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ADAM15 Participates in Tick-Borne Encephalitis Virus Replication.

Qi Yang1,2, Rongjuan Pei2, Yun Wang2

  • 1Department of Gastroenterology, Guangzhou Women and Children's Medical Center, Guangzhou, China yangqi@wh.iov.cn chenjz@wh.iov.cn.

Journal of Virology
|November 19, 2020
PubMed
Summary

This study reveals that ADAM15 (a disintegrin and metalloproteinase 15) is crucial for tick-borne encephalitis virus (TBEV) replication. Disrupting ADAM15 impairs TBEV assembly and production, offering new insights into viral pathogenesis.

Keywords:
ADAM15TBEVassemblyreplication

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Area of Science:

  • Virology
  • Cell Biology
  • Neuroscience

Background:

  • Tick-borne encephalitis virus (TBEV) causes severe neurological diseases like meningitis and encephalitis.
  • The precise mechanisms of TBEV pathogenesis and its life cycle remain incompletely understood.
  • Increasing tick populations and geographic range expansion heighten public health concerns regarding TBEV transmission.

Purpose of the Study:

  • To elucidate the role of host factors in TBEV replication and pathogenesis.
  • To investigate the function of ADAM15 (a disintegrin and metalloproteinase 15) in the TBEV life cycle.
  • To identify potential therapeutic targets for TBEV infection.

Main Methods:

  • RNA interference (RNAi) screening to identify host factors involved in TBEV infection.
  • Knockdown and knockout experiments to assess the function of ADAM15.
  • RNA-sequencing to analyze cellular changes induced by TBEV infection.
  • Characterization of ADAM15's subcellular localization following TBEV infection.

Main Results:

  • Knockdown or knockout of ADAM15 significantly inhibited TBEV replication and assembly.
  • TBEV infection altered the subcellular localization of ADAM15.
  • ADAM15 plays a nonredundant role in TBEV infection, impacting membrane reorganization and viral replication.
  • TBEV infection induces the formation of replication organelles, dependent on ADAM15-mediated cellular changes.

Conclusions:

  • ADAM15 is a critical host factor essential for efficient TBEV replication and production.
  • TBEV infection modulates ADAM15 localization, which is integral to viral replication processes.
  • Targeting ADAM15 presents a promising strategy for developing novel antiviral therapies against TBEV.