• 제목/요약/키워드: COX-II

검색결과 166건 처리시간 0.033초

사람 치은섬유모세포에서 잎꼬시래기 에탄올 추출물의 항염증 및 항산화 효과 (Anti-Inflammatory and Antioxidative Effects of Gracilaria textorii Ethanol Extract in LPS-PG-Stimulated Human Gingival Fibroblast-1 Cells)

  • 박충무;윤현서
    • 대한통합의학회지
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    • 제7권4호
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    • pp.61-69
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    • 2019
  • Purpose : Human gingival fibroblast cell is one of the the main cell types in periodontal tissue, which they can show anti-inflammatory activity through the production of numerous lines of inflammatory mediators such as inducible nitric oxide synthase (iNOS), cyclooxygenase (COX)-2 and interleukins. Porphyromonas gingivalis, one of the oral pathogens, has reported to play a critical role in the development of periodontal diseases. This study aimed to investigate anti-inflammatory and antioxidative activities of Gracilaria textorii ethanol extract (GTEE) in P. gingivalis derived lipopolysaccharide (LPS-PG) stimulated human gingival fibroblast (HGF)-1 cell line. Methods : In order to analyze anti-inflammatory and antioxidative activities of GTEE in HGF-1 cell line, NOS enzyme activity, expression levels of iNOS, COX-2, NAD(P)H quinone dehydrogenase (NQO)1 and their transcription factors were estimated by Griess reaction and western hybridization. Results : LPS-PG induced overexpression of iNOS and COX-2, which was significantly attenuated by GTEE treatment in a dose-dependent manner without any cytotoxicity. In addition, intracellular NOS activity was in accordance with the result of iNOS expression. Due to important role in the regulation of inflammatory responses, phosphorylated status of p65 and c-jun, each subunit of nuclear factor (NF)-κB and activator protein (AP)-1, was also dose-dependently ameliorated by GTEE treatment. One of phase II enzymes, NQO1, and its transcription factor, nuclear factor erythroid 2-related factor 2 (Nrf2), were analyzed since elevated phase II enzyme expression inhibited inflammatory response, which was significantly elevated by GTEE treatment in HGF-1 cell line. Conclusion : In conclusion, GTEE mitigated LPS-PG-stimulated inflammatory responses by attenuating NF-κB and AP-1 activation as well as accelerating NQO1 and Nrf2 expression in HGF-1 cell line. These results indicate that GTEE might be utilized a promising strategy for potential anti-inflammatory agent in periodontal diseases.

농도별 봉독약침이 생쥐의 Type II Collagen 유발 관절염에 미치는 영향 (The Effect of Varying Concentrations of Bee Venom Pharmacoupuncture Treatments on Type II Collagen Induced Arthritis in Mice)

  • 이승우;김유종;김은정;이승덕;김갑성;윤종화
    • Journal of Acupuncture Research
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    • 제29권1호
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    • pp.75-87
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    • 2012
  • Objectives : The purpose of this study is to inquire into the effect of different concentrations of bee venom pharmacopuncture to inhibit genesis of pro-inflammatory cytokines and to inhibit nuclear factor (NF)-${\kappa}B$ activation on type II collagen induced arthritis. Methods : The experiment was divided into category of the normal group (NOR)-no treated group, control group (CON)-CIA (collagen induced arthritis) induced group, and 4,000 : 1 bee venom group (BV-L)- 4000:1 bee venom pharmacopuncture treated group after CIA, and 2000:1 bee venom group (BV-H)- 2,000 : 1 Bee venom pharmacopuncture treated group after CIA. RA was induced in the mice via injecting $50{\mu}{\ell}$ C II mixed CFA. The bee venom pharmacopuncture was applied on $ST_{35}$ for 19 days from the 3rd day of RA inducement. To research the effect on the expression of IKK ($I{\kappa}B$ kinase), iNOS (inducible nitric oxide synthase) & COX-2 (cyclooxygenase-2) mRNA, RT-PCR was performed on synovial membrane cells from the knee joint of CIA mice. Results : The PMA-induced $I{\kappa}B$ kinase (IKK), inducible nitric oxide synthase (iNOS) and cyclooxygenase -2 (COX-2) mRNA expression were dose-dependantly decreased in bee venom treated with synoviocytes. In mice treated with bee venom pharmacopuncture, foot thickness and the damage of synovial membranes of the joint was lessened, and the activation of RA-related pro-inflammatory cytokines such as MIF, TNF-${\alpha}$ and MMP-9 was significantly decreased. The activation of iNOS and COX-2 was suppressed by the inhibition of NF-${\kappa}B$. In addition, each data was shown that 2,000 : 1 bee venom pharmacopuncture was more effective than 4,000 : 1 bee venom pharmacopuncture. Conclusions : It is speculated that bee venom pharmacopuncture has the therapeutic effect of palliating the damage of the synovial membrane and inflammation on RA by suppressing of NF-${\kappa}B$ activation.

