• Title/Summary/Keyword: Inhibition ELISA

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Pro-inflammatory Cytokine Production Inhibitory Effects of Frankincence in Murine Macrophage (마우스의 대식세포에서 프랑킨센스의 염증성 사이토카인 분비 억제작용)

  • Park, Jeong-Sook
    • Journal of the Korea Convergence Society
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    • v.8 no.1
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    • pp.239-243
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    • 2017
  • This study aims to demonstrate the inhibitory effect of proinflammatory cytokines by using Frankinsense. The present data was designed to determine the production of the frankincence on pro-inflammatory factors such as $TNF-{\alpha}$ and $IL-1{\beta}$ in lipopolysaccharide(LPS) stimulated RAW264.7 macrophages cell. The cell toxicity was identified by CellTiter 96 AQueous One solution cell proliferation assay. To evaluate of anti-inflammatory effect of frankincence, pro-inflammatory cytokines were measured by ELISA kit. As a result, the frankincence reduced NO and $TNF-{\alpha}$ production without cytotoxicity. As a result, Francincense was not cytotoxic at 10 ug / ml-1000 ug / ml and significantly inhibited the proinflammatory cytokines $TNF-{\alpha}$ and $IL-1{\beta}$. The secretion inhibition effect of proinflammatory cytokine is believed to be applicable to various physiological activity data and functional materials to demonstrate the anti - inflammatory properties of frankincense.

Effects of Haedokgumhwa-san Water Extracts on LPS-induced Inflammatory Response in Macrophage (해독금화산 물추출물이 LPS로 유도된 대식세포의 염증반응에 미치는 영향)

  • LIM, Jae-Soo;KANG, Ok-Hwa;SEO, Yun-Soo;KWON, Dong-Yeul
    • The Korea Journal of Herbology
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    • v.30 no.5
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    • pp.67-74
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    • 2015
  • Objectives : TheHaedokgumhwa-sanwater extract (HDKHS) is used in Korea, Japan and China as a traditional therapeutic agent to cure an infectious disease. But its study is not enough. Therefore, the present study focused on the elucidation of HDKHS to investigate the anti-inflammatory effects and to established the possible mechanisms involved in its action on LPS-stimulated immune response in murine macrophages.Methods : Inflammatory status was induced by LPS and measured by increasement of inflammatory mediators. LPS induced secretions of NO and PGE2in RAW 264.7 cells were measured using griess reagent and enzyme-linked immunosorbent assay (ELISA) kit respectively. production of IL-6 was examined using ELISA kit and expression of IL-6 mRNA was measured by RT-PCR method. To investigate the effects of HDKHS on inflammatory mediators, such as iNOS, COX-2 and MAPKs, western blot and RT-PCR were performed.Results : HDKHS significantly reduced production of NO and PGE2 which were induced by LPS. Also, activation of IL-6 was reduced both protein and mRNA levels. The expressions of inflammatory mediator include iNOS and COX-2 were decreased by pretreatment with HDKHS. futhermore The result showed HDKHS down-regulate the LPS induced phosphorylation of ERK 1/2, one of the MAPK family, which is considered as a main regulator of transmission from pathogens to nucleus of immune cells.Conclusions : Our results suggest that the anti-inflammatory properties of HDKHS may stem from the inhibition of pro-inflammatory mediators via suppression of initiation of inflammatory response by inhibiting MAPKs signaling pathways.

THE EFFECTS OF HONOKIOL AND MAGNOLOL ON THE ANTIMICROBIAL, BACTERIAL COLLAGENASE ACTIVITY, CYTOTOXICITY AND CYTOKINE PRODUCTION (Magnolol과 Honokiol이 항균, 교원질 분해효소, 세포독성 및 Cytokine생산에 미치는 영향)

