• Title/Summary/Keyword: anti-$TNF-{\alpha}$ antibody

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Effect of the Crude Polysaccharides Fraction from Eleutherococcus senticosus as a Immunoadjuvant to Soluble Antigens (BSA and OVA) (오가피 조다당의 단백질 항원 (BSA and OVA)에 대한 면역증강효과)

  • 황수현;하은숙;유광원;신광순;이상훈;이재권;이경호;윤택준;박우문
    • YAKHAK HOEJI
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    • v.47 no.3
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    • pp.167-175
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    • 2003
  • Eleutherococcus senticosus is a typical oriental folk medicinal herb. It has been used clinically as a anti-rheumatic disease, anti-stress, ischemic heart disease and gastric ulcer. In the present study, we examined the adjuvant activity of the crude polysaccharides fraction from Eleutherococcus senticosus, EN-3, on the induction of humoral and cellular immune responses against bovine serum albumin (BSA) or ovalbumin (OVA). The thioglycollate-induced macrophages and silica-induced dendritic-like cells cultured with BSA and EN-3 synergistically increased the production of TNF-$\alpha$ and IL-12. When mice were subcutaneously immunized with BSA + EN-3, the antibody titer against BSA was showed significantly higher than those immunized with BSA alone. In addition, when mice were immunized with OVA + FIA + EN-3, the antibody titer was showed similar patterns with the FCA. The assay for determining subisotype of antibody revealed that EN-3 augmented OVA-specific antibody titer of IgG1 and IgG2b. The culture supernatant obtained from splenocytes of mice treated with OVA + FIA + EN-3 also showed a higher level of both OVA-specific Th1-type (IL-2, IFN-${\gamma}$ and GM-CSF) and Th2-type cytokine (IL-4, IL-6 and IL-10). In vitro analysis of T cell proliferation to OVA on 8 weeks, the splenocytes of mice treated with OVA + EN-3 showed a significantly higher proliferating activity than those treated with OVA alone. These results suggest that EN-3 may possess adjuvant activities to potentially to enhance humoral as well as cellular immune response.

Effects of the Butanol Extact of Head of Panax Ginseng on Type II Collagen-induced Arthritis in DBA/1J Mice

  • Jeong, Choon-Sik
    • Biomolecules & Therapeutics
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    • v.15 no.4
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    • pp.235-239
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    • 2007
  • In order to evaluate the improvement effects of head of Panax ginseng on chronic arthritis, we have investigated the activity of butanol fraction (BuOH fraction) in vitro and in vivo system. BuOH fraction showed significant inhibition on the elastase activity. Anti-arthritic activity of BuOH fraction was also examined on type II collagen-induced arthritis in DBA/1J mice. Mice were immunized with injection of type II collagen emulsified in Freund's complete adjuvant, followed by a booster injection 21 days later. BuOH fraction(BHPG) was administered at an oral dose of 500mg/kg for 2 weeks from the 1st day boost. The hind paw edema was significantly decreased in the group of treatment with BuOH fraction compared to control. In collagen-induced DBA/1J mice, BuOH fraction did not affected the collagen antibody titer but significantly inhibited the tumor necrosis factoralpha(TNF-${\alpha}$) activity. These results were confirmed with histological evaluation of joint tissues. This study may raise the possibility that the usage of BuOH fraction of head of Panax ginseng as alternative medicine for the relief and prevention of rheumatoid arthritis symptoms.

Update on treatment in acute stage of Kawasaki disease (가와사끼병 급성기 치료의 최신 지견)

  • Han, Ji Whan
    • Clinical and Experimental Pediatrics
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    • v.51 no.5
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    • pp.457-461
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    • 2008
  • Kawasaki disease (KD) was first described by Dr. Tomisaku Kawasaki in his 1975 study, published in Pediatrics. Its pathogenesis is still not clearly understood. Early diagnosis and treatment are very important to preventing concomitant coronary artery complications. Most KD patients respond well to the standard treatment of aspirin and intravenous immunoglobulin; however, some of them are refractory to the standard treatment, and so adjuvant therapies with corticosteroids and anti-tumor necrosis $factor-{\alpha}$ ($TNF-{\alpha}$) antibody are necessary. In this article, the author reviews and summarizes the most recent literature on the treatment of refractory KD.

