J 2014

Neutralizing antibodies can initiate genome release from human enterovirus 71

PLEVKA, Pavel, P.Y. LIM, R. PERERA, J. CARDOSA, A. SUKSATU et. al.

Basic information

Original name

Neutralizing antibodies can initiate genome release from human enterovirus 71

Authors

PLEVKA, Pavel (203 Czech Republic, guarantor, belonging to the institution), P.Y. LIM (458 Malaysia), R. PERERA (840 United States of America), J. CARDOSA (458 Malaysia), A. SUKSATU (840 United States of America), R.J. KUHN (840 United States of America) and M.G. ROSSMANN (840 United States of America)

Edition

Proceedings of the National Academy of Sciences of the United States of America, WASHINGTON, NATL ACAD SCIENCES, 2014, 0027-8424

Other information

Language

English

Type of outcome

Článek v odborném periodiku

Field of Study

10600 1.6 Biological sciences

Country of publisher

United States of America

Confidentiality degree

není předmětem státního či obchodního tajemství

References:

Impact factor

Impact factor: 9.674

RIV identification code

RIV/00216224:14740/14:00079179

Organization unit

Central European Institute of Technology

UT WoS

000330999600029

Keywords in English

DECAY-ACCELERATING FACTOR; CELL ENTRY; CRYSTAL-STRUCTURE; POLIOVIRUS; RECEPTOR; INTERMEDIATE; PICORNAVIRUS; PARTICLE; VIRUS; TRANSITIONS

Tags

International impact, Reviewed
Změněno: 23/2/2015 12:44, Martina Prášilová

Abstract

V originále

Antibodies were prepared by immunizing mice with empty, immature particles of human enterovirus 71 (EV71), a picornavirus that causes severe neurological disease in young children. The capsid structure of these empty particles is different from that of the mature virus and is similar to "A" particles encountered when picornaviruses recognize a potential host cell before genome release. The monoclonal antibody E18, generated by this immunization, induced a conformational change when incubated at temperatures between 4 degrees C and 37 degrees C with mature virus, transforming infectious virions into A particles. The resultant loss of genome that was observed by cryo-EM and a fluorescent SYBR Green dye assay inactivated the virus, establishing the mechanism by which the virus is inactivated and demonstrating that the E18 antibody has potential as an anti-EV71 therapy. The antibody-mediated virus neutralization by the induction of genome release has not been previously demonstrated. Furthermore, the present results indicate that antibodies with genome-release activity could also be produced for other picornaviruses by immunization with immature particles.