Human Sertoli cells support high levels of Zika virus replication and persistence

Sci Rep. 2018 Apr 3;8(1):5477. doi: 10.1038/s41598-018-23899-x.

Abstract

Zika virus is a teratogenic mosquito-transmitted flavivirus that is associated with birth defects in newborns and Guillain-Barré syndrome in adults. The virus can also be sexually transmitted, but currently, very little is known about the cell types supporting virus replication and persistence in human testes. Using primary cell cultures, we observed that Sertoli but not Leydig cells are highly susceptible to Zika virus infection, a process that is dependent on the TAM family receptor Axl. In cell culture, Sertoli cells could be productively infected with Zika virus for at least 6-weeks. Infection of Sertoli cells resulted in dramatic changes to the transcriptional profile of these cells. The most upregulated mRNA in infected cells was basic fibroblast growth factor (FGF2), a cytokine that was found to enhance Zika virus replication and support viral persistence. Together these findings provide key insights into understanding how Zika virus persists in the male reproductive tract and in turn may aid in developing antiviral therapies or strategies to minimize sexual transmission of this pathogen.

Publication types

  • Research Support, N.I.H., Extramural
  • Research Support, Non-U.S. Gov't

MeSH terms

  • A549 Cells
  • Animals
  • Axl Receptor Tyrosine Kinase
  • Fibroblast Growth Factor 2 / metabolism
  • Gene Expression Regulation
  • Humans
  • Male
  • Mice
  • Proto-Oncogene Proteins / metabolism
  • Receptor Protein-Tyrosine Kinases / metabolism
  • Sertoli Cells / cytology
  • Sertoli Cells / metabolism
  • Sertoli Cells / virology*
  • Signal Transduction
  • Virus Internalization
  • Virus Replication*
  • Zika Virus / physiology*

Substances

  • Proto-Oncogene Proteins
  • Fibroblast Growth Factor 2
  • Receptor Protein-Tyrosine Kinases
  • Axl Receptor Tyrosine Kinase

Grants and funding