유근피(楡根皮) 약침의 $NF-{\kappa}B$ 활성 억제능이 생쥐의 Type II Collagen 유발 관절염에 미치는 영향 (The Effectiveness of Ulmus Davidiana Planch Herbal Acupuncture to Inhibit $NF-{\kappa}B$ Activation on Type II Collagen-induced Arthritis in Mice)

  • 이아람;변혁;박인식;정찬영;강민주;김은정;이승덕;김갑성
    • Journal of Acupuncture Research
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    • 제24권6호
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    • pp.15-27
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    • 2007
  • Objectives : The purpose of this study is to investigate the effectiveness of Ulmus davidiana Planch herbal acupuncture(UA) to inhibit nuclear $factor(NF)-{\kappa}B$ activation on type II collagen-induced arthritis (CIA) in mice. Methods : Using an in vitro test, the synoviocytes picked out from the experimental CIA mice were subcultured. The synoviocyte cells were treated with phorbol-12-myristate-13-acetate(PMA) for 1 hour prior to the addition of indicated concentrations($0.4\;-\;1.0mg/m{\ell}$) of UA, and the cells were further incubated for 24 hours. The in vivo test, $NF-{\kappa}B$ p65, inducible nitric oxide synthase(iNOS), cyclooxygenase-2(COX-2), vascular cell adhesion molecule(VCAM)-1 production and apoptosis was observed by immunohistochemical staining. Results : The PMA-induced $I{\kappa}B$ kinase(IKK), iNOS and COX-2 mRNA expression were dose-dependently decreased in UA treated synoviocytes. Using the in vivo test, the number of eosinophils in mice treated with UA noticeably decreased in the the CIA group(P<0.05 using student t test). In mice treated with UA, there was less cartilage erosion. less bone destruction, mild synovial hyperplasia, mild fibrosis, and mild angiogenesis with less MIP-2 production. By immunohistochemical staining, suppression of $NF-{\kappa}B$ p65, iNOS production, inhibition of COX-2 production, inhibition of VCAM-1 production and inducing apoptosis were observed. Conclusions : These results suggest that UA might be applicable to the therapy of RA to suppress $NF-{\kappa}B$ activation.

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사람 위 상피세포의 염증반응에 대한 무의 효과 (Effect of Radish on Inflammatory Reaction in Human Epithelial Gastric Cell)

  • 손윤희;정유선;서정일;박인경;남경수
    • 생명과학회지
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    • 제16권1호
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    • pp.17-21
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    • 2006
  • The effects of Korean and Japanese radishes on inflammatory reaction that involves arachidonic acid cascades were investigated in human epithelial gastric cell. The activities of type I (porcine pancreas) and type II (Crotalus atrox) phospholipase $A_2(PLA_2$) were inhibited by radish. Cyclooxygenase-2 (COX-2) activity was significantly suppressed by radish (p<0.05, p<0.01 and p<0.005). The nitric oxide production was also inhibited by radish. The Korean radish was more effective in inhibition of $PLA_2$ and COX-2 activities and nitric oxide production than Japanease radish. These results indicate that radish has a protective effect on gastric epithelial cell inflammation by suppressing the activities of $PLA_2$ and COX-2 activities and nitric oxide production from gastric epithelial cell.

