RT Journal Article SR Electronic T1 Effect of flupirtine on the growth and viability of U373 malignant glioma cells JF Cancer Biology and Medicine JO Cancer Biol Med FD China Anti-Cancer Association SP 142 OP 147 DO 10.7497/j.issn.2095-3941.2013.03.004 VO 10 IS 3 A1 Panchanathan, Elango A1 Ramanathan, Gnanasambandan A1 Subrahmanya Lakkakula, Bhaskar Venkata Kameswara YR 2013 UL http://www.cancerbiomed.org/content/10/3/142.abstract AB Objective: Flupirtine is a non-opioid analgesic without antipyretic or antiphlogistic properties but with favorable tolerability in humans. This analgesic also exhibits neuroprotective activities. Furthermore, flupirtine antagonizes glutamate- and NMDA-induced intracellular levels of Ca2+ and counteracts the effects of focal cerebral ischemia. Although flupirtine has been used to relieve pain caused by different diseases and clinical procedures, information on the safety and efficacy of flupirtine is limited. The present study was conducted to investigate the neuroprotective effects of flupirtine on U373 malignant glioma (MG) cell lines.Methods: Cell viability and cell cycle analysis was performed by MTT assay and flow cytometry, respectively.Results: Variations in the growth of U373 MG cells in 5 mM N-methyl-D-aspartate (NMDA), 1 mM flupirtine, and combined treatment indicated the antagonistic effects of NMDA and flupirtine on MG cell lines. The variation in the percentage of gated cell population in different cell cycle phases showed significant variations after 48 h of treatment.Conclusion: Flupirtine has neuroprotective effect of on U373 MG cells, which limits its use in the pain management of brain tumors. This property warrants further studies using animal models and large-scale clinical trials.