Enterovirus 71 (EV71) is a major causative agent of hand-foot-and-mouth disease (HFMD). The clinical severity of EV71central nerve system (CNS) infection is mostly in children less than 5 years-old. Recently, the twoglycosylated membrane proteins SCARB2 and PSGL-1 have been identifiedas the cellular and functional receptors of EV71.But the role of glycosylation in EV71 infection remainsunclear. In this study, we demonstrated thatthe attachment of EV71 to two susceptible cell lines werediminished after the removal of cell surface sialic acids. Pre-incubatecells with sialic acid specific lectins, MAA and SNA,reducedthe binding of EV71. Additionally, we found that SCARB2 was a sialylated glycoprotein,andthe interaction of SCARB2and EV71was decreased after desialylation. Based on these results, we concluded that the attachment of EV71 to cell surface was assisted bysialic acids.Cell surface sialylation should be a key regulator that facilitates the binding and infection of EV71.
저자
Pei-Yi Su [ Institute ofBasic Medical Sciences, Center of Infectious Disease and Signaling Research, National Cheng Kung University,Tainan, Taiwan ]
Yueh-Tung Liu [ Department of Medical Laboratory Science and Biotechnology, Blood Bank, Kaohsiung Veterans General Hospital, Kaohsiung, Taiwan ]
Chuan-Fa Chang [ Department of Medical Laboratory Science and Biotechnology, Institute of Basic Medical Sciences, Center of Infectious Disease and Signaling Research, National Cheng Kung University,Tainan, Taiwan ]
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.