  • Jang, Beom-Seok;Son, Seong-Heai;Chung, Chong-Pyoung;Bae, Ki-Hwan
    • Journal of Periodontal and Implant Science
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    • v.23 no.1
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    • pp.145-158
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    • 1993
  • The oral microbiota such as P. gingivalis, P. intermedia and A. actinomycetemcomitans play a primary role in the initiation and progression of the periodontal disease. The purpose of this study was to evaluate the antimicrobial effects and inhibitory effects of honokiol and magnolol on the bacterial collagenase activity, cytotoxicity and cytokine production of periodontopathic microorganisms. The antimicrobial activities of honokiol and magnolol was evaluted with minimum inhibition concentration. Honokiol was more active than magnolol, but less than chlorhexidine on antimicrobial activity. The inhibitory effects of magnolol and honokiol on the collagenolytic activity and cytotoxicity were evaluated using a Collagenokit CLN-100 and rapid colorimetric assay (MTT method) for cellular growth and survival of gingival fibroblast and periodontalligament cell and $[^3H]-thymidine$ incorporation for the gingival epithelial cell. The inhibitory effects on the collagenolytic activity was the highest in chlorhexidine, and the lowest in magnolol. Magnolol had the lowest cytotoxic effect and chlorhexidine had the highest. The inhibitory effects on cytokine production was evaluated using $interleukin-1{\beta}$ ELISA kit (Cistron Biotech.), IL-6, $TNF-{\alpha}$ ELISA kit (Genzyme) and inhibitory effects were higher than bacterial LPS and there is no difference among the honokiol, magnolol and chlorhexidine. From these results, the antimicrobial and antienzymatic activities of honokiol and magnolol were seemed to inhibit bacterial growth and enzyme activities with lesser cytotoxic activities. Therefore, it was suggested that honokiol and magnolol are very effective antimicrobial agents on periodontal pathogens.

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Effects of Mix-1 on Anti-CD40 Antibody and Recombinant IL4- Induced Cytokine Production and Immunoglobulin E in Highly Purified Mouse B Cells

  • Kim Jung Hwan;Choi Sun Mi;Lee Yong Gu;Namgoong Uk;Kim Dong Hee
    • Journal of Physiology & Pathology in Korean Medicine
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    • v.18 no.6
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    • pp.1869-1880
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    • 2004
  • In the oriental medicine, a mixture of herbs has been commonly used as important components to control allergic and inflammatory diseases. In the present study, we prepared a mixture of Dictamni Radicis Cortex(Baiksunpee), Houttuyniae Herba(Uhsungcho), and Aurantii Immaturus Fructus(Jisil) to examine its anti-allergic effects in activated mouse splenic cells and found that Mix-1 is involved in regulating levels of B cell activating factors (CD23 and CD11a), IL-1β, IL-6, IL-10, TNF-α, and 1gE as well as HRF expression. It was observed that Mix-1 did not have cytotoxic effects on mLFC. Mix-1 showed inhibition of CD23 and CD11 alpaha expression in mouse B cells, and also decreased the production of IL-6, TNF-α, and 1gE. Both RT-PCR and ELISA analyses indicated that IL-6 and TNF alpha production were regulated at the gene expression level. In contrast, IL-10 mRNA and protein levels were increased in activated B cells by Mix-1 treatment. We also found that Mix-1 inhibited B cell proliferation and inhibited histamine releasing factor(HRF) expression, suggesting its inhibitory effect on histamine secretion. These data indicated that Mix-1 has an anti-allergic effect in activated macrophages and further suggest the possible application of Mix-1 as a therapeutic agent for the treatment of allergy-related diseases.

The Comparison of a Conformational Alteration of Ovalbumin Irradiated with Radiation of Gamma and Electron Beam (감마선 및 전자선 조사에 따른 Ovalbumin의 구조 변화 비교)

  • 변명우;서지현;김재훈;김미리;오남순;이주운
    • Journal of the Korean Society of Food Science and Nutrition
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    • v.33 no.7
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    • pp.1169-1174
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    • 2004
  • This study was carried out to assess the effects of electron beam (EB) radiation on the conformational changes of ovalbumin (OVA), based on the early works using gamma irradiation. The applied doses of OVA used were 3,5,7, and 10 kGy, respectively. The conformational alterations were measured with SDS-PAGE, GPC-HPLC, and competitive indirect enzyme-linked immunosorbent assay (Ci-ELISA) using monoclonal anti-OVA IgG antibody. Irradiation caused a degradation and/or an aggregation of OVA molecule. Immunochemical structures of irradiated OVA were altered by irradiation. Effects of gamma and electron beam radiation were similar at the same absorbed doses. These results may be used for inhibition of food allergy and development of immunogen with EB radiation.

