• 제목/요약/키워드: IL- 6

검색결과 13,953건 처리시간 0.044초

소아 개심술 후 변형 초여과법과 복막투석의 염증 매개체 (inflammatory mediator)의 감소에 대한 효과 (Efficacies of the Modified Ultrafiltration and Peritoneal Dialysis in Removing Inflammatory Mediators After Pediatric Cardiac Surgery)

  • 성시찬;정민호
    • Journal of Chest Surgery
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    • 제34권10호
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    • pp.745-753
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    • 2001
  • 배경: 체외순환은 보체의 활성화와 cytokine의 유리에 의한 급성 전신성 염증반응을 일으킨다. 이 반응은 소아들에 있어 모세혈관 누출 증후군이나 여러 장기의 기능장애를 일으킬 수 있다. 유해한 cytokine들이나 보체anaphylatoxin들을 제거함으로서 이들에 의한 염증반응을 완화시킬 수 있을 것이다. 개심술 후 변형 초여과법과 복막투석이 소아 개심술 후 혈중 염증 매개체를 감소시킬 수 있는가를 알아보기 위해 이 연구를 시행하였다. 대상 및 방법: 모두 30떵의 심실중격결손증 환아(생후 1.1∼12.6개월)들을 대상으로 하여 이들을 10명씩 세 군으로 나누어 연구하였다. 10명은 변형 초여과법을 시행한 군(U군), 다른 10명은 체중이 작은 소아(5kg 이하)들로서 술 후 복막투석을 한 군(P군), 나머지 10명은 변형 초여과법이나 복막투석을 시행하지 않은 대조군(C군)으고 나누었다. 체외순환 전후, 복막투석 후 혈청 샘플을 채취하였으며 변형 초여과의 여과액과 복막투석 배액을 채취하여 C3a와 인터루킨-6(IL-6)를 각각 radioimmunoassay법과 enzyme-linked immunosorbent assay법으로 측정하였다. 결과: 각 군간에 체외순환 시간, 대동맥차단 시간, 저체온의 정도 등은 차이가 없었다. 복막투석 배액에는 상당한 농노의 C3a와 IL-6를 포함하고 있었으나 혈청 C3a, IL-6 농도의 저하는 없었다. 변형 초여과의 여과액에는 낮은 농도의 C3a가 검출되었고 혈청 C3a 농도에도 영향을 주지 못하였으며 IL-67는 검출되지 않았다. 결론: 복막투석 배액에는 높은 농도의 C3a와 IL-6를 포함하고 있었지만 이들의 혈청 농도를 감소시키는데는 효과가 없었으며 변형 초여과법 역시 혈청 C3a와 IL-6의 감소 효과는 없었다.

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근감소 및 염증 예방을 위한 운동과 인터루킨(IL-interleukin)의 역할 (The role of myokine(interleukin) and exercise for the prevention of scarcopenia and anti-inflammation)

  • 변용현;박우영
    • 한국응용과학기술학회지
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    • 제35권2호
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    • pp.509-518
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    • 2018
  • 이 연구의 목적은 신체활동이 마이오카인 발현에 미치는 영향을 보고자 문헌고찰을 하였다. 신체적인 활동은 제2형 당뇨, 심혈관질환, 대장암, 치매 및 우울증과 같은 질환을 예방하는 역할을 하고 있다. 그리고 마이오카인(myokine)은 운동 훈련에 의해 분비되는 호르몬으로 뇌성장이나 알츠하이머 같은 질환 예방에 도움을 준다. 운동수행과정에서 수축하는 근육으로부터 분비되는 항염증 마이오카인의 생성과 대사 조절에 필요한 분비 활성화가 건강증진에 중요한 요인으로 보고 있다. 인체 골격근에서 분비되는 마이오카인 가운데 IL-4, IL-6, IL-7, IL-8, IL-15 등은 근육비대(hypertrophy)와 세포(myogenesis) 및 혈관생성(angiogenesis) 등의 조절에 관여한다. IL-6는 AMPK 활성화로 인한 대사중 지방 산화를 촉진시키는 작용을 하고, IL-1Ra, IL-10 과 sTNF-R 는 염증성 싸이토카인 $TNF-{\alpha}$의 분비를 억제한다. IL-15는 저항 운동시 근수축을 통한 발현량이 증가하어 근육 성장의 중요 합성요인으로 작용한다. 한편 IL-7 및 IL-8도 신호 전달 수용체 C-X-C를 통해 혈관신생을 촉진시킨다.

