• Title/Summary/Keyword: Interleukin-6

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The role of Interleukin-6 and Interleukin-10 in human pulpal inflammation (성인 치수염에서의 INTERLEUKIN-6와 INTERLEUKIN-10의 작용에 관한 연구)

  • Park, Han-Soo
    • Restorative Dentistry and Endodontics
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    • v.27 no.5
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    • pp.515-520
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    • 2002
  • 연구목적 : Cytokine은 유해 미생물에 대한 숙주의 방어기전으로서의 염증반응에서 숙주세포 상호간의 작용을 매개해 주는 역할을 하며, 치수조직에서도 그 존재가 확인된 바 있다. Interleukin-6와 Interleukin-10은 염증의 초기에 작용하는 cytokine으로 알려져 있으나, 치수 및 치근단 질환에서의 역할과 상호작용에 대해서는 잘 알려져 있지 않다. 본 연구에서는 성인의 치수염이 있는 치아에서 Interleukin-6와 Interleukin-10의 농도를 측정하고 이를 정상 치수와 비교함으로써 이들의 치수염에서의 작용을 연구하는 것을 목적으로 하였다. 방법 : 총 60개의 성인 치아들을 대상으로 하였다. 치수염으로 진단된 치아들을 실험군으로 하였고, 정상 치수를 가진 치아들을 대조군으로 하였다. 발치한 치아에서 치수조직을 적출하였다. ELISA를 사용하여 적출된 치수조직 내의 Interleukin-6와 Interleukin-10의 양을 측정하였으며, 그 결과를 Mann-Whitney rank sum test를 사용하여 통계학적 유의성을 검증하였다. 조직학적 검사를 위해서는 발치된 치아에서 치수조직을 적출하여 헤마톡실린-에오신 염색을 시행한 후 관찰하였다. 결과 : 1. Interleukin-6의 농도는 실험군에서 대조군보다 유의하게 높게 나타났다(p<0.05). 2. Interleukin-10의 농도는 실험군에서 대조군보다 유의하게 높게 나타났다(p<0.05). 3. 조직학적 관찰 결과 실험군에서 림프구의 침윤과 부분적인 조직의 괴사 등 염증반응의 양상을 관찰할 수 있었다.

Interleukin-6 and Interleukin-10 in experimentally induced rat Pulpal inflammation (실험적으로 유도된 백서의 치수염에서의 INTERLEUKIN-6와 INTERLEUKIN-10의 농도와 분포에 관한 연구)

