Ki Bum Kim, Yang Joo Kang, Se Ra Park, Do-Sun Kim, Kinarm Ko, Daniel Ponndorf, Kisung Ko
언어
영어(ENG)
URL
https://www.earticle.net/Article/A406595
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원문정보
초록
영어
Immunization with the highly expressed tumor-associated antigen GA733 glycoprotein in colorectal cancer is considered to a promising strategy for cancer prevention and treatment. We cloned a fusion gene of GA733 and immunoglobulin Fc fragment (GA733-Fc), and that of GA733-Fc and an endoplasmic reticulum retention motif (GA733-FcK) into the Cowpea mosaic virus (CPMV)-based transient plant expression vector, pEAQ-HT. Agrobacterium tumefaciens (LBA4404) transformed with the vectors pEAQ-HT-GA733-Fc and pEAQ-HTGA733- FcK was infiltrated into the leaves of Nicotiana benthamiana plants. To optimize harvesting of leaf to express therapeutic glycoproteins both spatially and temporally, protein expression levels at various leaf positions (top, middle, and base) and days post-infiltration (dpi) were investigated. The protein expression was confirmed by western blot, and GA733-Fc and GA733-FcK proteins were successfully purified from infiltrated N. benthamiana leaves. The binding affinity of purified GA733-Fc and GA733-FcK with Recombinant Human Fcγ RI/CD64 protein (R&D Systems, MN) were measured by SPR spectrometry. Therefore, a functional GA733-Fc colorectal cancer vaccine protein can be transiently expressed using a CPMV virus-based vector, with an optimized expression time and leaf position after penetration. This work was carried out with the support of “Cooperative Research Program for Agriculture Science & Technology Development (Project No. PJ0162662021)” Rural Development Administration, Republic of Korea.
Ki Bum Kim [ Department of Medicine, Therapeutic Protein Engineering Lab, College of Medicine, Chung-Ang University ]
Yang Joo Kang [ Department of Medicine, Therapeutic Protein Engineering Lab, College of Medicine, Chung-Ang University ]
Se Ra Park [ Department of Medicine, Therapeutic Protein Engineering Lab, College of Medicine, Chung-Ang University ]
Do-Sun Kim [ Vegetable Research Division, National Institute of Horticultural and Herbal Science, Rural Development Administration, Wanju-gun, South Korea ]
Kinarm Ko [ Department of Stem Cell Biology, Konkuk University School of Medicine, Seoul, Korea ]
Daniel Ponndorf [ Department of Biological Chemistry, John Innes Centre, Norwich Research Park, Colney, Norwich, NR47UH, UK ]
Kisung Ko [ Department of Medicine, Therapeutic Protein Engineering Lab, College of Medicine, Chung-Ang University ]
Corresponding Author
본 학회는 화학, 생화학, 분자생물학, 미생물학, 식품공학, 의학, 약학, 유전공학 및 생물공학, 환경 및 기타 공업 등 전 분야의 탄수화물관련 이론과 기술을 연구 발전시키고 산학협동을 통해 이를 보급하여 국내 관련 산업의 발전 및 국민생활의 과학화에 기여하고자 하며, 이러한 목표와 비젼의 실현을 위해 회원들이 적극적인 참여와 활동을 전개하고자 한다.