Enterovirus 71 virion-associated galectin-1 facilitates viral replication and stability

Pei Huan Lee, Chia Ming Liu, Tzong Shiann Ho, Yi Che Tsai, Chi Cheng Lin, Ya Fang Wang, Yuh Ling Chen, Chun Keung Yu, Shih Min Wang, Ching Chuan Liu, Ai Li Shiau, Huan Yao Lei, Chih Peng Chang

研究成果: Article同行評審

23 引文 斯高帕斯(Scopus)

摘要

Enterovirus 71 (EV71) infection causes a myriad of diseases from mild hand-foot-and-mouth disease or herpangina to fatal brain stem encephalitis complicated with pulmonary edema. Several severe EV71 endemics have occurred in Asia-Pacific region, including Taiwan, and have become a serious threat to children' s health. EV71 infection is initiated by the attachment of the virion to the target cell surface. Although this process relies primarily upon interaction between viruses and cell surface receptors, soluble factors may also influence the binding of EV71 to host cells.Galectin-1 has been reported to participate in several virus infections, but is not addressed in EV71. In this study, we found that the serum levels of galectin-1 in EV71-infected children were higher than those in non-infected people. In EV71 infected cells, galectin-1 was found to be associated with the EV71 VP1 and VP3 via carbohydrate residues and subsequently released and bound to another cell surface along with the virus. EV71 propagated from galectin-1 knockdown SK-N-SH cells exhibited lower infectivity in cultured cells and less pathogenicity in mice than the virus propagated from parental cells. In addition, this galectin-1-free EV71 virus was sensitive to high temperature and lost its viability after long-term storage, which could be restored following supplement of recombinant galectin-1. Taken together, our findings uncover a new role of galectin-1 in facilitating EV71 virus infection.

原文English
文章編號e0116278
期刊PloS one
10
發行號2
DOIs
出版狀態Published - 2015 2月 23

All Science Journal Classification (ASJC) codes

  • 多學科

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