4th 2009 Annual Meeting of Korean Society for Glycoscience in 2009 (2009.11)바로가기
페이지
pp.63-63
저자
Hyeoung-jwa Choi, Jin-Yeon Park, Miglena G. V. Prabagar, Woo-Sung Choi, Young-Sun Kang
언어
영어(ENG)
URL
https://www.earticle.net/Article/A192552
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원문정보
초록
영어
Capsular polysaccharides (CPSs) of Streptococcus pneumoniae are representative T-lymphocyte independent type 2 (TI-2) antigens, causing the immune escape from the host and majority of meningitis in human adults. However, the detail mechanism of this immune escape by S .pneumoniae has been poorly understood. Serotype 14 CPS taken by SIGN-R1+ macrophages in the splenic maginal zone is regurgitated to follicular dendritic cells (FDCs). It was consistent with polysaccharide dextran, another ligand for SIGN-R1, and its regurgitation was confirmed in SIGN-R1 transfectants in vitro. While understanding the regurgitation of dextran, we found that SIGN-R1 bound to Binding immunoglobulin protein (BiP), a well-characterized endoplasmic reticulum (ER) chaperone, primarily on the cell surface. Furthermore, SIGN-R1+ macrophages in the maginal zone showed the higher expression of BiP than other macrophages in the red pulp, implying the important role of SIGN-R1 binding to BiP in vivo. Surprisingly, after the treatment of dextan in vitro or in vivo, dextran was rapidly translocated into the ER membrane and subsequently regurgitated here, depending on SIGN-R1 and complement C3. Therefore, these results demonstrated that the interaction of SIGN-R1 with Bip mediates the regurgitation of polysaccharide dextran through the ER membrane, demanding further studies to understand the reasons of the non-immunogenecity of bacterial polysaccharides.
저자
Hyeoung-jwa Choi [ Dept. Biomedical Science & Technology, Institute of Biomedical Science & Technology (IBST), Konkuk University ]
Jin-Yeon Park [ Dept. Biomedical Science & Technology, Institute of Biomedical Science & Technology (IBST), Konkuk University ]
Miglena G. V. Prabagar [ Dept. Biomedical Science & Technology, Institute of Biomedical Science & Technology (IBST), Konkuk University ]
Woo-Sung Choi [ Dept. Biomedical Science & Technology, Institute of Biomedical Science & Technology (IBST), Konkuk University ]
Young-Sun Kang [ Dept. Biomedical Science & Technology, Institute of Biomedical Science & Technology (IBST), Konkuk University ]
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.
간행물
간행물명
한국당과학회 학술대회
간기
연간
수록기간
2006~2022
십진분류
KDC 517DDC 614
이 권호 내 다른 논문 / 한국당과학회 학술대회 4th 2009 Annual Meeting of Korean Society for Glycoscience in 2009