• 제목/요약/키워드: $Interferon-\gamma$

검색결과 554건 처리시간 0.028초

양격산화탕(凉膈散火湯)이 소양인(少陽人) 뇌경색증(腦硬塞症) 환자(患者)의 세포활성물질(細胞活性物質) 생성조절(生成調節)에 미치는 영향(影響) (Studies on the Regulatory Effect of Cytokine Production in Patients with Cerebral Infarction by Yangkyuksanhwatang)

  • 김경요;권덕윤
    • 사상체질의학회지
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    • 제12권2호
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    • pp.153-161
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    • 2000
  • 1. Purpose This studies the regulatory effect of cytokine production in Soyangin patients with cerebral infarction by Yangkyuksanhwatang. 2 Method ELISA 3. Result & Conclusion Yangkyuksanhwatang(YST) is a prescription for the cerebral infarction (CI) patients of Soyangin according to Sasang constitution philosophy. Soyangin patients with CI were treated with YST during the acute stage. Clinical signs of CI disappeared markedly in about 2 to 4 weeks after oral administration of YST in all patients. The mean interleukin (IL)-2 plasma levels were slightly lower in the patients with CI than in the normal groups, whereas the mean IL-4, IL-6 and IgE levels were significantly higher in the patients. There were no significant differences in interferon- ${\gamma}$ (IFN- ${\gamma}$ ) levels between the groups. Serum IFN- ${\gamma}$ and IL-2 levels derived from T helper (Th)1 cells were elevated significantly in the patients with CI by YST administration. Significant reduced plasma levels of IL-4 and IL-6 derived from Th2 cells and IgE were observed in the patients treated with YST. During the period of YST administration, there were no other adverse effects. The data indicate that YST has a good CI treatment effect, and that its action may be due to regulation of cytokine production.

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4주 동안의 옥수수 추출물 투여가 마우스 비장세포와 대식세포 생성에 미치는 영향 (Effects of a Corn Extract on Mouse Splenocyte and Cytokine Production by Peritoneal Macrophages)

  • 류혜숙
    • 한국식품영양학회지
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    • 제24권1호
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    • pp.65-70
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    • 2011
  • This study was performed to investigate the in vitro effect of a corn water extract on immune function. Splenocyte proliferation was determined by the MTT(3-[4,5-dimethylthiazol-2-yl]-2,5-diphenyl terazolium bromide) assay after preparing asingle cell suspension. Production of macrophage-secreted interleukin(IL)-$1{\beta}$, IL-6, and interferon(IFN)-${\gamma}$, was detected by ELISA using a cytokine assay kit. After a 48-hr incubation with mitogens(ConA or lipopolysaccharide), mice splenocyte proliferation increased with the addition of a corn water extract supplement at 10, 50, 100, 250, 500, or $1,000\;{\mu}g/m\ell$. Production of IL-$1{\beta}$, IL-6, and IFN-${\gamma}$ increased in treatments supplemented with the corn water extract. In an in vitro study, splenocyte proliferation increased when $50\sim1,000\;{\mu}\ell/m\ell$ corn water extract was added. In an ex vivo experiment, the highest production of cytokines by activated peritoneal macrophages was observed in mice orally administered 500 mg/kg body weight/day.

Effects of iNOS inhibitor on $IFN-{\gamma}$ production and apoptosis of splenocytes in genetically different strains of mice infected with Toxoplasma gondii

