Type I interferon receptor (IFNAR2) deficiency reveals Zika virus cytopathicity in human macrophages and microglia
Macrophages are key target cells of Zika virus (ZIKV) infection, implicated as a viral reservoir seeding sanctuary sites such as the central nervous system and testes. This rests on the apparent ability of macrophages to sustain ZIKV replication without experiencing cytopathic effects. ZIKV infectio...
| Main Authors: | , , , , , , , , , , |
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| Format: | Journal article |
| Language: | English |
| Published: |
Frontiers Media
2022
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| _version_ | 1797109423529787392 |
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| author | Hanrath, AT Hatton, CF Gothe, F Browne, C Vowles, J Leary, P Cockell, SJ Cowley, SA James, WS Hambleton, S Duncan, CJA |
| author_facet | Hanrath, AT Hatton, CF Gothe, F Browne, C Vowles, J Leary, P Cockell, SJ Cowley, SA James, WS Hambleton, S Duncan, CJA |
| author_sort | Hanrath, AT |
| collection | OXFORD |
| description | Macrophages are key target cells of Zika virus (ZIKV) infection, implicated as a viral reservoir seeding sanctuary sites such as the central nervous system and testes. This rests on the apparent ability of macrophages to sustain ZIKV replication without experiencing cytopathic effects. ZIKV infection of macrophages triggers an innate immune response involving type I interferons (IFN-I), key antiviral cytokines that play a complex role in ZIKV pathogenesis in animal models. To investigate the functional role of the IFN-I response we generated human induced pluripotent stem cell (iPSC)-derived macrophages from a patient with complete deficiency of <i>IFNAR2</i>, the high affinity IFN-I receptor subunit. Accompanying the profound defect of IFN-I signalling in <i>IFNAR2</i> deficient iPS-macrophages we observed significantly enhanced ZIKV replication and cell death, revealing the inherent cytopathicity of ZIKV towards macrophages. These observations were recapitulated by genetic and pharmacological ablation of IFN-I signalling in control iPS-macrophages and extended to a model of iPS-microglia. Thus, the capacity of macrophages to support noncytolytic ZIKV replication depends on an equilibrium set by IFN-I, suggesting that innate antiviral responses might counterintuitively promote ZIKV persistence <i>via</i> the maintenance of tissue viral reservoirs relevant to pathogenesis. |
| first_indexed | 2024-03-07T07:40:13Z |
| format | Journal article |
| id | oxford-uuid:f2d7c9ba-b443-4554-a64f-f80da3216b34 |
| institution | University of Oxford |
| language | English |
| last_indexed | 2024-03-07T07:40:13Z |
| publishDate | 2022 |
| publisher | Frontiers Media |
| record_format | dspace |
| spelling | oxford-uuid:f2d7c9ba-b443-4554-a64f-f80da3216b342023-04-18T14:33:18ZType I interferon receptor (IFNAR2) deficiency reveals Zika virus cytopathicity in human macrophages and microgliaJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:f2d7c9ba-b443-4554-a64f-f80da3216b34EnglishSymplectic ElementsFrontiers Media2022Hanrath, ATHatton, CFGothe, FBrowne, CVowles, JLeary, PCockell, SJCowley, SAJames, WSHambleton, SDuncan, CJAMacrophages are key target cells of Zika virus (ZIKV) infection, implicated as a viral reservoir seeding sanctuary sites such as the central nervous system and testes. This rests on the apparent ability of macrophages to sustain ZIKV replication without experiencing cytopathic effects. ZIKV infection of macrophages triggers an innate immune response involving type I interferons (IFN-I), key antiviral cytokines that play a complex role in ZIKV pathogenesis in animal models. To investigate the functional role of the IFN-I response we generated human induced pluripotent stem cell (iPSC)-derived macrophages from a patient with complete deficiency of <i>IFNAR2</i>, the high affinity IFN-I receptor subunit. Accompanying the profound defect of IFN-I signalling in <i>IFNAR2</i> deficient iPS-macrophages we observed significantly enhanced ZIKV replication and cell death, revealing the inherent cytopathicity of ZIKV towards macrophages. These observations were recapitulated by genetic and pharmacological ablation of IFN-I signalling in control iPS-macrophages and extended to a model of iPS-microglia. Thus, the capacity of macrophages to support noncytolytic ZIKV replication depends on an equilibrium set by IFN-I, suggesting that innate antiviral responses might counterintuitively promote ZIKV persistence <i>via</i> the maintenance of tissue viral reservoirs relevant to pathogenesis. |
| spellingShingle | Hanrath, AT Hatton, CF Gothe, F Browne, C Vowles, J Leary, P Cockell, SJ Cowley, SA James, WS Hambleton, S Duncan, CJA Type I interferon receptor (IFNAR2) deficiency reveals Zika virus cytopathicity in human macrophages and microglia |
| title | Type I interferon receptor (IFNAR2) deficiency reveals Zika virus cytopathicity in human macrophages and microglia |
| title_full | Type I interferon receptor (IFNAR2) deficiency reveals Zika virus cytopathicity in human macrophages and microglia |
| title_fullStr | Type I interferon receptor (IFNAR2) deficiency reveals Zika virus cytopathicity in human macrophages and microglia |
| title_full_unstemmed | Type I interferon receptor (IFNAR2) deficiency reveals Zika virus cytopathicity in human macrophages and microglia |
| title_short | Type I interferon receptor (IFNAR2) deficiency reveals Zika virus cytopathicity in human macrophages and microglia |
| title_sort | type i interferon receptor ifnar2 deficiency reveals zika virus cytopathicity in human macrophages and microglia |
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