Uncovering a Key Role of ETS1 on Vascular Abnormality in Glioblastoma

Pathol Oncol Res. 2021 Nov 19;27:1609997. doi: 10.3389/pore.2021.1609997. eCollection 2021.ABSTRACTGlioblastoma (GBM) is the most aggressive type of brain tumor. Microvascular proliferation and abnormal vasculature are the hallmarks of the GBM, aggravating disease progression and increasing patient morbidity. Here, we uncovered a key role of ETS1 on vascular abnormality in glioblastoma. ETS1 was upregulated in endothelial cells from human tumors compared to endothelial cells from paired control brain tissue. Knockdown of Ets1 in mouse brain endothelial cells inhibited cell migration and proliferation, and suppressed expression of genes associated with vascular abnormality in GBM. ETS1 upregulation in tumor ECs was dependent on TGFβ signaling, and targeting TGFβ signaling by inhibitor decreased tumor angiogenesis and vascular abnormality in CT-2A glioma model. Our results identified ETS1 as a key factor regulating tumor angiogenesis, and suggested that TGFβ inhibition may suppress the vascular abnormality driven by ETS1.PMID:34867089 | PMC:PMC8641556 | DOI:10.3389/pore.2021.1609997
Source: Pathology Oncology Research - Category: Pathology Authors: Source Type: research