  • Kang, Ki-Man;Lee, Gye-Sung;Lee, Jae-Ho;Choi, In-Wook;Shin, Dae-Whan;Lee, Young-Ha
    • Parasites, Hosts and Diseases
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    • 제42권4호
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    • pp.175-183
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    • 2004
  • To evaluate the role of nitric oxide (NO) in $IFN-{\gamma}$ production and apoptosis of splenocytes in genetically different strains of mice with toxoplasmosis, BALB/c (a toxoplasmosis resistant strain) and C57BL/6 (a toxoplasmosis susceptible strain) mice were infected with Toxoplasma gondii cysts orally and subsequently injected intraperitoneally with aminoguanidine, an iNOS inhibitor (AG; 35 mg/kg per mouse daily for 14 days). When BALB/c or C57BL/6 mice were infected with T. gondii without AG treatment, number of brain cysts, NO and IFN-y production by splenocytes, and percentages of apoptotic splenocytes were increased compared to uninfected control mice without AG treatment. AG treatment increased the number of brain cysts, and reduced NO and $IFN-{\gamma}$ production in T. gondii-infected C57BL/6 mice. In contrast, in T. gondii-infected BABL/c mice, the number of brain cysts, and NO and $IFN-{\gamma}$ production of splenocytes was not altered by treatment with AG. However, the percentages of apoptotic splenocytes in T. gondii-infected BALB/c or C57BL/6 mice were not affected by AG treatment. These results suggest that NO modulates $IFN-{\gamma}$ production in T. gondii-infected C57BL/6 mice, and that NO is involved in mediating a protective response in toxoplasmosis susceptible, but not resistant, mice strain during acute infection.

Comparison of cytokine expression profiles in infants with a rhinovirus induced lower respiratory tract infection with or without wheezing: a comparison with respiratory syncytial virus

  • Roh, Da Eun;Park, Sook-Hyun;Choi, Hee Joung;Kim, Yeo Hyang
    • Clinical and Experimental Pediatrics
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    • 제60권9호
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    • pp.296-301
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    • 2017
  • Purpose: The aim of this study was to evaluate whether infants with rhinovirus (RV) infection-induced wheezing and those with respiratory syncytial virus (RSV) infection-induced wheezing have different cytokine profiles in the acute stage. Methods: Of the infants with lower respiratory tract infection (LRTI) between September 2011 and May 2012, 88 were confirmed using reverse transcription polymerase chain reaction and hospitalized. Systemic interferon-gamma ($IFN-{\gamma}$), interleukin (IL)-2, IL-12, IL-4, IL-5, IL-13, and Treg-type cytokine (IL-10) responses were examined with multiplex assay using acute phase serum samples. Results: Of the 88 patients, 38 had an RV infection (RV group) and 50 had an RSV infection (RSV group). In the RV group, the $IFN-{\gamma}$ and IL-10 concentrations were higher in the patients with than in the patients without wheezing (P=0.022 and P=0.007, respectively). In the RSV group, the differences in $IFN-{\gamma}$ and IL-10 concentrations did not reach statistical significance between the patients with and the patients without wheezing (P=0.105 and P=0.965, respectively). The $IFN-{\gamma}$ and IL-10 concentrations were not significantly different between the RV group with wheezing and the RSV group with wheezing (P=0.155 and P=0.801, respectively), in contrast to the significant difference between the RV group without wheezing and the RSV group without wheezing (P=0.019 and P=0.035, respectively). Conclusion: In comparison with RSV-induced LRTI, RV-induced LRTI combined with wheezing showed similar $IFN-{\gamma}$ and IL-10 levels, which may have an important regulatory function.

에탄올이 단핵구의 Prostaglandins 생산에 미치는 영향 (Effect of Ethanol on Prostaglandins Production of Monocytes)

  • 박란숙
    • Journal of Nutrition and Health
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    • 제24권2호
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    • pp.97-103
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    • 1991
  • 에탄올이 면역계의 항원전달세포이며, 동시에 감마인터페론 등의 림포카인에 의해 활성화되면 작동세포의 역활을 하는 단핵구-대식세포의 arachildonic acid 대사의 cyclooxygenasc 경로의 프로스타글라딘 생산에 미치는 영향을 연구하기 위하여 감마 인터페론으로 전처치하여 활성화시킨 단핵구와 대조군 단핵구를 사용하여 방사면역측정법으로 프로스타글라딘들을 측정하였다. 건강한 성인의 말초혈액으로 Ficoll-Hypaque용액을 이용한 농도구배법과 젤라틴 피복 플라스크를 이용하여 단핵구를 순수하게 분리한 다음 800단위의 감마 인터페론을 사용하여 3일동안 단핵구를 활성화시켰다. 감마인터페론으로 활성화 시키지 않은 $10^6$개의 단핵구에 100mM,300mM,600mM의 에탄올을 30분간 반응시킨 후 6시간후에 thromboxane B$_2$, PGEB$_2$ 와 6-keto-PGF1$\alpha$ 와 PGE$_2$ 모두 대조군에 비하여 생산이 증가하였다. 감마인터페론으로 전처치한 경우에는 알코올 처치에 관계없이 세가지 프로스타글란딘들 모두 6시간과 24시간에서 대조군보다 감소되었다. 이와같은 성적들로 미루어 볼 때 감마인터페론 처치가 에탄올로 유발한 단핵구 arachidonic acid 대사의 변화를 억제한다고 사료된다.

