PMID- 26981778 OWN - NLM STAT- MEDLINE DCOM- 20180130 LR - 20181202 IS - 1949-2553 (Electronic) IS - 1949-2553 (Linking) VI - 7 IP - 17 DP - 2016 Apr 26 TI - ABCG1 maintains high-grade glioma survival in vitro and in vivo. PG - 23416-24 LID - 10.18632/oncotarget.8030 [doi] AB - The overall survival for adults with malignant glioma (glioblastoma) remains poor despite advances in radiation and chemotherapy. One of the mechanisms by which cancer cells develop relative resistance to treatment is through de-regulation of endoplasmic reticulum (ER) homeostasis. We have recently shown that ABCG1, an ATP-binding cassette transporter, maintains ER homeostasis and suppresses ER stress-induced apoptosis in low-grade glioma. Herein, we demonstrate that ABCG1 expression is increased in human adult glioblastoma, where it correlates with poor survival in individuals with the mesenchymal subtype. Leveraging a mouse model of mesenchymal glioblastoma (NPcis), shRNA-mediated Abcg1 knockdown (KD) increased CHOP ER stress protein expression and resulted in greater NPcis glioma cell death in vitro. Moreover, Abcg1 KD reduced NPcis glioma growth and increased mouse survival in vivo. Collectively, these results demonstrate that ABCG1 is critical for malignant glioma cell survival, and might serve as a future therapeutic target for these deadly brain cancers. FAU - Chen, Yi-Hsien AU - Chen YH AD - Department of Neurology, Washington University School of Medicine, St. Louis, MO, USA. FAU - Cimino, Patrick J AU - Cimino PJ AD - Department of Pathology, Washington University School of Medicine, St. Louis, MO, USA. FAU - Luo, Jingqin AU - Luo J AD - Department of Surgery, Washington University School of Medicine, St. Louis, MO, USA. FAU - Dahiya, Sonika AU - Dahiya S AD - Department of Pathology, Washington University School of Medicine, St. Louis, MO, USA. FAU - Gutmann, David H AU - Gutmann DH AD - Department of Neurology, Washington University School of Medicine, St. Louis, MO, USA. LA - eng GR - P30 CA091842/CA/NCI NIH HHS/United States GR - P50 CA094056/CA/NCI NIH HHS/United States GR - R01 NS065547/NS/NINDS NIH HHS/United States PT - Journal Article PL - United States TA - Oncotarget JT - Oncotarget JID - 101532965 RN - 0 (ABCG1 protein, human) RN - 0 (ATP Binding Cassette Transporter, Subfamily G, Member 1) RN - 0 (Biomarkers, Tumor) SB - IM MH - ATP Binding Cassette Transporter, Subfamily G, Member 1/*metabolism MH - Adult MH - Animals MH - Apoptosis MH - Biomarkers, Tumor/*metabolism MH - Brain Neoplasms/metabolism/*pathology MH - Case-Control Studies MH - Cell Proliferation MH - Follow-Up Studies MH - Glioma/metabolism/*pathology MH - Humans MH - Male MH - Mice MH - Mice, Inbred C57BL MH - Neoplasm Grading MH - Survival Rate MH - Tumor Cells, Cultured MH - Xenograft Model Antitumor Assays PMC - PMC5029636 OTO - NOTNLM OT - ER stress OT - apoptosis OT - brain tumor OT - glioblastoma OT - glioma stem cell COIS- None to disclose. EDAT- 2016/03/17 06:00 MHDA- 2018/01/31 06:00 PMCR- 2016/04/26 CRDT- 2016/03/17 06:00 PHST- 2015/09/29 00:00 [received] PHST- 2016/02/25 00:00 [accepted] PHST- 2016/03/17 06:00 [entrez] PHST- 2016/03/17 06:00 [pubmed] PHST- 2018/01/31 06:00 [medline] PHST- 2016/04/26 00:00 [pmc-release] AID - 8030 [pii] AID - 10.18632/oncotarget.8030 [doi] PST - ppublish SO - Oncotarget. 2016 Apr 26;7(17):23416-24. doi: 10.18632/oncotarget.8030.