Journal article
O2⋅− and H2O2-Mediated Disruption of Fe Metabolism Causes the Differential Susceptibility of NSCLC and GBM Cancer Cells to Pharmacological Ascorbate
Cancer cell, Vol.31(4), pp.487-500.e8
04/10/2017
DOI: 10.1016/j.ccell.2017.02.018
PMCID: PMC6512344
PMID: 28366679
Abstract
Pharmacological ascorbate has been proposed as a potential anti-cancer agent when combined with radiation and chemotherapy. The anti-cancer effects of ascorbate are hypothesized to involve the autoxidation of ascorbate leading to increased steady-state levels of H2O2; however, the mechanism(s) for cancer cell-selective toxicity remain unknown. The current study shows that alterations in cancer cell mitochondrial oxidative metabolism resulting in increased levels of O2⋅− and H2O2 are capable of disrupting intracellular iron metabolism, thereby selectively sensitizing non-small-cell lung cancer (NSCLC) and glioblastoma (GBM) cells to ascorbate through pro-oxidant chemistry involving redox-active labile iron and H2O2. In addition, preclinical studies and clinical trials demonstrate the feasibility, selective toxicity, tolerability, and potential efficacy of pharmacological ascorbate in GBM and NSCLC therapy.
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•High-dose ascorbate sensitizes NSCLC and GBM cells to radio-chemotherapy•O2⋅− and H2O2 increase labile iron causing cancer cell-selective ascorbate toxicity•Therapeutic levels of ascorbate are achievable and well tolerated in GBM and NSCLC•Cancer cell oxidative metabolism can be targeted with ascorbate for cancer therapy
Schoenfeld et al. show that cancer cells are selectively sensitive to ascorbate due to their altered redox-active iron metabolism. They present preclinical and clinical data demonstrating the feasibility, tolerability, and potential efficacy of pharmacological ascorbate for treating glioblastoma and non-small cell lung cancer.
Details
- Title: Subtitle
- O2⋅− and H2O2-Mediated Disruption of Fe Metabolism Causes the Differential Susceptibility of NSCLC and GBM Cancer Cells to Pharmacological Ascorbate
- Creators
- Joshua D Schoenfeld - Free Radical and Radiation Biology Program, Department of Radiation Oncology, Holden Comprehensive Cancer Center, The University of Iowa, Iowa City, IA 52242, USAZita A Sibenaller - Free Radical and Radiation Biology Program, Department of Radiation Oncology, Holden Comprehensive Cancer Center, The University of Iowa, Iowa City, IA 52242, USAKranti A Mapuskar - Free Radical and Radiation Biology Program, Department of Radiation Oncology, Holden Comprehensive Cancer Center, The University of Iowa, Iowa City, IA 52242, USABrett A Wagner - Free Radical and Radiation Biology Program, Department of Radiation Oncology, Holden Comprehensive Cancer Center, The University of Iowa, Iowa City, IA 52242, USAKimberly L Cramer-Morales - Free Radical and Radiation Biology Program, Department of Radiation Oncology, Holden Comprehensive Cancer Center, The University of Iowa, Iowa City, IA 52242, USAMuhammad Furqan - Division of Hematology, Oncology, and Blood & Marrow Transplantation, Department of Internal Medicine, Holden Comprehensive Cancer Center, The University of Iowa, Iowa City, IA 52242, USASonia Sandhu - Division of Hematology, Oncology, and Blood & Marrow Transplantation, Department of Internal Medicine, Holden Comprehensive Cancer Center, The University of Iowa, Iowa City, IA 52242, USAThomas L Carlisle - Division of Hematology, Oncology, and Blood & Marrow Transplantation, Department of Internal Medicine, Holden Comprehensive Cancer Center, The University of Iowa, Iowa City, IA 52242, USAMark C Smith - Free Radical and Radiation Biology Program, Department of Radiation Oncology, Holden Comprehensive Cancer Center, The University of Iowa, Iowa City, IA 52242, USATaher Abu Hejleh - Division of Hematology, Oncology, and Blood & Marrow Transplantation, Department of Internal Medicine, Holden Comprehensive Cancer Center, The University of Iowa, Iowa City, IA 52242, USADaniel J Berg - Division of Hematology, Oncology, and Blood & Marrow Transplantation, Department of Internal Medicine, Holden Comprehensive Cancer Center, The University of Iowa, Iowa City, IA 52242, USAJun Zhang - Division of Hematology, Oncology, and Blood & Marrow Transplantation, Department of Internal Medicine, Holden Comprehensive Cancer Center, The University of Iowa, Iowa City, IA 52242, USAJohn Keech - Department of Surgery, Holden Comprehensive Cancer Center, The University of Iowa, Iowa City, IA 52242, USAKalpaj R Parekh - Department of Surgery, Holden Comprehensive Cancer Center, The University of Iowa, Iowa City, IA 52242, USASudershan