• Title/Summary/Keyword: Interleukin 6

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Anti-inflammatory effect of the water fraction from hawthorn fruit on LPS-stimulated RAW 264.7 cells

  • Li, Chunmei;Wang, Myeong-Hyeon
    • Nutrition Research and Practice
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    • v.5 no.2
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    • pp.101-106
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    • 2011
  • The hawthorn fruit (Crataegus pinnatifida Bunge var. typica Schneider) is used as a traditional medicine in Korea. The objective of this study was to understand the mechanisms of the anti-inflammatory effects of the water fractionated portion of hawthorn fruit on a lipopolysaccharide (LPS)-stimulated RAW 264.7 cellular model. The level of nitric oxide (NO) production in the water fraction and LPS-treated RAW 264.7 cells were determined with an ELISA. The cytotoxicity of the water fraction and LPS was measured with an MTT assay. Expression of nitric oxide synthase (iNOS), cyclooxygenase-2 (COX-2), tumor necrosis factor (TNF)-${\alpha}$, interleukin 6 (IL-6), and interleukin $1{\beta}$ (IL-$1{\beta}$) mRNA were analyzed with a reverse transcription polymerase chain reaction (RT-PCR). The water fraction of hawthorn fruit was determined to be safe and significantly inhibited NO production in LPS-stimulated RAW 264.7 cells and suppressed COX-2, (TNF)-${\alpha}$, IL-$1{\beta}$, and IL-6 expression. The observed anti-inflammatory effects of the water fraction of hawthorn fruit might be attributed to the down-regulation of COX-2, (TNF)-${\alpha}$, IL-$1{\beta}$, and IL-6 expression in LPS-stimulated RAW 264.7 cells.

The immune-enhancement effect by Falun Gong cultivation

  • Jeong, Hyun-Ja;Kang, Ji-Seok;Kim, Hyung-Min;Lee, Ki-Nam
    • Advances in Traditional Medicine
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    • v.2 no.2
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    • pp.113-118
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    • 2002
  • Falun Gong (FG) is an advanced system of cultivation and practice, which is beneficial for both mind and body. In this study we investigated the effects of FG on the production of cytokines in FG practitioner (FGP). To study whether plasma cytokines levels were affected by FG, their levels were analyzed. The amount of $interferon-{\gamma}$ $(IFN-{\gamma})$, interleukin (IL)-2, IL-4 and IL-6 (2.5-fold for $IFN-{\gamma}$, 1.2-fold for IL-2, 2.1-fold for IL-4 and 2.5-fold for IL-6, respectively) were significantly higher in the FGP group than normal group (P<0.05). Peripheral blood mononuclear cells obtained from normal healthy control and FGP were cultured for 24 h in the presence or absence of lipopolysaccharide. The amount of $IFN-{\gamma}$, IL-2, IL-4 and IL-6 in culture supernatant was quantified. However, there were no significant differences in the level of the same cytokines between the normal and FGP group. These data suggest that FG cultivation may contribute to immune-enhancement in vivo.

A Probiotic Preparation Duolac-Gold Ameliorates Dextran Sulphate Sodium-induced Mouse Colitis by Downregulating the Expression of IL-6

  • Yoon, Hyunho;Yoon, Yeo-Sang;Kim, Min-Soo;Chung, Myung-Jun;Yum, Do-Young
    • Toxicological Research
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    • v.30 no.1
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    • pp.27-32
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    • 2014
  • Probiotics are live microorganisms that confer a health benefit on the host. Duolac-Gold is a mixture of seven probiotic bacteria containing three species of Bifidobacteria, two species of Lactobacillus, and Streptococcus thermophilus. The aim of this study was to assess the anti-inflammatory effects of Duolac-Gold in an inflammatory bowel disease (IBD) mouse model. IBD was induced by administering 1.5% dextran sulfate sodium (DSS) for 10 days. After induction of DSS-induced colitis, Duolac-Gold was orally administered at three different concentrations. Interestingly, Duolac-Gold treatment accelerated IBD healing, and anti-inflammatory activity was assessed by weight loss, length of the colon, and a microscopic damage score by histology. The expression of inflammatory related cytokines was measured in colon tissues and serum. Of these cytokines, the expression of interleukin-6 decreased remarkably after Duolac-Gold treatment. Taken together, these results suggest that Duolac-Gold treatment is effective in IBD healing by regulating IL-6.

