-treated by CMT of 2.0 mg/ml, 4.0 mg/ml separately. Results We observed that CMT reduced the secretion of $\beta$-hexosaminidase, TNF-$\alpha$, IL-4 and the expression of COX-2 mRNA in RBL-2H3 cells. Furthermore, CMT inhibited the levels of activation of NF-${\kappa}B$ (p65) protein, ERK MAPK, and degradation of $I{\kappa}B-{\alpha}$ in RBL-2H3 cells. Conclusions These results show that CMT has an anti-histamine effect and inhibitory effect of NF-${\kappa}B$ (p65) through regulation of $I{\kappa}B-{\alpha}$ degradation. These suggest that CMT could be used as an anti-allergic medicine.

Protective Effect of Myeongganbo Extract on Acetaminophen-Induced Liver Injury (명간보(明肝補) 추출물의 Acetaminophen 유도 간 손상에 대한 보호효과)

  • Kim, Hong-Jun;Mok, Ji-Ye;Park, Kwang-Hyun;Jeon, In-Hwa;Kim, Hyeon-Soo;Hwang, Sung-Yeoun;Jang, Seon-Il
    • The Korea Journal of Herbology
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    • v.27 no.2
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    • pp.85-91
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    • 2012
  • Objective : Myeongganbo (MGB) composited with Hovenia Semen, Puerariae Radix and Dioscoreae Rhizoma is the prescription for protection of liver function. The purpose of this study was to investigate the effects of MGB extract against acetaminophen (APAP)-induced liver injury in mice. Methods : MGB extract was prepared by extracting with hot distilled water. The extract was freeze-dried following filtration through vacuum distillation system. Mice fasted for overnight were orally administrated with or without MGB extract of different doses (25-200 mg/kg/day). After 30 min, APAP was orally applied with a single dose (400 mg/kg). The levels of alanine aminotransferase (ALT) and aspartate aminotransferase (AST) were measured in plasmas of mice. Glutathione (GSH), glutathione peroxidase GSH-px), cyclooxygenase-2 (COX-2) activity and tumor necrosis factor-${\alpha}$ (TNF-${\alpha}$) level were investigated in liver homogenates. Liver sections were stained with haematoxylin & eosin, anti-TNF-${\alpha}$ and anti-mouse COX-2 antibodies. Results : APAP treatment remarkably increased AST and ALT activities in plasma but inhibited GSH and GSH-px levels in liver homogenates. Also, liver injury was significantly accelerated by APAP treatment. Furthermore, APAP remarkably elevated COX-2 activity and TNF-${\alpha}$ levels in liver homogenates. However, administration of MGB extract was able to counteract these effects. Histological studies provided supportive evidence for biochemical and molecular analysis Conclusions : These results suggest that MGB extract has potent hepatoprotective effect against APAP-induced liver injury, these properties may contribute to liver disease care.

Inhibitory Effect of Alopecurus aequalis Sobol Ethanol Extracts on LPS-induced Inflammatory Response in RAW 264.7 Cells (LPS로 유도한 RAW 264.7 세포의 염증반응에서 뚝새풀 에탄올 추출물의 억제 효과)

  • Jung, Ho Kyung;Kang, Byoung Man;Jang, Ji Hun;Ahn, Byung Kwan;Yeo, Jun Hwan;Jung, Won Seok;Cho, Jung Hee;Kuk, Yong In;Hyun, Kyu Hwan;Cho, Hyun Woo
    • Korean Journal of Medicinal Crop Science
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    • v.22 no.2
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    • pp.98-104
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    • 2014
  • In the present study, we investigated the anti-inflammatory effects by Alopecurus aequalis Sobol on the lipopolysaccharide (LPS)-induced nitric oxide (NO) production by RAW 264.7 cell line. Consistent with these observations, DS reduced the LPS-induced expression of inducible nitric oxide synthase (iNOS) and cyclooxygenase-2 (COX-2) at the protein levels in a concentration-dependent manner. In addition, the release of tumor necrosis factor-${\alpha}$ (TNF-${\alpha}$) and interleukin-6 (IL-6) were also reduced by DS. Moreover, LPS increased expression phosphorylation of $I{\kappa}B{\alpha}$, but DS showed inhibitory effect by reducing LPS-inducible p-$I{\kappa}B{\alpha}$ expression level. These results suggest that the down regulation of iNOS, COX-2, TNF-${\alpha}$, and IL-6 expression by DS are achieved by the downregulation of NF-${\kappa}B$ activity, a transcription factor necessary for pro-inflammatory mediators, and that is also responsible for its anti-inflammatory effects.

