• Title/Summary/Keyword: Interleukin 6

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Induction of Nitric Oxide and Cytokines in Macrophages by Codonopsis lanceolata (대식세포에서 산더덕에 의한 NO 생성 및 싸이토카인 유도효과)

  • So, Mi-Sun;Lee, Jin-Sil;Yi, Seh-Yoon
    • Korean Journal of Food Science and Technology
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    • v.36 no.6
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    • pp.986-990
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    • 2004
  • The immunomodulatory effect of Codonopsis lanceolata based on the production of cytokines and the activation of macrophage was studied. The mRNA expression of nitric oxide synthase (iNOS) was gradually induced after 24 hr treatment of Codonopsis lanceolata, and NO production was a maximum after 24 hr treatment with 1 mg/mL. RAW 264.7 cell on in vitro treatment with Codonopsis lanceolata induced mRNA of cytokines such as interleukin-1(IL-1)${\beta}$, interleukin-6(IL-6), tumor necrosis $factor(TNF)-{\alpha}\;and\;interferon(IFN)-{\gamma}$; $IL-1{\beta}$ and IL-6 mRNA were gradually induced up to 24 hr, $TNF-{\alpha}\;mRNA$ was regularly induced up to 24 hr, and $IFN-{\gamma}\;mRNA$ level was a maximum within 1 hr. These results suggest that Codonopsis lanceolata exerts as an effective immunomodulator and enhances antitumor activity of macrophages.

The Experimental Study on Anti-inflammatory Effects of Eungapbang (EGB) (은갑방(銀甲方)이 염증 관련 cytokines의 유전자 발현과 생성량에 미치는 영향)

  • Lee, Bo-Ra;Yoo, Dong-Youl
    • The Journal of Korean Obstetrics and Gynecology
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    • v.22 no.3
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    • pp.83-98
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    • 2009
  • Purpose: This study was performed to evaluate the anti-inflammatory effect of Eungapbang extract (EGB). Methods: To evaluate the anti-inflammatory effects of EGB, we nourished RAW 264.7 cell lines in the laboratory dish. Next, inflammatory cytokine concentrations were analyzed. Then, sera were prepared from blood after lipopolysaccharide (LPS) injection in chemically induced mouse models of intestinal inflammation, and Interleukin-1${\beta}$ (IL-1${\beta}$), interleukin-6 (IL-6) and tumour necrosis factor alpha (TNF-${\alpha}$) were measured using ELISA kits. Results: 1. EGB significantly suppressed the expression levels of IL-1${\beta}$ and NOS-II genes at 100, 50 and 10 ${\mu}g/m{\ell}$ concentrations, and IL-6, TNF-${\alpha}$ and COX-2 mRNAs at 100 and 50 ${\mu}g/m{\ell}$ concentrations. 2. EGB significantly reduced the production level of IL-1${\beta}$ and TNF-${\alpha}$ at 100${\mu}g/m{\ell}$ concentrations, and IL-6 at 100 and 50 ${\mu}g/m{\ell}$ concentrations. 3. EGB significantly decreased the production level of IL-1${\beta}$ and IL-6 in sera of acute inflammation induced mice. 4. EGB could suppress the expression level of IL-1${\beta}$ and IL-6 mRNA in spleen tissues in acute inflammation induced mice. Conclusion: On the basis of the above results, it is confirmed that the anti-inflammatory effects of EGB were recognized. Therefore, EGB is recommended as promising therapy for treatment of such ailments as pelvic inflammatory disease.

Inhibitory effect of Panax ginseng and Pleurotus osteratus complex on expression of cytokine genes induced by extract of Dermatophagoides pteronissinus in human monocytic THP-1 and EoL-1 cells

