• 제목/요약/키워드: cytokine

검색결과 2,961건 처리시간 0.036초

동물모델에서 cytokine 조율을 통한 한약의 항아토피피부염 효능과 임상적 응용에 대한 고찰 (Review : Clinical application and efficacy of herbal medicines by modulating cytokines in atopic dermatitis-induced animal model)

  • 박영철;임정대;박용기;윤미숙;이선동
    • 대한본초학회지
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    • 제27권4호
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    • pp.33-44
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    • 2012
  • Objectives : There is a pressing need to determine the clinical and scientific validity of herbal therapies for animal model with atopic dermatitis since some differences in systemic cytokine polarization between in animal model and in patients with atopic dermatitis has been reported. New studies for tang, medicinal herb itself or effective ingradients of medicinal herb showing anti-atopic dermatitis effectiveness are reviewed in terms of cytokine regulation. Methods : Those herbal therapies used to treat atopic dermatitis in animal model were introduced and the expression pattern of cytokine and the activity of mast cell were compared in both animal model and patients with atopic dermatitis. Results : In case of atopic dermatitis in human, there is a biphasic pattern of cytokine expression in atopic dermatitis, with acute skin inflammation associated with a predominance of IL-4 and IL-13 expression from Th2 cells, and chronic inflammation associated with increased IL-5 from Th2-cells and IFN-${\gamma}$ from Th1-cells. However, a pattern of cytokine expression in animal model with atopic dermatitis is not matched well to the biphasic pattern of cytokine expression in patients with atopic dermatitis. In addition, a kind of cytokine is different by animal model with atopic dermatitis. These differences would make herbal medicines, showing their effectiveness on atopic dermatitis, difficult to apply to patients with atopic dermatitis. Conclusion : The pattern of local cytokine expression plays an important role in modulating tissue inflammation, and in atopic dermatitis this pattern depends on the acuity or duration of the skin lesion. Thus, in order to develop medicinal herb itself or effective ingradients of medicinal herb showing anti-atopic dermatitis effectiveness, biphasic pattern of cytokine expression should be considered in animal model with atopic dermatitis.

사이토카인 유전자 함유 바이러스 유사입자의 제조 (Virus-like Particles Containing Cytokine Plasmid DNA)

  • 오유경;손태종;신광숙;강민정;김정목;김남근;고정재;김종국
    • Journal of Pharmaceutical Investigation
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    • 제31권3호
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    • pp.185-190
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    • 2001
  • Human papillomavirus (HPV) infection is known to cause cervical cancers. Human papillomavirus-like particles (VLP) have been studied as preventive vaccines of cervical cancers. To develop VLP as a therapeutic gene carrier, we studied the method to encapsulate cytokine genes in virus-like particles. HPV type 16 capsid L1 genes were amplified by polymerase chain reaction and cloned into T vector. L1 gene was then inserted into baculovirus transfer vector. The clone of baculovirus encoding L1 gene was isolated and used to express L1 protein in Sf 21 insect cells. VLP were purified by CsCl density gradient and ultracentrifugation. VLP were disassembled to capsomer units by treatment of a reducing agent. Given that interleukin-2 (IL-2) genes have been used in anticancer gene therapy and as a molecular adjuvant, IL-2 cytokine plasmids were chosen as a model gene. IL-2 plasmids were incubated with the disassembled capsomer suspension. To reassemble the particles, the mixture of capsomers and cytokine plasmids was dialyzed. The disassembly and reassembly of VLP were confirmed by transmission electron microscopy. The entrapment of cytokine plasmids in reassembled VLP was tested by the stability of plasmids against DNase I. After treatment of reassembled virus-like particles with DNase I, discrete IL-2 DNA band was observed. Our results indicate that IL-2 cytokine plasmid (3.5 kb size) can be encapsulated in the virus-like particles, suggesting the potential of VLP as a gene delivery system. Moreover, VLP containing the adjuvant cytokine plasmids might function as more effective subunit vaccines.

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질경이 열수 추출 투여의 마이스 사이토카인 및 비장세포 증식 효과 (Effect of Plantago asiatica L. Water Extracts on Mice Spleen and Cytokine Cells Activation)

  • 류혜숙
    • 한국식품영양학회지
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    • 제30권3호
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    • pp.510-514
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    • 2017
  • 질경이 열수 추출물 첨가가 마이스의 면역세포 증식 미치는 영향에 대한 연구 결과, 음의 대조군에 비해 질경이 열수추출물을 첨가한 경우 모든 농도에서 비장세포 활성이 높게 나타났으며, 특히 $250{\sim}500{\mu}g/mL$ 농도에서 유의적으로 증가하였다(p<0.05). 한편, 대식세포 활성화로 유도된 cytokine 분비량 $IFN-{\gamma}$, IL-2, $TNF-{\alpha}$ cytokine측정 결과, IL-2는 유의성을 보이지 않았으나, $IFN-{\gamma}$, $TNF-{\alpha}$ 모두 $250{\sim}500{\mu}g/mL$ 농도에서 유의적인 차이를 보였다(p<0.05). 이상의 나타난 결과로 질경이 열수 추출물이 마이스 비장세포 생성을 유도하고, cytokine 분비량에도 영향을 줄 것으로 보여 진다. 따라서 질경이 물 추출물이 면역 기관과 면역세포를 자극하여 면역능 증가에 기여할 것으로 사료된다.