Anti-inflammatory Effect of Oxya chinensis sinuosa Ethanol Extract in LPS-induced RAW 264.7 Cells (LPS로 유도된 RAW 264.7세포에 대한 벼메뚜기(Oxya chinensis sinuosa) 에탄올 추출물의 항염증 효과)

  • Yoon, Young-Il;Chung, Mi Yeon;Hwang, Jae-Sam;Goo, Tae-Won;Ahn, Mi-Young;Lee, Young-Bo;Han, Myung-Sea;Yun, Eun-Young
    • Journal of Life Science
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    • v.24 no.4
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    • pp.370-376
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    • 2014
  • Although the grasshopper Oxya chinensis sinuosa has long been used as food in Korea, there is little data on its functional effects. In this study, we investigated the anti-inflammatory effect of O. c. sinuosa ethanol extract (OCE) in RAW 264.7 mouse macrophage cells treated with lipopolysaccharide (LPS) for induction of inflammation. First, we determined that there is no cytotoxicity at $2,000{\mu}g/ml$ or less of OCE in RAW 264.7 cells. To evaluate the anti-inflammatory effects of OCE, we investigated expression levels of pro-inflammatory cytokines such as tumor necrosis factor (TNF)-${\alpha}$ and interleukin (IL)-6, and pro-inflammatory enzymes such as inducible nitric oxide synthase (iNOS) and cyclo-oxygenase-2 (COX-2) in LPS-induced RAW 264.7 cells. In addition, we examined whether OCE could inhibit translocation of NF-${\kappa}B$ p65 into the nucleus in LPS induced RAW 264.7 cells. As a result, we found that the mRNA and protein levels of TNF-${\alpha}$ and IL-6 decreased in LPS-induced RAW 264.7 cells after treatment with OCE in a dose-dependent manner. In addition, we confirmed a $2,000{\mu}g/ml$ concentration of OCE inhibited translocation of NF-${\kappa}B$ p65 by immunnostaining and Western blot analysis, and a decrease in the protein expression levels of iNOS and COX-2. Accordingly, we suppose that OCE has an anti-inflammatory effect through down-regulation of TNF-${\alpha}$, IL-6, iNOS, and COX-2 related to ${\kappa}B$ p65 inflammatory signaling pathways.

Anti-inflammatory Effect of Gyulpidaehwangbakcho-tang (Jupidahuangpoxiao-tang) in the Collagen-induced Arthritis Mouse Model

  • Song, Young-Il;Oh, Min-Seok
    • The Journal of Korean Medicine
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    • v.32 no.6
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    • pp.18-29
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    • 2011
  • Objectives: To investigate anti-inflammatory and anti-arthritic effects of Gyulpidaehwangbakcho-tang (GDBT) extract in a murine model of rheumatoid arthritis. Methods: The mice received $100{\mu}g$ of bovine type II collagen in Freund's complete adjuvant by intradermal injection at the base of the tail on day 0 and a booster injection on day 21. The mice were orally administered with GDBT (200 or 50mg/kg dissolved in distilled water) daily from day 1 to day 21 after arthritis incidence, and monitored for disease incidence and the severity of arthritis up to day 21. In order to evaluate the effect of GDBT on disease progression, we examined pro-inflammatory cytokines including IL-$1{\beta}$, IL-6, TNF-${\alpha}$, COX-2 and NOS-II. Results: GDBT produced a significant and dose dependent inhibition of arthritis and inflammation during the entire duration of the study. This action was characterized by the decreased production of IL-$1{\beta}$, IL-6, TNF-${\alpha}$, COX-2, and NOS-II in vivo. Conclusion: We believe that the anti-arthritic activity of GDBT is due to its modulatory effect on the expression of pro-inflammatory cytokine in the synovium. Our results contribute towards validation of the traditional use of GDBT in the treatment of RA and other inflammatory joint disorders.

Hepatitis Delta Virus Large Antigen Sensitizes to TNF-α-Induced NF-κB Signaling

  • Park, Chul-Yong;Oh, Sang-Heun;Kang, Sang Min;Lim, Yun-Sook;Hwang, Soon B.
    • Molecules and Cells
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    • v.28 no.1
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    • pp.49-55
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    • 2009
  • Hepatitis delta virus (HDV) infection causes fulminant hepatitis and liver cirrhosis. To elucidate the molecular mechanism of HDV pathogenesis, we examined the effects of HDV viral proteins, the small hepatitis delta antigen (SHDAg) and the large hepatitis delta antigen (LHDAg), on $NF-{\kappa}B$ signaling pathway. In this study, we demonstrated that $TNF-{\alpha}-induced$ $NF-{\kappa}B$ transcriptional activation was increased by LHDAg but not by SHDAg in both HEK293 and Huh7 cells. Furthermore, LHDAg promoted TRAF2-induced $NF-{\kappa}B$ activation. Using coimmunoprecipitation assays, we demonstrated that both SHDAg and LHDAg interacted with TRAF2 protein. We showed that isoprenylation of LHDAg was not required for the increase of $NF-{\kappa}B$ activity. We further showed that only LHDAg but not SHDAg increased the $TNF-{\alpha}-mediated$ nuclear translocation of p65. This was accomplished by activation of $I{\kappa}B_{\alpha}$ degradation by LHDAg. Finally, we demonstrated that LHDAg augmented the COX-2 expression level in Huh7 cells. These data suggest that LHDAg modulates $NF-{\kappa}B$ signaling pathway and may contribute to HDV pathogenesis.

