School of Biological Sciences
Natural and Health Sciences
Ross Hall, Room 2516
501 20th Street, Greeley, CO 80639
- Postdoctoral training:Molecular Toxicology, Colorado State University, Fort Collins, CO (2000-2001)
- Postdoctoral training:Immunology, Colorado State University, Fort Collins, CO (1995-2000)
- Postdoctoral training:Cell Biology, Oregon State University, Corvallis, OR (1994-1995)
- Ph.D.:Toxicology, Oregon State University, Corvallis, OR (1994)
- B.A.:Biology, University of California, Santa Cruz, CA (1987)
- BIO 102 (Success in Biology I)
- BIO 101L (Biological Perspectives Lab)
- BIO 110 (Principles of Biology)
- BIO 210 (Cell Biology)
- BIO 211 (Applications of Cell Biology)
- BIO 350 (Human Physiology)
- BIO 381 (Principles of Immunology)
- BIO 448 (Pathobiology)
- BIO 450L (Cell Physiology Lab)
- BIO 476/576 (Pharmacology)
- BIO 547 (Immunology and Disease)
- BIO 556 (Current Topics in Biomedical Research)
- BIO 578 (Pathobiology)
- BIO 591 (Biology Roundtable)
- BIO 594 (Foundations of Biological Research)
Research/Areas of Interest
My research interests are to understand the effects of naturally occurring and man-made
chemicals on immunity, development, and homeostasis. Specific chemicals of interest
are halogenated aromatic hydrocarbons, pesticides, ethanol, and botanical dietary
supplements. These compounds are thought to impact health and development through
direct mechanisms, such as altered gene expression, or indirectly through alteration
of hormone levels and other pathways. The focus of my laboratory is to investigate
mechanisms of toxicity at the organismal, cellular, and molecular levels with the
ultimate aim to improve human and animal health.
Peer-reviewed research publications
A complete list of my published works can be found in MyBibliography
Recently presented papers and posters
- Costa AB, Hirsch AL, DeKrey GK (2019) Activation of aryl hydrocarbon receptor with structurally diverse ligands
represses class switch to immunoglobulin A. Poster #P1201, presented at Immunology
2019 (American Association of Immunologists). Published abstract: J Immunol, 202:
- King A, Schoenherr E, Metten M, DeKrey G (2019) Aryl hydrocarbon receptor activation does not impact the number of myeloid-derived
suppressor cells in the spleens of mice immunized with cholera toxin. Poster #P1310,
presented at Immunology 2019 (American Association of Immunologists). Published abstract:
J Immunol, 202: 67.19. (Abst.).
- DeKrey GK, King A, Gawronska E, Metten M (2018) Aryl hydrocarbon receptor activation differentially
impacts Cholera toxin-specific IgA levels in feces and serum of male and female mice.
Poster #MPF.992, presented at Immunology 2018 (American Association of Immunologists).
Published abstract: J Immunol, May 2018, 200 (1 Supplement) 117.41.
- Aspen King, Gawronska E, Metten M, DeKrey GK (2017) Aryl hydrocarbon receptor activation differentially alters Cholera toxin-specific
IgA levels in feces and serum. Presented at Experimental Biology 2017. Published
abstract: FASEB J, 31:667.2.
- Craig Coronado, Jonathan Lisano, Gabriel Strait, Reid Hayward, Gregory DeKrey, Rhonda Fisher, Peter Smoak, Daniel Shackelford and Laura Stewart (2017) Aerobic
fitness, independent of percent body fat, is linked to C-reactive protein in cancer
survivors. Presented at the Cell Symposia: Cancer, Inflammation and Immunity 2017.
- DeKrey GK, Gawronska E, Metten M (2016) Aryl Hydrocarbon Receptor Activation Fails to Alter
Cholera Toxin-Specific IgA Secretion Beyond the Second Week After Oral Immunization
in Mice. Presented at the 2016 American Association of Immunologists meeting.