  • Park, Kyeong Hun;Lee, Eun Suk;Jin, Yong Ik;Myung, Kyung Sun;Park, Hong Woo;Park, Chun Geon;Kong, Won Sik;Kim, Young Ock
    • Journal of Mushroom
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    • v.14 no.4
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    • pp.155-161
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    • 2016
  • A recent study reported that Pleurotus ostreatus has the potential to be used as a ${\beta}-glucan-based$ cream for supportive complementary therapy of atopic dermatitis. KH054 is a new herbal prescription consisting of P. ostreatus and Panax ginseng. The effects of atopic dermatitis-induced materials on the expression of cytokine genes in human monocytes (THP-1, EoL- 1) have been examined. Some reports demonstrated that P. ginseng augments the activity of natural killer cells, which plays an important role in innate immunity against infection and tumor development. Monocyte chemotactic protein 1 (MCP-1), interleukin (IL)-6, and IL-8 have important roles in mediating the infiltration of various cells into the skin of atopic dermatitis and psoriasis. The present study investigated whether KH054 on induced IL-6, IL-8, and MCP-1 secretion by house dust mite (Dermatophagoides pteronissinus) in THP-1 (human acute monocytic leukemia) and EoL-1(Human eosinophilic leukemia) cell. D. pteronissinus functions in the pathogenesis of allergic diseases, including atopic dermatitis and asthma. The inhibitory effect of KH054 on the induction of IL-6, IL-8, and MCP-1 secretion by D. pteronissinus extract in THP-1 and EoL-1 cells was examined. KH054 potently suppressed the elevated production of IL-6 and IL-8 induced by D. pteronissinus treatment in THP-1 and EoL-1 cells. Based on the present results, KH054 may be useful for developing functional foods to treat atopic dermatitis.

Effects of High-Intensive Exercise Duration on Hematologic Properties and Cytokines in Rats (고강도운동 지속시간이 rat의 혈액학적 조성과 사이토카인에 미치는 영향)

  • Hyun, Kyung-Yae
    • Journal of Life Science
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    • v.21 no.7
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    • pp.1039-1045
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    • 2011
  • The effects of duration and time-dependent, high-intensity exercise on hematological properties and inflammation-related parameters in rats were studied. 20, 60, and 120 min of high-intensive exercise were performed daily for 8 weeks. None of the complete blood count (CBC) factors were affected by the exercise, except for the leukocyte concentration which, in the 20 min group, showed an increase of 47% compared to the control, but this was decreased after 60 min by 30% compared to the control. As exercise was performed for 60 min or longer, serum concentrations of $Fe^{++}$, unsaturated iron biding capacity (UIBC), and total iron biding capacity (TIBC) were significantly elevated in comparison to the control, where 20 min of exercise did not show any change. Both levels of interleukin-6 (IL-6), a pro-inflammatory cytokine, and interleukin-10 (IL-10), an anti-inflammatory cytokine in the serum, were elevated in response to the high-intensity exercise, however the rate of IL-6 increase was higher than the rate of exercise intensity increase, thus the offset of inflammation might be suggested. The concentration of nitric oxide (NO) in the serum became high in response to the exercise. Overall, the current observation suggests that inflammation-like responses to high-intensity exercise might be due to high circulation of blood flow and high oxygen requirement, resulting in systemic damages. However, under the current high-intensity exercise conditions, more than 20 min of exercise might not be suggested for health care purposes.

Study on the Anti-inflammatory Effect of Yeonguemjiri-tang Water Extract (연금지리탕(連芩止痢湯) 물 추출물의 항염증작용에 관한 연구)

  • Kim, Jung-Hwan;Lee, Jang-Suk;Kang, Ok-Hwa;Kwon, Dong-Yeul;Lee, Ki-Nam;Chong, Myong-Soo
    • Journal of Physiology & Pathology in Korean Medicine
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    • v.25 no.6
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    • pp.1032-1038
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    • 2011
  • Yeonguemjiri-tang(連芩止痢湯, YGT) exhibits potent anti-inflammatory activity in widely intestine disease, but its mechanism undisclosed. To elucidate the molecular mechanisms of YGT on pharmacological and biochemical actions in inflammation, we examined the effect of YGT on pro-inflammatory mediators in phorbol 12-myristate 13-acetate (PMA) plus A23187-induced mast cell and lipopolysaccharide (LPS)-stimulated macrophages. The investigation focused on whether YGT inhibited pro-inflammatory cytokines such as interleukin-6 (IL-6), interleukin-8 (IL-8), tumor necrosis factor-${\alpha}$ (TNF-${\alpha}$) in PMA plus A23187-induced HMC-1 cells and inflammatory madiators such as nitric oxide (NO), TNF-${\alpha}$, IL-6, iNOS, COX-2 in LPS-stimulated RAW 264.7 cells. We found that YGT inhibited LPS-induced NO, TNF-${\alpha}$ and IL-6 productions as well as the expressions of iNOS and COX-2. These results suggest that YGT has inhibitory effects on mast cell-mediated and macrophage-mediated inflammation.

