• 농업과학연구
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• 제46권3호
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• pp.579-589
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• 2019

Due to the ban on the use of antibiotics, interest has been increasing for the development of therapeutic agents to treat various diseases using natural resources. Osthole, a natural coumarin compound used in traditional Chinese medicines, exerts an anti-inflammatory effect, but its effects in cows remain unknown. In this study, the effect of osthole on lipopolysaccharide (LPS)- or concanavalin-A (Con-A)- stimulated peripheral blood mononuclear cells (PBMCs) was assessed. Jugular venous blood was collected from Korean calves, and PBMCs were isolated. They were then used to study the immune response of PBMCs to treatment with osthole and LPS or Con-A for 72 h by measuring inflammatory cytokines including tumor necrosis factor-${\alpha}$ ($TNF-{\alpha}$) and interferon-${\gamma}$ ($IFN-{\gamma}$). Osthole significantly inhibited the mRNA secretion of $TNF-{\alpha}$ and $IFN-{\gamma}$ in a dose-dependent manner. Therefore, osthole inhibited LPS- or Con-A- induced $TNF-{\alpha}$ and Con-A-induced $IFN-{\gamma}$ production significantly in dose-dependent manner. These results clearly suggest that osthole inhibited the LPS- or Con-A- stimulated upregulation of pro-inflammatory cytokines in a dose-dependent manner, without causing obvious cytotoxic effects. Osthole could also protect cows from LPS- or Con-A- induced endotoxin shock, possibly by inhibiting the production of pro-inflammatory cytokines, which suggests that osthole might be a novel therapeutic agent for the prevention of inflammatory diseases.

• Journal of Korean Neurosurgical Society
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• 제29권4호
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• pp.477-484
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• 2000

Objective : Despite advances in the understanding of tumor biology and the tumor immunology, there has been no effective treatment. The Intercellular adhesion molecule-1(ICAM-1) has been shown to be important in interaction involving cells of the immune system and to be upregulated in a number of cell culture systems by cytokines, including immune interferon($IFN-{\gamma}$) and tumor necrosis $factor-{\alpha}$($TNF-{\alpha}$). ICAM-1 has been identified as one of the ligands for lymphocyte function-associated antigen-1(LFA-1). The effectiveness of various cytokines to ICAM-1 induction on cultured human glioblastoma cell lines and potential efficacy of immunotherapy were studied. Method : Human glioblastoma cell lines, U-251 MG, U-373 MG were trypsinized and suspended at $1{\times}10^5cells/ml$ and grown on 8 well chamber slide, the cells were incubated in 0.3ml medium alone or medium containing $IFN-{\gamma}$(1000U/ml) or $TNF-{\alpha}$(250U/ml) or $IFN-{\gamma}$ plus $TNF-{\alpha}$ for 6, 12, 24, 48 and 72 hours. The coverslip were then removed and stained with a 1/30 dilution of anti-ICAM-1 antibody. Result : Surface antigen expression of ICAM-1 was increased by incubating glioblastoma cell lines with $IFN-{\gamma}$ and $TNF-{\alpha}$. Combined effect of $IFN-{\gamma}$ and $TNF-{\alpha}$ has induced more ICAM-1 expression on glioblastoma cell lines. Upregulation of ICAM-1 expression in an established glioblastoma cell line was of greater magnitude and more rapid following incubation with $IFN-{\gamma}$ plus $TNF-{\alpha}$. Surface antigen expression of ICAM-1 was increased for up to 48 hours after cytokine treatment on both cell lines(p<0.05). There was no difference on both cell lines(p>0.05). Conclusion : The results of the present study indicate that ICAM-1 expression in glioblastoma cell lines, U-251 MG and U-373 MG, are induced and enhanced after treatment with $IFN-{\gamma}$ and $TNF-{\alpha}$. Combined effect of $IFN-{\alpha}$ and $TNF-{\gamma}$ is stronger and more rapid than $IFN-{\gamma}$ or $TNF-{\alpha}$ alone.

