• 제목/요약/키워드: TNF-alpha

검색결과 3,258건 처리시간 0.032초

The Mycobacterium avium subsp. Paratuberculosis protein MAP1305 modulates dendritic cell-mediated T cell proliferation through Toll-like receptor-4

  • Lee, Su Jung;Noh, Kyung Tae;Kang, Tae Heung;Han, Hee Dong;Shin, Sung Jae;Soh, Byoung Yul;Park, Jung Hee;Shin, Yong Kyoo;Kim, Han Wool;Yun, Cheol-Heui;Park, Won Sun;Jung, In Duk;Park, Yeong-Min
    • BMB Reports
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    • 제47권2호
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    • pp.115-120
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    • 2014
  • In this study, we show that Mycobacterium avium subsp. paratuberculosis MAP1305 induces the maturation of bone marrow-derived dendritic cells (BMDCs), a representative antigen presenting cell (APC). MAP1305 protein induces DC maturation and the production of pro-inflammatory cytokines (Interleukin (IL)-6), tumor necrosis factor (TNF)-${\alpha}$, and IL-$1{\beta}$) through Toll like receptor-4 (TLR-4) signaling by directly binding with TLR4. MAP1305 activates the phosphorylation of MAPKs, such as ERK, p38MAPK, and JNK, which is essential for DC maturation. Furthermore, MAP1305-treated DCs transform naive T cells to polarized $CD4^+$ and $CD8^+$ T cells, thus indicating a key role for this protein in the Th1 polarization of the resulting immune response. Taken together, M. avium subsp. paratuberculosis MAP1305 is important for the regulation of innate immune response through DC-mediated proliferation of $CD4^+$ and $CD8^+$ T cells.

발효 공정을 통한 아로니아 추출물의 항염증 효능 증진 (Enhancement of Anti-inflammation Effect by Fermentation Process in Aronia melanocarpa (Michx.) Elliott Extract)

  • 김남영;이영덕;조석철;신윤철;이현용
    • 한국약용작물학회지
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    • 제22권6호
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    • pp.475-482
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    • 2014
  • This study was indicated to enhance the anti-inflammation activities by the fermentation of the fruits of Aronia melanocarpa (Michx.) Elliott. The extracts by 70% ethanol (EE) showed better biological activities than those by hot water (WE) from campared result of the effect of extraction solvents. Then, the extract from 70% ethanol extraction was further fermented by lactic acid, denoted as FEE. For antioxidant activities, the FEE had showed the highest value as 0.832 of reducing powder, in comparison with those of EE and WE. Cytotoxicity of the water extraction (WE) was measured for 12.06% in addition of $1.0mg/m{\ell}$ of FEE. For anti-inflammation activities, NO production from the macrophage, RAW 264.7 was observed as $7.24{\mu}M$ and $8.52{\mu}M$ from FEE and EE, respectively. Prostaglandin $E_2$ ($PGE_2$) production from human fibroblast cell, CCD-986sk, was also estimated for $152pg/m{\ell}$ in addition of $1.0mg/m{\ell}$ of the FEE. The lowest production of both IL-6 and TNF-${\alpha}$ were $3.5pg/m{\ell}$ and $865.5pg/m{\ell}$, respectively in addition of $1.0mg/m{\ell}$ of the FEE, whereas $74.5pg/m{\ell}$ and $982.4pg/m{\ell}$ in treated with same concenrations of the EE. It was also found that the FEE was higher amounts than other extracts through HPLC analysis of the anthocyanins. These results strongly indicate that fermentation process of the lactic acid could enhance anti-inflammation activities of extracts by increasing the amounts of the anthocyanins, especially cyanidin-galactoside. Our results suggest that the application of the fermentation process for other medicinal herbs can be improved their biological activities.

