RRC ID 38535
Author Liu Y, Liang Y, Zheng T, Yang G, Zhang X, Sun Z, Shi C, Zhao S.
Title Inhibition of heme oxygenase-1 enhances anti-cancer effects of arsenic trioxide on glioma cells.
Journal J Neurooncol
Abstract We have previously reported that arsenic trioxide (ATO) could inhibit glioma growth both in vitro and in vivo, and demonstrated its potent therapeutic effects on gliomas. In this study we showed that ATO induced cell damage and heme oxygenase-1 (HO-1) expression in glioma cells via ROS generation. HO-1 inducer clearly protected from ATO-induced cell death and ROS generation, and HO-1 inhibitor led to a significant increase in cell death and ROS generation induced by ATO. In addition, knockdown of nuclear factor (erythroid-derived 2)-like 2 (Nrf2) strongly inhibited HO-1 expression induced by ATO, and significantly enhanced ATO-induced oxidative damage. Our results demonstrated, for the first time, that HO-1 inhibition or Nrf2 knockdown significantly potentiated ATO's effects on glioma cells. Considering that HO-1 is highly expressed in glioma tissues, administration of ATO in combination with either HO-1 inhibitor or Nrf2 knockdown may act as a new approach to the treatment of glioma.
Volume 104(2)
Pages 449-58
Published 2011-9-1
DOI 10.1007/s11060-010-0513-1
PMID 21327864
MeSH Antineoplastic Agents / pharmacology* Arsenic Trioxide Arsenicals / pharmacology* Blotting, Western Cell Line, Tumor Enzyme Inhibitors / pharmacology* Gene Knockdown Techniques Glioma / enzymology* Heme Oxygenase-1 / antagonists & inhibitors* Humans NF-E2-Related Factor 2 / metabolism Oxides / pharmacology* Reactive Oxygen Species / metabolism Reverse Transcriptase Polymerase Chain Reaction
IF 3.267
Times Cited 20
WOS Category CLINICAL NEUROLOGY ONCOLOGY
Resource
Human and Animal Cells U251(RCB0461) A172(RCB2530)