PMID- 34551201 OWN - NLM STAT- MEDLINE DCOM- 20220321 LR - 20220321 IS - 1932-7005 (Electronic) IS - 1932-6254 (Linking) VI - 15 IP - 12 DP - 2021 Dec TI - Brain endothelial cells-derived extracellular vesicles overexpressing ECRG4 inhibit glioma proliferation through suppressing inflammation and angiogenesis. PG - 1162-1171 LID - 10.1002/term.3244 [doi] AB - Esophageal cancer related gene-4 (ECRG4) has been shown to be a candidate tumor suppressor in many tumors, but its role in glioma remains poorly understood. This study aimed to explore whether extracellular vesicles (EVs) derived from brain endothelial cells which overexpressed ECRG4 have anti-tumor effect on gliomas in vivo and in vitro, as well as the possible mechanism. A constructed lentivirus expressing the ECRG4 gene was transfected into the hCMEC/D3 cell line. The EVs were isolated from the cells and characterized by Western blot with exosome markers of CD9, CD63, CD81, Alix. RT-PCR and Western blot were performed to verify ECRG4 expression. 3-(4,5-Dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide and clone formation assays were applied to detect the proliferation of glioma cells incubated with EVs expressing the ECRG4 (ECRG4-exo). The level of inflammatory cytokines and angiogenesis related factors, including nuclear factor kappa-B (NF-kappaB), interleukin (IL)-1beta, IL-6, IL-8, monocyte chemoattractant protein-1 (MCP-1), hypoxia-inducible factor 1-alpha (HIF-1alpha), vascular endothelial growth factor (VEGF) and vascular endothelial growth factor receptor 2 (VEGFR2) levels were detected by ELISA. The T98G cell xenograft mouse model was established and treated with ECRG4-EV. The tumor volume and weight were recorded. p38-MAPK, p-p38-MAPK proteins were determined by Western blot in tumor tissues. As a result, EVs can be internalized into U87MG and T98G cells. ECRG4-EV inhibited U87MG and T98G cell proliferation. ECRG4-EV also inhibited the expression of factors involved in inflammation and angiogenesis. In addition, ECRG4-EVs suppressed tumor growth and decreased the production of inflammatory cytokines through inactivation of p38-MAPK signal pathway. In conclusion, ECRG4-EVsuppresses glioma proliferation through modulating the inflammation and angiogenesis. CI - (c) 2021 John Wiley & Sons Ltd. FAU - Huo, Haoran AU - Huo H AD - Department of Neurosurgery, The Second Hospital of Hebei Medical University, Shijiazhuang, Hebei, China. FAU - Yang, Song AU - Yang S AD - Department of Neurosurgery, The Second Hospital of Hebei Medical University, Shijiazhuang, Hebei, China. FAU - Wu, Haotian AU - Wu H AD - Department of Neurosurgery, The Second Hospital of Hebei Medical University, Shijiazhuang, Hebei, China. FAU - Sun, Yuchen AU - Sun Y AD - Department of Neurosurgery, The Second Hospital of Hebei Medical University, Shijiazhuang, Hebei, China. FAU - Zhao, Ranran AU - Zhao R AD - Department of Hemodialysis, Traditional Chinese Medicine Hospital of Shi Jia Zhuang City, Shijiazhuang, Hebei, China. FAU - Ye, Ruihao AU - Ye R AD - Department of Neurosurgery, The Second Hospital of Hebei Medical University, Shijiazhuang, Hebei, China. FAU - Yan, Dongdong AU - Yan D AD - Department of Neurosurgery, The Second Hospital of Hebei Medical University, Shijiazhuang, Hebei, China. FAU - Shi, Xuefang AU - Shi X AD - Department of Neurosurgery, The Second Hospital of Hebei Medical University, Shijiazhuang, Hebei, China. FAU - Yang, Jiankai AU - Yang J AD - Department of Neurosurgery, The Second Hospital of Hebei Medical University, Shijiazhuang, Hebei, China. LA - eng GR - 21377751D/S&T Program of Hebei/ GR - 19JCZDJC65300(Z)/Beijing-Tianjin-Hebei Province Basic Research Cooperation Project/ GR - F2019206706/Beijing-Tianjin-Hebei Province Basic Research Cooperation Project/ GR - A202103004/Hebei high level Talents Project/ GR - 2020TXJC08/the Hebei Medical University-Hebei Provincial Science and Technology Department Innovation Fund/ GR - Provincial Clinical Medical Talents Project in 2021/ PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20210929 PL - England TA - J Tissue Eng Regen Med JT - Journal of tissue engineering and regenerative medicine JID - 101308490 RN - 0 (ECRG4 protein, human) RN - 0 (Tumor Suppressor Proteins) SB - IM MH - Brain MH - Cell Line, Tumor MH - *Cell Proliferation MH - Endothelial Cells/*metabolism/pathology MH - Extracellular Vesicles/genetics/*metabolism/pathology MH - Glioma/genetics/*metabolism/pathology MH - Humans MH - Neovascularization, Pathologic/genetics/*metabolism/pathology MH - Tumor Suppressor Proteins/genetics/*metabolism OTO - NOTNLM OT - ECRG4 OT - exosome OT - glioma OT - inflammatory factors OT - p38-MAPK EDAT- 2021/09/23 06:00 MHDA- 2022/03/22 06:00 CRDT- 2021/09/22 17:35 PHST- 2021/08/22 00:00 [revised] PHST- 2021/05/27 00:00 [received] PHST- 2021/09/02 00:00 [accepted] PHST- 2021/09/23 06:00 [pubmed] PHST- 2022/03/22 06:00 [medline] PHST- 2021/09/22 17:35 [entrez] AID - 10.1002/term.3244 [doi] PST - ppublish SO - J Tissue Eng Regen Med. 2021 Dec;15(12):1162-1171. doi: 10.1002/term.3244. Epub 2021 Sep 29.