Overall and disease-specific survival outcomes following primary surgery for oral squamous cell carcinoma: analysis of consecutive 67 patients

  • Sim, Yookyeong Carolyn;Hwang, Jong-Hyun;Ahn, Kang-Min
    • Journal of the Korean Association of Oral and Maxillofacial Surgeons
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    • 제45권2호
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    • pp.83-90
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    • 2019
  • Objectives: This study evaluated the predictive factors for survival of patients with oral squamous cell carcinoma (OSCC) and investigated the overall and disease-specific survival (DSS) outcomes. Materials and Methods: A total of 67 consecutive patients who underwent surgery for OSCC from January 2006 to November 2014 were included in this study. Patients were classified according to age, sex, pTNM stages, primary sites, smoking and alcohol drinking habits, depth of invasion, perineural and lymphovascular invasion, cell differentiation and postoperative radiotherapy. Kaplan-Meier methods were used to estimate the survival categorized by patient groups. Cox regression methods were used to investigate the main independent predictors of survival. Results: Nineteen patients died of OSCC during follow-up periods. Another five patients died of other diseases including lung adenocarcinoma (n=1), cerebral infarction (n=1), general weakness (n=2), and pneumonia (n=1). The tongue (n=16) was the most common site for primary origin, followed by buccal mucosa (n=15), mandibular gingiva (n=15), maxillary gingiva (n=9), floor of mouth (n=9), retromolar trigone (n=2), and palate (n=1). Eleven patients had pTNM stage I disease, followed by stage II (n=22) and stage IV (n=34). No patients had pTNM stage III disease in this study. The overall survival of all patients was 64.2% and the DSS was 71.6%. DSS of patients with stage I and II disease was 100%. Stepwise Cox regression showed the two predictors for DSS were pTNM stage (P<0.0001, odds ratio=19.633) and presence of metastatic lymph nodes (P=0.0004, odds ratio=0.1039). Conclusion: OSCC has been associated with poor prognosis; however, there were improved survival outcomes compared with past studies. Advanced-stage disease and presence of metastatic lymph nodes were associated with poorer survival compared with early-stage OSCC and absence of neck node metastasis. Stage I and II OSCC were associated with excellent survival results in this study.

A549 폐암세포와 Sarcoma-180 복강암에 대한 홍삼(紅蔘) 증류약침(蒸溜藥鍼)의 영향에 관(關)한 실험적(寶驗的) 연구(硏究) (An Experimental Study on Effects of Distilled Red-ginseng Herbal Acupuncture on A549 human ephithelial lung cancer cell in vitro and implanted Sarcoma-180)

  • 원승환;권기록;이선구
    • 대한약침학회지
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    • 제7권2호
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    • pp.43-56
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    • 2004
  • Objectives : In order to investigate effects and immune improvement of distilled red-ginseng herbal Acupuncture, expression of Cox-1, Cox-2, and mRNA of Bcl-2 and Bax were analyzed in A549 cell in vivo. Survival time and expression of cytokine mRNA were measured for the mice with Sarcoma-180 induced abdominal cancer. Methods : Balb/c mouse was treated with distilled red-ginseng Herbal Acupuncture at Wisu($BL_{21}$) and Chung- wan($CV_{12}$) to investigate anti-cancer effects and immune response. Results : 1. For expression of mRNA of Cox-1 using RT-PCR, the control group and the experiment groups didn't show significant differences. For Cox-2, both experiment groups and the normal group showed significant differences. 2. For expression of mRNA of Bcl-2 using RT-PCR, experiment groups showed slight decrease compared to the control group. For Bax, no significant changes were shown between the control group and experiment groups. 3. For survival time, all of experiment groups showed 11.1% increase compared to the control group. 4. For IL-2 and IL-4 productivity using Flow cytometry, all of experiment groups didn't show any significance. 5. For IL-2 productivity using ELISA, all of experiment groups didn't show any significance. 6. For expression of cytokine mRNA using RT-PCR, significant increase of IL.-2 and IL-4 were witnessed in the experiment group II compared to the control group. Significant increase of IL-10 was shown in all off experiment groups compared to the control group. Conclusion : According to the results, we can expect that distilled red-ginseng Herbal Acupuncture may be further effccts in anti-cancer and immune improvement if increasing concentration.