  • Chang, Seok-Woo;Baek, Seung-Ho;Kim, Chul-Ho;Lim, Sung-Sam
    • Restorative Dentistry and Endodontics
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    • v.27 no.3
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    • pp.232-238
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    • 2002
  • 연구목적 : Cytokine은 유해 미생물에 대한 숙주의 방어기전으로서의 염증반응에서 숙주세포 상호간의 작용을 매개해 주는 역할을 하며, 인간의 치수조직에서도 그 존재가 확인된 바 있다. Interleukin-6와 Interleukin-10은 염증의 초기에 작용하는 cytokine으로 알려져 있으나, 치수 및 치근단 질환에서의 역할과 상호작용에 대해서는 잘 알려져 있지 않다. 본 연구에서는 치수염의 원인균으로 알려진 Prevotella nigrescens를 이용하여 백서의 치수염을 유도한 후 시간의 변화에 따른 Interleukin-6, Interleukin-10의 농도의 변화를 측정하여 이들의 치수염에서의 작용을 알아보는 것을 목적으로 한다. 방법 : 실험적으로 치수의 염증반응을 일으키기 위하여 치수염의 원인균으로 알려진 Prevotella nigrescens를 이용하였다. 실험동물의 하악절치의 incisal tip부분을 절단한 후(n=120), 치수강을 개방시켰다. 실험군에서는 Prevotella nigrescens를 멸균된 면구에 묻혀서 개방된 치수강 내에 접종하였으며, 대조군에서는 균을 접종하지 않고 멸균된 면구만을 개방된 치수강 내에 위치시켰다. 그 후 1, 2, 5일이 경과되었을 때 실험에 사용된 치아를 발치하여, 치수조직을 적출하였다. Amersham사의 ELISA kit를 사용하여 적출된 치수조직내의 Interleukin-6와 Interleukin-10의 양을 측정하였으며 그 결과를 Mann-Whitney rank sum test를 사용하여 통계학적 유의성을 검증하였다. 조직학적 검사를 위해서는 발치된 치아를 nitric acid를 사용하여 탈회시킨 후 헤마톡실린-에오신 염색을 시행한 후 관찰하였다. 결과 : 1) Interleukin-6의 농도는 균접종 후 1일, 2일, 5일 모두에서 실험군에서 대조군보다 높게 나타났으며, 균접종 1일째의 결과는 통계적 유의성이 있었다(P<0.05). 2) Interleukin-10의 농도는 균접종 후 1일, 2일, 5일 모두에서 실험군에서 대조군보다 높게 나타났으며, 균접종 1일째의 결과는 통계적 유의성이 있었다(P<0.05). 3) Interleukin-10/1nterleukin-6 ratio는 실험군과 대조군 모두에서 1일보다 2일째의 결과에서 더 높은 값을 보였으며 대조군에서는 통계적 유의성을 보였다(P<0.05). 4)조직학적 관찰결과 균접종 후 2일째의 조직표본에서는 림프구의 침윤과 부분적인 조직의 괴사 등 염증반응의 양상을 관찰할 수 있었으며, 균접종 5일째의 조직표본에서는 염증의 정도가 감소되는 양상을 확인할 수 있었다.

Effect of $17{\beta}$-Estradiol and 1,25-Dihydroxyvitamin $D_3$ on Interleukin-6 Production of Periodontal Ligament Cells (($17{\beta}$-Estradiol 및 1,25-Dihydroxyvitamin $D_3$가 치주인대 세포의 Interleukin-6의 생성에 미치는 영향)

  • Kwak, Wall-Ah;Choi, Bong-Kyu;Lee, Hyun-Jung;Yoo, Yun-Jung
    • Journal of Periodontal and Implant Science
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    • v.29 no.3
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    • pp.645-654
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    • 1999
  • Interleukin-6(IL-6) stimulate osteoclast differentiation. $17{\beta}$-estradiol, 1,25-dihydroxyvitamin $D_3$(1,25-$(OH)_2D_3$) and interleukin-$1{\beta}$ inhibit or stimulate osteoclast differentiation by decreasing or increasing the synthesis of interleukin-6(IL-6) from stromal/osteoblastic cells, respectively. Periodontal ligament(PDL) cells reside between the alveolar bone and the cementum and have osteoblastic characteristics. To estimate the effect of $17{\beta}$-estradiol and 1,25$(OH)_2D_3$ on IL-6 production of PDL cells, PDL cells were treated with $17{\beta}$-estradiol or 1,25-$(OH)_2D_3$ in the absence or the presence of IL-$1{\beta}$. The concentration of IL-6 produced form PDL cells was determined by enzym linked immunosorbent assay(ELISA). In unstimulated PDL cells, we detected constitutive production of IL-6 at 1st and 2nd day. IL-$1{\beta}$ increased IL-6 synthesis at 1st day and 2nd day. $17{\beta}$-estradiol had no significant effect on the secretion of this cytokine, either constitutively or after stimulation with IL- $1{\beta}$(0.05 ng/ml). 1,25-$(OH)_2D_3$($10^{-8}M$) decreased not only constitutive IL-6 production but also IL-$1{\beta}$-induced IL-6 production at 2nd day. These results suggest that 1,25-$(OH)_2D_3$ may control IL-$1{\beta}$-induced osteoclast differentiation by decreasing IL-$1{\beta}$-induced IL-6 secretion of PDL cells.