Bamboo Culm Extract Downregulated Activation of NKT- and B- cells and Production of IL-6 in Pristane-Induced Lupus Mice

  • Chae, Byeong-Suk;Park, Byung-Hyun
    • Natural Product Sciences
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    • 제15권4호
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    • pp.222-228
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    • 2009
  • Lupus is characterized by immunoregulatory abnormalities between T- and B-cells leading to autoantibody production and multiorgan injuries. We investigated whether bamboo culm extract (BC) ameliorates aberrant activation of T cells and B cells and attenuate production of IL-6 in pristane-induced lupus mice. Lupus was induced by i.p. a single injection of 0.5 ml of pristane in female BALB/c mice, which, later about 4 months, were used as a lupus model. The pristane-induced lupus mice and healthy mice were injected i.p. with BC 5 ${\mu}l$/kg or PBS once a day for 3 weeks. These results demonstrated that BC significantly decreased levels of serum and BAL IL-6 and production of IL-6 by macrophages with/without LPS, and downregulated expression of NKT cell and CD86+ CD45R/B220+, but not CD80+CD45R/B220+ and CD69+CD4+ in the splenocytes in pristaneinduced lupus mice. Moreover, BC greatly increased Con A-stimulated production of IL-6, IL-10 and IFN-${\gamma}$ by splenocytes obtained from pristane-induced lupus mice. Therefore, our findings suggest that BC may ameliorate lupus pathogenesis in pristane-induced lupus mice via downregulation of aberrant activation of NKT cells and B cells and inhibition of production of IL-6.

LPS로 유도한 대식세포에서 MAP kinase의 억제에 의한 구보음(九寶飮)의 NO, TNF-$\alpha$, IL-6, IL-12 생성 억제 효과 (Effects of GuBoEum Inhibiting NO, TNF-$\alpha$, IL-6 and IL-12 Production by Blocking MAP Kinase Activation in LPS-induced Murine Macrophages)

  • 이병순;신조영;이시형
    • 동의생리병리학회지
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    • 제23권1호
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    • pp.104-112
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    • 2009
  • The purpose of this study was to investigate the anti-inflammatory effects of extract from GuBoEum(GBE) on the peritoneal macrophage. To evaluate anti-inflammatory effects of GBE. I measured cytokines (interleukin-6; IL-6, interleukin-12; IL-12, tumor necrosis factor-$\alpha$; TNF-$\alpha$) and nitric oxide (NO) production in lipopolysacchride (LPS)-induced macrophages. Furthermore, I examined molecular mechanism using western blot and also LPS-induced endotoxin shock. Extract from GBE does not have any cytotoxic effect in the peritoneal macrophages. Extract from GBE reduced LPS-induced IL-6, TNF-$\alpha$, IL-12 and NO production in peritoneal macrophages. GBE inhibited the activation of extracelluar signal-regulated kinase (ERK), C-Jun $NH_2$-terminal kinase (JNK) but not of p38, degradation of $I{\kappa}B-{\alpha}$ in the LPS-stimulated peritoneal macrophages. GBE inhibited the production of TNF-$\alpha$, IL-6 and IL-12 in serum after LPS injection. These results suggest that GBE may inhibit the production of TNF-$\alpha$, IL-6, and IL-12 through inhibition of ERK and JNK activation, and that GBE may be beneficial oriental medicine for inflammatory diseases.