p38 Kinase Regulates Nitric Oxide-induced Dedifferentiation and Cyclooxygenase-2 Expression of Articular Chondrocytes

  • Yu, Seon-Mi;Cheong, Seon-Woo;Cho, Sam-Rae;Kim, Song-Ja
    • IMMUNE NETWORK
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    • 제6권3호
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    • pp.117-122
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    • 2006
  • Background: Caveolin, a family of integral membrane proteins are a principal component of caveolae membranes. In this study, we investigated the effect of p38 kinase on differentiation and on inflammatory responses in sodium nitroprusside (SNP)-treated chondrocytes. Methods: Rabbit articular chondrocytes were prepared from cartilage slices of 2-week-old New Zealand white rabbits by enzymatic digestion. SNP was used as a nitric oxide (NO) donor. In this experiments measuring SNP dose response, primary chondrocytes were treated with various concentrations of SNP for 24h. The time course of the SNP response was determined by incubating cells with 1mM SNP for the indicated time period $(0{\sim}24h)$. The cyclooxygenase-2 (COX-2) and type II collagen expression levels were determined by immunoblot analysis, and prostaglandin $E_2\;(PGE_2)$ assay was used to measure the COX-2 activity. The tyrosine phosphorylation of caveolin-1 was determined by immunoblot analysis and immunostaining. Results: SNP treatment stimulated tyrosine phosphorylation of caveolin-1 and activation of p38 kinase. SNP additionally caused dedifferentiation and inflammatory response. We showed previously that SNP treatment stimulated activation of p38 kinase and ERK-1/-2. Inhibition of p38 kinase with SB203580 reduced caveolin-1 tyrosine phosphorylation and COX-2 expression but enhanced dedifferentiation, whereas inhibition of ERK with PD98059 did not affect caveolin-1 tyrosine phosphorylation levels, suggesting that ERK at least is not related to dedifferentiation and COX-2 expression through caveolin-1 tyrosine phosphorylation. Conclusion: Our results indicate that SNP in articular chondrocytes stimulates dedifferentiation and inflammatory response via p38 kinase signaling in association with caveolin-1 phosphorylation.

Ginsenoside Rp1, a Ginsenoside Derivative, Blocks Promoter Activation of iNOS and COX-2 Genes by Suppression of an IKKβ-mediated NF-κB Pathway in HEK293 Cells

  • Shen, Ting;Lee, Jae-Hwi;Park, Myung-Hwan;Lee, Yong-Gyu;Rho, Ho-Sik;Kwak, Yi-Seong;Rhee, Man-Hee;Park, Yung-Chul;Cho, Jae-Youl
    • Journal of Ginseng Research
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    • 제35권2호
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    • pp.200-208
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    • 2011
  • Ginsenoside (G) $Rp_1$ is a ginseng saponin derivative with anti-cancer and anti-inflammatory activities. In this study, we examined the mechanism by which G-$Rp_1$ inhibits inflammatory responses of cells. We did this using a strategy in which DNA constructs containing cyclooxygenase (COX)-2 and inducible nitric oxide synthase (iNOS) promoters were transfected into HEK293 cells. G-$Rp_1$ strongly inhibited the promoter activities of COX-2 and iNOS; it also inhibited lipopolysaccharide induced upregulation of COX-2 and iNOS mRNA levels in RAW264.7 cells. In HEK293 cells G-$Rp_1$ did not suppress TANK binding kinase 1-, Toll-interleukin-1 receptor-domain-containing adapter-inducing interferon-${\beta}$ (TRIF)-, TRIF-related adaptor molecule (TRAM)-, or activation of interferon regulatory factor (IRF)-3 and nuclear factor (NF)-${\kappa}$B by the myeloid differentiation primary response gene (MyD88)-induced. However, G-$Rp_1$ strongly suppressed NF-${\kappa}$B activation induced by I${\kappa}$B kinase (IKK)${\beta}$ in HEK293 cells. Consistent with these results, G-$Rp_1$ substantially inhibited IKK${\beta}$-induced phosphorylation of $I{\kappa}B{\alpha}$ and p65. These results suggest that G-$Rp_1$ is a novel anti-inflammatory ginsenoside analog that can be used to treat IKK${\beta}$/NF-${\kappa}$B-mediated inflammatory diseases.