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Effect of Germinated Seed of Rhynchosia Volubilis on Interleukin-6 in Ovariectomized Rats (발아(發芽)한 서목태(鼠目太)가 난소적출 흰쥐의 Interleukin-6에 미치는 영향)

  • Jung Ho-Long;Cha Yun-Yeou
    • Journal of Physiology & Pathology in Korean Medicine
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    • v.19 no.5
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    • pp.1261-1266
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    • 2005
  • The aim of this study is to find out what inhibition effects the Germinated Seed of Rhynchosia Volubilis(GSRV) has by its feeding period on the bone absorption in ovariectomized white rats. Close examination of the amounts of the Interleukin-6 in the rats by the groups of one, two and three-day germination periods led to the following conclusions. Feeding ovariectomized white rats with GSRV by the groups of one, two and three-day germination periods showed less amounts of Interleukin-6 in their bone marrow in all the feeding periods of two, three and four weeks than in the case of control group, revealing a statistical significance. Therefore, the Germinated Seed of Rhynchosia Volubilis(GSRV) is believed to have inhibition effects on bone resorption.

ACTIONS OF RECOMBINANT $INTERLEUKIN-1{\beta}$, TUMOR NECROSIS $FACTOR-{\alpha}$ AND INTERLEUKIN-6 ON BONE RESORPTION IN VITRO (RECOMBINANT $INTERLEUKIN-1{\beta}$, TUMOR NECROSIS $FACTOR-{\alpha}$ 및 INTERLEUKIN-6의 골흡수 유도 효과에 관한 연구)

  • Lee, Yong-Moo;Choi, Sang-Mook
    • Journal of Periodontal and Implant Science
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    • v.24 no.1
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    • pp.155-164
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    • 1994
  • 치조골흡수는 만성치주질환의 전형적인 증상이다. 골흡수에 작용하는 여러 요인들 중에서도, 특히 최근에 들어서 몇몇 cytokine들에 대한 관심이 높아지고 있는데, interleukin-1(IL-1), tumor necrosis factor(TNF) 및 interleukin-6(IL-6) 등이 치주질환의 진행과정에서 중요한 치조골흡수요인으로 제안되고 있다. 본 연구의 목적은 신생쥐의 골조직 배양실험을 통해서 recombinant human $interleukin-1{\beta}$ ($rHuIL-1{\beta}$), recombinant human tumor necrosis $factor-{\alpha}$($rHuTNF-{\alpha}$) 및 recombinant human interleukin-6(rHuIL-6) 의 골흡수 유도효과를 알아보고, cyclooxygenase 억제제인 indomethacin과 recombinant murine $interferon-{\gamma}$($rMurIFN-{\gamma}$)가 이들 cytokine의 골흡수 유도능력에 미치는 영향을 알아봄으로써 이들 cytokine의 작용기구에 대해서 알아보고자 하는데 있다. 생후 1-2일된 쥐에게 $1{\mu}Ci^{45}CaCl_2$를 피하주사하고 4일 후에 쥐를 희생시켜 $^{45}Ca$ 로 표지된 두개골을 얻어 24시간 전배양 후, 각 cytokine ($rHuIL-1{\beta}$, $rHuTNF-{\alpha}$ 및 rHuIL-6)과 cytokine 및 첨가약제 (indomethacin 및 $rMurIFN-{\gamma}$)가 함유된 배지로 교환하여 48시간 배양한다. 골흡수 유도효과는 두개골에서 48시간의 배양 중 유리되는 $^{45}Ca$의 방사능 정도로 평가하였다. 본 연구를 통해 다음과 같은 결과를 얻었다. 1. $rHuIL-1{\beta}$ ($10^{-12}-10^{-9}M$) 및 $rHuTNF-{\alpha}$ ($10^{-10}-10^{-8}M$)는 농도변화에 따르는 골흡수 유도효과를 보였으나 , rHuIL-6 ($10^{-10}-10^{-8}M$)는 유의할 만한 효과를 보이지 않았다. 2. Indomethacin ($10^{-6}M$)은 $rHuIL-1{\beta}$$rHuTNF-{\alpha}$의 골흡수 유도작용에 유의할 만한 억제효과를 나타내지 않았다. 3. $rMurIFN-{\gamma}$ (1000 U/ml) 은 $rHuIL-1{\beta}$$rHuTNF-{\alpha}$의 골흡수 유도작용에 유의한 억제효과를 나타내었다. 본연구를 통해 치주질환 환자의 치주조직에서 검출되는 $IL-1{\beta}$$TNF-{\alpha}$가 치조골 흡수에 중요한 역할을 할 것으로 생각된다.

