• Title/Summary/Keyword: CD production

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Suppressive Effect of Solanum Iyratum Aqueous Extract Via Down-regulation of $TNF-{\alpha}$ and $IFN-{\gamma}$ Production on Collagen-induced Arthritis in Mice

  • Kim, Seung-Hyung;Seo, Chang-Woo;Kim, Chang-Min;Kim, Yang-Jin;Lee, Boo-Kyun;Choi, Yong-Sun;Oh, Hwang;Yoon, Ho-Sok;Lee, Seon-Goo;Lee, Jang-Cheon;Lee, Young-Cheal
    • Journal of Physiology & Pathology in Korean Medicine
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    • v.21 no.5
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    • pp.1278-1284
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    • 2007
  • Solanum Iyratum Thunb (Solanaceae) has multiple applications in korean traditional medicine because of its cytotoxic, immunological and anti-inflammatory activities. However, no study on the anti-arthritic activity of Solanum Iyratum Thunb has been reported in vivo. Rheumatoid arthritis (RA) is a systemic autoimmune disease with chronic inflammation characterized by hyperplasia of synovial cells in affected joints, which ultimately leads to the destruction of cartilage and bone. Cytokine production were assessed during CIA(collagen-induced arthritis) model mice in lymph node (LN), in knee joint and spleen, using ELISA. DBA/1j mice were immunized with bovine type II collagen. After a second collagen immunization, mice were treated with Solanum Iyratum Thunb (SLT) orally at 400, 200 mg/kg once a day for 4 weeks. The severity of arthritis within the knee joints was evaluated by histological assessment of cartilage destruction and pannus formation. SLT significantly suppressed the progression of CIA and inhibited the production of TNF-alpha and IFN-gamma in serum and spleen cell culture supernatant. The erosion of cartilage was dramatically reduced in mouse knees after treatment with SLT. In conclusion, our results demonstrates that SLT significantly suppressed the progression of CIA. This action was characterized by suppression of arthritis index, cartilage erosion and synovial cell infiltration and the decreased production of $TNF-{\alpha}$, $IFN-{\gamma}$, CD4+, CD19+, CD3+/CD69+ cells (in lymph node), CD11b+/Gr-1 + (in knee joint).

Cholesterol Removal from Homogenized Milk with Crosslinked β-cyclodextrin by Adipic Acid

  • Han, Eun-Mi;Kim, Song-Hee;Ahn, Joungjwa;Kwak, Hae-Soo
    • Asian-Australasian Journal of Animal Sciences
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    • v.18 no.12
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    • pp.1794-1799
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    • 2005
  • The present study was carried out to develop crosslinking of $\beta$-cyclodextrin ($\beta$-CD) using adipic acid, and to determine the optimum conditions of different factors ($\beta$-CD concentration, mixing temperature, mixing time and mixing speed) on cholesterol reduction from homogenized milk. Crosslinked $\beta$-CD was prepared with adipic acid. When the milk was treated with different conditions, the cholesterol removal rate was in the range of 92.1 to 93.1% with 1% $\beta$-CD addition, which were not significantly different among treatments. After cholesterol removal from milk, the used crosslinked $\beta$-CD was washed for cholesterol dissociation and reused. For recycling study, the cholesterol removal rate in the first trial was 92.5%, which was mostly same as that using new crosslinked $\beta$-CD. With repeated ten time trials using same sample, 81.4% of cholesterol was removed from milk. Therefore, the present study indicated that the optimum conditions for cholesterol removal using crosslinked $\beta$-CD were 1% $\beta$-CD addition and 10 min mixing with 400 rpm speed at 5$^{\circ}C$ with over 90% cholesterol removal. In addition, crosslinked $\beta$-CD made by adipic acid resulted in the effective recycling efficiency.

