• Title/Summary/Keyword: -interferon

검색결과 984건 처리시간 0.035초

Interleukin-12 as a Therapeutic Target of Th1-mediated Autoimmune Diseases

  • Kim, Tae-Sung
    • 대한약학회:학술대회논문집
    • /
    • 대한약학회 2003년도 Proceedings of the Convention of the Pharmaceutical Society of Korea Vol.1
    • /
    • pp.82-83
    • /
    • 2003
  • In the past it was thought that autoimmunity is mediated by antibodies and immune complexes. It has now become clear that many diseases, especially tissue specific, are T cell mediated or at least T cell dependent. The pathogenesis of cell-mediated autoimmune diseases, such as multiple sclerosis, uveitis, diabetes, arthritis, and others, is thought to be in a large measure driven by interferon-gamma-producing antigen-specific T cells polarized toward the Th1 phenotype. (omitted)

  • PDF

Host Cell-Intrinsic Antiviral Defense Induced by Type I Interferons

  • Asano, Atsushi
    • 농업과학연구
    • /
    • 제35권2호
    • /
    • pp.177-182
    • /
    • 2008
  • Type I Interferons (IFNs) are potent antiviral cytokines that modulate both innate immunity and adaptive immunity. Type I IFNs are immediately induced by viral infection, and stimulate production of a broad range of gene products such as double-stranded RNA-activated protein kinase (PKR), 2' 5'-oligoadenylate synthetase (OAS)/RNaseL and Mx GTPases. These proteins inhibit viral replication in host cells. Type I IFNs, in turn, lead to antiviral state at early phase of viral infection. We provide an overview of the knowledge of IFN-inducible antiviral proteins conserved in vertebrates.

  • PDF

Considerations in the Design of the Preclinical Safety Program for PegIntron

  • Davis, Thomas
    • 한국독성학회:학술대회논문집
    • /
    • 한국독성학회 2003년도 추계학술대회
    • /
    • pp.87-88
    • /
    • 2003
  • PegIntron is the pegylated form of human recombinant interferon alfa-2b (IFN${\alpha}$2b). IFN ${\alpha}$2b, known as Intron A, has been in approved clinical use since the 1980's for various cancer indications, and for the treatment of Hepatitis C. In the mid 1990's, several clinical investigators reported that combination therapy with ribavirin and Intron A dramatically increased the therapeutic efficacy for treatment of Hepatitis C.(omitted)

  • PDF

Blood Component Change in Rat by Lipopolysaccharide and Cell Wall Protein-A from Vibrio vulnificus, E. coli, and S. typhimurium

  • Lee, Bong-Hun
    • Journal of Life Science
    • /
    • 제10권2호
    • /
    • pp.9-11
    • /
    • 2000
  • Lipopolysaccharide (LPS) and cell wall protein-A (CWP-A) were extracted from the cell wall of Vibrio vulnificus, Escherichia coli and Salmonella typhimurium. LPSs and CWP-As were injected into rat and the changes of the following blood components were examined. The change of the number of white blood cell (WBC), red blood cell (RCB), platelet (PLT), blood urea nitrogen (BUN) and blood glucose in rat blood and interferon (IFN) activity change by LPS and CWP-A were measured. WBC, RETI, PTT, and BUN were increased and RBC and blood glucose were increased slightly, but PLT was decreased.

  • PDF

Capillary Electrophoretic Analysis of PEGylated Interferon Alpha

  • Na, Dong-Hee;Park, Eun-Ji;Lee, Seung-Seok;Lee, Sang-Deuk;Jo, Young-Woo;Lee, Sung-Hee;Kim, Won-Bae;Lee, Kang-Choon
    • 대한약학회:학술대회논문집
    • /
    • 대한약학회 2001년도 Proceedings of International Convention of the Pharmaceutical Society of Korea
    • /
    • pp.286.1-286.1
    • /
    • 2001
  • PDF

Dieckol, a Component of Ecklonia cava, Suppresses the Production of MDC/CCL22 via Down-Regulating STAT1 Pathway in Interferon-γ Stimulated HaCaT Human Keratinocytes

  • Kang, Na-Jin;Koo, Dong-Hwan;Kang, Gyeoung-Jin;Han, Sang-Chul;Lee, Bang-Won;Koh, Young-Sang;Hyun, Jin-Won;Lee, Nam-Ho;Ko, Mi-Hee;Kang, Hee-Kyoung;Yoo, Eun-Sook
    • Biomolecules & Therapeutics
    • /
    • 제23권3호
    • /
    • pp.238-244
    • /
    • 2015
  • Macrophage-derived chemokine, C-C motif chemokine 22 (MDC/CCL22), is one of the inflammatory chemokines that controls the movement of monocytes, monocyte-derived dendritic cells, and natural killer cells. Serum and skin MDC/CCL22 levels are elevated in atopic dermatitis, which suggests that the chemokines produced from keratinocytes are responsible for attracting inflammatory lymphocytes to the skin. A major signaling pathway in the interferon-${\gamma}$ (IFN-${\gamma}$)-stimulated inflammation response involves the signal transducers and activators of transcription 1 (STAT1). In the present study, we investigated the anti-inflammatory effect of dieckol and its possible action mechanisms in the category of skin inflammation including atopic dermatitis. Dieckol inhibited MDC/CCL22 production induced by IFN-${\gamma}$ (10 ng/mL) in a dose dependent manner. Dieckol (5 and $10{\mu}M$) suppressed the phosphorylation and the nuclear translocation of STAT1. These results suggest that dieckol exhibits anti-inflammatory effect via the down-regulation of STAT1 activation.

산지별(産地別) 봉독액약침자극(峰毒液藥鍼刺戟)이 면역기능저하(免疫機能低下)에 미치는 영향(影響) (The Effect of Honey Bee Venom Aqua-Acupuncture by its Production from Different Regions on Decreased Immune Response)

  • 이경희;김창환;강성길;고형균
    • Journal of Acupuncture Research
    • /
    • 제17권4호
    • /
    • pp.28-40
    • /
    • 2000
  • Objectives : This study was purposed to investigate the effect of honey bee venom aqua-acupuncture on decreased immune response by its production from Korea, North America and China. Methods : ICR-mouse was exposed with four minute sublethal 60Co- $\gamma$ -ray irradiation onto the body and got a series of each country's 0.1 ml honey bee venom aqua-acupuncture to Choksamni(ST36) every other day for three times. Thereafter the numbers of WBC, delayed type hypersensitivity, hemagglutinin titers, hemolysin titers, quantitation of T-cell and B-cell, lymphocyte transformation, natural killer cell activity, interleukin-2 productivity and interferon productivity were measured. Results : The numbers of WBC, delayed type hypersensitivity, hemagglutinin titers, hemolysin titers, quantitation of T-cell and B-cell and lymphocyte transformation were increased respectively with statistical significance in Korean, North American and Chinese honey bee venom aqua-acupuncture groups as compared with the control group. The natural killer cell activity was increased with statistical significance in Korean honey bee venom aqua-acupuncture group, and Interleukin-2 productivity and interferon productivity were not shown any statistical significance in all experimental groups as compared with the control group. Conclusions : According to the results, honey bee venom aqua-acupuncture has significant effect on decreased immune response, and Korean bee venom can be substituted for North American and Chinese one.

  • PDF