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Assessment of interleukin-1beta and interleukin-6 in the crevicular fluid around healthy implants, implants with peri-implantitis, and healthy teeth: a cross-sectional study

  • Yaghobee, Siamak;Khorsand, Afshin;Ghohroudi, Amir Alireza Rasouli;Sanjari, Khashayar;Kadkhodazadeh, Mahdi
    • Journal of the Korean Association of Oral and Maxillofacial Surgeons
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    • v.40 no.5
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    • pp.220-224
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    • 2014
  • Objectives: This study aimed to assess and compare the levels of interleukin-1beta (IL-$1{\beta}$) and interleukin-6 (IL-6) in the crevicular fluid around healthy implants, implants with peri-implantitis, and healthy teeth. Materials and Methods: This study evaluated 16 dental implants in 8 patients (4 males and 4 females). These patients had at least one healthy implant and one implant with peri-implantitis next to healthy teeth. The crevicular fluid was collected using absorbent cones and transferred to the laboratory. Specimens were evaluated by ELISA for interleukin levels. Data were analyzed using repeated measures ANOVA and Bonferroni tests (P<0.05). Results: Levels of IL-$1{\beta}$ in the crevicular fluid around implants with peri-implantitis were significantly higher than around healthy implants (P=0.002); the latter was significantly higher than around healthy teeth (P=0.015). A significant difference was found in the level of IL-6 in the crevicular fluid around implants with peri-implantitis and healthy implants (P=0.049) and also between implants with peri-implantitis and healthy teeth (P<0.001). Conclusion: Within the limitations of this study, significant differences exist in the levels of IL-$1{\beta}$ and IL-6 in the crevicular fluid of implants with peri-implantitis, healthy implants, and healthy teeth. More studies with larger sample sizes in different populations are necessary.

Erythromycin Inhibits Interleukin-6 and Interleukin-8 Expression and Promotes Apoptosis of Activated Human Neutrophils in Vitro

  • Baik, A-Rom;Lee, Jong-Ho
    • The Korean Journal of Physiology and Pharmacology
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    • v.11 no.6
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    • pp.259-262
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    • 2007
  • Diffuse panbronchiolitis (DPB) is a pulmonary disease characterized by chronic inflammation of the bronchioles and chronic infiltration of inflammatory cells in the lungs. Macrolides are effective therapeutic agents for chronic respiratory tract diseases, such as DPB. However, the mechanisms by which macrolides modulate the immune responses in patients with DPB remain unclear. To understand clinical efficacy for the treatment of DPB by macrolides, the effects of erythromycin (EM) on the expression of pro-inflammatory cytokines such as interleukin-6 (IL-6) and interleukin-8 (IL-8) by human neutrophils were examined. Pre-treatment with EM significantly decreased the expression of IL-6 and IL-8 transcripts by lipopolysaccharide (LPS)-stimulated human neutrophils. EM also reversed the enhanced survival of human neutrophils by LPS. These data indicate that EM has achieved therapeutic effect for patients with DPB, in part, through decreasing the expression of pro-inflammatory cytokines and the survival of neutrophils.