NF-κB 억제를 통한 대회향(大茴香)의 항염증효능 (Anti-inflammatory Effects of Illicium verum Hook. f. via Suppression of NFκB Pathway)

  • 금수연;박상미;제갈경환;황보민;조일제;박정아;김상찬;지선영
    • 대한한의학방제학회지
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    • 제24권4호
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    • pp.243-257
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    • 2016
  • Objectives : Illicium verum Hook. f. has been known to possess antimicrobial, antioxidant, antifungal, anti-inflammatory, insecticidal, analgesic, sedative, convulsive activities, it has been rarely conducted to evaluate the immuno-biological activity. The present study was examined to evaluate the anti-inflammatory effects of the Illicium verum Hook. f. water extracts (IVE) in vivo and in vitro. Methods : Cell viability was measured by MTT assay. The relative levels of NO were measured with Griess reagent. iNOS, COX-2, $NF-{\kappa}B$ and target proteins were detected by immunoblot analysis, and levels of cytokines were analyzed by ELISA kit. Anti-edema effect was determined in the carrageenan (CA)-induced paw edema model in rats. Results : All dosages of IVE used in MTT assay had no significant cytotoxicity. The increases of NO production and iNOS expression were detected in LPS-treated cells compared with control. However, these increases were attenuated by treatment with IVE. Also, IVE reduced the elevated production of $TNF-{\alpha}$, $IL-1{\beta}$ and IL-6 by LPS. IVE inhibited the $p-I{\kappa}B$ and translocation of $NF-{\kappa}B$ to nuclear. Furthermore, IVE significantly inhibited the increases of hind paw swelling, skin thicknesses and inflammatory cell infiltrations induced by CA injection. Therefore, IVE will be favorably inhibited the acute edematous inflammations. Conclusion : These results provide evidences that anti-inflammatory effect of IVE is partly due to the reduction of some inflammatory mediators by suppression of $NF-{\kappa}B$ pathway.

치은섬유아세포와 치주인대섬유아세포의 interleukin-6 분비 및 세포성장에 미치는 단핵구세포주와 섬유아세포의 세포간 접촉작용 (Effects of Direct Cell Contact Between Monocytes and Fibroblasts on the Interleukin-6 Production and Cell Proliferation of Human Gingival and Peri - odontal Ligament Fibroblasts)

  • 김수아;이호;김형섭;오귀옥
    • Journal of Periodontal and Implant Science
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    • 제29권4호
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    • pp.803-823
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    • 1999
  • In order to reveal immunopathogenesis of periodontal tissue destruction, it is important to clarify the molecular mechanism of trafficking and retention of activated leukocytes, including monocytes/macrophages. Gingival fibroblasts may be involved in the regulation of inflammatory cell accumulation in the extravascular periodontal connective tissues via cytokine production and surface expression of adhesion molecules. In this study, it was investigated the molecular basis for the adhesive interactions between monocytes and fibroblasts such as peri-odontal ligament fibroblast(PDLF), human gingival fibroblast(HGF), and human dermal fibroblast(HDF). First, it was examined the evidence whether monocyte-fibroblast cell contact may cause signal transduction in fibroblasts. Being directly in contact with fixed human monocyte cell line THP-1, or U937, upregulation of IL-6 production, $TNF-{\alpha}$ mRNA expression and increased cell proliferation could be seen for fibroblasts. IL-6 production induced by monocyte- fibroblast coculture were further increased when fibroblasts had been pretreated with $IFN-{\gamma}$ or $IL-1{\beta}$ , and monocytes with LPS. Next, it was examined the expression of ICAM-1 which has been known to be involved in accumulation and activation of leukocytes in inflammatory diseases such as periodontitis. ICAM-1 was upregulated up to 10-fold on PDLF, HGF, and HDF by exposure to $IFN-{\gamma}$ or $IL-1{\beta}$. Furthermore, anti-ICAM-1 monoclonal antibody clearly blocked cocultureinduced IL-6 production by fibroblasts, suggesting that $ICAM-1/{\beta}_2$integrin pathway is involved in periodontal fibroblastmonocyte interaction. Overall, these findings provide evidence that periodontal fibroblasts could be involved in the accumulation and retention of monocytes/macrophages in periodontal inflammatory lesion at least in part by ICAM-1 expression. In addition, periodontal fibroblast-monocyte interaction could cause activation signals in fibroblasts intracellularly which result in cytokine production and cell proliferation. Thus, periodontal fibroblasts are speculated to play an important role in immunoregulation and tissue destruction in chronic periodontal diseases by interaction with monocytes/macrophages.

