State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangdong Key Laboratory of Nasopharyngeal Carcinoma Diagnosis and Therapy, Sun Yat-sen University Cancer Center, Guangzhou, China.
Department of Pathology, Sun Yat-sen University Cancer Center, Guangzhou, China.
PLoS Pathog. 2023 May 5;19(5):e1011304. doi: 10.1371/journal.ppat.1011304. eCollection 2023 May.
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.
人巨细胞病毒(HCMV)感染与胶质母细胞瘤有关,后者是最常见且侵袭性最强的原发性脑肿瘤,但潜在的感染机制尚未完全阐明。在这里,我们发现 EphA2 在胶质母细胞瘤中上调,并与患者的不良预后相关。 EphA2 的沉默抑制,而过表达促进 HCMV 感染,表明 EphA2 是 HCMV 感染神经母细胞瘤细胞的关键细胞因子。在机制上,EphA2 与 HCMV gH/gL 复合物结合以介导膜融合。重要的是,EphA2 的抑制剂或针对 EphA2 的抗体可抑制胶质母细胞瘤细胞中的 HCMV 感染。此外,EphA2 抑制剂还可削弱最佳神经母细胞瘤类器官中的 HCMV 感染。总之,我们提出 EphA2 是 HCMV 感染神经母细胞瘤细胞的关键细胞因子,也是干预的潜在靶点。