Cytokine Information System and Pathway Visualization

  • Shengyang, Tan;Keong, Kwoh-Chee
    • 한국생물정보학회:학술대회논문집
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    • 한국생물정보시스템생물학회 2005년도 BIOINFO 2005
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    • pp.10-14
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    • 2005
  • In this paper, we highlight the development of a web application system. Its main objective is to provide pathway visualization functionalities for inter-cytokine relationships, as well as for other types of relationships, with a specific cytokine(s) of interest. A natural language processor is first used to extract information from a certain web page that concerns the cytokine(s) of interest. The results obtained are then further processed and then displayed graphically to the user. The system displays how the cytokine(s) of interest interacts with other cytokines and cells. Useful information such as the type of reaction and catalyst involved, if any, are also displayed. In addition, the system also offers functionalities for graphical manipulations of the visualized pathways. The system has been shown to provide better overview, and hence, improved learning to readers who are new to this field by virtue of accurate inputs obtained from the natural language processing module.

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쌀 발효제품 제조를 위한 마크로파지활성 비피더스균의 선발 (Isolation of Macrophage-activating Bifidobacterium for the Manufacture of Fermented Rice Products)

  • 차성관;홍석산;지근억;목철균;박종현
    • 한국미생물·생명공학회지
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    • 제27권6호
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    • pp.509-514
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    • 1999
  • Forty seven amylolytic Bifidobacterium strains were isolated on starch-containing agar medium from the faecal samples of the various age groups of Korean. From these amyloytic Bifidobacterium spp., two strains of KFRI 1535, identified temporarily as Bifidobacterium longum, and KFRI 1550, identified as Bifidobacterium breve, showed great macrophage-stimulating activity for the production of tumor necrosis factor-$\alpha$ and inteleukin-6. As the cell concentration increased the cytokine production increased, although in some strains the cytokine levels started to decline over cell concentration increased the cytokine production increased, although in some strains the cytokine levels started to decline over cell concentration of $250\mu\textrm{g}$/ml. the strains which showed high cytokine-stimulating activity generally showed greater production of nitric oxide even though differences were less between strains. Selected Bifidobacterium strains were compared for their fermentation capability in saccharified rice solution and in apple pomace mixture.

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사람 말초혈액 단핵세포에서 흰털오가피 열매 추출물에 의한 Th1/Th2 Cytokine 분비조절 (Modulation of Th1/Th2 Cytokine Secretion in Human Peripheral Blood Mononuclear Cells by Water Extract of Acanthopanax divaricatus var. albeofructus Fruits)

  • 유수연;노빛나;박원봉
    • 약학회지
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    • 제52권1호
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    • pp.27-32
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    • 2008
  • Water extracts of Acanthopanax divaricatus var. albeofructus (ADA) fruits were used to treat hPBMC to determine the mechanisms for the immunomodulatory effects. The secretion level of various cytokines including Th-1 type (IL-2, L-12, $IFN-{\gamma}$ and $TNF-{\alpha}$) and Th-2 type (IL-6, IL-8 and IL-10) were measured using ELISA. A significant increase of Th-1 type cytokine secretion was observed in the presence of extract while Th-2 cytokine, IL-6 was suppressed. Our results suggest that ADA fruit extract may influence the anticancer immune responses towards a predominance of Th-1 cytokines in the immune system.

A study on the effects of herbal acupuncture with Liriopis Tuber extract on airway inflammation in the mouse induced with bronchial asthma

  • Park, Young-Whan;Park, Hee-Soo
    • 대한약침학회지
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    • 제4권1호
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    • pp.105-121
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    • 2001
  • Objectives: Herbal acupuncture has been administered with Liriopis Tuber extract on the point of BL 13 (Pyesu) to treat bronchial asthma and a certain degree of clinical benefits have been observed but lacking scientific substantiation. Methods: The present report describes on Th1 cytokine (Interleukin-2, Interferon-gamma), Th2 cytokine, (Interleukin-4, Interleukin-5), and IL-12 in bronchoalveolar lavage fluid (ELISA). Five groups were devised to study the effects of herbal acupuncture with Liriopis Tuber extract at BL 13 (Pyesu) for airway inflammation in the mouse model with bronchial asthma. Results shows that herbal acupuncture with Liriopis Tuber extract at BL 13 increased Th1 cytokine (Interleukin-2) in allergic sensitization and allergic challenge, and decreased Th2 cytokine (Interleukin-2, Interleukin-5) in allergic sensitization.