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Generation of Renal Cell Carcinoma-specific CD4+/CD8+ T Cells Restricted by an HLA-39 from a RCC Patient Vaccinated with GM-CSF Gene-Transduced Tumor Cells

  • Jun, Do Youn;Moutner, Joseph;Jaffee, Elizabeth
    • IMMUNE NETWORK
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    • 제3권2호
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    • pp.96-102
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    • 2003
  • Background: Granulocyte-macrophage colony-stimulating factor (GM-CSF) gene-transduced tumor cell vaccines induce very potent systemic anti-tumor immunity in preclinical and clinical models. Our previous phase I clinical trial in patients with metastatic renal cell carcinoma (RCC) has demonstrated both immune cell infiltration at vaccine sites and T cell-mediated delayed-type hypersensitivity (DTH) response to whole tumor cell vaccines. Methods: To investigate the immune responses to autologous genetically- modified tumor cell vaccines, tumor-specific $CD8^+$ T cell lines were generated from peripheral blood lymphocytes (PBL) of a RCC patient 1.24 by repeated in vitro stimulation with either B7.1-transduced autologous RCC tumor cells or B7.1-transduced autologous tumor cells treated with interferon gamma ($IFN{\gamma}$), and cloned by limiting dilution. Results: Among several RCC-specific cytotoxic T lymphocytes (CTLs), a $CD4^+/CD8^+$ double positive T cell clone (17/A2) appeared to recognize $IFN{\gamma}$-treated autologous RCC restricted by HLA-B39. The 17/A2 also recognized other HLA-B39 positive RCC tumor cells after $IFN{\gamma}$ treatment. Conclusion: These results demonstrate that autologous RCC vaccination successfully generates the tumor-specific CTL 17/A2, and suggest that the presentation and recognition of the tumor antigen by the 17/A2 might be upregulated by $IFN{\gamma}$.

세포 배양시 닭 골수세포로부터 파골세포앙 세포형성에 지질다당류와 인터페론 감마가 미치는 영향 (EFFECT OF LIPOPOLYSACCHARIDE AND INTERFERON-${\gamma}$ ON THE FORMATION OF OSTEOCLAST-LIKE MULTINUCLEATED CELL FROM CHICKEN BONE MARROW CELLS IN VITRO)

