• 제목/요약/키워드: Interferon alpha

검색결과 371건 처리시간 0.024초

교모세포종 U-251MG, U-373MG세포주의 Cytokines처리에 의한 세포내 ICAM-1 발현 (Cytokine Induction of Intercellular Adhesion Molecule-1(ICAM-1) Expression on Human Glioblastoma Cell Line, U-251 MG, U-373 MG)

  • 이종원;권정택;민병국;박승원;김영백;황성남;석종식;최덕영
    • Journal of Korean Neurosurgical Society
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    • 제29권4호
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    • pp.477-484
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    • 2000
  • Objective : Despite advances in the understanding of tumor biology and the tumor immunology, there has been no effective treatment. The Intercellular adhesion molecule-1(ICAM-1) has been shown to be important in interaction involving cells of the immune system and to be upregulated in a number of cell culture systems by cytokines, including immune interferon($IFN-{\gamma}$) and tumor necrosis $factor-{\alpha}$($TNF-{\alpha}$). ICAM-1 has been identified as one of the ligands for lymphocyte function-associated antigen-1(LFA-1). The effectiveness of various cytokines to ICAM-1 induction on cultured human glioblastoma cell lines and potential efficacy of immunotherapy were studied. Method : Human glioblastoma cell lines, U-251 MG, U-373 MG were trypsinized and suspended at $1{\times}10^5cells/ml$ and grown on 8 well chamber slide, the cells were incubated in 0.3ml medium alone or medium containing $IFN-{\gamma}$(1000U/ml) or $TNF-{\alpha}$(250U/ml) or $IFN-{\gamma}$ plus $TNF-{\alpha}$ for 6, 12, 24, 48 and 72 hours. The coverslip were then removed and stained with a 1/30 dilution of anti-ICAM-1 antibody. Result : Surface antigen expression of ICAM-1 was increased by incubating glioblastoma cell lines with $IFN-{\gamma}$ and $TNF-{\alpha}$. Combined effect of $IFN-{\gamma}$ and $TNF-{\alpha}$ has induced more ICAM-1 expression on glioblastoma cell lines. Upregulation of ICAM-1 expression in an established glioblastoma cell line was of greater magnitude and more rapid following incubation with $IFN-{\gamma}$ plus $TNF-{\alpha}$. Surface antigen expression of ICAM-1 was increased for up to 48 hours after cytokine treatment on both cell lines(p<0.05). There was no difference on both cell lines(p>0.05). Conclusion : The results of the present study indicate that ICAM-1 expression in glioblastoma cell lines, U-251 MG and U-373 MG, are induced and enhanced after treatment with $IFN-{\gamma}$ and $TNF-{\alpha}$. Combined effect of $IFN-{\alpha}$ and $TNF-{\gamma}$ is stronger and more rapid than $IFN-{\gamma}$ or $TNF-{\alpha}$ alone.

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A Case of Capecitabine-Induced Sarcoidosis

  • Kang, Shin-Myung;Baek, Ji-Yeon;HwangBo, Bin;Kim, Hyae-Young;Lee, Geon-Kook;Lee, Hee-Seok
    • Tuberculosis and Respiratory Diseases
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    • 제72권3호
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    • pp.318-322
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    • 2012
  • Sarcoidosis is an inflammatory disease involving multiple-organs with an unknown cause. The new onset of sarcoidosis associated with therapeutic agents has been observed in 3 clinical settings; tumor necrosis factor antagonists in autoimmune rheumatologic diseases, interferon alpha with or without ribavirin in patients with chronic hepatitis C or melanoma, and antineoplastic agent-associated sarcoidosis in patients with hematologic malignancies. Here, we report a female patient who developed sarcoidosis after capecitabine treatment as an adjuvant chemotherapy for sigmoid colon cancer. To our knowledge, this is the first report of a capecitabine-induced sarcoidosis.

Review on Targeted Treatment of Patients with Advanced-Stage Renal Cell Carcinoma: A Medical Oncologist's Perspective

  • Tanriverdi, Ozgur
    • Asian Pacific Journal of Cancer Prevention
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    • 제14권2호
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    • pp.609-617
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    • 2013
  • Renal cell carcinomas make up 3% of all cancers and one in four patients is metastatic at time of diagnosis. This cancer is one of the most resistant to cytotoxic chemotherapy. Studies have shown that the efficiency of interferon-alpha and/or interleukin-2 based immune therapies is limited in patients with metastatic renal cell carcinoma but latest advances in molecular biology and genetic science have resulted in better understanding of its biology. Tumor angiogenesis, tumor proliferation and metastasis develop by the activation of signal message pathways playing a role in the development of renal cell carcinomas. Better definition of these pathways has caused an increase in preclinic and clinical studies into target directed treatment of renal cell carcinoma. Many recent studies have shown that numerous anti-angiogenic agents have marked clinical activity. In this article, the focus is on general characteristics of molecular pathways playing a major role in renal cell carcinoma, reviewing clinical information onagents used in the target directed treatment of metastatic lesions.

FVA에 감염된 BALB/c mice를 이용한 생체내 항 AIDS 약물의 약효검색

  • 안형수;이상준;김동섭;허인회
    • 한국응용약물학회:학술대회논문집
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    • 한국응용약물학회 1993년도 제2회 신약개발 연구발표회 초록집
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    • pp.79-79
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    • 1993
  • BALB/C mice 에게 FVA를 감염시킨 후, zidobudine을 1 mg/ml 의 농도로 식수에 용해하여 18일 동안 자유롭게 섭취 시켰을때 (150-200 mg/kg/day) 비장비대가 90% 억제되었고, 혈액 중 reverse transcriptase 활성은 85%로 억제효과를 나타내었으며, 빈혈지수는 회복되는 경향을 나타내었다. 한편, ddI 는 AZT와 동일 용량에서 비장비대는 17%, 혈액 중 reverse transcriptase 억제효과는 34% 억제효과를 나타내었다. 반면에 ddC는 단독투여시 비장비대를 38% 억제하였으며, interferon $\alpha$와 병용투여시 83%의 억제효과를 나타내었다. 이상은 FVA 감염에 의한 mice의 비장비대를 지표로 하여 reverse transcriptase의 억제효과를 지닌 항 AIDS약물의 약효검색법으로 활용할 수 있음을 제시해준다.

