• 제목/요약/키워드: -interferon

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유전자 재조합 대장균을 사용한 Alpha-interferon의 생산과 분비: 제2부. 재조합 균주의 생장특성 (Extracellular Production of Alpha-Interferon by Recombinant Escherichia coli: Part II. The Growth Behavior of the Recombinant Cells)

  • 노갑수;최차용
    • KSBB Journal
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    • 제5권3호
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    • pp.195-200
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    • 1990
  • 대장균의 lipoprotein promoter, lactose promotor 및 operator 와 lipoprotein의 signal sequence 를 가지는 vector에alpha-IFN 유전자가 cloning된 plasmid pIF-Ill-B를 여러종류의 대장균 숙주 세포에 형칠전환하여 alpha-IFN 의 생산성, 생장특성을 조사하였다. 또한 plasmid 자체와 cloning된 alpha-IFN 유전자의 발현유도가 세포생장에 미치는 영 향을 조사하였다.

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위암세포주에 대한 항암제 5-FU와 alpha-interferon의 상승적 항암효과

  • 김삼용
    • 한국응용약물학회:학술대회논문집
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    • 한국응용약물학회 1993년도 제2회 신약개발 연구발표회 초록집
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    • pp.131-131
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    • 1993
  • 위암의 화학요법 성적이 만족스럽지 못하므로 기존의 항암제와 alpha-interferon을 병용사용하므로써 상승적 항암효과가 있는가를 연구하였다. R-25 flask에 위암세포주 SNU-1 및 SNU-16을 배양하면서 항암제 5-FU 혹은 cisplatin에 alpha-interferon 2A(제일제당)를 분자량의 비에 따라 병요처리하였다. 96시간 배양후 cytotoxicity를 Mosman의 방법에 따른 MIT방법으로 분석하였으며, 이를 Chou등의 combination index 분석 program을 처리하였다. 위암세포주 SNU-1에 대하여 5-FU와 alpha-IFN은 상승작용을 보였다. 5-FU의 $IC_{50}$/가 14.25$\mu$M 이었고 IFN처리시는 $IC_{50}$/가 0.02$\mu$M이었으며 combination index(CI)는 모든 용량에서 1이하였다. SNU-16에 대하여도 5-FU와 alpha-IFN의 병용사용은 상승적 작용을 나타내었다. (CI<1.0). cisplatin과 alpha-IFN의 병용시에는 CI가 1이상을 나타내어 상승작용을 증명할 수 없었다.

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Interferon과 5-FU 병합요법에 의한 후두 유두종의 치료 (EFFECT OF COMBINED THERAPY OF INTERFERON AND 5-FU IN LARYNGEAL PAPILLOMA)

  • 최호선;노환중;고의경;조병우;왕수건
    • 대한기관식도과학회:학술대회논문집
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    • 대한기관식도과학회 1987년도 제21차 학술대회 연제순서 및 초록
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    • pp.20.1-20
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    • 1987
  • 후두 유두종은 후두에서 발생하는 가장 흔한 양성종양이나 임상적으로는 이비인후과영역에서 치유하기 어려운 질환중 하나이다. 1817년 Cheesmann이 성대에서 발생한 유두종을 처음 보고한 이래 많은 보고가 있었으나 아직도 결정적인 치료법이 없는 실정이다. 연자는 수술적 제거후 재발을 방지할 목적으로 Interferon을 술후 7일간은 300,000IU을 매일 피하주사하고 이후는 주 3회에 걸쳐 주사하였으며 동시에 5-FU l00mg을 주 5회 국소분무요법으로 3개월간 병합 실시하여 치료후 평균 3개월 이상 관찰 결과 대상환자 10명중 6명에서는 전혀 재발이 없었고 2명은 현저한 감소, 2명은 재발의 양상을 나타내었다.

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Long Double-stranded RNA Induces Sequence-specific RNA Interference and Type I Interferon Responses in Rock Bream (Oplegnathus fasciatus)

  • Zenke, Kosuke;Kim, Ki-Hong
    • Fisheries and Aquatic Sciences
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    • 제13권1호
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    • pp.56-62
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    • 2010
  • To determine whether long double-stranded RNA (dsRNA) induces RNA interference and type I interferon (IFN) responses in fish, long dsRNAs encoding enhanced green fluorescent protein (EGFP), GFPuv, and polyinosinic-polycytidylic acid sequences were co-injected with an EGFP expressing plasmid, into rock bream (Oplegnathus fasciatus). We investigated the EGFP mRNA and protein levels, and the transcriptional responses of dsRNA-dependent protein kinase and Mx1 genes. Long dsRNAs were strong inducers of a type I IFN response in rock bream, resulting in nonspecific suppression of exogenous gene expression. Furthermore, sequence-specific knockdown of exogenous gene expression at the mRNA level was detected at an early phase (24 h). These results suggested that long dsRNA may inhibit exogenous gene expression through an early mRNA interference response and a later type I IFN response in fish.

