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Zika-Virus-Encoded NS2A Disrupts Mammalian Cortical Neurogenesis by Degrading Adherens Junction Proteins.

Cell stem cell | 2017

Zika virus (ZIKV) directly infects neural progenitors and impairs their proliferation. How ZIKV interacts with the host molecular machinery to impact neurogenesis in vivo is not well understood. Here, by systematically introducing individual proteins encoded by ZIKV into the embryonic mouse cortex, we show that expression of ZIKV-NS2A, but not Dengue virus (DENV)-NS2A, leads to reduced proliferation and premature differentiation of radial glial cells and aberrant positioning of newborn neurons. Mechanistically, in vitro mapping of protein-interactomes and biochemical analysis suggest interactions between ZIKA-NS2A and multiple adherens junction complex (AJ) components. Functionally, ZIKV-NS2A, but not DENV-NS2A, destabilizes the AJ complex, resulting in impaired AJ formation and aberrant radial glial fiber scaffolding in the embryonic mouse cortex. Similarly, ZIKA-NS2A, but not DENV-NS2A, reduces radial glial cell proliferation and causes AJ deficits in human forebrain organoids. Together, our results reveal pathogenic mechanisms underlying ZIKV infection in the developing mammalian brain.

Pubmed ID: 28826723 RIS Download

Additional research tools detected in this publication

None found

Associated grants

  • Agency: NIGMS NIH HHS, United States
    Id: R01 GM111514
  • Agency: NINDS NIH HHS, United States
    Id: P01 NS097206
  • Agency: NINDS NIH HHS, United States
    Id: R35 NS097370
  • Agency: NIGMS NIH HHS, United States
    Id: T32 GM007814
  • Agency: NIMH NIH HHS, United States
    Id: R21 MH087874
  • Agency: NIGMS NIH HHS, United States
    Id: T32 GM007309
  • Agency: NIGMS NIH HHS, United States
    Id: T32 GM007445
  • Agency: NIMH NIH HHS, United States
    Id: R33 MH087874
  • Agency: NINDS NIH HHS, United States
    Id: R37 NS047344
  • Agency: NIMH NIH HHS, United States
    Id: U19 MH106434
  • Agency: NINDS NIH HHS, United States
    Id: R25 NS065729
  • Agency: NINDS NIH HHS, United States
    Id: K12 NS098482
  • Agency: NIEHS NIH HHS, United States
    Id: R21 ES021957
  • Agency: NINDS NIH HHS, United States
    Id: R21 NS095348
  • Agency: NIAID NIH HHS, United States
    Id: R21 AI119530
  • Agency: NINDS NIH HHS, United States
    Id: R56 NS047344
  • Agency: NINDS NIH HHS, United States
    Id: R01 NS048271
  • Agency: NINDS NIH HHS, United States
    Id: R01 NS051630
  • Agency: NIAID NIH HHS, United States
    Id: U19 AI131130
  • Agency: NIMH NIH HHS, United States
    Id: R01 MH105128

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This is a list of tools and resources that we have found mentioned in this publication.


ZO-1 Polyclonal Antibody (antibody)

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RRID:SCR_007370

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RRID:SCR_003070

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RRID:IMSR_CRL:23

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RRID:CVCL_0045

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RRID:AB_2533456

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