DDIS-05. IDENTIFICATION OF 2-FLUORO PALMITIC ACID AS A POTENTIAL THERAPEUTIC AGENT AGAINST GLIOBLASTOMA. (11th November 2019)

• Record Type: Journal Article
• Authors: Jiapaer, Shabierjiang; Dong, Yu; Kitabayashi, Tomohiro; Furuta, Taskuya; Sabit, Hemragul; Zhang, Jiakang; Zhang, guangtao; Tanaka, Shingo; Nakada, Mitsutoshi
• Is Part Of: Neuro-oncology. Volume 21(2019)Supplement 6
• Page Start: vi66
• Page End: vi66
• Publication Date: 2019-11-11
• Subjects: Brain Neoplasms -- Periodicals; Brain -- Tumors -- Periodicals; Brain -- Cancer -- Periodicals; Nervous system -- Cancer -- Periodicals; 616.99481
• DOI: 10.1093/neuonc/noz175.265
• Languages: English
• ISSNs: 1522-8517

Abstract

Abstract: BACKGROUND: Glioblastoma (GBM) represents the most aggressive and frequent type of primary malignant brain tumors with a dismal clinical outcome. Though adjuvant temozolomide (TMZ) chemotherapy followed by surgical resection can extend patient`s post-operative survival, a considerable number of GBM cases are refractory to TMZ. Novel therapeutic agents that can overcome chemoresistance against TMZ are urgent. Drug repositioning is a process of identifying new indications for existing drugs and provides potential possibilities to discover new drugs. In this study, we explored novel anti-glioma agents which enhances the effect of TMZ with the strategy of drug repositioning. METHODS: Drug library which contains 1300 diverse chemical compounds was screened using 2 kinds of glioma stem cell (GSC) lines to select novel therapeutic candidate. The effect of candidate drug on the proliferation of GSCs was estimated by sphere formation assay. To evaluate its efficacy against glioma cell biology, proliferation assay, matrigel invasion assay were performed. To clarify the mechanism of drug effects, we investigated target molecules by gelatin zymography and western blot. RESULTS: Acyl CoA synthetase inhibitor named 2-fluoropalmitic acid (2-FPA) was selected as a novel candidate. 2-FPA suppressed proliferation of glioma cell lines by single administration and/or combination with TMZ. The sphere formation of GSCs was suppressed by combination therapy. Combination therapy enhanced TMZ effect. 2-FPA also suppressed invasion of glioma cell lines in a dose dependent manner. 2-FPA suppressed MMP-2 activity and phosphorylation of STAT3. CONCLUSION: 2-FPA was identified as a novel potential therapeutic agent against GBM.