Cholesterol Removal from Lard with Crosslinked ${\beta}$-Cyclodextrin

  • Kim, S.H.;Kim, H.Y.;Kwak, H.S.
    • Asian-Australasian Journal of Animal Sciences
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    • v.20 no.9
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    • pp.1468-1472
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    • 2007
  • The present study was carried out to determine the optimum conditions of different factors (ratio of lard to water, ${\beta}$-CD concentrations, mixing temperature, mixing time and mixing speed) on cholesterol reduction from lard by using crosslinked ${\beta}$-CD. Crosslinked ${\beta}$-CD was prepared with adipic acid. When the lard was treated under different conditions, the range of cholesterol removal was 91.2 to 93.0% with 5% crosslinked ${\beta}$-CD, which was not significantly different among treatments. In a recycling study, cholesterol removal with crosslinked ${\beta}$-CD in the first trial was 92.1%, which was similar to that with new crosslinked ${\beta}$-CD. In up to eight time trials, over 90% of cholesterol removal was found. The present study indicated that the optimum conditions for cholesterol removal using crosslinked ${\beta}$-CD were a 1:3 ratio of lard to water, 5% crosslinked ${\beta}$-CD concentration, $40^{\circ}C$ mixing temperature, 1 h mixing time and 150 rpm mixing speed. In addition, crosslinked ${\beta}$-CD made by adipic acid resulted in an effective recycling efficiency.

CD30-Mediated Regulation of Cell Adhesion Molecule Expression on Murine T Cells

  • Nam, Sang-Yun
    • IMMUNE NETWORK
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    • v.3 no.1
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    • pp.8-15
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    • 2003
  • Background: CD30 is a member of TNF receptor family and expressed on lymphocytes and other hematopoietic cells following activation as well as Hodgkin and Reed-Sternberg cells in Hodgkin's lymphoma. In this study, CD30-mediated regulation of cell adhesion molecule expression on normal activated mouse T cells was investigated. Methods: Mouse T cells were activated with anti-CD3 antibody for induction of CD30, which was cross-linked by immobilized anti-CD30 antibody. Results: High level of CD30 expression on T cells was observed on day 5, but only little on day 3 even under culture condition resulting in an identical T cell proliferation, indicating that CD30 expression requires a prolonged stimulation up to 5 days. Cross-linking of CD30 alone altered neither proliferation nor apoptosis of normal activated T cells. Instead, CD30 appeared to promote cell adherence to culture substrate, and considerably upregulated ICAM-1 and, to a lesser extent, ICAM-2 expression on activated T cells, whereas CD2 and CD18 (LFA-1) expression was not affected. None of cytokines known as main regulators of ICAM-1 expression on tissue cells (IL 4, $IFN{\gamma}$ and $IFN{\alpha}$) enhanced ICAM-1 expression in the absence of CD30 signals. On the other hand, addition of $NF-{\kappa}B$ inhibitor, PDTC (0.1 mM) completely abrogated the CD30-mediated upregulation of ICAM-1 expression, but not CD2 and ICAM-2 expression. Conclusion: This results support that CD30 upregulates ICAM-1 expression of T cell and such regulation is not mediated by higher cytokine production but $NF-{\kappa}B$ activation. Therefore, CD30 may play important roles in T-T or T-B cell interaction through regulation of ICAM-1, and -2 expression.

Effect of Tributylphosphine for the Solution-Liquid-Solid Synthesis of CdSe Nanowires

  • Jang, Hee Su;Lee, Jin Seok
    • Bulletin of the Korean Chemical Society
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    • v.34 no.2
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    • pp.590-594
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    • 2013
  • Semiconductor CdSe nanowires (NWs) can serve as model systems for investigating the physical properties of one-dimensional (1D) nanostructures and have great potential for applications in electronics and photonic nanodevices. With numerous attractions arisen from their physical properties, CdSe NWs have been synthesized by vapor-liquid-solid (VLS) methods, but they have some limitations of high reaction temperature and low production. Here, we synthesized CdSe NWs via the solution-liquid-solid (SLS) mechanisms using bismuth (Bi) covered substrates as a low-melting point catalyst and compared the products after injecting identical amount of Se and different amount of tributylphosphine (TBP). CdSe NWs have similar diameters but longer lengths with decreasing TBP, so we proposed the role of TBP as a solvent and capping agent of Se.

