Journal article
Targeting NAD(P)H:Quinone Oxidoreductase (NQO1) in Pancreatic Cancer
Molecular carcinogenesis, Vol.43(4), pp.215-224
08/2005
DOI: 10.1002/mc.20107
PMCID: PMC7262682
PMID: 16003741
Abstract
NAD(P)H:Quinone oxidoreductase (NQO1) functions as an important part of cellular antioxidant defense by detoxifying quinones, thus preventing the formation of reactive oxygen species. The aims of our study were to determine if NQO1 is elevated in pancreatic cancer specimens and pancreatic cancer cell lines and if so, would compounds previously demonstrated to redox cycle with NQO1 be effective in killing pancreatic cancer cells. Immunohistochemistry of resected pancreatic specimens demonstrated an increased immunoreactivity for NQO1 in pancreatic cancer and pancreatic intraepithelial neoplasia (PanIN) specimens versus normal human pancreas. Immunocytochemistry and Western immunoblots demonstrated inceased immunoreactivity in pancreatic cancer cells when compared to a near normal immortalized human pancreatic ductal epithelial cell line and a colonic epithelial cell line. Streptonigrin, a compound known to cause redox cycling in the presence of NQO1, decreased clonogenic survival and decreased anchorage-independent growth in soft agar. Streptonigrin had little effect on cell lines with absent or reduced levels of NQO1. The effects of streptonigrin were reversed in pancreatic cancer cells pretreated with dicumarol, a known inhibitor of NQO1. NQO1 may be a therapeutic target in pancreatic cancer where survival is measured in months.
Details
- Title: Subtitle
- Targeting NAD(P)H:Quinone Oxidoreductase (NQO1) in Pancreatic Cancer
- Creators
- Anne M Lewis - The University of Iowa College of Medicine, Iowa City, IowaMatthew Ough - The University of Iowa College of Medicine, Iowa City, IowaJuan Du - Departments of Radiation Oncology, The University of Iowa College of Medicine, Iowa City, IowaMing-Sound Tsao - Department of Pathology and Division of Cellular Molecular Biology and the Ontario Cancer Institute/Princess Margaret Hospital Toronto, and University of Toronto, Ontario, CanadaLarry W Oberley - Departments of Radiation Oncology, The University of Iowa College of Medicine, Iowa City, IowaJoseph J Cullen - Departments of Surgery, The University of Iowa College of Medicine, Iowa City, Iowa
- Resource Type
- Journal article
- Publication Details
- Molecular carcinogenesis, Vol.43(4), pp.215-224
- DOI
- 10.1002/mc.20107
- PMID
- 16003741
- PMCID
- PMC7262682
- NLM abbreviation
- Mol Carcinog
- ISSN
- 0899-1987
- eISSN
- 1098-2744
- Language
- English
- Date published
- 08/2005
- Academic Unit
- Surgery; Radiation Oncology
- Record Identifier
- 9984051977202771
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