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사백산(瀉白散)과 사백산가사삼(瀉白散加沙蔘)이 인간 기관지상피세포의 IL-6, IL-8 및 GM-CSF 발현에 미치는 영향 (The Inhibitory Effects of Sabaek-san and Sabaeksan plus Sasam on the IL-6, IL-8 and GM-CSF mRNA Levels in Human Epithelial Cells)

  • 정희재;정승기;이형구;정광진
    • 대한한방내과학회지
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    • 제23권1호
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    • pp.15-23
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    • 2002
  • Objective : We aimed to identify the dose-dependent inhibitory effects of Sabaek-san(瀉白散) and Sabaeksan plus Sasam(Adenophorae Radix) 瀉白散加沙蔘) on the mRNA expressions of Interleukin(IL)-6, IL-8 and granulocyte macrophage colony stimulating factor(GM-CSF) involved in the asthma model. Materials and Methods : Through this study, BEAS-2B cell lines, human epithelial cells were used. These cells were stimulated by tumor necrosis factor(TNF)-${\alpha}$, IL-1${\beta}$ and histamine for artificial inflammatory expression. ${\beta}$-action messenger RNA(mRNA) was used for standards. After each 24hours of Sabaeksan and Sabaeksan plus Sasam treatment, total cellular RNAs were collected by treating RNA zol directly on living cells, Then the transcriptional activities of IL-6, 8 and GM-CSF were measured by RT-PCR with electrophoresis, Results : The mRNA expressions of IL-6 are significantly inhibited compared to those of controlled group at 40 and 100ug/ml of Sabaeksan extract and $100{\mu}g/ml$ of Sabaeksan plus Sasam extract (p<0.05). The mRNA expressions of IL-8 are significantly inhibited compared to that of controlled group at 2.40 and 100 ug/ml of Sabaeksan extract and $40.100{\mu}g/ml$ of Sabaeksan plus Sasam extract(p<0.05) THe mRNA expressions of GM-CSF are significantly inhibited compared to those of the controlled group at $100{\mu}g/ml$ of Sabaeksan extract adn $40.100{\mu}g/ml$ of Sabaeksan plus Sasam extract.(p<0.05) Conclusions : This study shows that Sabaeksan and Sabaeksan plus Sasam have dose-dependent inhibitory effects on the mRNA expressions of IL-6, IL-8 and GM-CSF in human epithelial cells. Therefore, these types of herb medicine may inhibit the inflammatory process of asthma. Advanced studies are required to investigate the mechanisms of inhibition by herb medicine in the asthma model.

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감잎의 광노화 피부 개선에 미치는 효과(2) (Effects of Persimmon leaf on the Photoaging Skin Improvement(2))

  • 이창현;김남석;최동성;오미진;마상용;김명순;유승정;권진;신현종;오찬호
    • 동의생리병리학회지
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    • 제28권1호
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    • pp.35-44
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    • 2014
  • This study was performed to investigate the anti-photoaging effects of Persimmon leaf tea(PLT) in hairless mice(SKH-1) exposed to UVB radiation. The animals were divided into non-treated group (normal, N) and UV-radiated groups. UV-radiated groups were divided into only UV-radiated group(control, C) and UV-radiated and PLT treated experimental groups[first extraction treated group(PLT-I), second extraction treated groupe(PLT-II), and third extraction treated group(PLT-III)]. Three PLT treated experimental groups of mice were treated with both oral administration(300mg/Kg B.W./day) and topical application (100 ul of 2% conc./mouse/day) for 4 weeks. Anti-photoaging effects of Persimmon leaf were evaluated by MTT assay, anti oxidative reaction, MMP immunohistochemistry, gelatin zymography assay and RT-PCR observations. Treatment with Persimmon leaf tea(PLT)-I, and -III groups decreased immunohistochemical density of matrix metalloproteinases(MMP)-3 and -9 related to degradation of extracellular matrix in skin. Especially, immunohistochemical density of MMP-2 decreased in PLT-I, -II and -III groups in skin. On the effects of antioxidant function on the treatment with Persimmon leaf tea(PLT), treatment of HaCaT cells with extracts of PLT-I and PLT-II had also significantly reduced intracellular ROS produced by UVB irradiation in a dose dependent manner(PLT-I, p<0.05, p<0.01, p<0.001; PLT-II, p<0.01, p<0.001). Gelatin zymography assay revealed that PLT-II and PLT-III (200 ug/ml) had inhibitory effect on MMP-9 expression in UVB-radiated HaCaT cells. Western blot analysis revealed that PLT-1, -II and -III groups down-regulates the expression of inflammatory associated genes(IL-$1{\beta}$) and PLT-1 and -II groups down-regulates the expression of TNF-${\alpha}$ in a dose dependent manner. Our study suggests that Persimmon leaf tea(PLT) extracts participates in inhibitory effects on the morphological and molecular experiments related to photoaging skin on UVB irradiated hairless mice.