Effect of Sinapis alba L. on expression of interferon-gamma and interleukin-4 production in anti-CD3/anti-CD28-stimulated CD4(+) T cells (CD4+ T cells에서 백개자가 IFN-$\gamma$와 IL-4 생성에 미치는 영향)

  • Park, Dae-Jung;Lee, Jang-Cheon;Lee, Young-Cheol
    • The Korea Journal of Herbology
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    • v.25 no.2
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    • pp.129-136
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    • 2010
  • Objective : Sinapis alba L. (SA) is a korean traditional herbal medicine that is usually used to prevent or treat inflammatory diseases, such as respiratory infection and rheumatoid arthritis. However, the effects of SA supplementation in vitro on serum antibody levels, splenocyte and peritoneal macrophage immune responses have not yet been determined. In this study, we examined the effect of SA on the production of Th1/Th2 cytokines. Methods : Splenocytes were isolated from naive C57BL/6 mice. Cells were enriched for CD4+ cell populations by first staining the cells with anti-CD4 (BD PharMingen, Calif, USA). CD4+ T cells were selected on a (CS) column, and the flow-through was collected as CD4+ T cells. Isolated cells were activated by overnight incubation on 24-well plates coated with $1{\mu}g/mL$ anti-CD3, $1{\mu}g/mL$ anti-CD28 and with SA ($100{\mu}g/mL$). Primary macrophages were collected from the peritoneal cavities of mice (8-week-old female C57BL/6). The peritoneal macrophages were washed and plated with RPMI-1640 overnight for the experiments. After 48-hours cultures, samples were centrifuged at 2000 rpm for 10 minutes, and the supernatants were stored at $-80^{\circ}C$. Mouse IL-4, IFN-$\gamma$ and TNF-$\alpha$ were quantified using ELISA kits (BioSource International, Camarillo, Calif, USA) according to the manufacturer's protocols. Results : SA at 100ug/ml decreased the generation of Th1 cytokine (IFN-$\gamma$) by 0.5-fold. However, SA has no effect on Th2 (IL-4) production. Conclusions : These results suggest that SA may play an important role in the control of T-cell-mediated autoimmunity by down-regulation of Th1 cytokine (especially IFN-$\gamma$, TNF-$\alpha$). These data may contribute to the design of new immunomodulating treatments for a group of autoimmune diseases.

Increased Expression of Fas Antigen and Apoptosis in Aplastic Anemia Bone Marrow Cells (재생불량성 빈혈의 병태생리에서 Fas 항원과 Apoptosis의 역할)

  • Won, Jong-Ho;Lee, Nam-Su;Kim, Sook-Ja;Cheong, Hee-Jeong;Lee, Kyu-Taeg;Park, Seung-Kyu;Baick, Seung-Ho;Kim, Sung-Il;Hong, Dae-Sik;Park, Hee-Sook
    • IMMUNE NETWORK
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    • v.2 no.1
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    • pp.53-59
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    • 2002
  • Background: Clinical observations and laboratory studies have supported an immune basis for most acquired aplastic anemias, with the majority of patients responding to immunosuppressive therapy. Fas, a member of the tumor necrosis factor (TNF) receptor superfamily is a critical downregulator of cellular immune responses. Proinflammatory cytokines like interferon gamma (IFN-${\gamma}$) and TNF-${\alpha}$ can induce Fas expression and render hematopoietic progenitor cells susceptible to Fas-induced growth suppression and apoptosis. Methods: In order to investigate the involvement of apoptosis in the pathogenesis of aplastic anemia (AA), we measured the expression of Fas antigen and caspase-3 on bone marrow (BM) mononuclear cells (MNCs) of AA in the presence or absence of IFN-${\gamma}$, TNF-${\alpha}$, or macrophage inflammatory protein 1-${\alpha}$ (MIP-$1{\alpha}$). Results: We confirmed that AA BM MNCs were more apoptotic and highly expressed Fas antigen than normal donors. Stimulation by IFN-${\gamma}$, TNF-${\alpha}$, or MIP-$1{\alpha}$ increased Fas antigen and caspase-3 expression in AA BM MNCs than BM MNCs of normal donors. Anti-Fas monoclonal antibody enhanced IFN-${\gamma}$, TNF-${\alpha}$, or MIP$1{\alpha}$ mediated caspase-3 expression in BM MNCs of normal donors. Among these three cytokines, IFN-${\gamma}$ enhanced apoptosis most strongly via Fas-caspase-3 pathway. Conclusion: These results suggest that Fas signal pathway may play a role in the pathophysiology of aplastic anemia and negative hematopoietic regulators like IFN-${\gamma}$ can induce apoptosis of bone marrow progenitors in part by Fas induction.

