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Alphavirus Transducing System: Tools for Visualizing Infection in Mosquito Vectors
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Sindbis virus: propagation, quantification, and storage.

Raquel Hernandez1, Christine Sinodis, Dennis T Brown

  • 1North Carolina State University, Raleigh, North Carolina, USA.

Current Protocols in Microbiology
|September 5, 2008
PubMed
Summary

Sindbis virus, an Alphavirus, efficiently infects both insect and vertebrate cells. Its broad host range and genetic manipulability make it a valuable tool for studying virus-host interactions.

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Area of Science:

  • Virology
  • Molecular Biology
  • Arbovirology

Background:

  • Sindbis virus, a prototype Alphavirus, exhibits a wide host range, necessitating replication in divergent invertebrate and vertebrate hosts.
  • The virus plays a crucial role in the complex transmission cycle between insect vectors and vertebrate hosts.

Purpose of the Study:

  • To highlight the adaptability of Sindbis virus to replicate across diverse biological systems.
  • To underscore the utility of Sindbis virus as a model organism in laboratory research.

Main Methods:

  • Culturing Sindbis virus in various vertebrate and invertebrate cell lines.
  • Titration of viral infectivity using mammalian and mosquito cell lines.
  • Genetic manipulation facilitated by full-length cDNA clones and infectious RNA synthesis.

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  • Expression of RNA mutants in selected cell lines via electroporation.

    • Main Results:

    • Sindbis virus achieves high titers in a broad spectrum of cultured cells from both vertebrate and invertebrate origins.
    • Established methods allow for straightforward infectivity titration in multiple cell types.
    • Availability of cDNA clones enables genetic modification and the study of viral mutants.

    Conclusions:

    • Sindbis virus's broad host range and amenability to genetic manipulation make it an exceptional model for virological research.
    • The virus serves as a powerful tool for investigating molecular mechanisms of replication and host interactions in both invertebrate and vertebrate systems.