Redox Metabolism Shared Resource Facility
The mission of the Redox Metabolism Shared Resource Facility (RM SRF) is to provide expertise and services in free radicals, oxidative stress, mitochondrial function, and proteomics to basic and clinical investigators of the Markey Cancer Center (MCC) doing basic, pre-clinical, and clinical research.
Value-added importance of RM SRF to MCC
Faculty and staff
Hours of operation
The role of free radicals and altered metabolism is increasingly apparent in various aspects of cancer biology and cancer therapy. Analysis of the roles of free radicals in cancer biology requires highly skilled ability to:
- Measure the damage induced by free radicals in various tissues, cells, and fluids associated with different cancers.
- Measure oxygen and nitrogen free radical species via biochemical and biophysical methods.
- Measure molecules responsible for free radical production, oxidant scavenging, and free radical damage.
- Use proteomics to identify proteins in tissues, cells, and fluids that have differential levels or have been oxidatively modified and to determine associated functional changes.
- Measure mitochondrial function, since mitochondria are a major source of free radicals in cells.
- Educate MCC investigators on proper sample handling and preparation so that reliable, precise, and artifact-free assay results are obtained.
Value-added importance of RM SRF to MCC
As noted, the importance of free radical biology in multiple aspects of cancer biology and environmental carcinogenesis, including cancer etiology and cancer therapy, has become increasingly apparent. Consequently, the resources provided by the RM SRF are invaluable to investigators in each of the MCC Research Programs. For example, given the association of arsenic in Appalachia with the etiology of lung cancer and the known redox chemistry and biology that arsenic can undergo, the recent DOD grant on lung cancer (Dr. Susanne Arnold, PI) will employ the RM SRF in clinical research designed to increase the understanding of the role of arsenic in a cancer of high incidence in this population served by MCC.
Second, the NCI R01 grant to Dr. Jeff Moscow for a pilot study of MESNA as a possible preventative of doxorubicin-induced oxidative stress and TNF-α elevation in plasma is a direct result of oxidative stress studies provided by the RM.
Third, Clinical trials directed by Dr. John Hayslip designed to investigate nutritional intervention in hospital stay for colorectal cancer patients and led by Dr. Rachel Miller on chemotherapy prior to surgery in ovarian cancer on survival outcome, both of the Drug Discovery, Delivery, and Translational Therapy Program (DT), will provide many samples to the RM SRF for analysis of oxidative damage.
Also, Dr. Kyung-Bo Kim of the Cancer Cell Biology and Signaling Program (CS) uses RM SRF-resident proteomics analysis to investigate the immunoproteasome in cancer, and a new NCI R01 has been obtained. EPR analysis of DT-generated compounds as potential antioxidants can be accomplished easily by EPR.
Importantly, and unique to this region of the United States, the RM SRF is one of only a few cancer center-resident resources in the world with the knowledge and reagents necessary to provide the services needed by MCC members. Personnel in the RM SRF are highly knowledgeable about free radicals, oxidative stress, sample handling and preparation, and the advantages and limitations of each assay employed, including bioenergetics and proteomics. These skill sets provide a distinct advantage to MCC researchers in sample use, analysis, and interpretation of results.
The RM SRF also works in conjunction with other MCC Shared Resource Facilities, such as Biostatistics, Cancer Research Informatics and Flow Cytometry and Cell Sorting.
Faculty and staff
D. Allan Butterfield, PhD, Director: 859-323-0476,
Prof. Butterfield is the UK Alumni Association Endowed Professor of Biological Chemistry. His expertise is in detection of free radicals, measures of oxidative stress, and proteomics identification of oxidatively modified proteins. Prof. Butterfield serves as the director of the RM SRF.
Haining Zhu, PhD, Director, Proteomics Facility:
Prof. Zhu is primarily responsible for overseeing proteomics analyses of proteins of interest to MCC investigators.
Mihail (Mike) Mitov, PhD, Research Associate:
Dr. Mitov determines indices of oxidative damage, separates and analyzes proteins for proteomics analyses, and assists with Seahorse technology-mediated determination of mitochondrial functions.
Michael Alstott, MS, Senior Laboratory Technician:
Mr. Alstott primarily handles oxidative stress functions.
The FRBC SRF Technical Advisory Committee provides advanced expertise in oxidative/nitrosative stress, mitochondrial biology, EPR detection of free radicals, and mass spectrometry to guide MCC investigators in implementing available approaches to support their cancer studies.
- Allan Butterfield, PhD, UK Alumni Association Endowed Professor of Biological Chemistry; Director, RM SRF
- Daret St. Clair, PhD, James Graham Brown Professor of Toxicology; MCC Associate Director for Basic Research; Co-leader, RR Program
- Xianglin Shi, PhD, William A. Marquard Chair and Professor of Environmental Toxicology; member, RR Program
- Haining Zhu, PhD, Professor of Molecular and Cellular Biochemistry; Director of the UK Proteomics Core Facility; member, RR Program
The RM SRF Internal Advisory Committee monitors the effectiveness of the shared resource, including generation of grant proposals based on RM SRF assistance, recommends policy for fee structure for RM SRF services, and sets priorities for sample analysis if needed. The RM SRF Internal Advisory Committee, which meets semi-annually or on an ad hoc basis if needed, receives any concerns on quality or timeliness of service and resolves concerns.
- Susanne Arnold, MD, Professor of Medicine, MCC Associate Director; member, CP Program
- Allan Butterfield, PhD (ex officio), UK Alumni Association Endowed Professor of Biological Chemistry; Director RM SRF; member, RR Program
- Natasha Kyprianou, PhD, Professor of Surgery; member CS Program
- Guo-Min Li, PhD, Professor of Toxicology; member RR Program
- Rachel Miller, MD, Assistant Professor of Obstetrics and Gynecology; member DT Program
- Jeff Moscow, MD, Professor of Pediatric Oncology; Co-leader DT Program
- Mary Vore, PhD, Chair, Department of Toxicology; Co-leader, RR Program
- Zhou Zhang, MPH, PhD, Assistant Professor of Toxicology; member CP Program
- Haining Zhu, PhD (ex officio), Professor of Molecular and Cellular Biochemistry; Director of the UK Proteomics Core Facility; member, RR Program
If multiple PIs request simultaneous analyses, the Director, with input from the Executive Committee, decides priority of analyses based on the following criteria:
- Level 1: Samples from MCC members with NCI funding or cancer-related federally funded peer reviewed studies
- Level 2: Samples from MCC investigators preparing cancer-related, peer reviewed grant applications
- Level 3: Samples from MCC investigators with a cancer-related project funded by MCC pilot studies or non-peer reviewed source
- Level 4: Samples from MCC investigators without funding whose analysis would lead to preliminary data and the likelihood of a subsequent extramural proposal submission
Hours of operation
The hours of operation of the RM SRF are from Monday-Friday, 8:30 am-5:00 pm.