Preventive Effects of a Major Component of Green Tea, Epigallocathechin-3-Gallate, on Hepatitis-B Virus DNA Replication

  • Karamese, Murat;Aydogdu, Sabiha;Karamese, Selina Aksak;Altoparlak, Ulku;Gundogdu, Cemal
    • Asian Pacific Journal of Cancer Prevention
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    • v.16 no.10
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    • pp.4199-4202
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    • 2015
  • Background: Hepatitis B virus infection is one of the major world health problems. Epigallocatechin-3 gallate is the major component of the polyphenolic fraction of green tea and it has an anti-viral, anti-mutagenic, anti-tumorigenic, anti-angiogenic, anti-proliferative, and/or pro-apoptotic effects on mammalian cells. In this study, our aim was to investigate the inhibition of HBV replication by epigallocatechin-3 gallate in the Hep3B2.1-7 hepatocellular carcinoma cell line. Materials and Methods: HBV-replicating Hep3B2.1-7 cells were used to investigate the preventive effects of epigallocatechin-3 gallate on HBV DNA replication. The expression levels of HBsAg and HBeAg were determined using ELISA. Quantitative real-time-PCR was applied for the determination of the expression level of HBV DNA. Results: Cytotoxicity of epigallocathechin-3-gallate was not observed in the hepatic carcinoma cell line when the dose was lower than $100{\mu}M$. The ELISA method demonstrated that epigallocatechin-3 gallate have strong effects on HBsAg and HBeAg levels. Also it was detected by real-time PCR that epigallocatechin-3 gallate could prevent HBV DNA replication. Conclusions: The obtained data pointed out that although the exact mechanism of HBV DNA replication and related diseases remains unclear, epigallocatechin-3 gallate has a potential as an effective anti-HBV agent with low toxicity.

Purification and Properties of Osteopontin from Bovine Milk (우유로부터 Osteopontin의 분리.정제 및 특성에 관한 연구)

  • Choi, K.W.;Kim, D.W.;Lee, S.W.
    • Journal of Animal Science and Technology
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    • v.45 no.3
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    • pp.491-498
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    • 2003
  • The purpose of this study is to observe purification and properties of osteopontin(OPN) from bovine milk. The purification of osteopontin from bovine milk was performed by using ion-exchange and hydrophobic chromatography. SDS-PAGE analysis revealed that the protein migrated at Mw. 60,000. NH2-terminal sequence analysis of the first seven amio acids revealed the protein to be identical to that previously reported for bovine OPN. 35-wk-old chickens, including 3 Single Comb White Leghorn (SCWL), were used to produce egg yolk antibody(IgY) against OPNas a antigen. However, the anti-OPN antibody activities determined by ELISA. Immunological assy of OPN in milk was performed using radial immunodiffusion test based on the standard curve of pure OPN. The radial precipitation lines of four different milk samples indicated that the concentrations of OPN in the milk samples were within the range of 31.7 to 39.7${\mu}g$/ml. On inhibition with OPN on precipitation of calcium phosphate, OPN was slightly higher than casein phosphopeptide(CPP) and poly-glutamic acid.

Inhibitory Effects of Carex pumila Extracts on MMP-2 and MMP-9 Activities in HT-1080 Cells (HT-1080 세포주에서 좀보리사초 추출물의 MMP-2와 MMP-9 활성 억제효과)

  • Kim, Junse;Kong, Chang-Suk;Seo, Youngwan
    • Ocean and Polar Research
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    • v.40 no.4
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    • pp.249-257
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    • 2018
  • Matrix metalloproteinases (MMPs) are associated with the invasion and metastasis of malignant tumors composed of cancer cells in an increased state of expression. This study evaluates the inhibitory effect of Carex pumila on MMP-2 and MMP-9 activity in phorbol-12-myristate-13-acetate (PMA)-stimulated HT-1080 human fibrosarcoma cells using gelatin zymography, MMPs enzyme-linked immunosorbent assay (ELISA), reverse transcription-polymerase chain reaction (RT-PCR) and Western blot assay. C. pumila was extracted twice with dichloromethane ($CH_2Cl_2$) and methanol (MeOH). Treatment with $CH_2Cl_2$ extract and MeOH extract in PMA-stimulated HT-1080 cells effectively reduced the production of MMP-2 and 9. Also, the combined crude extracts ($CH_2Cl_2$ and MeOH) significantly inhibited the enzymatic activities and the expression of MMP-2 and MMP-9 in mRNA and protein levels. The combined crude extracts were partitioned between $CH_2Cl_2$ and water. The organic layer was further fractionated with n-hexane, 85% aqueous methanol (85% aq.MeOH) and the aqueous layer was separated into n-butanol and water, successively. Of the fractions, 85% aq.MeOH fraction showed the highest inhibitory activity of MMP-2 and MMP-9 in gelatin zymography and MMP ELISA kit. Furthermore, 85% aq.MeOH fraction most significantly suppressed cell migration. In RT-PCR and Western blot assay, n-butanol and 85% aq.MeOH fractions exerted the greatest inhibition on mRNA and protein expression of MMP-2 and MMP-9, respectively. As a result, C. pumila can be used as a good anti-invasive agent source.