• Archives of Pharmacal Research
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• 제20권5호
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• pp.396-403
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• 1997

In order to direct the form of the immune response in an antigen-specific manner, we constructed a fusion protein (OVA/IL12) that contained the T cell-dependent antigen, ovalbumin (OVA), covalently linked to murine interleukin-12 (IL-12). The OVA/IL12 protein was produced in a baculovirus expression system and was purified by anti-OVA immunoaffinity chromatography. The purified OVA/ILI2 protein displayed potent IL-12 bioactivity in an IL-12 proliferation assay. BALB/c mice immunized with the OVA/IL12 protein produced increased quantities of anti-OVA IgG2a antibody compared with mice immunized with recombinant OVA alone. Lymph node cells from the immunized mice with the OVA/IL12 protein produced large amounts of IFN-,Y when restimulated in vitro with OVA, while those from mice immunized with the OVA protein produced little or no IFN-.gamma.. In contrast, immunization with a mixture of OVA and free recombinant IL-12 also induced IFN-.gamma. production, which was not OVA-specific. These studies indicate that the OVA/IL12 fusion protein can induce OVA-specific, Th1-dominated immune responses, and that the covalent linkage of OVA and IL-12 confines the effect of IL-12 to OVA-specific cells.

• 대한본초학회지
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• 제22권3호
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• pp.47-55
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• 2007

Objectives : This study was carried out to know the effect of Cordyceps sinensis(CS) on the immune inflammatory responses of spleen cells and function or immunocytes of the normal mouse. Methodes: We investigated effects of Cordyceps sinensis(CS) on normal immunocytes, gene expression of IL-12, IFN-$\gamma$ and surface-receptor expression of $CD3_{\epsilon}+$, CD4+, CD8+ and CD19+ cells were measured by PCR and FACS. Results : CS activated adhisive splenic cells morphologically as compared with the control group in the normal spleen cells of BALB/C mice. CS enhanced gene expression of interleukin-12 and interferon-gamma in a dose-dependent manner in the normal spleen cells of BALB/C mice. CS reduced the number of activating cells and surface-receptor expression of CD4+, CD8+ and CD19+. Conclusion : Cordyceps sinensis will be used as a stable remedium in the auto-immune diseases.

• Natural Product Sciences
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• 제10권6호
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• pp.344-346
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• 2004

Eight phenolic compounds (1-8) which were isolated from the barks of Ulmus macrocarpa were evaluated for their inhibitory activities on nitric oxide (NO) and prostagrandin $E_2$ (COX-2) production in $interferon-{\gamma}\;(INF-{\gamma})$ and lipopolysaccharide (LPS)-activated RAW 264.7 cells in vitro. NO and COX-2 levels were moderately reduced by the addition of compounds (1-8). Among them 3,4,5,6,7 and 8 inhibited NO production in a dose dependent manner with an $IC_{50}$ of 92.2, 97.3, 36.1, 43.5, 32.8, 39.4 and 37.1 ${\mu}g/ml$, respectively (positive control, L-NMMA; 36.4 ${\mu}g/ml$), and 3,4,5,6,7 and 8 reduced the COX-2 level in a dose dependent manner with an $IC_{50}$ of 43.2, 24.8, 24.8, 33.4, 44.8 and 22.7 ${\mu}g/ml$, respectively (positive control, indomethacin; 23.4 ${\mu}g/ml$). These results suggest that the phenolic compounds may be developed as potential anti-inflammatory and cancer chemopreventive agents.

• Journal of Ginseng Research
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• 제29권2호
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• pp.80-85
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• 2005

Antiallergic and antipsoriatic effects of korean Red Ginseng (KRG, steamed root of panax ginseng C.A. Meyer, Family Araliaceae) were measured. Orally administered KRG water extract potently inhibited passive cutaneous anaphylaxis (PCA). KRG water extract also showed the potent inhibition in oxazolone-induced mouse dermatitis, and suppressed mouse ear swelling by $39\%$ at 16 days at a dose of $0.1\%$. KRG water extract reduced the levels of mRNA of cyclooxygenase (COX)-2, $IL-1\beta$, $TNF-\alpha$ and $INF-\gamma$ increased in oxazolone-applied mouse ears, however, did not inhibit that of IL-4. KRG water extract also inhibited iNOS and COX-2 mRNA expression level of RAW264.7 cell induced by lipopolysaccharide. Based on these findings, we suggest that KRG can improve atopic and contact dermatitis by the regulation of $ IL-1\beta$ and $TNF-\alpha$ produced by macrophage cells and $interferon-\gamma$ produced by Th1 cells.