  • 오홍균;김정근;이재현
    • Journal of Periodontal and Implant Science
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    • 제25권3호
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    • pp.659-667
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    • 1995
  • 파골세포는 조혈기관 단핵의 세포로부터 생성되어 골 홉수에 중요한 역할올 담당하며, 지질다당류는 그람음성균의 세포벽을 이루는 성분으로서 치주질환시 치조골 홉수에 관여한다고 알려져 왔다. 활성화된 림프구, 대식세포와 단핵세포로부터 생성되는 당단백질인 인터페론 감마는 파골세포에 의한 골홉수를 억제한다고 밝혀졌다. 이 연구 논문의 목적은 지질다당류와 인터페론 감마가 닭 골수의 미분화세포가 파골양세포로 전환되는데 어떠한 영향올 주는지를 알아보기 위함이다. 16${\sim}$18 일째의 닭의 배 (chick embryo) 에서 경골을 분리하고 횡절개하여 혈청없는 M-199 배양액에 보관했다. 이것을 9${\mu}m$ filter로 여과시켜서 이미 분화된 파골세포와 기타 다른 분화 세포를 분리했다. 여기에서 파골세포의 전구세포를 얻어 LPS와 IFN-${\gamma}$를 단독 또는 복합처리 하고나서 4일 후에 tartrate resistant acid phosphatase (TRAP) Stain을 시행하고 TRAP 양성이며 핵이 세개 이상인 다핵의 세포형성을 관찰하여 세포를 계수하여 다음과 같은 결과를 얻었다. 1. 닭에서 분리해낸 미분화세포에 0.1. 0.5. 1.0 ${\mu}/ml$ 의 LPS 농도를 처리하고 1 주일간 배양한 결과. 0.1 ${\mu}/ml$ 의 농도에서는 대조군에 비해 TRAP 양성인 파골양세포가 증가하는 경향을 보였으며, 반면에 LPS는 0.5 와 1.0 ${\mu}/ml$ 의 농도에서 세포독성을 보였다.(P<0.05) 2. IFN-${\gamma}$는 50. 500U/ml 의 농도에서 대조군에 비해 TRAP 양성인 파골양세포의 수가 감소하는 경향올 보였다 .3. INF-${\gamma}$는 LPS 에의해 유도된 TRAP 양성인 파골양세포의 형성을 감소시켰고 특히 . 250.500U/ml 의 농도에서 유의 성 있는 감소를 보였다. 위의 결과로부터 LPS는 닭의 골수세포로부터 파골양세포의 형성을 증가시키며 IFN-${\gamma}$는 LPS에의해 유도된 파골양세포수를 감소시킨다는 결론을 얻었다.

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산삼(山蔘), 장뇌삼(長腦蔘), 인삼(人蔘)의 면역증강(免疫增强)효과 비교연구 (The Immune-Enhancing Effect of Mountain Gown ginseng, Mountain Cultivated ginseng, and Panax ginseng)

  • 정대규;권순주
    • 동의신경정신과학회지
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    • 제15권2호
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    • pp.89-101
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    • 2004
  • Objective : The present experiments were designed to study on the immune-enhancing effect of Mountain grown ginseng, Mountain cultivated ginseng, and Panax ginseng Method : In order to compare the immune-enhancing effect of moutain grown ginseng, moutain cultivated ginseng and Panax ginseng, the study was done through the forced swimming test (FST), measurement of T helper Th1, Th2 cytokines and fatigue related factors. Result : Moutain grown ginseng and panax ginseng decreased the immobility time in the FST compared to the control. Glucose, blood urea nitrogen (BUN), creatinine, lactate dehydrogenase (LDH) and Total-protein (T-protein) in serum were investigated. The serum achieved from ginseng administered mouse showed higher BUN, T-protein than the control. moutain grown ginseng administered group showed lower LDH than the control group. moutain grown ginseng administered mouse showed higher glucose than the control. Creatinine was same in either experimental or control group. Ginseng-induced cytokine production in human T-cell line, MOLT-4 cells and mouse peritoneal macrophages were compared. Moutain cultivated ginseng (10-4 dilution) and panax ginseng (10-3 dilution) were increased the interferon $IFN-{\gamma}$ production compared with media control (about 1.6-fold P<0.05) at 48 h. Moutain grown ginseng (10-4 dilution) was increased the $IFN-{\gamma}$ and interleukin IL-4 production compared with media control (about l.4-fold for $IFN-{\gamma}$ and 1.6-fold for IL-4 P<0.05) at 48 h. Moutain grown ginseng (10-3 dilution) and moutain cultivated ginseng (10-4 dilution) were increased the turmor necrosis factor $TNF-{\alpha}$ production compared with $rIFN-{\gamma}$ treated cells (about 1.9-fold for $TNF-{\alpha}$ P<0.05), respectively. Moutain cultivated ginseng (10-3 dilution) was increased the IL-12 production compared with $rIFN-{\gamma}$ treated cell (about 1.7-fold for IL-12 P<0.05). Conclusion : These data suggest that three different three kinds of ginseng act on immune responses in different aspects.