Extracellular Signal-regulated Kinase Activation Is Required for Serine 727 Phosphorylation of STAT3 in Schwann Cells in vitro and in vivo

  • Lee, Hyun-Kyoung;Jung, Jun-Yang;Lee, Sang-Hwa;Seo, Su-Yeong;Suh, Duk-Joon;Park, Hwan-Tae
    • The Korean Journal of Physiology and Pharmacology
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    • v.13 no.3
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    • pp.161-168
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    • 2009
  • In the peripheral nerves, injury-induced cytokines and growth factors perform critical functions in the activation of both the MEK/ERK and JAK/STAT3 pathways. In this study, we determined that nerve injury-induced ERK activation was temporally correlated with STAT3 phosphorylation at the serine 727 residue. In cultured Schwann cells, we noted that ERK activation is required for the serine phosphorylation of STAT3 by neuropoietic cytokine interleukin-6 (IL-6). Serine phosphorylated STAT3 by IL-6 was transported into Schwann cell nuclei, thereby indicating that ERK may regulate the transcriptional activity of STAT3 via the induction of serine phosphorylation of STAT3. Neuregulin-1 (NRG) also induced the serine phosphorylation of STAT3 in an ERK-dependent fashion. In contrast with the IL-6 response, serine phosphorylated STAT3 induced by NRG was not detected in the nucleus, thus indicating the non-nuclear function of serine phosphorylated STAT3 in response to NRG. Finally, we determined that the inhibition of ERK prevented injury-induced serine phosphorylation of STAT3 in an ex-vivo explants culture of the sciatic nerves. Collectively, the results of this study show that ERK may be an upstream kinase for the serine phosphorylation of STAT3 induced by multiple stimuli in Schwann cells after peripheral nerve injury.

Study on Antioxidant and Anti-inflammatory Effects of Components of Mahwangbujaseshin-tang (마황부자세신탕(麻黃附子細辛湯)의 각 구성약물별 항산화 및 항염 효능에 관한 연구)

  • Choi, Chul-Woo;Oh, Min-Seok
    • Journal of Korean Medicine Rehabilitation
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    • v.24 no.4
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    • pp.15-28
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    • 2014
  • Objectives This study was carried out to find out the Antioxidant and Anti-inflammatory Effects of Components of Mahwangbujaseshin-tang in LPS-Stimulated RAW264.7 Macrophages. Methods There are 5 experimental groups. ; normal, control, EH (Ephedrae Herba), ALRP (Aconiti Lateralis Radix Preparata) and AR (Asiasari Radix). The extract of EH, ALRP and AR ($100{\mu}g/ml$) was added to each group. We examined cytotoxicity, total phenolic contents, DPPH and ABTS free radical scavenging activity, Intracellular ROS (reactive oxygen species) production, NO (Total Nitric oxide), iNOS (inducible nitric oxide synthase), PGE2 (prostaglandin E2), COX-2 (cyclooxygenase-2), $IL-1{\beta}$ ($interleukin-1{\beta}$), IL-6 (interleukin-6), $TNF-{\alpha}$ (tumor necrosis factor-${\alpha}$), MMP-9 (matrix metalloproteinase-9), TIMP-1 (tissue inhibitor of metalloproteinase-1) and HO-1 (heme oxygenase-1) expression level. Results 1. Total phenolic contents of EH were in the highest level. 2. DPPH and ABTS free radical scavenging activity of EH was in the highest level. 3. ROS production was significantly decreased in AR. 4. NO production was significantly decreased in EH, ALRP, AR and iNOS expression was decreased in EH, AR. 5. PGE2 and COX-2 expression was decreased in EH, AR. 6. $IL-1{\beta}$ production was significantly decreased in EH, AR and IL-6 production was significantly decreased in AR. $TNF-{\alpha}$ production was significantly decreased in ALRP, AR. 7. MMP-9 and TIMP-1 production were significantly decreased in EH. 8. HO-1 expression was significantly increased in EH. 9. With simultaneous usage of SnPP which is expression inhibitor of HO-1, NO, $IL-1{\beta}$, IL-6 and $TNF-{\alpha}$ production were partially increased in EH, ALRP, AR. Conclusions According to this study, Components of Mahwangbujaseshin-tang have anti-oxidants and anti-inflammation effects in LPS-Stimulated RAW264.7 Macrophages.

