MilliporeSigma
  • Home
  • Search Results
  • Single cell analysis reveals human cytomegalovirus drives latently infected cells towards an anergic-like monocyte state.

Single cell analysis reveals human cytomegalovirus drives latently infected cells towards an anergic-like monocyte state.

eLife (2020-01-23)
Miri Shnayder, Aharon Nachshon, Batsheva Rozman, Biana Bernshtein, Michael Lavi, Noam Fein, Emma Poole, Selmir Avdic, Emily Blyth, David Gottlieb, Allison Abendroth, Barry Slobedman, John Sinclair, Noam Stern-Ginossar, Michal Schwartz
ABSTRACT

Human cytomegalovirus (HCMV) causes a lifelong infection through establishment of latency. Although reactivation from latency can cause life-threatening disease, our molecular understanding of HCMV latency is incomplete. Here we use single cell RNA-seq analysis to characterize latency in monocytes and hematopoietic stem and progenitor cells (HSPCs). In monocytes, we identify host cell surface markers that enable enrichment of latent cells harboring higher viral transcript levels, which can reactivate more efficiently, and are characterized by reduced intrinsic immune response that is important for viral gene expression. Significantly, in latent HSPCs, viral transcripts could be detected only in monocyte progenitors and were also associated with reduced immune-response. Overall, our work indicates that regardless of the developmental stage in which HCMV infects, HCMV drives hematopoietic cells towards a weaker immune-responsive monocyte state and that this anergic-like state is crucial for the virus ability to express its transcripts and to eventually reactivate.

MATERIALS
Product Number
Brand
Product Description

Sigma-Aldrich
Lipopolysaccharides from Escherichia coli O111:B4, γ-irradiated, BioXtra, suitable for cell culture