PERI-AND POSTNATAL STUDY OF RECOMBINANT HUMAN INTERFERON alphaA (LBD-007) IN RATS

  • Chung, Moon-Koo;Kim, Sung-Hoon;Roh, Jung-Koo
    • Toxicological Research
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    • 제9권1호
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    • pp.107-118
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    • 1993
  • LBD-007, a newly developed recombinant human interferon alphaA, was at dose levels of 0.3 $\times$$10^6$ , 6 $\times$ $10^6$ and 12 $\times$ $10^6$ IU/kg/day administered subcutaneously to pregnant and subsequent delivered SpragueDawley rats from day 17 of gestation through day 21 of lactation. Effects of test substance on dams and growth, behaviour and mating performance of F1 offspring were examined. 1. No treatmene-related changes in clinical signs, food consumption, body weight, pregnant period and necropsy findings were observed in dams.

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CHANGES OF BLOOD PARAMETERS AFTER ESCALATING DOSE OF DA-3021 IN CYNOMOLGUS MONKEY

  • Kim, Choong-Yong;Heo, Jeong-Doo;Han, Su-Cheol;Jo, Yeong-Woo;Chung, Moon-Koo
    • 한국독성학회:학술대회논문집
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    • 한국독성학회 2002년도 Molecular and Cellular Response to Toxic Substances
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    • pp.194-194
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    • 2002
  • Interferon has therapeutic potential for a wide range of infectious and proliferous disorders such as chronic hepatitis C. However, it has drawbacks such as relatively short serum half-life and rapid clearance like other therapeutic proteins. The attachment of a polyethylene glycol (PEG) moiety to interferon is considered as one of the most promising solutions for its ability to extend the plasma residence time.(omitted)

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FERTILITY STUDY OF RECOMBINANT HUMAN INTERFERON alphaA (LBD-007) IN RATS

  • Chung, Moon-Koo;Kim, Sung-Hoon;Roh, Jung-Koo
    • Toxicological Research
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    • 제9권1호
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    • pp.73-82
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    • 1993
  • LBD-007, a newly developed recombinant human interferon alphaA, was at dose levels of 0, 3$\times$$10^6$, 6$\times$ $10^6$ and 12$\times$1$10^6$ IU/kg/day administered subcutaneously to Sprague-Dawley male rats from premating to mating period and to females from premating to early gestation period. Effects of test agent on reproductive performance of both sexes and embryonic development were examined. 1. No treatment-relared changes in food consumption, body weight and necropsy findings were observed in parent animals.

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TERATOGENICITY STUDY OF RECOMBINANT HUMAN INTERFERON alphaA (LBD-007) IN RABBITS

  • Chun, Moon-Koo;Kim, Sung-Hoon;Roh, Jung-Koo
    • Toxicological Research
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    • 제9권1호
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    • pp.99-105
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    • 1993
  • LBD-007, a newly developed recombinant human interferon alphaA, was at dose levels of 0.3 $\times$$10^6$ , 6 $\times$ $10^6$ and 12 $\times$ $10^6$ IU/kg/day administered subcutaneously to pregnant New Zealand White rabbits during the organogenetic period. Cyclophosphamide was used as a positive control. All pregnant females were subjected to the caesarean section on day 28 of pregnancy. Effect of test substance on dams and embryonal development of fetuses were examined. 1. No treatment-related changes in clinical signs, food consuption, body weight and necropsy findings of dams were observed.

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A STUDY ON THE RECOMBINANT HUMAN INTERFERON ${\alpha}$A(LBD-007) FOR PRIMARY EYE AND SKIN IRRITATION IN RABBITS

  • Park, Jong-Il;Kim, Sung-Hoon;Han, Sang-Seop;Roh, Jung-Koo
    • Toxicological Research
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    • 제9권1호
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    • pp.119-123
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    • 1993
  • LBD-007, a newly developed recombinant human interferon ${\alpha}$A, was tested for primary eye and skin irritation in male New Zealand White rabbits. In the primary eye irritation test, 0.1ml of a solution of LBD-007 was instilled into the eye. In rinsing group, the eye was washed with water 30 seconds after instillation. No reaction was observed at the cornea, iris and conjunctivae by LBD-007. In the primary skin irritation test, LBD-007 was applied to the back of rabbits for 24 hours. Primary irritation index was "0" in test and control sites of all animals. Thus LBD-007 was evaluated as a non-irritant on the basis of the criteria of Draize et al.,(1994).

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TERATOGENICITY STUDY OF RECOMBINANT HUMAN INTERFERON alpha A (LBD-007) IN RATS

  • Chun, Moon-Koo;Kim, Sung-Hoon;Roh, Jung-Koo;Han, Sang-Seop
    • Toxicological Research
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    • 제9권1호
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    • pp.83-98
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    • 1993
  • LBD-007, a newly developed recombinant human interferon alpha A, was at dose levels of 0, 3 $\times$ $10^6$, 6 $\times$ $10^6$ and 12 $\times$ $10^6$ IU/kg/day administered subctaneously to pregnant Sprague-Dawley rats during the organogenetic period. Ethylenethiourea was used as a positive control. 2/3 of dams per group were subjected to caesarean section on day 20 of pregnancy and the remaining 10 dams per group were allowed to deliver. Effects of test substance on dams, embryonal development development of F1 fetuses, as well as growth, behaviour and mating performance of F1 offspring were examined. 1. No treatment-related changes in clinical signs, food consumption, body weight and necropsy findings of dams were observed.

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