Inhibitory effect of Ulmus davidiana on ${\beta}$-hexosaminidase release and cytokine production in RBL-2H3 cells (유근피 추출물이 RBL-2H3 비만세포에서 ${\beta}$-hexosaminidase 및 cytokine 분비에 미치는 효과)

  • Park, Se-Bong;Kang, Kyung-Hwa;Yoon, Hwa-Jung;Ko, Woo-Shin
    • The Journal of Korean Medicine Ophthalmology and Otolaryngology and Dermatology
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    • v.24 no.1
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    • pp.86-95
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    • 2011
  • Objectives : Ulmus davidiana (UD) has been widely used in Korean herbal medicines used for treatment of acute and chronic inflammatory diseases, such as rhinitis, asthma, and abscess. In this study, To investigated the protective effect of UD on type 1 allergic response, we determined whether UD inhibits early and late allergic response. Methods : The effect of UD was analyzed by ELISA and RT-PCR in RBL-2H3 cells. Levels of ${\beta}$ -hexosaminidase, interleukin (IL)-4 and TNF-${\alpha}$ were measured using enzyme-linked immunosorbent assays (ELISAs). mRNA levels of COX-2 and T-helper type 2(Th2) cytokines were analyzed with RT-PCR. Results : We found that UD suppressed ${\beta}$-hexosaminidase release in RBL-2H3 not only by the PMA plus A23187 stimulation, but also by the IgE-DNP-HSA stimulation at the antigen-antibody binding stage and antibody-receptor binding stage. UD also significantly inhibited COX2 level, along with reduced Th2 cytokine levels, such as IL-3, IL-4, IL-5, IL-13, GM-CSF, and TNF-${\alpha}$ in RBL-2H3. Conclusions : Our results indicate that UD protects against type 1 allergic response and exerts an anti-inflammatory effect through the inhibition of degranulation and expression of COX2 and Th2 cytokines.

Inhibitory Effect of a decoction composed of Evodia rutaecarpa (Juss.) Benth. and Chaenomeles sinensis Koehne and its component herbal medicines on Collagen II-induced Arthritis Mice (Collagen II-induced Arthritis 생쥐에 대한 오수유(吳茱萸), 목과(木瓜) 및 배합약물의 관절염 억제 효과)

  • Park, Dae-Jung;Lee, Young-Cheol;Lee, Jang-Cheon
    • The Korea Journal of Herbology
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    • v.29 no.4
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    • pp.35-44
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    • 2014
  • Objectives : Evodia rutaecarpa (Juss.) Benth.(ER) and Chaenomeles sinensis Koehne (CS) have multiple applications and were known to have anti-inflammatory effects. In the current study, we investigated to clearly understand the mechanism of therapeutic role for CS, ER and their combination in CIA model mice. Methods : DBA/1OlaHsd mice were immunized with bovine type II collagen. After a second collagen immunization, mice were treated with CS, ER and their combination once a day for 7 weeks. Cytokine production and gene expression were assessed during CIA (collagen-induced arthritis) model mice in knee joint, lymph node (LN) using ELISA and FACS analysis. The severity of arthritis within the knee joints was evaluated by histological assessment of cartilage destruction and pannus formation. Result : Oral administration of CS, ER and their combination (150 mg/kg) significantly suppressed the progression of CIA, and significantly suppressed the progression of CIA and inhibited the production of TNF-${\alpha}$ and IL-6 in serum. The erosion of cartilage was dramatically reduced in mouse knees after treatment with CS plus ER. Conclusion : These result suggest that CS plus ER significantly suppressed the progression of CIA and that this action was characterized by the decreased production of TNF-${\alpha}$, IL-6 and collagen II specific antibody in serum.

Anti-inflammatory Effect of Anemarrhenae Rhizoma on Collagen Induced Arthritis - a Model for Rheumatoid Rrthritis in DBA/1J Mice and Cytokine Production in Raw264.7 Cells (지모의 collagen 유발 관절염에 대한 소염 효과 - DBA/1J mouse 에서의 병태 관찰 및 RAW264.7에서의 cytokine 분비측정 -)

  • Jeong, Keun-Kie;Kang, Hee;Myung, Eu-Gene;Shim, Bum-Sang;Kim, Sung-Hoon;Choi, Seung-Hoon;Ahn, Kyoo-Seok
    • Journal of Physiology & Pathology in Korean Medicine
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    • v.22 no.6
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    • pp.1416-1422
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    • 2008
  • In order to examine anti-inflammatory effect of Anemarrhenae Rhizoma (AR) alcohol extract on rheumatoid arthritis, the present study investigated the viability and TNF-${\alpha}$ production in Raw264.7 cells treated with AR and collagen induced arthritis in DBA/1J mice which were orally administered with AR prior to immunization. The results are as follows: AR extract at 20 and 50${\mu}g$/ml inhibited the viability of Raw264.7 by 35% and 79%, respectively. AR showed a significant decrease in TNF-${\alpha}$ levels from Raw264.7 cells treated with LPS. AR administration significantly decreased arthritic index in DBA/1J mice immunized with bovine collagen type II. AR administration significantly decreased spleen weights obtained from mice in 6 weeks after immunization. AR administration significantly decreased serum anti-type II collagen antibody levels compared with control group. AR administration decreased serum IL-6 levels compared with control group but it did not reach statistical significance.

