• Title/Summary/Keyword: $IFN{\alpha}-2b$

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Effect of Kami-chungsimyeunjatang on atopic dermatitis-like skin lesions induced in NC/Nga mice by mite antigen stimulation (가미청심연자탕(加味淸心蓮子場)이 NC/Nga mice의 아토피양(樣) 피부염에 미치는 영향)

  • Han, Jae-Kyung;Kim, Yun-Hee;Yoon, Ji-Yeon
    • The Journal of Pediatrics of Korean Medicine
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    • v.21 no.1
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    • pp.87-116
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    • 2007
  • Objectives : The purpose of this study is to examine of the effect of Kami-chungsimyeunjatang(KCSYJT) medicine on the atopy eruption control. Methods : The expression of IgE, IL-4, IL-6, $TNF-{\alpha}$, IgG2b, IgM, IgG2a and IgG1 level in serum, and $IFN-{\gamma}$ production by KCSYJT were analyzed. CD3e+/CD69+, CD4+/CD25+, B220+/IgE+ and B220+/CD23+ positive cells by flow cytometry in splenocytes were assayed and the revelation of CD3e+/CD69+, CD4+/CD8+ and CD4+/CD25+ marker in PBMC, spleen and DLN were observed. The outturn of IL-4, eotaxin 2, CCR3, TARC mRNA in splenocytes werw observed. We also analyzed NC/Nga mice's ear, DLN and neck-back skin after biopy and dye by H&E, and toluidine staining (mast cells marker) method, measured about epidermis and dermis part in comparison with control group. Results : NC/Nga mice suffered from dermatitis very similar to human AD with IgE hyperproduction. Specially, result that measure IgE content in serum on 8 weeks, 12 weeks, 16 weeks decreased remarkably than control group. After experiment end, result that observe revelation CD3e+/CD69+, CD4+/CD8+ and CD4+/CD25+ marker in PBMC, spleen and DLN establishment observed recover as normal with political background. And decreased than result control group which measure IL-4, IL-6, $TNF-{\alpha}$, IgG2b, IgM, IgG2a, IgG1 level in serum, and $IFN-{\gamma}$ production secreted in Th1 cell displayed increase by KCSYJT medicines. Ear thickness decrease than control group in result that observe effect that get in ear of a NC/Nga mouse. Course inflammation immunocyte etc.. permeated of result that effect that KCSYJT medicines get to NC/Nga mouse's skin establishment analyzes ear, DLN and neck-back skin after biopy, and dye by H&E, and toluidine staining (mast cells marker) method decreased about epidermis. and inflammation of dermis part remarkably than control group. Immunohistochemical examination of the skin lesion showed decrease by KCSYJT medicines on numbers of mast cells (CCR3) and CD4+ T cells containing IL-4 necessary for IgE. Conclusions : Th1 cell and Th2 cell was observed to be shift by secretion amount of IL-4 and $IFN-{\gamma}$ by KCSYJT medicines. Therefore, the KCSYJT medicine turned out to be useful in allergy autoimmune disease.

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IL-4-deficient Mice Aggravate Hypersensitivity Pneumonitis

  • Hwang, Su-Jin;Chung, Doo-Hyun
    • IMMUNE NETWORK
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    • v.8 no.3
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    • pp.90-97
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    • 2008
  • Background: Hypersensitivity pneumonitis (HP) comprises a group of lung diseases resulting from repeated inhalation of various antigens such as Saccharopolyspora rectivirgula (SR). HP is categorized as a Th1 disease. Therefore, it has been suggested that IL-4, Th2 type cytokine, plays a protective role in the development of HP. However, the functional role of IL-4 in HP has not been extensively investigated in vivo. Therefore, we investigated the functional role of IL-4 in HP using IL-4 knockout (KO) mice. Methods: HP was induced by repeated exposure to SR in C57BL/6 (B6) and IL-4 KO (C57BL/6 background) mice. Results: IL-4 KO mice aggravated HP in terms of histological alteration, SR-specific immune responses, and inflammatory cell infiltration in the lungs compared with B6 mice. IL-4 KO mice produced high levels of IFN-${\gamma}$, TGF-${\beta}$ and TNF-${\alpha}$ in the lungs, whereas B6 mice showed the enhanced production of IL-4. Moreover, chemokines such as MIP-1${\alpha}$, MCP-1, and RANTES were highly expressed in IL-4 KO mice. IFN-${\gamma}$-secreting CD4, CD8 T cells, and neutrophils were enhanced in the bronchoalveolar lavage fluid (BALF) of IL-4 KO mice than those of B6 mice. The administration of recombinant(r) IL-4 restored these immunologic parameters in IL-4 KO mice. Conclusion: These results indicate that IL-4 plays a suppressive role in SR-induced HP by attenuating Th1-dominant immune responses.