Anti-inflammatory effect of Equisetum hyemale via suppression of nuclear factor-κB activation in human mast cells

  • Jeon, So-Ra;Na, Ho-Jeong;Jeon, Hoon
    • Advances in Traditional Medicine
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    • 제9권2호
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    • pp.149-156
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    • 2009
  • Equisetum hyemale Linne. (EH) (Equisetaceae) has been used for the treatment of eye and skin disease, chronic eczema, pneumoconiosis and asthma in Korea and China. Human leukemic mast cells are widely distributed in the connective tissues of mammals and other vertebrates. Phorbol 12-myristrate 13-acetate (PMA) and calcium ionophore A23187 stimulated Human leukaemic mast cell line-1 (HMC-1) can produce a variety of inflammatory mediators and several pro-inflammatory and chemotactic cytokines such as TNF-$\alpha$, IL-6 and IL-8. Since TNF-$\alpha$, IL-6 and IL-8 are major factors during the inflammatory process, we studied the effects of EH on TNF-$\alpha$, IL-6 and IL-8 release in HMC-1 stimulated with PMA and A23187. The result of this study indicate that EH inhibits TNF-$\alpha$, IL-6 and IL-8 in activated HMC-1 cells via $I{\kappa}B$/Nuclear factor-${\kappa}B$ pathway. Therefore, EH might contribute significantly to the prevention or treatment of mast-cell mediated inflammatory diseases and EH has potential use in the therapy of chronic allergic inflammation.

Trypanosoma cruzi Dysregulates piRNAs Computationally Predicted to Target IL-6 Signaling Molecules During Early Infection of Primary Human Cardiac Fibroblasts

  • Ayorinde Cooley;Kayla J. Rayford;Ashutosh Arun;Fernando Villalta;Maria F. Lima;Siddharth Pratap;Pius N. Nde
    • IMMUNE NETWORK
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    • 제22권6호
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    • pp.51.1-51.20
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    • 2022
  • Trypanosoma cruzi, the etiological agent of Chagas disease, is an intracellular protozoan parasite, which is now present in most industrialized countries. About 40% of T. cruzi infected individuals will develop severe, incurable cardiovascular, gastrointestinal, or neurological disorders. The molecular mechanisms by which T. cruzi induces cardiopathogenesis remain to be determined. Previous studies showed that increased IL-6 expression in T. cruzi patients was associated with disease severity. IL-6 signaling was suggested to induce pro-inflammatory and pro-fibrotic responses, however, the role of this pathway during early infection remains to be elucidated. We reported that T. cruzi can dysregulate the expression of host PIWI-interacting RNAs (piRNAs) during early infection. Here, we aim to evaluate the dysregulation of IL-6 signaling and the piRNAs computationally predicted to target IL-6 molecules during early T. cruzi infection of primary human cardiac fibroblasts (PHCF). Using in silico analysis, we predict that piR_004506, piR_001356, and piR_017716 target IL6 and SOCS3 genes, respectively. We validated the piRNAs and target gene expression in T. cruzi challenged PHCF. Secreted IL-6, soluble gp-130, and sIL-6R in condition media were measured using a cytokine array and western blot analysis was used to measure pathway activation. We created a network of piRNAs, target genes, and genes within one degree of biological interaction. Our analysis revealed an inverse relationship between piRNA expression and the target transcripts during early infection, denoting the IL-6 pathway targeting piRNAs can be developed as potential therapeutics to mitigate T. cruzi cardiomyopathies.

비유기간에 따라 murine 림프조직에서 생산되는 lymphokine의 양상에 관한 연구 (Murine lymphokines production in lymphoid organs during the various stages of lactation)

  • 류시윤
    • 대한수의학회지
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    • 제34권1호
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    • pp.19-24
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    • 1994
  • 비유중기, 건유초기 및 임신말기의 C3H/HeN 마우스의 비장, 장간막림프절, 말초림프절(액와, 상완 및 샅림프절)유래 림프구에서 생산되는 lymphokine의 양을 비교하였다. 비장에서의 IL-2 생산양은 임신말기와 비유중기에 낮았지만, IL-4, IL-6와 $IFN_{\gamma}$의 생산양은 임신말기와 건유초기에 높았다. 말초림프절에서의 IL-4, IL-6 및 $IFN_{\gamma}$ 생산양은 임신말기와 건유초기에 높았지만, IL-2의 생산양은 임신말기, 비유중기 및 건유초기에 각각 감소하였다. 장간막림프절에서의 IL-4 생산양은 임신말기와 비유중기에 각각 증가하였으나, IL-2의 생산양은 임신말기에 감소하였다. 이와같이 전반적으로 건유초기와 임신말기에 IL-2의 생산양은 낮지만, IL-4, IL-6와 $IFN_{\gamma}$의 생산양이 높은 결과는 이 시기에 유방염의 발생비율이 높은 것과 연관성이 있는 것으로 추정된다.