Effect of Orostachys japonicus on Apoptosis and Autophagy in Human monocytic leukemia Cell line THP-1 via Inhibition of NF-κB and Phosphorylation of p38 MAPK (와송이 인간 백혈병 세포주 THP-1에서 NF-κB 활성 억제와 p38 활성을 통해 세포사멸과 자가포식에 미치는 영향)

  • Joo, Seonghee;Jang, Eungyeong;Kim, Youngchul
    • The Journal of Korean Medicine
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    • v.40 no.2
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    • pp.35-50
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    • 2019
  • Objectives: Orostachys japonicas (O. japonicus) has been known for its anti-tumor effect. In the present study, it was investigated whether O. japonicus EtOH extracts could induce apoptosis and autophagy which are part of the main mechanism related to anti-tumor effect in THP-1 cells. Methods: Cells were treated with various concentrations of O. japonicus EtOH extracts ($0-300{\mu}g/ml$) for 24, 48, and 72h. Cell viability was evaluated by MTS/PMS assay and apoptosis rate was examined by flow cytometry and ELISA assay. The mRNA expression of apoptosis-related genes (Bcl-2, Mcl-1, Survivin, Bax) and autophagy-related gene (mTOR) was evaluated using real-time PCR. The protein expression of Caspase-3, Akt, LC3 II, Beclin-1, Atg5, $NF-{\kappa}B$, p38, ERK was evaluated using western blot analysis. Results: O. japonicus EtOH extracts inhibited cell proliferation and apoptosis rate was increased in both flow cytometry and ELISA assay. Bcl-2, Mcl-1, Survivin (anti-apoptosis factors) mRNA expressions were decreased and Bax (pro-apoptosis factor) mRNA level was increased. mTOR mRNA expressions was decreased and LC3 II protein expressions was increased. Activation of $NF-{\kappa}B$ was decreased and phosphorylation of p38 was increased. Conclusion: O. japonicus is regarded to inhibit cell proliferation, to induce apoptosis and to regulate autophagy-related genes in THP-1 cells via $NF-{\kappa}B$ and p38 MAPK signaling pathway. This suggests O. japonicus could be an effective herb in treating acute myeloid leukemia.

Anti-melanogenesis Active Constituents from the Extracts of Carpinus turczaninowii Leaves (소사나무 잎 추출물 유래 멜라닌합성 저해 활성 성분)

  • Kang, Ji Mi;Kim, Jung Eun;Lee, Nam Ho
    • Journal of the Society of Cosmetic Scientists of Korea
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    • v.43 no.1
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    • pp.35-41
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    • 2017
  • Melanin synthesis inhibition activities were investigated for the extracts prepared from the leaves of Carpinus turczaninowii (C. turczaninowii) by using B16F10 melanoma cells. As a result, the ethanol extract ($100{\mu}g/mL$) showed 72.2% inhibition activities without cell toxicities in MTT assays. For the solvent fractions (n-hexane, ethyl acetate, n-butanol, water), the most potent activities were observed at the ethyl acetate fraction. To isolate the active constituents, the ethyl acetate fraction was further purified to afford four compounds; ethyl gallate (1), quercetin rhamnose (2), kaempferol rhamnose (3) and quercetin galloylrhamnose (4). The identification of the isolates was made by spectroscopic data including NMR spectra, and all of the compounds 1-4 were isolated for the first time from the leaves of C. turczaninowii. Anti-melanogenesis activities were studied for the isolates 1-4, and the compound 4 was determined to decrease the melanin synthesis dose-dependently without causing cell toxicities. ELISA measurement indicated that the isolate 4 decreased the contents of cell tyrosinase, a critical enzyme in melanogenesis. Based on these results, the extracts of C. turczaninowii were found to be applicable as whitening ingredients in cosmetic formulations.