Effect of garlic (Allium sativum L.) stems on inflammatory cytokines, iNOS and COX-2 expressions in Raw 264.7 cells induced by lipopolysaccharide (Lipopolysaccharide로 유도된 Raw 264.7 세포에서 마늘대 추출물(Allium sativum L. Stems)의 염증성 사이토카인 및 iNOS, COX-2 발현에 대한 효과 검증)

  • Cho, Yong Hun;Kim, Hyeon Jeong;Kim, Dong In;Jang, Jae Yoon;Kwak, Jae Hoon;Shin, Yu Hyeon;Cho, Yeon Gje;An, Bong Jeon
    • Food Science and Preservation
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    • v.22 no.4
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    • pp.613-621
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    • 2015
  • In this study, the anti-oxidant and anti-inflammatory activities of water extract (ASSW) and 70% ethanol extract (ASSE) of Allium sativum L. stems were investigated using Raw 264.7 cells induced by lipopolysaccharide (LPS). ABTS radical scavenging activities of ASSW and ASSE at $1000{\mu}g/mL$ concentration were 96.9% and 97.8%, respectively. In order to investigate the potential anti-inflammatory effects of ASSW and ASSE, nitric oxide (NO), pro-inflammatory cytokines, interleukin-6 (IL-6), and tumor necrosis factor including ${\alpha}$ (TNF-${\alpha}$), interleukin-$1{\beta}$ (IL-$1{\beta}$), and prostaglandin-E2 (PGE2) were measured. ASSW and ASSE at $100{\mu}g/mL$ concentration showed inhibitory effects against NO production by 18% and 23%, respectively. Production of IL-$1{\beta}$ and IL-6 after treatment with ASSW and ASSE at $100{\mu}g/mL$ decreased by approximately 28% and 15% for ASSW and 17% and 12% for ASSE, respectively. In addition, production of TNF-${\alpha}$ after treatment of $100{\mu}g/mL$ of ASSW and ASSE decreased by 24% and 23%, respectively. In addition, the treatment of $100{\mu}g/mL$ of ASSW and ASSE showed inhibitory expressions against PGE2 by 45.47% and 33.87%, respectively. These results suggested that ASSE showed greater inhibitory activity than that of the ASSW by the suppression of inflammatory mediators, including NO, IL-6, TNF-${\alpha}$ and PGE2 production, and the expressions of iNOS and COX-2 in macrophages. In conclusion, ASSW and ASSE may have some ancillary effects on inflammatory factors as potential anti-inflammatory agents.

The Anti-inflammatory Effect of Cheongyeonsan for Allergic Rhinitis (알러지성 비염에 대한 청연산 추출물의 항염증효과)

  • Kim, Jeong Won;Ahn, Sang Hyun;Kim, Ki Bong
    • The Journal of Pediatrics of Korean Medicine
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    • v.32 no.1
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    • pp.19-29
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    • 2018
  • Objectives This study investigated the effects of Cheongyeonsan for allergic rhinitis. Methods First, the GS/MS was used to analyze the effects of Cheongyeonsan by measuring inflammatory markers. Second, 3 groups of 10 6-week-old BALB/c mice were divided into Ctrl (no treatment), ARE (allergic rhinitis-induced without treatment), and CRT (allergic rhinitis-induced after Cheongyeonsan treatment) groups. Ovalbumin (OVA) was used as an antigen to induce allergic rhinitis and sensitization was performed by intraperitoneal injection of 0.1% OVA solution 21, 14, and 7 days before the onset of allergic rhinitis. Allergic rhinitis was induced by dropping OVA solution on the nasal cavity of each mouse for 5 days after the last sensitization. Seven days after the first induction, second induction was introduced by the same method. After making the section, MMP-9, substance P, $TNF-{\alpha}$, $NF-{\kappa}B$ p65, COX-2, iNOS and Nrf, apoptotic cells were observed by Masson trichrome staining, immunohistochemical staining, TUNEL of nasal mucosal tissues of each group. Results GC/MS results showed undecanoic acid. Masson trichrome results showed that the CRT group had less respiratory epithelial damage. Immunohistochemical staining showed CRT group had 58% decrease in MMP-9, 61% decrease in substance P, 55% decrease in $TNF-{\alpha}$, 38% decrease in $NF-{\kappa}B$ p65, 53% decrease in COX-2, 54% decrease in iNOS, 87% increase in Nrf compared to those of the ARE group. TUNEL showed a positive reaction of 84% increase in apoptotic cells greater than that of the ARE group. Conclusions Cheongyeonsan alleviates nasal mucosal damage and reduces inflammatory mediators from allergic rhinitis-induced mice.