Every winter, the influenza virus causes serious respiratory infections, particularly in the young and elderly. Vaccines are available, however it is necessary to receive them annually due to the fact that influenza is able to evade immune surveillance through rapid genetic drift and shift. An annual influenza virus type for vaccine production is prepared by the World Health Organization (WHO). In spite of this, unexpected pandemic influenza viruses may occur, such as the swine H1N1 virus, which appeared in 2009, leaving people exposed to new virus without protection until a specific vaccine is available, approximately 6 months. Here, we established a rapid antibody screening process to develop universal neutralizing antibodies against hetero-subtypic influenza viruses. Peripheral blood mononuclear cells (PBMC) of swine H1N1 convalescent patients were used to identify anti-hemagglutinin antibodies using phage display method and immunospot array assay on a chip (ISAAC). Results showed that several of the candidate antibodies revealed a broad neutralizing effect in hetero subtype influenza viruses. Moreover, this effect was seen not only in H1N1, but also in H2N2 and H5N1. In addition, prophylactic and therapeutic effects against H5N1 (A/VietNam/03/04) and a prophylactic effect against H1N1 (A/California/04/09) was observed in mice. In conclusion, we have developed universal neutralizing monoclonal antibodies against various subtypes of influenza viruses to use as an anti-influenza agent for prophylaxis or therapeutic treatment.
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