EphA2 is a functional entry receptor for HCMV infection of glioblastoma cells

PLoS Pathog. 2023 May 5;19(5):e1011304. doi: 10.1371/journal.ppat.1011304. eCollection 2023 May.

Abstract

Human cytomegalovirus (HCMV) infection is associated with human glioblastoma, the most common and aggressive primary brain tumor, but the underlying infection mechanism has not been fully demonstrated. Here, we show that EphA2 was upregulated in glioblastoma and correlated with the poor prognosis of the patients. EphA2 silencing inhibits, whereas overexpression promotes HCMV infection, establishing EphA2 as a crucial cell factor for HCMV infection of glioblastoma cells. Mechanistically, EphA2 binds to HCMV gH/gL complex to mediate membrane fusion. Importantly, the HCMV infection was inhibited by the treatment of inhibitor or antibody targeting EphA2 in glioblastoma cells. Furthermore, HCMV infection was also impaired in optimal glioblastoma organoids by EphA2 inhibitor. Taken together, we propose EphA2 as a crucial cell factor for HCMV infection in glioblastoma cells and a potential target for intervention.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Cytomegalovirus / physiology
  • Cytomegalovirus Infections*
  • Glioblastoma* / genetics
  • Humans
  • Receptor, EphA2* / genetics
  • Viral Envelope Proteins / metabolism

Substances

  • Viral Envelope Proteins
  • Receptor, EphA2

Grants and funding

This work was supported by the National Natural Science Foundation of China (81830090) to M.S.Z; the National Natural Science Foundation of China (81802729) to Y.L; the National Natural Science Foundation of China (81872224), Guangdong Basic and Applied Basic Research Foundation (2021A1515010734) to H.Z; the National Natural Science Foundation of China (82002128) to L.W. The funders had no role in study design, data collection and analysis, decision to publish, or preparation of the manuscript.