Porphyromonas gingivalis Lipopolysaccharide Regulates Migration of Vascular Smooth Muscle Cells

  • Kim, Yeon;Kim, So-Jeong;Kim, Mi-Kyoung;Park, Hyun-Joo;Kim, Hyung Joon;Bae, Soo-Kyung;Bae, Moon-Kyoung
    • International Journal of Oral Biology
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    • v.41 no.4
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    • pp.217-223
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    • 2016
  • Porphyromonas gingivalis, a foremost periodontal pathogen, has been known to cause periodontal diseases. Epidemiologic evidences have indicated the involvement of P. gingivalis in the development of cardiovascular diseases. In this study, we show that the P. gingivalis lipopolysaccharide increases the mRNA expression and protein secretion of interleukin-6 in vascular smooth muscle cells. We demonstrate that P. gingivalis LPS activates the extracellular signal-regulated kinase 1/2 (ERK1/2), p38 mitogen-activated protein kinase (MAPK), and Akt, which mediate the IL-6 expression in vascular smooth muscle cells. Also, P. gingivalis LPS stimulates the vascular smooth muscle cell migration, which is a critical step for the progression of atherosclerosis. Moreover, neutralization of the IL-6 function inhibits the migration of vascular smooth muscle cells induced by P. gingivalis LPS. Taken together, these results indicate that P. gingivalis LPS promotes the expression of IL-6, which in turn increases the migration of vascular smooth muscle cells.

Possible Presence of an Interleukin-6-Like Molecule in the Immunized Bombyx mori L. (Lepidoptera)

  • Kim, Iksoo;Lee, Young-Shin;Lee, Joon-Ha;Kim, Sang-Hyun;Kang, Pil-Don;Lee, In-Hee;Kim, Jin-Won;Lee, Heui-Sam;Kang, Seok-Woo
    • International Journal of Industrial Entomology and Biomaterials
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    • v.7 no.2
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    • pp.165-173
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    • 2003
  • Cytokines represent an essential part of the innate immune response in mammals. Recently, several studies have reported the presence of cytokine-like activities and molecules in the invertebrates such as echinoderms, tunicates, mollusks and insects. In our serial study, we investigated presence of cytokines in the silkworm, Bombyx mori, infected with several immune inducers. Western blotting analysis using rabbit anti-human cytokines showed the presence of IL-6-like molecule in the hemolymph collected at 8 and 24 hrs after infection with peptidoglycan and oligodeoxynucleotide, and the molecular weight of the proteins was ∼45 kDa. We attempted to isolate the molecule by gel permeation HPLC, anion exchange chromatography, ultra centrifugation, and immuno-dot-blot assay, but until now the effort was not much successful yet. It, however, does not appear that the IL-6-like molecule in the silkworm larvae is a mere experimental artifact happened by Western blotting analysis. Instead, further experiment on this subject probably will provide us more fruitful result as detected in other invertebrates including insects.

Inhibitory Effect of Eurya emarginata on the Production of Pro-inflammatory Cytokines in Murine Macrophage RAW264.7 (Murine Macrophage RAW 264.7 세포에서 우묵사스레피에 의한 염증성 사이토카인 억제효과)

  • 박수영;이혜자;현은아;문지영;앙홍철;이남호;김세재;강희경;유은숙
    • YAKHAK HOEJI
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    • v.47 no.5
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    • pp.311-318
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    • 2003
  • Eurya emarginata (Thunb.) Makino (Theaceae) is distributed in coastal areas of island. The leaves of Eurya are used in the traditional medicine of the coastal areas of jeju island with the aim of diuresis or to treat ulcers. Nevertheless, there are few reports on the biological activity and constituents of E. emarginata. In this study, we investigated the pharmacological activity of the solvent extracts of E. emarginata on the several inflammatory markers (TNF-$\alpha$, IL-1$\beta$, IL-6, NO, iNOS and COX-2). Also we examined the antioxidizing effect of the solvent extracts by determination of DPPH radical-scavenging activity. Among the solvent fractions, EtOAc and BuOH extracts showed potent radical scavenging activity (RC$_{50}$=10.9 and 12.7 respectively). The subtractions of EF 5-4-6-3-2 and BF 1 potentially inhibited the mRNA expression of pro-inflammatory cytokines (IL-1$\beta$, IL-6 and TNF-$\alpha$) at the concentration of 100 $\mu\textrm{g}$/mι. Also the fractions inhibited the mRNA expression of pro-inflammatory cytokines (IL-1$\beta$, IL-6 and TNF-$\alpha$) and protein expression of iNOS and COX-2 at the concentration of 100 $\mu\textrm{g}$/mι. And then, the inhibition of iNOS was correlated with the decrease of nitrite level. These results suggest that E. emarginata may have anti-inflammatory activity through the inhibition of pro-inflammatory cytokines, iNOS and COX-2.2.