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행인(杏仁)과 길경(桔梗)이 Asthma model 내(內)의 Cytokine IL-4, IL-5, IL-6에 미치는 영향(影響) (The Effects of Armeniacae Arnarum Semen and Platycodi Radix on IL-4, IL-5, IL-6 in Asthma Model)

  • 정희재;정승기;이형구;정욱
    • 대한한방내과학회지
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    • 제21권1호
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    • pp.31-38
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    • 2000
  • Background : Nowadays asthma is considered to be the inflammatory disease characterized by airway hyperresponsiveness and pulmonary eosinophilia, and mediated by Th lymphocytes expressing the Th2 cytokine pattern. In many recent studies, molecular biological methods have been used to investigate the role of cytokines in pathogenesis and new therapeutic targets of asthma. Objective : We aimed to identify the effect of Armeniacae Arnarum Semen and Platycodi Radix on the transcriptional activities of cytokine IL-4, IL-5 and IL-6 involved in asthma model. Materials and Methods : RBL-2H3 cell lines were used. Cells were stimulated with calcium inophore for maximal gene expression. After 24 hours of Armeniacae Arnarum Semen and Platycodi Radix-treatment, total cellular RNAs were collected using Trizol solution method. Then transcriptional activities of IL-4, IL-S and IL-6 were measured by RT-PCR with electrophoresis. Results : In IL-4 study, Armeniacae Arnarum Semen treated group showed 48.4% of transcriptional activities compared to the control group and Platycodi Radix treated group showed 45.4% of transcriptional activities compared to the control group. In IL-5 study, Armeniacae Arnarum Semen treated group showed 52.7%of transcriptional activities compared to the control group and Platycodi Radix treated group showed 60.2% of transcriptional activities compared to the control group. In IL-6 study, Armeniacae Amarum Semen treated group showed 42.3% of transcriptional activities compared to the control group and Platycodi Radix treated group showed 69.1% of transcriptional activities compared to the control group. Conclusion : This study shows that Armeniacae Arnarum Semen and Platycodi Radix have the inhibitory effect on the transcription of IL-4, IL-5 and IL-6 gene expression in RBL-2H3 cell lines. Advanced studies are required to investigate the mechanisms of inhibition by herbal medicine in asthma model.

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Effect of globular adiponectin on interleukin-6 and interleukin-8 expression in periodontal ligament and gingival fibroblasts

  • Park, Hong-Gyu;Bak, Eun-Jung;Kim, Ji-Hye;Lee, Yang-Sin;Choi, Seong-Ho;Cha, Jeong-Heon;Yoo, Yun-Jung
    • Journal of Periodontal and Implant Science
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    • 제41권3호
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    • pp.149-156
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    • 2011
  • Purpose: Globular adiponectin (gAd) is a type of adipocytokine, which is mainly produced by adipose tissue. It has been reported that gAd acts as a pro- as well as an anti-inflammatory factor. Interleukin (IL)-6 and IL-8 are pro-inflammatory cytokines. To investigate the role of gAd on periodontal tissues, the expression of adiponectin receptor 1 (AdipoR1) and the effect of gAd on the expression of IL-6 and IL-8 were investigated in periodontal ligament (PDL) and gingival fibroblasts. Methods: PDL and gingival fibroblasts were cultured from human periodontal tissues. gAd derived from Escherichia coli and murine myeloma cells were used. The expression of AdipoR1 was estimated by reverse transcription-polymerase chain reaction and western blot The expression of cytokines was measured by enzyme-linked immunosorbent assay. Results: PDL and gingival fibroblasts expressed both mRNA and protein of AdipoR1. gAd derived from E. coli increased the production of IL-6 and IL-8, but polymyxin B, an inhibitor of lipopolysaccharide (LPS), inhibited IL-6 and IL-8 production induced by gAd in both types of cells. gAd derived from murine myeloma cells did not induce IL-6 and IL-8 production in those cells. gAd derived from E. coli contained higher levels of LPS than gAd derived from murine myeloma cells. LPS increased production of IL-6 and IL-8 in PDL and gingival fibroblasts, but pretreatment of cells with gAd derived from murine myeloma cells did not inhibit LPS-induced IL-6 and IL-8 expression. Conclusions: Our results suggest that PDL and gingival fibroblasts express AdipoR1 and that gAd does not act as a modulator of IL-6 and IL-8 expression in PDL and gingival fibroblasts.