Bhatia - Free Radical and Radiation Biology Program, Department of Radiation Oncology, Holden Comprehensive Cancer Center, The University of Iowa, Iowa City, IA 52242, USAVarun Monga - Division of Hematology, Oncology, and Blood & Marrow Transplantation, Department of Internal Medicine, Holden Comprehensive Cancer Center, The University of Iowa, Iowa City, IA 52242, USAKellie L Bodeker - Free Radical and Radiation Biology Program, Department of Radiation Oncology, Holden Comprehensive Cancer Center, The University of Iowa, Iowa City, IA 52242, USALogan Ahmann - Free Radical and Radiation Biology Program, Department of Radiation Oncology, Holden Comprehensive Cancer Center, The University of Iowa, Iowa City, IA 52242, USASandy Vollstedt - Free Radical and Radiation Biology Program, Department of Radiation Oncology, Holden Comprehensive Cancer Center, The University of Iowa, Iowa City, IA 52242, USAHeather Brown - Free Radical and Radiation Biology Program, Department of Radiation Oncology, Holden Comprehensive Cancer Center, The University of Iowa, Iowa City, IA 52242, USAErin P Shanahan Kauffman - Division of Hematology, Oncology, and Blood & Marrow Transplantation, Department of Internal Medicine, Holden Comprehensive Cancer Center, The University of Iowa, Iowa City, IA 52242, USAMary E Schall - Division of Hematology, Oncology, and Blood & Marrow Transplantation, Department of Internal Medicine, Holden Comprehensive Cancer Center, The University of Iowa, Iowa City, IA 52242, USARay J Hohl - Division of Hematology, Oncology, and Blood & Marrow Transplantation, Department of Internal Medicine, Holden Comprehensive Cancer Center, The University of Iowa, Iowa City, IA 52242, USAGerald H Clamon - Division of Hematology, Oncology, and Blood & Marrow Transplantation, Department of Internal Medicine, Holden Comprehensive Cancer Center, The University of Iowa, Iowa City, IA 52242, USAJeremy D Greenlee - Department of Neurosurgery, Holden Comprehensive Cancer Center, The University of Iowa, Iowa City, IA 52242, USAMatthew A Howard - Department of Neurosurgery, Holden Comprehensive Cancer Center, The University of Iowa, Iowa City, IA 52242, USAMichael K Schultz - Department of Radiology, Holden Comprehensive Cancer Center, The University of Iowa, Iowa City, IA 52242, USABrian J Smith - Departmet of Biostatistics, Holden Comprehensive Cancer Center, The University of Iowa, Iowa City, IA 52242, USADennis P Riley - Galera Therapeutics, Malvern, PA 19355, USAFrederick E Domann - Free Radical and Radiation Biology Program, Department of Radiation Oncology, Holden Comprehensive Cancer Center, The University of Iowa, Iowa City, IA 52242, USAJoseph J Cullen - Department of Surgery, Holden Comprehensive Cancer Center, The University of Iowa, Iowa City, IA 52242, USAGarry R Buettner - Free Radical and Radiation Biology Program, Department of Radiation Oncology, Holden Comprehensive Cancer Center, The University of Iowa, Iowa City, IA 52242, USAJohn M Buatti - Free Radical and Radiation Biology Program, Department of Radiation Oncology, Holden Comprehensive Cancer Center, The University of Iowa, Iowa City, IA 52242, USADouglas R Spitz - Free Radical and Radiation Biology Program, Department of Radiation Oncology, Holden Comprehensive Cancer Center, The University of Iowa, Iowa City, IA 52242, USABryan G Allen - Free Radical and Radiation Biology Program, Department of Radiation Oncology, Holden Comprehensive Cancer Center, The University of Iowa, Iowa City, IA 52242, USA
- Resource Type
- Journal article
- Publication Details
- Cancer cell, Vol.31(4), pp.487-500.e8
- DOI
- 10.1016/j.ccell.2017.02.018
- PMID
- 28366679
- PMCID
- PMC6512344
- NLM abbreviation
- Cancer Cell
- ISSN
- 1535-6108
- eISSN
- 1878-3686
- Publisher
- Elsevier Inc
- Grant note
- DOI: 10.13039/100001960, name: American Society for Radiation Oncology, award: JF2014-1; name: Carver Research Program of Excellence in Redox Biology; DOI: 10.13039/100000002, name: US NIH, award: R01-CA182804, R01-CA184051, R01-CA169046, U01-CA166800; DOI: 10.13039/100004316, name: IBM; name: CCSG, award: P30-CA086862; name: University of Iowa Medical Scientist Training Program, award: T32-GM007337, T32-CA078586; name: Galera Therapeutics
- Language
- English
- Date published
- 04/10/2017
- Academic Unit
- Neurology; Pathology; Biostatistics; Surgery; Otolaryngology; Radiology; Anatomy and Cell Biology; Stead Family Department of Pediatrics; Iowa Neuroscience Institute; Radiation Oncology; Neurosurgery; Holden Comprehensive Cancer Center; Internal Medicine
- Record Identifier
- 9983997454302771
Metrics
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