Immune-modulator Effect of Zanthoxyli Pericarpium Watet Extract (천초 추출물의 면역 조절 효과)

  • Shin, Hye-Young;Chang, In-Ae;Zhang, Wen-Ji;Kim, Youn-Chul;Yun, Yong-Gab;Park, Hyun
    • Journal of Physiology & Pathology in Korean Medicine
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    • v.22 no.2
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    • pp.410-414
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    • 2008
  • In the recently, increased concern has been focused on the pharmacology and clinical utility of herbal extracts and derivatives as a drug or adjunct to chemotherapy and immunotherapy. Here we investigated the modulatory effects of the extract of Zanthoxyli Pericarpium (ZP) in production of inflammatory mediators from Raw264.7 cells and expression of CD86, CD14, toll-like receptor (TLR)-4 from peritoneal macrophage. ZP enhanced the production of NO and $TNF-{\alpha}$ as well as mRNA expression of iNOS and $TNF-{\alpha}$. Treatment of peritoneal macrophage with ZP resulted in the enhanced cell-surface molecules expression of CD86, CD14 and TLR4. We assayed the effect of ZP in cell proliferation and production of $IFN-{\gamma},\;TNF-{\alpha}$. ZP increased Con A-induced cell proliferation and production of $IFN-{\gamma},\;TNF-{\alpha}$. These studies indicate that ZP induces macrophage activation and suggest the possible use of ZP in macrophage-based immunotherapies

Effect of Bupleuri Radix on Inflammatory Cytokine Secretion to HMC and Mouse Immmune Cells (시호(柴胡)가 MC 및 Mouse의 염증관련 cytokine 분비에 미치는 영향)

  • Choi, Sung-Woo;Kang, Hee;Shim, Bum-Sang;Kim, Sung-Hoon;Choi, Seung-Hoon;Ahn, Kyoo-Seok
    • Journal of Physiology & Pathology in Korean Medicine
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    • v.23 no.1
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    • pp.150-157
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    • 2009
  • This research was performed in order to investigate the anti-inflammatory effects of Bupleuri Radix(BR) on the Immune response in vitro. Cellular proliferation and cytokine production were measured in mast cells or mouse B cells or CD4 Th cells. BR water extract inhibited the secretions of TNF-$\alpha$ and IL-6 in PMA/A23187 stimulated HMC-1 cells. It increased proliferation but did not affect the expressions of CD69 or CD23 in rIL-4/anti-CD40 activated S cells. BR reduced surface IgE expression and secreted IgE but increased the production of IL-4, IFN-$\gamma$ and IgG1 in the same cells. BR caused an increase in proliferation in anti-CD3/anti-CD28 stimulated CD4 Th cells but it did not affect the differentiation of Th1 or Th2 cells. However, IL-2 was increased in BR treated Th2 cells. Considering the above-mentioned results, BR can be applied to a broad range of anti-inflammatory reactions, but our data suggest that it will not be likely to exert any effects on type 1 allergic response.

T cell phenotype and intracellular $IFN-{\gamma}$ production in peritoneal exudate cells and gut intraepithelial lymphocytes during acute Toxoplasma gondii infection in mice

  • Lee, Young-Ha;Shin, Dae-Whan
    • Parasites, Hosts and Diseases
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    • v.40 no.3
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    • pp.119-129
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    • 2002
  • Although there are many reports on the splenic (systemic) T cell response after Toxoptasma gondii infection, little information is available regarding the local T cell responses of peritoneal exudate cells (PEC) and gut intraepithelial Iymphocytes (IEL) following peroral infection with bradyzoites. Mice were infected with 40 cysts of the 76K strain of T. gondii, and then sacrificed at days 0, 1, 4, 7 and 10 postinfection (PI). The cellular composition and T cell responses of PEC and IEL were analyzed. The total number of PEC and IEL per mouse increased after infection, but the ratio of increase was higher in IEL. Lymphocytes were the major component of both PEC and IEL. The relative percentages of PEC macrophages and neutrophils/eosinophils increased signiflcantly at day 1 and 4 PI, whereas those of IEL did not change significantly. The percentage of PEC NK1.1 and ${\gamma\delta}T$ cells peaked at day 4 PI (p < 0.0001), and CD4 and $CD8{\alpha}T$ cells increased continuously after infection. The percentages of IEL $CD8{\alpha}$ and ${\gamma\delta}T$ cells decreased slightly at first, and then increased. CD4 and NK1.1 T cells of IEL did not change significantly after infection. $IFN-{\gamma}-producing$ PEC NK1.1 T cells increased significantly from day 1 PI, but the other T cell subsets produced $IFN-{\gamma}$ abundantly thereafter. The proportion of IEL $IFN-{\gamma}-producing$ $CD8{\alpha}$ and ${\gamma\delta}T$ cells increased significantly after infection, while IEL NK1.1 T cells had similar $IFN-{\gamma}$ production patterns. Taken together, CD4 T cells were the major phenotype and the important $IFN-{\gamma}$ producing T cell subsets in PEC after oral infection with T. gondii whereas $CD8{\alpha}T$ cells had these roles in IEL. These results suggest that PEC and IEL comprise different cell differentials and T cell responses, and according to infection route these factors may contribute to the different cellular immune responses.