Local Cervical Immunity in Women with Low-grade Squamous Intraepithelial Lesions and Immune Responses After Abrasion

  • Ekalaksananan, Tipaya;Malat, Praphatson;Pientong, Chamsai;Kongyingyoes, Bunkerd;Chumworathayi, Bandit;Kleebkaow, Pilaiwan
    • Asian Pacific Journal of Cancer Prevention
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    • v.15 no.10
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    • pp.4197-4201
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    • 2014
  • Minor trauma to the uterine cervix is supposed to induce local immunity to prevent cervical lesions caused by human papillomavirus (HPV) infection. This study aimed to investigate the local cervical immunity in women with low grade squamous intraepithelial lesion (LSIL) and effects of abrasion after cryosurgery or Pap smear. One hundred women with LSIL and known results of HPV detection were recruited. HPV positive women were randomly divided according to abrasion into cryotherapy and Pap smear observation groups. Cervical tissues and cervico-vaginal lavage (CVL) were collected at 6 and 12 months after allocation. The levels of cytokines at first recruitment were compared with cytokine levels at 6 months after abrasions. The mRNA of IFN-${\gamma}$, TNF-${\alpha}$ and IL-10 in cervical tissues and these cytokines secreted in CVL were determined using real time PCR and ELISA, respectively. Anti-HPV16 IgG and IgA antibodies in CVL were assessed by western blotting. At first recruitment of women with LSIL (100 cases), IL-10 mRNA and cytokine in HPV positive group (60 cases) was significantly higher than negative group (40 cases). IFN-${\gamma}$ and TNF-${\alpha}$ mRNA level in both groups were comparable but their secretions in CVL were significantly increased in HPV negative group. After abrasion for 6 months in HPV-positive women, all mRNA and secreted cytokines were changed, but no significant difference was observed between cryotherapy and observation groups. When individuals were compared between first recruitment and after abrasion for 6 months, IFN-${\gamma}$ mRNA and anti-HPV16 L1 IgA antibodies were significantly increased in the cryotherapy group. The results suggest that modulation of local cervical immunities by abrasion might promote different effects in clearance of HPV-related cytological abnormalities.

Inhibitory Mechanism on NF-${\kappa}B$ Transactivation by Dexamethasone in Pulmonary Epithelial Cells (폐상피세포에서 Dexamethasone에 의한 NF-${\kappa}B$ Transactivation 억제기전에 관한 연구)

  • Lee, Kye-Young;Kim, Yoon-Seop;Ko, Mi-Hye;Park, Jae-Seok;Jee, Young-Koo;Kim, Keun-Youl;Kwak, Sahng-June
    • Tuberculosis and Respiratory Diseases
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    • v.48 no.5
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    • pp.682-698
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    • 2000
  • Glucocorticoid receptor (GR) functions as a suppressor of inflammation by inhibiting the expression of many cytokine genes activated by NF-${\kappa}B$. The goal of this study is to investigate the mechanism by which GR repress NF-${\kappa}B$ activation in lung epithelial cells. We used A549 and BEAS-2B lung epithelia! cell lines. Using Ig$G{\kappa}$-NF-${\kappa}B$ luciferase reporter gene construct, we found that dexamethasone significantly suppressed TNF-$\alpha$-induced NF-${\kappa}B$ activation and the overexpression of GR showed dose-dependent reduction of TNF-$\alpha$-induced NF-${\kappa}B$ activity in both cell lines. However, DNA binding of NF-${\kappa}B$ induced by TNF-$\alpha$ in electromobility shift assay was not inhibited by dexamethasone. Super shift assay with anti-p65 antibody demonstrated the existence of p65 in NF-${\kappa}B$ complex induced by $\alpha$ Western blot showed that $I{\kappa}B{\alpha}$ degradation induced by TNF-$\alpha$ was not affected by dexamethasone and $I{\kappa}B{\kappa}$ was not induced by dexamethasone, neither. To evaluate p65 specific transactivation, we adopted co-transfection study of Gal4-p65TA1 or TA2 fusion protein expression system together with 5xGal4-luciferase vector. Co-transfection of GR with Gal4-p65TA1 or TA2 repressed luciferase activity profoundly to the level of 10-20% of p65TA1- or TA2-induced transcriptional activity. And this transrepressional effect was abolished by co-transfection of CBP of SRC-1 expression vectors. These results suggest that GR-mediated transrepression of NF-${\kappa}B$ in lung epithelial cells is through competing for binding to limiting amounts of transcriptional coactivators, CBP or SRC-1.

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