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Characterisation of the antiviral RNA interference response to Toscana virus in sand fly cells

The result's identifiers

  • Result code in IS VaVaI

    <a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11310%2F23%3A10462138" target="_blank" >RIV/00216208:11310/23:10462138 - isvavai.cz</a>

  • Result on the web

    <a href="https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=fp5FyzNWRO" target="_blank" >https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=fp5FyzNWRO</a>

  • DOI - Digital Object Identifier

    <a href="http://dx.doi.org/10.1371/journal.ppat.1011283" target="_blank" >10.1371/journal.ppat.1011283</a>

Alternative languages

  • Result language

    angličtina

  • Original language name

    Characterisation of the antiviral RNA interference response to Toscana virus in sand fly cells

  • Original language description

    Toscana virus (TOSV) (Bunyavirales, Phenuiviridae, Phlebovirus, Toscana phlebovirus) and other related human pathogenic arboviruses are transmitted by phlebotomine sand flies. TOSV has been reported in nations bordering the Mediterranean Sea among other regions. Infection can result in febrile illness as well as meningitis and encephalitis. Understanding vector-arbovirus interactions is crucial to improving our knowledge of how arboviruses spread, and in this context, immune responses that control viral replication play a significant role. Extensive research has been conducted on mosquito vector immunity against arboviruses, with RNA interference (RNAi) and specifically the exogenous siRNA (exo-siRNA) pathway playing a critical role. However, the antiviral immunity of phlebotomine sand flies is less well understood. Here we were able to show that the exo-siRNA pathway is active in a Phlebotomus papatasi-derived cell line. Following TOSV infection, distinctive 21 nucleotide virus-derived small interfering RNAs (vsiRNAs) were detected. We also identified the exo-siRNA effector Ago2 in this cell line, and silencing its expression rendered the exo-siRNA pathway largely inactive. Thus, our data show that this pathway is active as an antiviral response against a sand fly transmitted bunyavirus, TOSV. Author summaryToscana virus (TOSV) is a bunyavirus that is transmitted to humans through the bite of phlebotomine sand flies. Examining the immune responses that control arboviruses in their vectors is critical for understanding how these organisms control infection, as this may affect transmission. The exogenous siRNA (exo-siRNA) pathway is a critical antiviral immune response in mosquitoes, but much less is known about the pathway in sand flies. Here we show that a functional exo-siRNA pathway exists in a sand fly-derived cell line and that it is active as a response to TOSV infection. These findings improve our understanding of antiviral immunity in vectors in general, and phlebotomine sand flies in particular.

  • Czech name

  • Czech description

Classification

  • Type

    J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database

  • CEP classification

  • OECD FORD branch

    10600 - Biological sciences

Result continuities

  • Project

    <a href="/en/project/LX22NPO5103" target="_blank" >LX22NPO5103: National Institute of Virology and Bacteriology</a><br>

  • Continuities

    P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Others

  • Publication year

    2023

  • Confidentiality

    S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Data specific for result type

  • Name of the periodical

    PLoS Pathogens

  • ISSN

    1553-7366

  • e-ISSN

    1553-7374

  • Volume of the periodical

    19

  • Issue of the periodical within the volume

    3

  • Country of publishing house

    US - UNITED STATES

  • Number of pages

    18

  • Pages from-to

    e1011283

  • UT code for WoS article

    000962365700007

  • EID of the result in the Scopus database

    2-s2.0-85152975641