Effect of Flammulina velutipes Extracts Cultivated with Oriental Herbal Plants on the Activation of Immune Cells (폐 한방슬러지로 배양한 팽이버섯(Flammulina velutipes) 추출물의 면역세포 활성화 효과)

  • Kim, Jong-Jin;Lee, Sang-Won;Park, Kyung-Wuk;Seo, Kwon-Il;Yee, Sung-Tae
    • Journal of Life Science
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    • v.22 no.6
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    • pp.828-836
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    • 2012
  • The objective of the current study was to determine the effects of the extracts isolated from the fruit body of Flammulina velutipes cultivated with oriental herbal plants on mouse splenocytes, B cells, and macrophages in vitro. The ethanol extracts B (EEB) directly induced the proliferation of spleen cells in a dose-dependent manner and increased IL-6, TNF-${\alpha}$, and IFN-${\gamma}$ synthesis. The EEB also increased the proliferation of B cells in a dose-dependent manner. The production of immunoglobulin M, G1, G2a, G2b, and IgG3 in the presence of the EEB increased progressively in the culture supernatant. When the EEB were used in macrophage cell line (RAW264.7) stimulation, there was a marked induction of NO synthesis in a dose-dependent manner and an increased IL-6, TNF-${\alpha}$, and GM-CSF synthesis. Intraperitoneal injection with EBB showed life prolongation effect of 16.1% in mice previously inoculated with sarcoma-180, respectively. These results suggest that the capacity of the EEB isolated from the fruit body of Flammulina velutipes cultivated with oriental herbal plants seems to act as a potent immunomodulator causing augmentation of immune cell activity, and with the absence of notable side-effects, Flammulina velutipes EEB could be used as a biological response modifier having possible therapeutic effects against immunological disorders. This study also showed that functional components of Flammulina velutipes were possibly improved by incorporating oriental herbal plants in a growth medium.

Effects of JaUmJeSeupTangKaKam (JUJSTK) on Atopic Dermatitis-like Skin Lesions in NC/Nga Mouse (아토피양(樣)피부염 NC/Nga생쥐에서 자음제습탕가감(滋陰除濕湯加減)의 투여가 피부염에 미치는 영향)

  • Lee, Nam-Yerl;Kim, Yun-Hee;Han, Jae-Kyung
    • The Journal of Pediatrics of Korean Medicine
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    • v.23 no.2
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    • pp.87-101
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    • 2009
  • Objectives : The purpose of this study is to investigate the effect of JUJSTK on atopic dermatitis in an in-vitro experiment using an NC/Nga atopic dermatitis mouse, which has histological and clinical similarities to the humans in terms of health condition. Methods : We evaluated IL-1$\beta$, IL-6, IL-10, TNF-$\alpha$ mRNA, TGF-$\beta$ mRNA, CD4+/IFN-$\gamma$+ and IL-17+CD4+Th17 cells of NC/Nga atopic dermatitis mouse by real-time PCR and intracellular staining in vitro. Results : JUJSTK medicines supressed the activities of IL-1$\beta$, IL-6, TNF-$\alpha$, TGF-$\beta$ mRNA and IL-17+CD4+Th17 cells and it incresed the activities of IL-10 mRNA in B cells. The level of CD4+/IFN-$\gamma$+ in T cells were increased by JUSSTK. Conclusions : JUJSTK on atopic dermatitis might be incredibly effective to the atopic dermatitis treatment.

