HER2 is over-expressed on the surface of breast cancer cells and involved in the development of cancer tumors by uncontrollable phosphorylation signalling at the early stage of MAPK pathway. Herceptin treatment inhibits such excessive kinase activation upon binding to the three regions of extracellular domain of HER2, thereby disrupting the signal production. However, the cost, the potential side effects and the increased herceptin resistance act as drawbacks of herceptin treatment. Therefore, an alternative therapy for breast cancer has been required. Inspired by the understanding of herceptin interaction with HER2 epitope, we screened DNA aptamers cognitive of a peptide constituting one of the three HER2 epitopes with the use of a monolith-based IMAC SELEX method. This method enables multiple equilibrium stages, high resolution and real-time monitoring during the screening process, thereby greatly increasing the efficiency of hitting HER2 affinity aptamers. Potential applications of HER2 specific aptamers will include hyperthermia, targeted drug delivery, magnetic resonance imaging, detection of blood-level biomarker and so on.
키워드
DNA aptamerHER2 epitopeMonolith-based chromatographic SELEX
저자
Sung-Eun KIM [ School of Chemical Engineering, Sungkyunkwan University, Suwon, 440-746. ]
Phuong T.B. VO [ School of Chemical Engineering, Sungkyunkwan University, Suwon, 440-746. ]
Woo-Seok CHOE [ School of Chemical Engineering, Sungkyunkwan University, Suwon, 440-746. ]
한국생물공학회 [The Korean Society for Biotechnology and Bioengineering]
설립연도
1984
분야
공학>생물공학
소개
이 법인은 생물 공학의 발전과 보급에 이바지하고, 회원 상호 간의 연구 협력과 친목을 도모함을 목적으로 한다
1. 생물공학 분야의 발전을 위한 연구 협력
2. 생물공학의 실용화를 촉진시키기 위한 산학 협동
3. 학술연구 발표회, 강연회, 연수회 등 학술활동의 개최
4. 국,영문 학술지,소식지,학술회의 Proceedings 및 학술도서의 발간
5. 생물공학 발전을 위한 정책 건의
6. 기타 국제 교류 등 본 학회의 목적 달성을 위한 제반 활동
간행물
간행물명
한국생물공학회 학술대회
간기
반년간
수록기간
1985~2013
십진분류
KDC 476DDC 576
이 권호 내 다른 논문 / 한국생물공학회 학술대회 2011년도 한국생물공학회 춘계학술발표대회