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싸이토카인 유발 췌장 ${\beta}$세포 독성에 대한 천화분 추출물의 방어효과 (Protective Effect of Radix Trichosanthis Extracts on Cytotoxicity of Pancreatic ${\beta}-Cells$ by Cytokines)

  • 송미영;김은경;송제호
    • 동의생리병리학회지
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    • 제22권2호
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    • pp.422-426
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    • 2008
  • In this study, the preventive effects of Radix Trichosanthis extracts (RTE) against cytokine-induced ${\beta}-cell$ death were assessed. Cytokines generated by immune cells infiltrating pancreatic islets are crucial mediators of ${\beta}-cell$ destruction in insulin-dependent diabetes mellitus. The treatment of RIN cells with $interleukin-1{\beta}$ ($IL-1{\beta}$) and $interferon-{\gamma}$ ($IFN-{\gamma}$) resulted in a reduction of cell viability. RTE protected $IL-1{\beta}$ and $IFN-{\gamma}$-mediated viability reduction in a concentration-dependent manner. Incubation with RTE also induced a significant suppression of $IL-1{\beta}$ and $IFN-{\gamma}$-induced inducible nitric oxide synthase (iNOS) protein expression. The molecular mechanism by which RTE inhibited iNOS protein expression appeared to involve the inhibition of $NF{-\kappa}B$ activation. The $IL-1{\beta}$ and $IFN-{\gamma}$-stimulated RIN cells showed increases in $NF{-\kappa}B$ binding activityand $I{\kappa}B{\alpha}$ degradation in cytosol compared to unstimulated cells. However, pretreatment with RTE inhibited cytokines-induced $I{\kappa}B{\alpha}$ degradation and $NF{-\kappa}B$ activation in RINm5F cells. Furthermore, the protective effects of RTE were verified via protection of impairment in glucose-stimulated insulin secretions in $IL-1{\beta}$ and $IFN-{\gamma}$-treated islets.

Human 백혈병 세포에 대한 비타민 $D_3$ 유도체의 항암효과 및 Human 임파구의 면역기능에 대한 비타민 $D_3$ 유도체의 역할 (Anticancer Effects of Vitamin D3 Analog on Human Leukemic Cell Line(U937) and Role of Vitamin $D_3$ Analog on Immune Function of Human Peripheral Blood Lymphocytes)

  • 정수자
    • 한국식품영양과학회지
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    • 제27권1호
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    • pp.141-148
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    • 1998
  • This study describes the effects of 1,25-dihydroxyvitamin D3[1,25(OH)2D3, calcitriol] analog, 1,25(OH)2-16ene-23yne-D3 on proliferatin and differentiatin of the human histiocytic lymphoma cell line U937. This paper also describes the effects of 1,25(OH)2-16ene-23yne-D3 on ${\gamma}$-interferon(IFN-${\gamma}$) synthesis by phytohemagglutinin-activated peripheral blood lymphocytes(PBLs). In the present investigation, 1,25(OH2)-16ene-23yne-D3 was compared to the natural metablite of vitamin D3, 1,25(OH)2D3. 1,25(OH)2-16ene-23yne-D3 was more potent than 1,25(OH)2D3 for inhibition of proliferation and induction of differentiation of U937 cells, Its effects on inhibition of proliferation was about 30-fold more potent than 1,25(OH)2D3. On induction of differentiation as measured by nonspecific esterase (NSE) activity and morphologic change, this analog morphologically and functionally differentiated U937 cells to monocyte-macrophage phenotype showing a decrease of N/C ration in Giemsa staining and the increase of adherence ability of surface. After 3 days in culture, a more significant supression of IFN-${\gamma}$ synthesis analog on supression of IFN-${\gamma}$ synthesis was a dose-dependent manner, with peak activity at 10-7M. The strong direct effects of 1,25(OH)2-16ene-23yne-D3 on cell proliferation and cell differentiation, make this compound an interesting candidate for clinical studies for several types of malignancies, and the effects on supression of IFN-${\gamma}$ synthesis provide the further evidence for a role of 1,25(OH)2-16ene-23yne-D3 in immunoregulation.

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