Modulatory Activity of Bifidobacterium sp. BGN4 Cell Fractions on Immune Cells

  • Kim Nam-Ju;Ji Geun-Eog
    • Journal of Microbiology and Biotechnology
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    • v.16 no.4
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    • pp.584-589
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    • 2006
  • Bifidobacteria has been suggested to exert health promoting effects on the host by maintaining microbial flora and modulating immune functions in the human intestine. We assessed modulatory effects of the different cell fractions of Bifidobacterium sp. BGN4 on macrophage cells and other immune cells from the spleen and Peyer's patches (PP) of mouse. Cell free extracts (CFE) of the BGN4 fractions induced well-developed morphological changes in the macrophages and increased the phagocytic activity more effectively than other fractions in the mouse peritoneal cells. Nitric oxide (NO) production was significantly reduced by both the cell walls (CW) and CFE in the cultured cells from the spleen and PP. The production of interleukin-6 (IL-6) and interleukin-10 (IL-10) was eminent in the spleen cells treated with experimental BGN4 cell fractions. However, in the PP cells, IL-6 was slightly decreased by the treatment with the whole cell (WC) and CW, whereas IL-10 was significantly increased by the treatment with the CW and CFE. These results suggest that different types of bifidobacterial cell fractions may have differential immunomodulatory activities depending on their location within the host immune system.

Structural characterization and anti-inflammatory activity of fucoidan isolated from Ecklonia maxima stipe

  • Lee, Hyo-Geun;Nagahawatta, D.P.;Liyanage, N.M.;Jayawardhana, H.H.A.C.K.;Yang, Fengqi;Je, Jun-Geon;Kang, Min-Cheol;Kim Hyun-Soo;Jeon, You-Jin
    • ALGAE
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    • v.37 no.3
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    • pp.239-247
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    • 2022
  • Enzyme-assisted hydrolysis is frequently used as a cost-effective and efficient method to obtain functional ingredients from bioresources. This study involved the enzyme-assisted hydrolyzation and purification of fucoidan from Ecklonia maxima stipe and the investigation of its anti-inflammatory activity in lipopolysaccharide (LPS)-induced RAW 264.7 cells. Fucoidans of Viscozyme-assisted hydrolysate from E. maxima (EMSFs) harvested in Jeju, Korea. Structural and chemical characterizations were performed using fourier transform infrared spectroscopy, scanning electron microscope, and monosaccharide analysis. Among fucoidans, EMSF6 was rich in fucose and sulfate and had a similar structural character to commercial fucoidan. EMSF6 showed a strong inhibitory effect on nitric oxide generation in LPS-induced RAW 264.7 cells and significantly decreased the production of LPS-induced pro-inflammatory cytokines, including interleukin-6, interleukin-1β, and tumor necrosis factor α. The anti-inflammatory potential of EMSF6 was mediated through the downregulation of inducible nitric oxide synthase and cyclooxygenase-2 expression. Thus, fucoidans from E. maxima stipe are promising candidates for functional food products.

Studies on the Immunomodulating Effects of Polysaccharide Extracted from Ganoderma lucidum on Macrophage (영지버섯 다당체의 마우스 대식세포 면역증강 효과)

  • 김성환;김을상
    • Journal of the Korean Society of Food Science and Nutrition
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    • v.26 no.1
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    • pp.148-153
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    • 1997
  • The immunomodulating effects of polysaccharide extracted from Ganoderma lucidum(PSG) on macrophage were evaluated using murine macrophage cell line ATCC TIB 71 cells or peritoneal exudate cells of BALB/c mice. The cell were incubated with various content of PSG for 24 hours at 0.5% $CO_2$ incubator under varying experimental conditions. PSG stimulated the non-specific activites of macrophage such as mitotic activity and expression of surface interleukin-2 receptors by dose-dependent pattern with statistic significance(p<0.001): however, PSG had little immunoregulatory effects on cytokines derived from peritoneal macrophages of BALB/c mice. There were no significant changes in the se-cretion of interleukin-6, interleukin-6, or tumor necrosis factors(Tn) of PSG treated cells compared to the control group. But PSG increased secretion of cytokines(IL-1 and TNF) when the cells were primed and trigged with BCG and IFN-${\gamma}$.