The Role of Intracellular Receptor NODs for Cytokine Production by Macrophages Infected with Mycobacterium Leprae

  • Kang, Tae-Jin;Chae, Gue-Tae
    • IMMUNE NETWORK
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    • 제11권6호
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    • pp.424-427
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    • 2011
  • The nucleotide-oligomerization domain (NOD) proteins are members of the NOD-like receptor (NLR) family, which are intracellular and cytoplasmic receptors. We analyzed the role of NODs for cytokine production by macrophages infected with intracellular pathogen M. leprae, the causative agent of leprosy. Production of pro-inflammatory cytokines such as IL-$1{\beta}$ and TNF-${\alpha}$ was inhibited in the presence of cytochalasin D, an agent blocking phagocytosis, suggesting that intracellular signaling was, partially, required for macrophage activation to M. leprae infection. Next, we investigated the role of NOD1 and NOD2 proteins on NF-${\kappa}B$ activation and cytokine expression. Treatment with M. leprae significantly increased NF-${\kappa}B$ activation and expression of TNF-${\alpha}$ and IL-$1{\beta}$ in NOD1- and NOD2-transfected cells. Interestingly, their activation and expression were inhibited by cytochalasin D, suggesting that stimulation of NOD proteins may be associated with the enhancement of cytokine production in host to M. leprae.

Screening of Immune-Active Lactic Acid Bacteria

  • Hwang, E-Nam;Kang, Sang-Mo;Kim, Mi-Jung;Lee, Ju-Woon
    • 한국축산식품학회지
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    • 제35권4호
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    • pp.541-550
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    • 2015
  • The purpose of this study was to investigate the effect of lactic acid bacteria (LAB) cell wall extract on the proliferation and cytokine production of immune cells to select suitable probiotics for space food. Ten strains of LAB (Lactobacillus bulgaricus, L. paracasei, L. casei, L. acidophilus, L. plantarum, L. delbruekii, Lactococcus lactis, Streptococcus thermophilus, Bifidobacterium breve, and Pedicoccus pentosaceus) were sub-cultured and further cultured for 3 d to reach 7-10 Log colony-forming units (CFU)/mL prior to cell wall extractions. All LAB cell wall extracts failed to inhibit the proliferation of BALB/c mouse splenocytes or mesenteric lymphocytes. Most LAB cell wall extracts except those of L. plantarum and L. delbrueckii induced the proliferation of both immune cells at tested concentrations. In addition, the production of TH1 cytokine (IFN-γ) rather than that of TH2 cytokine (IL-4) was enhanced by LAB cell wall extracts. Of ten LAB extracts, four (from L. acidophilus, L. bulgaricus, L. casei, and S. thermophiles) promoted both cell proliferating and TH1 cytokine production. These results suggested that these LAB could be used as probiotics to maintain immunity and homeostasis for astronauts in extreme space environment and for general people in normal life.

Colon26-L5 대장암 세포를 이용한 간전이 모델에 산삼약침 처치가 혈중 cytokine에 미치는 영향 (Effects of Cultivated Wild Ginseng Herbal Acupuncture to the serum cytokine on Hepatic Metastatic Model using Colon26-L5 Carcinoma Cells)

  • 조병준;권기록
    • 대한약침학회지
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    • 제9권1호
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    • pp.127-137
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    • 2006
  • Objective : This experiment was conducted to evaluate inhibitory effects against hepatic metastasis by cultivated wild ginseng Herbal Acupuncture. Methods : Colon26-L5 carcinoma cells were injected through hepatic portal vein to induce hepatic metastatic cancer. After treated cultivated wild ginseng Herbal Acupuncture and investigated various kinds of cytokine level using cytokine chip. Results : 1. Mice treated with cultivated wild ginseng Herbal Acupuncture reduced the level of $IL-l{\alpha}$, $IL-{\beta}$, and $TNF-{\alpha}$ compared to the control group. 2. Mice treated with cultivated wild ginseng Herbal Acupuncture was not showed significant change in the level of IL-4, IL-l0, IL-12 and $INF-{\gamma}$ compared to the control group. 3. Observing the level of various kinds of cytokine, cultivated wild ginseng Herbal Acupuncture was suppressed pro-inflammatory cytokine. These findings indicate cultivated wild ginseng Herbal Acupuncture is possible to use the inflammatory disease and futher studies carry out for the explanation of anticancer mechanism.