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      • KCI등재

        식물기반 치료용 항체생산

        김영관,소양,박다영,김현순,전재흥,추영국,고기,Kim, Young-Kwan,So, Yang-Kang,Park, Da-Young,Kim, Hyun-Soon,Jeon, Jae-Heung,Choo, Young-Kug,Ko, Ki-Sung 한국식물생명공학회 2010 식물생명공학회지 Vol.37 No.3

        Antibodies are powerful and versatile tools to play a critical role in the diagnosis and treatment of many diseases. Their application has been enhanced significantly with the advanced recombinant DNA and heterologonous expression technologies, allowing to produce immunotherapeutic proteins with improved biofunctional properties. However, with currently available technologies, mammalian cell-based therapeutic antibody production, as an alternative for production in humans and animals, is often not plentiful for passive immunotherapeutics in treatment of many diseases. Recently, plant expression systems for therapeutic antibodies have become well-established. Thus, plants have been considered to provide an attractive alternative production system for therapeutic antibodies, as plants have several advantages such as the lack of human pathogens, and low cost of upstream production and flexible scale-up of highly valuable recombinant glycoproteins. Recent advances in modification of posttranslational processing for human-like glycosylation in transgenic plants will make it possible that plant can become a suitable protein expression system over the animal cellbased current production system. This review will discuss recent advances in plant expression technology and issues for their application to therapeutic antibody production.

      • KCI등재

        Oryza glaberrima 계통과 Oryza sativa 품종의 등숙기간중 SPAD치와 광합성속도의 변화

        尹榮煥,礒田昭弘,野島 博,高崎康夫 韓國作物學會 1997 Korean journal of crop science Vol.42 No.6

        O. glaberrima 10계통과 O. sativa 10품종을 공시하여 출수후 1, 3, 5주에 주간의 SPAD치(엽록소함량)와 광합성속도를 측정하였다. O. glaberrima 계통은 출수후 1주에서 3주, 5주까지 SPAD치 및 광합성속도가 급격히 저하하는 경향을 나타내었다. O. sativa 품종은 O. glaberrima 계통보다 저하속도가 적고 특히 출수후 1주에서 출수후 3주까지의 저하가 적었다. O. glaberrima 계통과 O. sativa 품종의 평균치를 비교하면 엽록소함량, 광합성속도 모두 출수후 1주에는 양종간에 유의차가 없었으나 출수후 3주이후 O. glaberrima의 계통이 유의적으로 적었다. SPAD치와 광합성속도의 관계는 O. glaberrima 계통은 출수후 1주와 출수후 3주에, O.sativa 품종은 출수후 1주와 출수후 5주에 유의한 정의 상관관계가 있었다. SPAD치 감소속도와 광합성 감소속도의 관계는 출수후 1주에서 출수후 3주의 기간에는 양종 모두 유의한 정의 상관관계가 있었다. 출수후 3주에서 출수후 3주까지는 O. glaberrima 계통은 유의한 정의 상관이 있었으나 O. sativa 품종은 유의차가 없었다. 이상이 결과 O. glaberrima 계통에서는 엽록소함량의 급격한 저하가 광합성속도 감소에 관여하고 있는 것으로 확인되었으나 O. sativa 품종은 엽록소함량의 저하가 반드시 광합성속도의 저하요인이 아님이 밝혀졌다. The process of the senescence in Oryza glaberrima Steud. strains and Oryza sativa L. cultivars were examined in terms of SPAD value(chlorophyll content) and photosynthetic rate. SPAD values and photosynthetic rates of flag leaves for 10 genotypes of each species was measured at the 1, 3 and 5 weeks after heading. SPAD values and photosynthetic rates of O. glaberrima strains tended to decrease rapidly after heading. O. sativa cultivars showed slower decrease as compared to O. glaberrima strains, in particular during the period from 1 to 3 weeks after heading. Although there was no significant difference between the two species in the mean value of photosynthetic rate and SPAD value at 1 weeks after heading, O. glaberrima had lower values after 3 weeks after heading. There were significant positive correlation coefficients between the photosynthetic rate and the SPAD value at 1 and 3 weeks after heading for O. glaberrima strains, and at 1 and 5 weeks after heading for O. sativa cultivars. There were significant positive correlation between the decreasing rates of the photosynthetic rates and the decreasing rates of the SPAD values at the period from the 1 to 3 weeks after heading for both species. At the period from 3 to 5 weeks after heading, only O. glaberrima showed a significant correlation between two traits, indicating that rapid decrease in chlorophyll content would affect the photosynthesis in O. glaberrima.

      • KCI등재

        식물기반 치료용 항체생산

        김영관,김현순,전재홍,추영국,고기,소양,박다영 한국식물생명공학회 2010 JOURNAL OF PLANT BIOTECHNOLOGY Vol.37 No.3

        Antibodies are powerful and versatile tools to play a critical role in the diagnosis and treatment of many diseases. Their application has been enhanced significantly with the advanced recombinant DNA and heterologonous expression technologies, allowing to produce munotherapeutic proteins with improved biofunctional properties. However, with currently available technologies, mammalian cell-based therapeutic antibody production, as an alternative for production in humans and animals, is often not plentiful for passive immunotherapeutics in treatment of many diseases. Recently, plant expression systems for therapeutic antibodies have become well-established. Thus, plants have been considered to provide an attractive alternative production system for therapeutic antibodies, as plants have several advantages such as the lack of human pathogens, and low cost of upstream production and flexible scale-up of highly valuable recombinant glycoproteins. Recent advances in modification of posttranslational processing for human-like glycosylation in transgenic plants will make it possible that plant can become a suitable protein expression system over the animal cellbased current production system. This review will discuss recent advances in plant expression technology and issues for their application to therapeutic antibody production.

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