청기산(淸肌散)과 삼황세제가미방(三黃洗劑加味方) 병용이 NC/Nga mice의 아토피 피부염에 미치는 영향 (Effects of Chunggi-san Administration along with Samhwangseze-gamibang on NC/Nga Atopic Mice)

  • 손대범;서은성;윤채성;김남권;황충연
    • 동의생리병리학회지
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    • 제22권5호
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    • pp.1168-1177
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    • 2008
  • Atopic dermatitis(AD) is a chronic inflammatory skin disease. AD has increased gradually, many people are tortured with AD. Chunggi-san(CG) and Samhwangseze-gamibang(SG) has been used for many kinds of skin disease in the Oriental medicine. But reports about the effect of CG and SG are insufficient. So, author investigated the effect of CG and SG on NC/Nga atopic mice. Major findings are summarized as follows: The clinical skin severity scores of experimental group in 13 and 16 week were decreased by 42% and 50% compared to the control group. Serum IgE, IL-4, IL-5, IL-6, IgM, IgGI levels of experimental group were significantly decreased compared to the control group. Serum $IFN-\nu$ was significantly increased in the experimental group compared to the control group. mRNA expression levels of IL-4, IL-5, and CCR3 in the skin tissues of experimental group were significantly decreased, and expression level of IL-6 in the skin tissues of experimental group was significantly decreased compared to the control group. $IFN-\nu$ mRNA expression levels was increased compared to the control group. According to biopsy reports of the ear and skin tissues showed that the tissue damage, experimental group were highly reduced compared to the control group. Judging from that $IL-1{\beta}$, $TNF-{\alpha}$, IL-6 express of gene, the effects of inflammatory cytokines revelation were significantly decreased compared to the control group. Depending on the density of CG, inflammatory RAW 264.7 in the serum of CG were significantly inhibited compared to the control serum that leaded a COX-2 activity model.

두충 열수추출물 급여에 의한 갱년기 유도 모델 흰쥐의 지질, 당질 및 항산화 대사 개선에 미치는 영향 (Water extracts of Eucommia ulmoides improve lipid, glucose, and antioxidant metabolism in ovariectomized rats)

  • 이상철;정수임;강미영
    • 한국식품과학회지
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    • 제48권6호
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    • pp.604-609
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    • 2016
  • 본 연구는 폐경 이후 여성에 대한 두충 추출물의 효과를 확인하고자, in vitro 항산화 활성 분석 및 암컷 흰쥐의 난소를 절제한 후 폐경을 유도하여, 두충 열수추출물 보충 급여에 따른 지질, 당질대사 및 항산화 대사 관련 지표를 분석하였다. In vitro 항산화 활성분석 결과 환원력은 0.79(O.D. at 700 nm)로 대조군인 BHA (0.51, O.D. at 700 nm) 보다 유의적으로 높게 나타났다. 동물실험 분석결과로는 난소절제군에 비해서 난소절제 후 두충추출물 급여군이 체중 감소경향을 보였으며, 혈장 지질농도 및 동맥경화지수도 유의적으로 낮은 것으로 나타났다. 간조직의 지방생합성 효소활성도에는 OVX-EU군에서 활성이 억제되었으며, 지방조직에서는 유의적차이가 없었다. 지방산화 효소 활성은 지방조직에서 OVX-EU군의 활성이 높은 것으로 나타났다. 간조직의 당질대사 관련 효소 활성은 난소절제군들간의 유의적인 차이가 없었으며, 혈장 adipokine 중 OVX군은 렙틴과 아디포넥틴 수준이 유의적으로 낮게 나타났으며, $TNF-{\alpha}$는 높게 측정되었다. 항산화 효소 활성은 OVX-EU군이 간조직에서 GR과 PON, 신장조직에서 SOD, CAT, GR 활성이 OVX군보다 높게 나타났다. 본 실험의 결과들은 폐경이후 에스트로겐 결핍으로 인해 발생되는 비만관련 대사장애의 개선 및 예방소재로서 두충의 기능성 소재 개발도 가능 할 것으로 기대된다.