Effects of Seokgokamibokhapbang(SGBHB) on anti-CD40-and recombinant IL-4-induced cytokine production and immunoglobulin E and histanine release in highly purified mouse B cells (석고가미복합방이 Anti-CD40과 rIL-4로 유도된 생쥐의 B 세포에서 싸이토카인 생성 및 면역글로블린 E에 미치는 효과)

  • Choi, Moon-Suk;Kim, Su-Myung;Namgung, Uk;Kim, Dong-Hee
    • Journal of Haehwa Medicine
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    • v.13 no.2
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    • pp.131-146
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    • 2004
  • In the present study, we exarnined anti-allergic effect of SGBHB in cultured B cells. B cells were prepared from isolated murine splenocytes and activated by co-treatment of anti-CD40 monoclonal antibody and recombinant IL-4 allergens. Anti-allergic effects of SGBHB in activated B cells were determined by measuring B cell surface activated molecules (CD23+ and CD11a+), and expression levels of IL-$1{\beta}$, IL-6, IL-10, TNF-$\alpha$, IgE, and HRF. The major findings are summarized as follows. 1. SGBHB treatment did not produce significant cytotoxic effects on mouse lung fibroblast cells. 2. SGBHB produced significant inhibitory effect on the expression of B cell surface activated molecules (CD23+ and CD11a) in activated B cells. 3. SGBHB treatment significantly inhibited expression levels of IL-$1{\beta}$, IL-6, and TNF-$\alpha$ mRNAs in activated B cells.IL-6 protein levels were significantly decreased by $100{\mu}g/m{\ell}$ of SGBHB treatrrient, and TNF-$\alpha$ protein levels were decreased compared to the control group, but statistically insignificant. 4. SGBHB treatment significantly increased IL-10 at both mRNA and protein levels in activated B cells. 5. SGBHB treatment significantly inhibited levels of IgE production. Thus, the present data suggest that SGBHB has an anti-allergic effect on activated B cells by controlling irnmune responses, and further implicates the possibility on clinical application as a therapeutic agent.

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Flavor development in cheddar cheese (체다 치즈의 맛의 개발)

  • Jeong, Cheong-Song;Yu, Sang-Hun
    • Proceedings of the Korea Hospitality Industry Research Society Conference
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    • 2003.05a
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    • pp.19-35
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    • 2003
  • This study was carried out to find a cholesterol removal rate, flavor development, and bitter amino acid productions in Cheddar cheese treated with -cyclodextrin (${\beta}-CD$): 1) Control (no homogenization, no ${\beta}--CD$), and 2) Milk treatment (1000 psi milk homogenization, 1% ${\beta}-CD$). The cholesterol removal of the cheese were 79.3%. The production of short-chain free fatty acids (FFA) increased with a ripening time in both control and milk treated cheese. The releasing quantity of short-chain FFA was higher din milk treated cheese than control at 5 and 7 mo ripening. Not much difference was found in neutral volatile compounds production between samples. In bitter-tasted amino acids, milk treatment group produced much higher than control. In sensory analysis, texture score of control Cheddar cheese significantly increased, however, that in cholesterol-reduced cheese decreased dramatically with ripening time.

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