a 2024

Illuminating enteroviruses 71 RNA replication sites

NEPOVÍMOVÁ, Lucie; Milan EŠNER and Pavel PLEVKA

Basic information

Original name

Illuminating enteroviruses 71 RNA replication sites

Authors

NEPOVÍMOVÁ, Lucie (203 Czech Republic, belonging to the institution); Milan EŠNER (203 Czech Republic, belonging to the institution) and Pavel PLEVKA (203 Czech Republic, belonging to the institution)

Edition

IUMS - International Union of Microbiological Societies Conference, Florence 2024, 2024

Other information

Language

English

Type of outcome

Konferenční abstrakta

Country of publisher

Italy

Confidentiality degree

is not subject to a state or trade secret

References:

RIV identification code

RIV/00216224:14740/24:00139135

Organization

Středoevropský technologický institut – Repository – Repository

Keywords in English

enterovirus; HFMD; antiviral therapies; replication; fluorescent reporter; fluorescent microscope

Links

EH22_008/0004607, research and development project.
Changed: 26/4/2025 00:50, RNDr. Daniel Jakubík

Abstract

V originále

Background and Aims Enterovirus 71 (EV71), a member of the Picornaviridae family, poses a significant threat as a cause of hand-foot-and-mouth disease (HFMD), primarily impacting small children. The potential for severe neurological complications, leading to mortality rates of up to 19 %. With the escalating outbreaks in the Asia-Pacific region, the exploration of novel therapeutic approaches is indispensable. While current vaccines target specific serotypes, their efficacy lacks evidence of cross-protection. This underscores the importance of investigating targeted antiviral therapies. However, progress is hindered by gaps in understanding EV71’s replication cycle. This study aims to examine the unmapped facets of enterovirus RNA replication coupling with genome packaging and viral assembly. Methods We present the establishment of a fluorescent reporter that enables specific EV71 replication site labelling without altering the viral genome, hence preserving the natural course of genome replication. This system will serve as a crucial tool for guiding subsequent research phases, including correlative light and electron microscopy for precise lamella preparation and cryo-electron tomography data collection. Results In our preliminary results, we utilised AlphaFold-guided experimental design to inform the development of our fluorescent reporter system. The reporter was successfully cloned, and we are currently testing its functionality on the fluorescence microscope. Conclusions These initial steps mark significant progress towards our goal of visualising EV71 genome replication in situ and gaining insights into its replication mechanisms.

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