- Metten M, DeKrey GK (2015) Aryl hydrocarbon receptor activation enhances total but not antigen-specific
IgA secretion in L. major-infected mice. Presented at the 2015 American Association of Immunologists meeting.
- DeKrey GK, Worley SL, Terry AI, Gardiner CS, BJ Vaughn (2014) Mouse Embryonic Stem Cell Differentiation into Cardiomyocytes is Inhibited
by Ethanol but Only After the Embryoid Body Stage. Presented at the 2014 Experimental
- Teagarden RE, Lenberg JL, Dunn AR, DeKrey GK (2013) 2,3,7,8-Tetrachlorodibenzo-p-dioxin (TCDD) reduces Leishmania major burdens in mice but not in macrophages in vitro. Presented at the Society of Toxicology
annual meeting, San Antonio, Texas, USA.
- Peichoto ME, Tavares FL, Jones SLW, DeKrey GK, Mackessy SP (2012) Comparative study of the in vitro cytotoxic activity of two rear-fanged
snake venoms agains 3T3 fibroblasts. Presented at the annual meeting of the Brazilian
Society of Pharmacology and Experimental Therapeutics, Brazil.
- Rogers CE, Bupp MG, K Unyoung, DeKrey G, Stranford S, Medh RD, Tomich G (2012) Successful integration of practical flow cytometric
experience into undergraduate education. Journal of Immunology, 186, 51.4. Presented
at the annual meeting of the American Association of Immunologists, San Francisco,
- Peichoto ME, Tavares FL, DeKrey GK, Mackessy SP (2010) Enzymatic and antileishmanial activities of five rear-fanged
snake venoms. Presented at the International Union of Toxicology meeting, Barcelona,
- Worley SL, Gardiner CS, DeKrey GK (2010) Ethanol causes disregulation of mouse embryonic stem cell development. Presented
at the Society of Toxicology annual meeting.
- Benitez-Kruidenier SL, Fuchs FM, DeKrey GK (2010) Endosulfan-a enhances LPS-stimulated cytokine production in RAW 264.7 cells.
Presented at the Society of Toxicology annual meeting.
- Bonney MG, Lively EL, Gardiner CS, DeKrey GK (2010) St. John's wort reduces tribromoethanol-induced sleep times in human-SXR transgenic
mice. Presented at the Society of Toxicology annual meeting.
Honors and Awards
Recent grant awards
- 2019 -- Faculty Publication and Research Board, Provost Research Dissemination and
Faculty Development award: "Altered migration of antibody secreting cells after activation
of the aryl hydrocarbon receptor".
2017 -- Faculty Publication and Research Board, Provost Research Dissemination and
Faculty Development award: "B Cell Homing to Mucosal Tissues Following Activation
of the Aryl Hydrocarbon Receptor".
- 2015 -- University of Northern Colorado, Research Advisory Council, Summer Support
Initiative award. "Enhancing resistance to cholera toxin via aryl hydrocarbon receptor
- 2015 -- College of Natural and Health Sciences, Grant-writing Incentive Program.
- 2014 -- Faculty Research and Publications Board -- Research, Dissemination and Faculty
Development grant. "Resistance to cholera toxin after activation of the aryl hydrocarbon
- 2012 -- College of Natural and Health Sciences' 2012-2013 Faculty Reassignment awards
for Research. "The aryl hydrocarbon receptor as a target for treating leishmanial
disease". University of Northern Colorado.
- 2012 -- University of Northern Colorado, 2012 Summer Support Initiative. "The aryl
hydrocarbon receptor as a target for treating leishmanial disease".
Recent professional honors
- 2012 -- Recognition of Outstanding Accommodation Assistance to Students with Disabilities,
Disabilities Support Services, University of Northern Colorado
- 2010 -- Minority Undergraduate Student Research Mentor, Travel Award, Society of Toxicology
- 2008 -- Faculty Research Mentor of the Year, Undergraduate Level, NHS, UNC
- 2006 -- Outstanding Professor Award, Delta Zeta Sorority, University of Northern Colorado