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Systemic Analysis of Antibacterial and Pharmacological Functions of Anisi Stellati Fructus (대회향의 시스템 약리학적 분석과 항균작용)

  • Han, Jeong A;Choo, Ji Eun;Shon, Jee Won;Kim, Youn Sook;Suh, Su Yeon;An, Won Gun
    • Journal of Life Science
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    • v.29 no.2
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    • pp.181-190
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    • 2019
  • The purpose of this study was to acquire the active compounds of Anisi stellati fructus (ASF) and to analyze the genes and diseases it targets, focusing on its antibacterial effects using a system pharmacological analysis approach. Active compounds of ASF were obtained through the Traditional Chinese Medicine Systems Pharmacology (TCMSP) Database and Analysis Platform. This contains the pharmacokinetic properties of active compounds and related drug-target-disease networks, which is a breakthrough in silico approach possible at the network level. Gene information of targets was gathered from the UnitProt Database, and gene ontology analysis was performed using the David 6.8 Gene Functional Classification Tool. A total of 201 target genes were collected, which corresponded to the nine screened active compounds, and 47 genes were found to act on biological processes related to antimicrobial activity. The representative active compounds involved in antibacterial action were luteolin, kaempferol, and quercetin. Among their targets, Chemokine ligand2, Interleukin-10, Interleukin-6, and Tumor Necrosis Factor were associated with more than three antimicrobial biological processes. This study has provided accurate evidence while saving time and effort to select future laboratory research materials. The data obtained has provided important data for infection prevention and treatment strategies.

Serum Levels of IL-$1\beta$, IL-2 and IL-6 in Functional Gastrointestinal Disorders in Relation to Depression and Stressful Life Events (기능성 위장관 장애에서 혈청 IL-$1\beta$, IL-2, IL-6의 변화 : 우울증 및 스트레스와의 상관성)

  • Park, Si-Sung;Lee, Sang-Shin;Park, Moo-In;Koo, Ja-Young;Park, Je-Min;Kim, Myung-Jung
    • Korean Journal of Psychosomatic Medicine
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    • v.10 no.2
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    • pp.130-141
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    • 2002
  • Objectives : Stress induces alteration of gastrointestinal function in which interleukin (IL) and hypothalamo-pituitary-axis are involved. Depression again is associated with functional gastrointestinal disorders (FGID) and interleukins. The author attempted to look into the role of interleukins in the FGID also the association of depression and stress in this context. Methods : Entered were 20 patients with FGID, diagnosed by Rome IT criteria and 20 healthy controls. Depression was measured by Hamilton Rating Scale for Depression (HAM-D), and stress of the last one year by Schedule of Recent Experience (SRE). Serum levels of IL-$1\beta$, IL-2, IL-6 were measured by Enzyme-linked Immunosorbent Assay and serum cortisol by Fluorescence Polarization Immunoassay. The results were as follows : Results: 1) Serum levels of IL-$1\beta$, IL-2 were significantly lower in the patients with FGID than those in the controls, but level of IL-6 did not differ between two groups. 2) The patient group showed significantly higher level of serum cortisol as well as higher degrees of depression and stress. 3) Positive correlation was noted between depression and serum cortisol, and between depression and IL-2. A trend of negative correlation was seen between depression IL-$1\beta$. Positive correlation was noted between SRE and IL-6 and IL-6 and serum cortisol. Conclusions : It was concluded that FGID might be related to depression and stress. Changes of the interleukins might be involved with elevated cortisol level.

