Interferon epsilon promotes HIV restriction at multiple steps of viral replication

Albert Garcia-Minambres, Sahar G Eid, Niamh E. Mangan, Corinna Pade, San S Lim, Antony Y Matthews, Nicole A. de Weerd, Paul J. Hertzog, Mak Johnson

Research output: Contribution to journalArticleResearchpeer-review

Abstract

Interferon epsilon (IFNɛ) is a type I IFN that is expressed constitutively in the female reproductive tract (FRT), and contributes to protection in models of sexually transmitted infections. Using multiple cell systems, including reporter cell lines and activated peripheral blood lymphocytes (PBLs), we show that recombinant IFNɛ impairs HIV infection at stage(s) post HIV entry and up to the translation of viral proteins. Consistent with this, IFNɛ upregulated a number of host cell restriction factors that block HIV at these stages of the replication cycle. The potency of IFNɛ induction of these HIV restriction factors was comparable to conventional type I IFNs, namely IFNα and IFNβ. IFNɛ also significantly reduced the infectivity of progeny virion particles likely by inducing expression of HIV restriction factors, such as IFITM3, which act at that stage of infection. Thus, our data demonstrate that human IFNɛ suppresses HIV replication at multiple stages of infection.Immunology and Cell Biology advance online publication, 3 January 2017; doi:10.1038/icb.2016.123.
Original languageEnglish
Pages (from-to)478-483
Number of pages6
JournalImmunology and Cell Biology
Volume95
Issue number5
DOIs
Publication statusPublished - May 2017

Cite this

Garcia-Minambres, Albert ; Eid, Sahar G ; Mangan, Niamh E. ; Pade, Corinna ; Lim, San S ; Matthews, Antony Y ; de Weerd, Nicole A. ; Hertzog, Paul J. ; Johnson, Mak. / Interferon epsilon promotes HIV restriction at multiple steps of viral replication. In: Immunology and Cell Biology. 2017 ; Vol. 95, No. 5. pp. 478-483.
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Interferon epsilon promotes HIV restriction at multiple steps of viral replication. / Garcia-Minambres, Albert; Eid, Sahar G; Mangan, Niamh E.; Pade, Corinna; Lim, San S; Matthews, Antony Y; de Weerd, Nicole A.; Hertzog, Paul J.; Johnson, Mak.

In: Immunology and Cell Biology, Vol. 95, No. 5, 05.2017, p. 478-483.

Research output: Contribution to journalArticleResearchpeer-review

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