A549 폐암세포와 Sarcoma-180 복강암에 대한 인삼(人蔘) 증류약침(蒸溜藥鍼)의 영향에 관(關)한 실험적(實驗的) 연구(硏究) (An Experimental Study on Effects of Distilled White-ginseng Herbal Acupuncture on A549 human ephithelial lung cancer cell in vitro and implanted Sarcoma-180 in vivo)

  • 위종성;권기록;박희수
    • 대한약침학회지
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    • 제7권3호
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    • pp.59-71
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    • 2004
  • Objectives : In order to investigate effects and immune improvement of distilled white-ginseng herbal extract, expression of Cox-1, Cox-2, and mRNA of Bcl-2 and Bax were analyzed in A549 cell in vivo. Survival time and expression of cytokine mRNA were measured for the mice with Sarcoma-180 induced abdominal cancer. Methods : Balb/c mouse was treated with distilled white-ginseng Herbal Acupuncture at Wisu($Bl_{21}$) and Chung-wan($CV_{12}$) to investigate anti-cancer effects and immune response. Results : 1. For expression of mRNA of Cox-1 using RT-PCR. the control group and the experiment groups show significant increase. For Cox-2, both experiment groups and the normal group showed significant decrease. For Bcl-2, experiment groups showed slight decrease compared to the control group. For Bax, no significant changes were shown between the control group and experiment groups 2. For survival time, all of experiment groups didn't show significant differences. 3. IL-2 productivity using Flow cytometry, experiment group I didn't show any significance, For II-4, all of experiment groups showed slight decrease compared to the control group. 4. For IL-2 productivity using ELISA, experiment group I showed slight decrease compared to the control group, experiment group II didn't show any significance. 5. For expression of cytokine mRNA using RT-PCR, significant increase of IL-2 and IL-4 were witnessed in experiment group I compared to the control group. Significant decrease of IL-10 was shonwn in all of experiment groups compared to the control group. Conclusion : According to the results, we can expect that distilled white-ginseng Herbal Acupuncture may be further effects in anti-cancer and immune improvement if increasing concentration.

RAW 264.7 큰포식세포에서 상백피 및 상지 에탄올 추출물의 항염증 활성 비교 (Anti-inflammatory effects of ethanolic mulberry extract on the murine macrophage cell line, RAW 264.7)

  • 김윤영;양윤경;김동민;김지연
    • 한국식품과학회지
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    • 제49권3호
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    • pp.343-348
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    • 2017
  • 상백피 및 상지 에탄올 추출물의 항염증 효과를 확인하기 위하여 RAW 264.7 세포를 사용하여 시험하였다. 상백피, 상지 추출물의 활성산소종, 산화질소(II), 프로스타글란딘 $E_2$, 인터류킨-6, 종양괴사인자-${\alpha}$ 등의 생성능과 COX-2, iNOS mRNA 발현을 확인하였다. 산화질소(II) 생성량은 두 추출물 모두 유의하게 비슷한 정도로 감소시켰으나, 활성산소종 생성에서는 상백피 추출물이 상지 추출물 보다 억제 효과가 높게 나타났다. 프로스타글란딘 $E_2$와 인터류킨-6 생성에서는 상지 추출물의 억제 효과가 강하게 나타났으며, COX-2와 iNOS mRNA 발현량 또한 상지 추출물의 상백피에 비해 유의하게 감소시킴을 확인하였다. 본 연구에서 확인한 결과로 상백피, 상지 추출물 모두 염증 매개인자 발현 억제를 통해 항염증 효과를 가짐을 알 수 있었으며, 상지 추출물이 상백피 추출물 보다 염증 완화 효과가 강한 것으로 나타났다. 향후에는 상백피 및 상지 추출물의 주요 활성 성분들의 차이와, 염증완화 메커니즘을 통한 관련 질환에 효과가 있는지 정확한 작용메커니즘 확인 등의 분석실험이 필요할 것으로 생각된다.