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The Effects of Anti-cancer and Immune Response of Lonicerae Flos Herbal-acupuncture (금은화약침(金銀花藥鍼)의 항암 및 면역반응에 관한 실험적 연구)

  • Park, Hee-Soo;Han, Jae-Sub
    • Journal of Acupuncture Research
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    • v.23 no.4
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    • pp.205-218
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    • 2006
  • Objectives : This study was performed to investigate the effects of anti-cancer and changes In immune response of Lonicerge Flos Herbal-acupuncture. Methods Experimental studies were evaluated through the anti-cancer and immune response activities such as, cell viability, BNA fragmentation, Apoptosis, survival time, pulmonary colonization, and productivity of interleukins & $interferon-{\gamma}$. In order to study the effects of anti-cancer and changes in immune response of Lonicerae Flos Herbal-acupuncture, the groups were divided into five groups ; Normal group(non treated group), Control A group(0.2ml Normal saline for oral administration), Control B group(administration of intramuscular injection with 0.2ml Lonicerae Flos Herbal-acupuncture solution), Acupuncture group(AT, administration of acupuncture at Chungbu(L1)), and Herbal-Acupuncture group(HAT, administration of Lonicerae Flos Herbal-acupuncture at Chungbu(L1)). Results : 1. Lonicerae Flos Herbal-acupuncture(>300mg/ml) could lead cancer cell to cell death. 2. Lonicerae Flos Herbal - acupuncture (40mg/ml) caused DNA cleavage. 3. Lonicerae Flos Herbal-acupuncture(400mg/ml) caused apoptosis in the cancer cell line. 4. In mouse survival time, all of experimental groups didn't show any significant compared to the control group. 5. In pulmonary colonization assay, Lonicerae Flos Herbal-acupuncture group was less than Control A group at 7 days after induction of cancer. 6. In comparison Control A group, there was significant decrease of Interleukin-2 level in Lonicerae Flos Herbal-acupuncture group. 7. In comparison Control group, there was decrease of Interleukin-4 level in the Acupuncture group. 8. In comparison Control group, there was decrease of Interleukin-10 level in the Acupuncture group. 9. In comparison Control group, there was significant increase of Interleukin-12 level in Acupuncture group and Lonicerae Flos Herbal-acupuncture group. 10. In comparison Control group, there was significant increase of $Interferon-{\gamma}$ level in Acupuncture group. Conclusion : According to above mentioned results, Lonicerae Flos Herbal- acupuncture is expected to be effective for anticancer and improvement in immune response.

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Intranasal Administration of Interleukin-1 Receptor Antagonist in a Transient Focal Cerebral Ischemia Rat Model

  • Lee, Jae Hoon;Kam, Eun Hee;Kim, Jeong Min;Kim, So Yeon;Kim, Eun Jeong;Cheon, So Yeong;Koo, Bon-Nyeo
    • Biomolecules & Therapeutics
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    • v.25 no.2
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    • pp.149-157
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    • 2017
  • The interleukin-1 receptor antagonist (IL-1RA) is a potential stroke treatment candidate. Intranasal delivery is a novel method thereby a therapeutic protein can be penetrated into the brain parenchyma by bypassing the blood-brain barrier. Thus, this study tested whether intranasal IL-1RA can provide neuroprotection and brain penetration in transient cerebral ischemia. In male Sprague-Dawley rats, focal cerebral ischemia was induced by middle cerebral artery occlusion (MCAO) for 1 h. The rats simultaneously received 50 mg/kg human IL-1RA through the intranasal (IN group) or intraperitoneal route (IP group). The other rats were given 0.5 mL/kg normal saline (EC group). Neurobehavioral function, infarct size, and the concentration of the administered human IL-1RA in the brain tissue were assessed. In addition, the cellular distribution of intranasal IL-1RA in the brain and its effect on proinflammatory cytokines expression were evaluated. Intranasal IL-1RA improved neurological deficit and reduced infarct size until 7 days after MCAO (p<0.05). The concentrations of the human IL-1RA in the brain tissue 24 h after MCAO were significantly greater in the IN group than in the IP group (p<0.05). The human IL-1RA was confirmed to be co-localized with neuron and microglia. Furthermore, the IN group had lower expression of $interleukin-1{\beta}$ and tumor necrosis $factor-{\alpha}$ at 6 h after MCAO than the EC group (p<0.05). These results suggest that intranasal IL-1RA can reach the brain parenchyma more efficiently and provide superior neuroprotection in the transient focal cerebral ischemia.