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Inhibitory Effect of Protopanxatriol Ginsenosides in an Oxazolone-induced Mouse Psoriatic Model

  • Shin, Young-Wook;Bae, Eun-Ah;Han, Myung-Joo;Kim, Dong-Hyun
    • Journal of Ginseng Research
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    • 제30권3호
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    • pp.95-99
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    • 2006
  • When the inhibitory effect of ginsenoside (G) Re isolated from ginseng and its metabolites G-Rg1, G-F1, G-Rh1 and protopanaxatriol in mouse ear skin psoriasis stimulated by oxazolone was investigated, G-Re and its metabolites suppressed mouse ear swelling stimulated by oxazolone. Among these agents tested, G-Rh1 most potently suppressed ear swelling as well as mRNA expression of COX-2 and proinflammatory cytokines $IL-1{\beta},\;TNF-{\alpha}$ and $interferon-{\gamma}$. These findings suggest that G-Rh1 may improve chronic dermatitis and psoriasis.

침술과 피어싱으로 발생한 만성 C형 간염 1예 (A Case of Chronic Hepatitis C Acquired through Ear Piercing and Acupuncture)

  • 임지연;문경래
    • Pediatric Gastroenterology, Hepatology & Nutrition
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    • 제12권1호
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    • pp.88-92
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    • 2009
  • 산발성 C형 간염 환자의 약 40%에서 감염경로가 확실치 않다. 이러한 환자들에서 HCV 감염이 수혈, 투석, 수술, 수직감염 및 성적 접촉 등의 잘 알려진 감염 경로 이외에도 침, 귓불 천공 등의 경피적 경로를 통해 전파 될 수 있음을 간과하지 말아야 할 것이다. 저자들은 간염의 가족력이나 수술과 수혈 과거력이 없는 10세 여아에서 피어싱과 침술로 인해 발생한 만성 C형 간염을 진단하고, pegylated interferon과 경구 ribavirin으로 치료한 증례를 경험하였기에 문헌고찰과 함께 보고 한다.

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Cytokine expression pattern in milk somatic cells of subclinical mastitis-affected cattle analyzed by real time PCR

  • Bhatt, Vaibhav D.;Khade, Prasad S.;Tarate, Sagar B.;Tripathi, Ajai K.;Nauriyal, Dev S.;Rank, Dharamshi N.;Kunjadia, Anju P.;Joshi, Chaitanya G.
    • 대한수의학회지
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    • 제52권4호
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    • pp.231-238
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    • 2012
  • The expression profiles of inflammatory cytokines viz. interleukins (IL)-6, IL-8, IL-12, granulocyte macrophage-colony stimulating factor, interferon-${\gamma}$ and tumor necrosis factor-${\alpha}$ in response to subclinical mastitis in indigenous cattle breed Kankrej (n = 6), Gir (Bos indicus) (n = 12) and crossbred (Bos taurus${\times}$Bos indicus) (n = 7) were investigated using quantitative real time PCR. Significant correlation (p < 0.05) was observed between total bacterial load and somatic cell count (SCC) in all three breeds of cattle. All the cytokines were observed to be up-regulated compared to cows with healthy quarters, however, level of their expression varied among three breeds of cattle. In Kankrej most cytokines were found to be transcribed to higher levels than in other two breeds; the milk had higher load of bacteria but not so high SCC, implying that Kankrej has a higher inherent resistance against mastitis. The results of present study indicated that mammary glands of crossbred cattle are more sensitive to bacterial infection than indigenous breed of cattle as they elicit immune response at lower bacterial load and result into higher SCC. Research on identification of factors responsible for differentially expressed cytokines profiles and use of cytokines as immunomodulatory tools can pave way for formulating control strategies against bovine mastitis.

Red Ginseng-containing diet helps to protect mice and ferrets from the lethal infection by highly pathogenic H5N1 influenza virus

  • Park, Eun Hye;Yum, Jung;Ku, Keun Bon;Kim, Heui Man;Kang, Young Myong;Kim, Jeong Cheol;Kim, Ji An;Kang, Yoo Kyung;Seo, Sang Heui
    • Journal of Ginseng Research
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    • 제38권1호
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    • pp.40-46
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    • 2014
  • The highly pathogenic (HP) H5N1 influenza virus is endemic in many countries and has a great potential for a pandemic in humans. The immune-enhancing prowess of ginseng has been known for millennia. We aimed to study whether mice and ferrets fed with Red Ginseng could be better protected from the lethal infections of HP H5N1 influenza virus than the infected unfed mice and ferrets. We fed mice and ferrets with Red Ginseng prior to when they were infected with HP H5N1 influenza virus. The mice and ferrets fed with a 60-day diet containing Red Ginseng could be protected from lethal infections by HP H5N1 influenza virus (survival rate of up to 45% and 40%, respectively). Interferon-${\alpha}$ and -${\gamma}$ antiviral cytokines were significantly induced in the lungs of mice fed Red Ginseng, compared to mice fed an unsupplemented diet. These data suggest that the diet with the immune-enhancing Red Ginseng could help humans to overcome the infections by HP H5N1 influenza virus.