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Effect of Pueraria thunbergiana Extracts on the Activation of Immune Cells (칡 추출물의 면역세포 활성화 효과)

  • Kim, Jong-Jin;Lee, Hyeok-Jae;Yee, Sung-Tae
    • Journal of Life Science
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    • v.22 no.8
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    • pp.1107-1113
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    • 2012
  • In this experiment, the effects of Pueraria thunbergiana extracts on the activation of immune cells were studied. An immune cell-activating factor was partially purified from P. thunbergiana by means of physiological saline extraction, acetone precipitation, and heating inactivation. P. thunbergiana extracts increased the proliferation of spleen cells and induced the production of IL-2, IL-6, TNF-${\alpha}$, and IFN-${\gamma}$ by spleen cells. Also, they increased the proliferation of purified B cells and the production of IgM antibody in a dose-dependent fashion. The extract self-induced NO synthesis in a mouse macrophage cell line (RAW264.7). When cell lines were treated with extracts, the cytokines' (IL-$1{\beta}$, IL-6, and TNF-${\alpha}$) production was markedly increased. Therefore, P. thunbergiana extract can self-activate spleen cells, B cells, and macrophages. These results might be useful in further studies into a possible immune-activating agent derived from P. thunbergiana for the development of functional foods and drugs.

Acrolein with an α,β-unsaturated Carbonyl Group Inhibits LPS-induced Homodimerization of Toll-like Receptor 4

  • Lee, Jeon-Soo;Lee, Joo Young;Lee, Mi Young;Hwang, Daniel H.;Youn, Hyung Sun
    • Molecules and Cells
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    • v.25 no.2
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    • pp.253-257
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    • 2008
  • Acrolein is a highly electrophilic ${\alpha},{\beta}$-unsaturated aldehyde present in a number of environmental sources, especially cigarette smoke. It reacts strongly with the thiol groups of cysteine residues by Michael addition and has been reported to inhibit nuclear $factor-{\kappa}B$ ($NF-{\kappa}B$) activation by lipopolysaccharide (LPS). The mechanism by which it inhibits $NF-{\kappa}B$ is not clear. Toll-like receptors (TLRs) play a key role in sensing microbial components and inducing innate immune responses, and LPS-induced dimerization of TLR4 is required for activation of downstream signaling pathways. Thus, dimerization of TLR4 may be one of the first events involved in activating TLR4-mediated signaling pathways. Stimulation of TLR4 by LPS activates both myeloid differential factor 88 (MyD88)- and TIR domain-containing adapter inducing $IFN{\beta}$ (TRIF)-dependent signaling pathways leading to activation of $NF-{\kappa}B$ and IFN-regulatory factor 3 (IRF3). Acrolein inhibited $NF-{\kappa}B$ and IRF3 activation by LPS, but it did not inhibit $NF-{\kappa}B$ or IRF3 activation by MyD88, inhibitor ${\kappa}B$ kinase $(IKK){\beta}$, TRIF, or TNF-receptor-associated factor family member-associated $NF-{\kappa}B$ activator (TANK)-binding kinase 1 (TBK1). Acrolein inhibited LPS-induced dimerization of TLR4, which resulted in the down-regulation of $NF-{\kappa}B$ and IRF3 activation. These results suggest that activation of TLRs and subsequent immune/inflammatory responses induced by endogenous molecules or chronic infection can be modulated by certain chemicals with a structural motif that enables Michael addition.

Immunomodulating Effects of Red Ginseng on the Regulation of Cytokine Release in vivo (홍삼의 생체 내 사이토카인 분비에 대한 면역조절효과)

  • Sohn, Eun-Hwa;Yoon, Jae Woong;Koo, Hyun Jung;Park, Dae Won;Jeong, Yong Joon;NamKoong, Seung;Han, Hyo-Sang;Kang, Se Chan
    • Korean Journal of Plant Resources
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    • v.25 no.5
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    • pp.578-585
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    • 2012
  • Cytokines released from innate immune cells play key roles in the regulation of the immune response. Red Ginseng (RG, steamed and dried root of Panax ginseng C.A. Meyer) is known to show different pharmacological effects by changed composition of saponins compared with Panax Ginseng. In this study, we examined the immunomodulatory effects of RG on the regulation of cytokine release in mice. RG was injected i.p at doses of 0.5, 5 and 50 mg/kg for 6 weeks. We assessed that the weight index of immune organs such as thymus, and spleen, and the mitogen blastogenesis of splenocytes. We also determined the levels of circulating cytokines in serum from RG-treated mice using ELISA assay. The weight index of thymus and spleen, and proliferation of mitogen response of splenocytes have increased in the RG-injected groups. In addition, the levels of IFN-${\gamma}$, TNF-${\alpha}$, IL-6, IL-12 and IL-2 concentrations have significantly increased in the serum of RG-treated mice, but that of IL-10 has not. These results suggest that RG has immune stimulating effects and could be useful as a immunoregulator of circulating cytokine release in vivo.