포도가지 추출물의 산화방지, 항염증 및 항가려움 효과 (Antioxidant, anti-inflammatory, and anti-pruritic effects of grape branch extract)

  • 조병옥;윤홍화;체 데니스 창;김상준;유철;장선일
    • 한국식품과학회지
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    • 제48권6호
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    • pp.590-596
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    • 2016
  • 본 연구에서는 우리나라에서 가장 많이 재배되고 있는 캠벨어얼리 포도 품종에서 포도가지를 대상으로 산화방지, 항염증 및 항가려움증 효과를 검증하고 활성물질을 나타내는 지표물질을 추적 조사하였다. 그 결과 포도가지 추출물의 총 폴리페놀과 총 플라보노이드 함량은 각각 $201.42{\pm}4.16$$11.85{\pm}0.44mg\;GAE/g$으로 조사되었다. 또한 캠벨어얼리 포도가지 추출물의 ABTS와 DPPH 라디칼 소거 활성은 각각 $45.60{\pm}0.09$ ($IC_{50}$)과 $299.13{\pm}0.22$ ($IC_{50}$)으로 나타나 산화방지 활성이 우수하였다. 게다가 캠벨어얼리 포도가지 추출물은 지방질다당류로 활성화된 RAW 264.7 세포에서 전염증성 매개물인 산화질소와 프로스타글란딘 $E_2$를 iNOS와 COX-2 분자 발현 억제를 통하여 억제하였고, 전염증성 사이토카인인 인터류킨-1베타와 인터류킨-6를 농도 의존적으로 억제하는 효능이 있었다. 더욱이 phorbol 12-myristate 13-acetate (PMA)와 calcium ionophore A23187로 활성화된 인간 유래 비만세포인 HMC-1 세포에서 종양괴사인자-알파와 인터류킨-6를 농도 의존적으로 억제하는 효능이 있었다. 마지막으로 Compound 48/80으로 유도되는 마우스 가려움증을 캠벨어얼리 포도가지 추출물은 효과적으로 억제하였다. 이러한 캠벨어얼리 추출물에서 활성을 나타내는 물질을 추적한 결과 레스베라트롤의 함량이 높게 검출되었다. 그러므로 본 연구의 결과를 종합해 볼 때 캠벨어얼리 포도가지 추출물은 아토피 질환에서 나타나는 염증과 가려움증을 효과적으로 제어할 수 있는 효과적인 소재임을 제시하였다.

증숙 횟수에 따른 천마 추출물의 급성 위염 개선효과 (Protective effects of Gastrodia elata extract by steaming time on acute gastritis)

  • 이아름;권오준;노정숙;노성수
    • 한국식품과학회지
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    • 제48권6호
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    • pp.597-603
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    • 2016
  • 본 연구는 증숙 횟수에 따른 천마 추출물의 경구 투여가 산화방지 효과를 통한 위 점막 손상 억제에 미치는 효과를 평가하는 실험이다. 증숙 횟수를 달리한 천마 추출물을 준비하여 DPPH, ABTS 라디칼 소거능, total phenol, flavonoid, gastrodin, gastrodigenin 성분 분석 결과, 1회 증숙 천마와 9회 증숙 천마 추출물간의 급성 위염 개선 효능 평가가 가능할 것으로 판단되었다. HCl/ethanol로 유발된 급성 위염 동물 모델에 GE1과 GE9 (100 mg/kg body weight)과 sucralfate (10 mg/kg body weight)를 HCl/ethanol 처리 전 경구 투여하였다. 그리고 이를 정상군과 대조군과 비교 분석하였다. 급성 위염 개선 효능 실험에서 증숙 천마 추출물의 섭취는 HCl/ethanol로 유발된 위 점막 손상 마우스에서 위 조직의 육안적 손상을 감소시켰다. 9회 증숙 천마 추출물의 섭취는 위 점막 손상마우스에서 혈청의 ROS와 조직의 $ONOO^-$를 감소시켰고, 위 조직에서 염증성 매개인자인 $TNF-{\alpha}$ 또한 감소시켰다. 결론적으로 9회 증숙한 천마의 경구투여는 1회 증숙한 천마에 비하여 효과적으로 위 점막 손상을 억제하였다. 따라서 9회 증숙 천마 추출물의 투여가 급성 위염 유발 마우스 모델에서 위점막 손상 억제에 효과가 있다고 사료된다.