산소 장력이 치주인대에서 유래한 세포의 활성과 기능에 미치는 영향 (EFFECT OF OXYGEN TENSION ON THE ACTIVITY AND FUNCTION OF THE CELLS DERIVED FROM HUMAN PERIODONTAL LIGAMENT)

  • 사명희;양원식
    • 대한치과교정학회지
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    • 제27권3호
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    • pp.503-513
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    • 1997
  • 본 연구는 산소 장력이 사람의 치주인대에서 유래된 세포의 활성과 세포외 기질 및 cytokine에 미치는 영향을 알아 보고자 저산소 및 과산소 조건에서 배양한 후 세포의 활성, 총 단백질 합성, 교원질 합성, 그리고 $IL-1{\beta}$, IL-6, $TNF-{\alpha}$를 측정하였다. 교정치료를 위해 발거한 제 1 소구치에서 사람의 치주인대 세포를 채취하여 $37^{\circ}C,\;5\%\;CO_2,\100\%$ 습도의 환경에서 배양한 후 5 내지 6 계대배양하여 실험에 사용하였다. Gaspack system에 $0.2{\mu}m$ Millipore filter를 부착하여 세균 감염을 막았고, 저산소군에는 $10\%\;O_2,\;5\%\;CO_2,\;85\%\;N_2$ 가스를, 과산소군에는 $90\%\;O_2,\;5\%\;CO_2,\;5\%\;N_2$ 가스를 연결하여 산소 장력에 변화를 주었으며 대조군에는 $5\%\;CO_2,\;95\%$ 공기를 공급하였다. $37^{\circ}C$ 에서 2, 4, 6일간 배양한 후에 세포활성을 측정하기 위해 tetrazolium(MTT) assay를 시행하였고 sulforhodamine B(SRB) assay를 이용하여 총 단백질 합성을 알아보았으며, 4-hydroxyproline 측정으로 교원질 합성을 측정해 보았다. 또한 효소면역측정법으로 $IL-1{\beta}$, IL-6, $TNF-{\alpha}$를 측정하여 다음과 같은 결과를 얻었다. 1. 저산소근에저 세포 활성과 총 단백질 합성은 대조군보다 다소 높거나 같은 정도이었다. 2. 과산소군에서 세포 활성은 대조군보다 낮았으며 총 단백질 합성도 다소 감소되었다. 3. 교원질 합성은 저산소군과 과산소군에서 대조군보다 유의하게 감소되었다가 배양기간이 길어짐에 따라 증가되어 대조군과 유사한 정도에 달했다. 4. 효소면역법 측정 결과 IL-6, $TNF-{\alpha},\;IL-1{\beta}$ 순으로 다량 검출되었다. 5. IL-6, $TNF-{\alpha},\;IL-1{\beta}$는 저산소군과 과산소군에서 배양기간이 길어짐에 따라 대조군에 비해 급격히 증가하였다. 5. IL-6, $TNF-{\alpha}$는 과산소 조건에서 배양 6일 후에는 대조군에 비해 유의하게 증가하였으며 이는 배양 2일 또는 4일 후보다도 유의하게 증가한 것이었다.

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