Immunomodulating Effect of the Lectin from Allomyrina dichotoma (장수풍뎅이(Allomyrina dichotoma) 렉틴의 면역기능 증강효과)

  • Jeune, Kyung-Hee;Jung, Mi-Yeun;Choi, Soo-Jeong;Lee, Jong-Wook;Park, Won-Hark;Cho, Se-Hoon;Lee, Seung-Ho;Chung, See-Ryun
    • Korean Journal of Pharmacognosy
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    • v.32 no.1 s.124
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    • pp.31-38
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    • 2001
  • A lectin was purified from Allomyrina dichotoma (ADL) by physiological saline extraction, ammonium sulfate fractionation, anion exchange column chromatography on DEAE Sephadex A-50 and gel filtration column chromatography on Sephadex G-200. Several biochemical properties of ADL were characterized as follows: ADL from gel filtration column chromatography showed single band on SDS-PAGE. ADL agglutinated the erythrocytes of rabbit and human A, B, O, AB. Agglutinability was relatively stable at basic pH, and was stable at temperature below $40^{\circ}C$. Agglutinability was not affected by metal ions and EDTA. This lectin was proved to be a glycoprotein which contains 0.47% of sugars. The molecular weight of ADL was estimated to be 97,000 dalton by SDS-PAGE. By amino acid analysis, ADL exhibited high amounts of aspartic acid. The lectin's immunomodulating effect was measured as cytokine production. The productions of 5 cytokines $(IL-1{\alpha},\;IL-2,\;IL-6,\;IFN{\gamma}\;and\;TNF{\alpha})$ from peripheral blood mononuclear cells were measured by ELISA. The lectin induced the highest secretion of IL-2 at 8 hr, $TNF{\alpha}$ at 4 hr, and $IFN{\gamma}$ at 24hr, respectively. These results suggest that ADL can elicit the production of detectable cytokines from PBMC.

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Nelumbinis Folium Methanol Extract Regulates Inducible Nitric Oxide Synthase Signaling Pathways in Mouse Peritoneal Macrophages (하엽(荷葉) 메탄올 추출물의 마우스 대식세포 inducible nitric oxide synthase 합성과 신호전달에 대한 조절)

  • Lee, Si-Eun;Lee, Mi-Hwa;Choi, Ho-Young;Sohn, Nak-Won;Kang, Hee
    • The Korea Journal of Herbology
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    • v.27 no.1
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    • pp.65-71
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    • 2012
  • Objective : Nelumbinis Folium (NF) is used for diarrhea, headache and dizziness in traditional medicine. In this paper, we examined the anti-inflammatory effects of the methanol extract of NF in mouse macrophages. Methods : Peritoneal macrophages from thioglycollate medium-injected mice were cultured and stimulated with lipopolysaccharide(LPS) or LPS/interferon(IFN)-${\gamma}$ for viability assay, cytokine measurement and Western blotting. Results : NF methanol extract suppressed the levels of nitric oxide (NO) through reduction of inducible NO synthase in a concentration-dependent manner. The extract reduced LPS/IFN-${\gamma}$-stimulated STAT1 phosphorylation and LPS-induced $I{\kappa}B{\alpha}$ degradation through inhibition of $I{\kappa}B{\alpha}$ kinase activation. The extract also inhibited p38, JNK/SAPK and ERK1/2 activation. Conclusions : Our findings suggested that NF has anti-inflammatory activity, and have a potential for therapeutic application. Further research is required to investigate its anti-inflammatory active compounds.

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.