Effect of Sanyeoleumja on Inflammatory Response of RAW 264.7 Cells (RAW 264.7 cell의 염증반응에 대한 산열음자(散熱飮子)의 항염증 효과)

  • Kim, Tae Yeon
    • Journal of Physiology & Pathology in Korean Medicine
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    • v.34 no.1
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    • pp.7-13
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    • 2020
  • Sanyeoleumja (SY) is the traditional Korean medicinal prescription for the treatment of inflammatory diseases of eyes. In this study, the anti-inflammatory effects of SY water extract were investigated. To measure the anti-inflammatory effects of SY, we examined the productions of inflammatory factor including nitric oxide (NO), prostaglandin E2 (PGE2), inducible nitric oxide synthase (iNOS), cyclooxygenase-2 (COX-2), interleukin-6 (IL-6), interleukin-1β (IL-1β) in lipopolysaccharide (LPS)-induced RAW 264.7 cells. SY inhibited NO and PGE2 production in a dose dependent manner and decreased the protein and mRNA expression of iNOS and COX-2. Also, SY decreased the mRNA expression of interleukin-6 (IL-6) and interleukin-1β (IL-1β). In conclusion, SY downregulated LPS-induced inflammatory factor productions, which could be a clinical basis for inflammatory diseases.

The Production of Foreign Protein in Mouse L Cell (Mouse L Cell에서의 외래 유전자 유래 단백질의 생산)

  • ;Tadamitsu Kishimoto
    • Microbiology and Biotechnology Letters
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    • v.21 no.5
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    • pp.421-427
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    • 1993
  • Some interleukin 6 (IL-60 transcription control factors were resported as the regulator of IL-6 expression. A nuclear protein bound to interleukin 1 (IL-1) responsive element in the IL-6 promoter region was named NF-IL6 (nuclear factor for IL-6). This NF-IL6 was known to be very imporant as a transcription factor for various immuno-protein as well as for IL-6. The human NF-IL6 genes were transfected into the mouse L cells under the metallothionein promoter (MT promoter) to establish a model system for the expression of foreign gene in the mammalian cell line.

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Circulating Levels of Interleukin-6 and Soluble Interleukin-6 Receptor in Acute Asthma (급성 천식환자에서 혈중 Interleukin-6 및 Soluble Interleukin-6 수용체의 변화)

  • Lee, Kyoung-Hoon;Lee, Yong-Chul;Cheon, Ki-Tae;Lee, Heung-Bum;Rhee, Yang-Keun
    • Tuberculosis and Respiratory Diseases
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    • v.48 no.4
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    • pp.464-470
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    • 2000
  • Background : The recognition of bronchial asthma as an inflammatory disease led to the search for soluble markers that would be useful in assessing airway inflammation. Interleukin-6 (IL-6) is a representative proinflammatory cytokine that has been shown to be connected with various inflammatory diseases. IL-6 acts via specific receptors that consist of the IL-6 binding glycoprotein gp80 and the signal transducer gp130. In the search for markers of airway inflammation, delete the role of soluble interleukin-6 receptor (sIL-6R) and IL-6 in acute asthma were investigated. Methods : Serum levels of sIL-6R and IL-6 were measured in 78 acute asthmatics, in 15 patients with asymptomatic asthma and in 10 healthy control subjects by a specific ELISA using a murine antihuman IL-6R, IL-6 mAb ($Quantikine^{(R)}sIL$-6R, IL-6). Results : Serum levels of IL-6 in acute asthmatics significantly exceeded those of control subjects. The levels of sIL-6R in acute asthmatics were also significantly increased compared to those of control subjects. The serum concentrations of IL-6 obtained in acute asthmatics were elevated compared with those in asymptomatic asthmatics. However, association between eosinophilic count/IgE and IL-6/sIL-6R in acute asthma could not be found. Conclusion : Our results suggest that IL-6 may be involved in the pathogenesis of acute asthma, and serum levels of IL-6 and sIL-6R may reflect the severity of airway inflammation.

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