• Advances in Traditional Medicine
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• 제10권4호
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• pp.310-318
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• 2010

Verbena officinalis (Verbenaceae) has been used as herbal medicine or health supplement in both Western and Eastern countries for centuries. In the present study, we examined the anti-inflammatory and antioxidant activities of the methylene chloride fraction of V. officinalis (VMC). To elucidate the anti-inflammatory properties of VMC, we investigated the inhibition effects of nitric oxide production in interferon-gamma (IFN-$\gamma$) and lipopolysaccharide-stimulated mouse peritoneal macrophages. VMC suppressed nitric oxide production, inducible nitric oxide synthase and cyclooxygenase-2 expression dose-dependently without notable cytotoxicity. In various radical scavenging assays, VMC exhibited strong scavenging effect on DPPH radical, superoxide radical, nitric oxide radical and 2,2'-azino-bis(3-ethylbenzthiazoline-6-sulphonic acid) radical. VMC also showed potent reducing power. These findings strongly suggest that VMC may be beneficial in oxidative stress-mediated inflammatory disorders.

• Rapid Communication in Photoscience
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• 제2권2호
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• pp.46-51
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• 2013

This study reports a fiber-optic sensor detecting biomolecule by simultaneously monitoring localized surface plasmon resonance (LSPR) from gold nanoparticles (Au NPs) of ca. $50{\pm}5$ nm attached on one end of optical fiber and surface enhanced Raman scattering (SERS) of the reporter molecules adsorbed on the gold surfaces as an additional sensing tool. The sensor was fabricated by immobilizing Au NPs on one end of an optical fiber by chemical reaction. LSPR and SERS signals of the sensor were measured using various refractive indices solutions. Finally, the sensor was applied to observe real-time LSPR sensor-gram and SERS spectra of the reporter molecule of 4-aminothiphenol during the antibody-antigen reaction of interferon-gamma (IFN-${\gamma}$) as a proof-concept experiment of biological applications.

• Asian Pacific Journal of Cancer Prevention
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• 제17권7호
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• pp.3077-3084
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• 2016

Various beneficial effects have been described for fermented papaya preparation (FPP: SAIDO-PS501) based on its anti-oxidative and anti-inflammatory functions. The present study was designed to determine the effects of FPP on carcinogenesis in vivo, and immunomodulatory function in vitro. Mice were injected with RL male 1 cells subcutaneously or 3-methylcholantherene (MCA) intravenously to induce cancer and orally or intraperitoneally treated with FPP solution. Human peripheral blood mononuclear cells (PBMC) were obtained from healthy volunteers and patients with atopic dermatitis, treated with FPP, and subjected to measurement of cytokine production and changes in Foxp3-expressing regulatory T cell (Treg) stimulated with phytohemagglutinin (PHA). Administration of FPP suppressed tumor size and the incidence of malignancy. In vitro, treatment of PBMC with FPP induced IL-$1{\beta}$, $TNF{\alpha}$ and $IFN{\gamma}$ production. Moreover, FPP suppressed proliferation of PHA-stimulated Foxp3-expressing Treg. These results suggest that FPP has chemotherapeutic properties.

• 생약학회지
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• 제36권4호통권143호
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• pp.338-343
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• 2005

Inflammatory mediators such as interleukin-1 (IL-1), tumor necrosis $factor-{\alpha}\;(TNF-{\alpha}),\;interferon-{\gamma}\;(IFN-{\gamma})$ and lipopolysaccharide (LPS) are thought to play major roles in joint diseases such as a rheumatoid arthritis (RA), and there is considerable evidence playing a role for these cytokines in osteoarthritis (OA). Therefore, we have studied the effects on anti-inflammation and analgesic by ethyl acetate fraction from 70% ethanol extract of Artemisia capillaries (EAC). As a positive control, apigenin, which is known as an anti-inflammatory agent as an iNOS inhibitor, was used and showed the dose-dependent inhibitory effect. EAC showed strong inhibitory efficacy against cytokine-induced proteoglycan degradation, $PGE_2$ production, nitric oxide (NO) production, and matrix-matalloproteinases (MMPs) expression in rabbit articular chondrocyte. In the writhing test induced by acetic acid, EAC $(200{\sim}400\;mg/kg)$ exhibited a dose-dependent inhibition of writhing. The results indicate that EAC have anti-inflammatory and analgesic activities, and could be a good herbal medicine candidate for curing of RA and/or OA.