• Title/Summary/Keyword: IL-27

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Immunostimulating Effect of Chickent Egg White Derivatives on Chemotactic Activity of Feline Peripheral Blood Polymorphonuclear Cells (고양이 말초혈액 다형핵백혈구의 유주활성에 있어서 계난백유래물질의 면역증강 효과)

  • 양만표;이재권
    • Journal of Veterinary Clinics
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    • v.17 no.1
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    • pp.21-27
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    • 2000
  • 고양이 말초혈액 다형핵백혈구 (PMN)의 유주활성에 있어서 계난백유래물질 (EWD)의 면역증강 효과를 검토하였다. PMN의 유주활성은 EWD 그 자체 및 EWD로 배양한 PMN의 배양상층액에서는 활성이 존재하지 않았다. 그러나 EWD로 배양한 MNC 배양상층액에서는 PMN에 대한 유주활성이 증가되었다. 본 활성은 checkerboard assay를 통해 진성 유주활성으로 밝혀졌다. 이러한 고양이 PMN 유주활성은 human recombinant interleukin-8(hr IL-8)에 의해서도 증가되었다. IL-8의 또 다른 특성인 세포 형태변형 실험에서도 EWD로 배양한 MNC의 배양상층액과 hr IL-8 모두에서 높은 수준의 세포 형태변형효과를 나타내었다. 이와 같이 EWD로 배양한 MNC의 배양상층액과 hr IL-8 모두에서 증가된 PMN의 유주활성 및 세포변형효과는 anti-human IL-8mAb에 의해 농도의존적으로 억제되었다. 이상의 결과로부터 EWD는 고양이 PMN의 유주활성에 있어서 면역증강 효과가 있으며, 이것은 EWD에의해 활성화된 MNC에서 분비되는 IL-8양 유주성 인자에 의해 PMN의 유주활성 증가 및 세포 형태 변형이 일어나는 것으로 사료되었다.

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A Study on statistical inference on IL-2 titer (IL-2 역가의 통계적 추정에 관한 연구)

  • 박래현;박석영;이석훈
    • The Korean Journal of Applied Statistics
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    • v.2 no.2
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    • pp.27-35
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    • 1989
  • This article deals with statistical inference on Interleukin-2 titer of which the clinical applications to cancer immunotherapy and some immunodeficiency diseases have been widely tried. A Linear model and the Bayesian approach are used to explain the bioassay which performs the measurements of IL-2 activity from an patient and an inference procedure including confidence intervals for the IL-2 titer of the patient through comparision with the Standard IL-2 is suggested and a real case of example is illustrated.

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Effects of Imperatae Rhizoma Extract on T helper 2 cell differentiation (백모근 추출물의 T helper 2 세포 분화 조절 효과)

  • Kim, Bok-Kyu;Lim, Jong-Soon;Kil, Ki-Jung
    • The Korea Journal of Herbology
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    • v.29 no.6
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    • pp.27-33
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    • 2014
  • Objectives : The aims of this study were to exploring the therapeutic effect of Imperatae Rhizoma Extract(IRE) on Asthma. Methods : To investigate biological modulation activities of IRE, we conducted the cell-based assay whether IRE could regulate T helper 2 cells activity with EL4 T cells and mouse splenocytes, and followed animal study to conform the efficacy of their therapeutic potential on OVA-induced asthmatic mouse. Results : In cell study, IRE suppress the nuclear translocation of GATA binding protein-3 protein in phorbol 12-myristate 13-acetate/Ionomycin-stimulated EL4 T cells and Interleukine(IL)-4, IL-5 and IL-13 production in splenocytes at concentration dependent manner. In animal study, IRE-treated groups both 100mg/ml and 200mg/ml improve airway hypersensitibility reaction(AHR) response to methacholine about 30% and 40% with positive control group. Peritoneal blood analysis reveal that eosinophil number and ovalbumin-specific IgE is reduced by IRE treatment. Cell number of eosinophil is also reduced in bronchoalveolar lavage of IRE group like to peritoneal cell and real time-polymerase chain reaction data show that expression levels of IL-4, IL-5 and IL-13 were down regulated in lung tissue. Finally, histological analysis indicate that IRE protect the bronchial tissue damages through the accumulation of inflammatory cells and collagen, and these effect may be cause by interfering Th2 cells activity. Conclusions : Our data represent that IRE potentiates therapeutic activities to the allergic diseases such as asthma by regulating Th2 cells differentiation.

Anti-inflammatory Effect of Broccoli Leaf Hexane Fraction in LPS-stimulated RAW264.7 Cells

  • Kim, Mee-Kyung
    • Journal of the Korea Society of Computer and Information
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    • v.27 no.1
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    • pp.175-181
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    • 2022
  • In this study, we tested the anti-inflammatory effects of broccoli leaf hexane fraction to confirm the applicability as a functional material in food and cosmetics. This sample was extracted using 70% ethanol from Broccoli leaf and then fractionated with hexane. The production of pro-inflammatory cytokines (TNF-α, IL-4, IL-6, IL-1β), protein expression of iNOS and COX-2, phosphorylation of MAPKs (ERK, JNK, p38) and NF-κB with broccoli leaf hexane fraction were assayed on LPS-stimulated RAW264.7 cells. The broccoli leaf hexane fraction inhibited the secretion of pro-inflammatory cytokines and protein expression of iNOS and COX-2. Also, the broccoli leaf hexane fraction reduced the phosphorylation of MAPKs and NF-κB. Therefore, it is considered that th broccoli leaf hexane fraction has the potential to be used as a natural anti-inflammatory material in food and cosmetics. In the future, it is considered necessary to study the anti-inflammatory mechanism and identification of major bioactive substances.