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Cheryl Nickerson

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Professor
Faculty, TEMPE Campus, Mailcode 5401
Professor
Faculty, TEMPE Campus, Mailcode 5401
Biography

Cheryl Nickerson studies the effects of biomechanical forces on living cells (microbial and human), how this response is related to normal cellular homeostasis or infectious disease, and its translation to clinical applications. She and her lab have developed several innovative model systems to study these processes including 3-D organotypic models of human tissues that mimic the structure and function of in vivo tissues and their application to study the host-pathogen interaction that leads to infectious disease.

Nickerson and her research team also investigate the response of microbial pathogens to biomechanical forces they encounter in the infected host, as well as in the microgravity environment of spaceflight. Her research has flown on numerous NASA Shuttle missions, the International Space Station, and continues on SpaceX flight experiments.

Education

 PhD, 1994, Louisiana State University

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Cheryl Nickerson
Cheryl Nickerson, a microbiologist at ASU's School of Life Sciences and Biodesign Institute, received the Exceptional Scientific Achievement Medal – NASA’s most prestigious commendation for outstanding contributions to science.
Videos
Publications
  • C. Drummond, Nickerson, C.A., and C.B. Coyne. A three-dimensional cell culture model to study enterovirus infection of polarized intestinal epithelial cells. mSphere (2015).
  • Crabbé, A. Liu, Y, Sarker, S., Bonenfant, N.R., Barrila, J., Lee, J.L., Weiss, D.J., and C.A. Nickerson. Recellularization of decellularized lung scaffolds is enhanced by dynamic suspension culture. PLoS ONE (2015).
  • Nickerson, C.A. Introducing npj Microgravity. npj Microgravity (2015).
  • Scott-Conner, CEH., Masys, D.R., Bloomfield, S.A., Cook, K.S., Jayaraman, S., Nickerson, CA., Pawelczyk, J.A., Satcher, R.L., Shumaker, R., Stuster, J., Woloschak, G.E., and L.R. Young. Review of NASA’s Evidence Reports on Human Health Risks: 2014 Letter Report. Institute of Medicine of the National Academies; The National Academies Press, Washington, D.C (2015).
  • Yang J, Barrila J, Roland KL, Kilbourne J, Ott CM, Forsyth R, and C.A. Nickerson. Characterization of the Invasive, Multidrug Resistant Nontyphoidal Salmonella strain D23580 in a Murine Model of Infection. PLoS Neglected Tropical Diseases (2015).
  • Crabbé, A., Nielsen-Press, S., Woolley, Barrila, J., Buchanan, K., McCracken, J., Ott, M., Nelman-Gonzalez, M., Pierson, D., Wilson, J.W., Stefanyshyn-Piper, H.M., and C.A. Nickerson. Spaceflight enhances aggregation and random budding in Candida albicans. PLoS ONE (2013).
  • M. Herbst-Kralovetz, A.L. Radtke, M.K. Lay, B.E. Hjelm, A.N. Bolick, S.S. Sarker, R.L. Atmar, D.H. Kingsley, C.J. Arntzen, M.K. Estes, and C.A. Nickerson. 2013. Correlation between lack of norovirus replication and histo-blood group antigen expression in three-dimensional INT-407 intestinal epithelial cell cultures. Emerging Infectious Diseases. Emerg Infect Dis. 2013 March; 19(3): 431–438. Correlation between lack of norovirus replication and histo-blood group antigen expression in three-dimensional INT-407 intestinal epithelial cell cultures. Emerging Infectious Diseases (2013).
  • De Weirdt, R., Crabbé, A., Roos, S., Vollenweider, S., Lacroix, C., van Pijkeren, J.P., Britton, R.A., Sarker, S., Van de Wiele, T., and C.A. Nickerson. . Glycerol supplementation enhances Lactobacillus reuteri’s protective effect against colonization by Salmonella enterica serovar Typhimurium in a three-dimensional model of colonic epithelium. PLoS ONE (2012).
  • M. Mellata, S. Sarker, C.A. Nickerson, J. Maddux, and R. Curtiss III. New insights into the bacterial fitness-associated mechanisms revealed by the characterization of large plasmids of an avian pathogenic E. coli. PLoS ONE (2012).
  • A. Crabbé, S. Sarker, R.V. Houdt, C.M. Ott, N. Leys, P. Cornelis and C.A. Nickerson. Alveolar epithelium protects macrophages from quorum sensing-induced cytotoxicity in a three-dimensional co-culture model. Cellular Microbiology (2011).
  • Castro S.L., Nelman-Gonzalez M., Nickerson C.A., Ott, C.M. Low fluid shear culture of Staphylococcus aureus induces attachment-independent biofilm formation and represses hfq expression. Environ Microbiol (2011).
  • Crabbe, A., Schurr, M., Schurr, J., Wilson, J.W., Tsaprailis, R. Bober, J. Devich, A. Ruggles, G, Stefanyshyn-Piper, H.M., and C.A. Nickerson. Hfq is an evolutionarily conserved spaceflight response regulator in Pseudomonas aeruginosa. Appl. Environ. Microbiol (2011).
  • Crabbé, A., Schurr, M., Schurr, J., Wilson, J.W., Tsaprailis, R. Bober, J. Devich, A. Ruggles, G, Stefanyshyn-Piper, H.M., and C.A. Nickerson. Transcriptional and proteomic responses of Pseudomonas aeruginosa PAO1 to spaceflight conditions involve Hfq regulation and reveal a role for oxygen. Appl. Environ. Microbiol (2011).
  • Jennings M.E., Quick L.N., Soni A., Davis R.R., Crosby K, Ott C.M., Nickerson CA., and J.W. Wilson. Characterization of the Salmonella enterica serovar Typhimurium ydcI gene which encodes a conserved DNA binding protein required for full acid stress resistance. J. Bacteriol (2011).
  • Nickerson, C.A., V.M. Garcia, T.L. Molina, S.L. Castro, C.M. Ott, J. Briggler, A.L. Pitt, J.K. Byram, and M.A. Nickerson. Evaluation of Microorganisms Cultured from Injured and Repressed Tissue Regeneration Sites in Endangered Giant Aquatic Ozark Hellbender Salamanders. PLoS ONE. 2011;6(12):e28906. Epub 2011 Dec 19 (2011).
  • Ott, C.M., Crabbe, A., Wilson, J.W., Barrila, J.B, and C.A. Nickerson. Effect of spaceflight on microbial gene expression and virulence, in Stress Challenges and Immunity in Space, Ed. Alexander Chouker. 2011. (2011).
  • A. Crabbé, S. Sarker, R.V. Houdt, C.M. Ott, N. Leys, P. Cornelis and C.A. Nickerson. Alveolar epithelium protects macrophages from quorum sensing-induced cytotoxicity in a three-dimensional co-culture model. Cellular Microbiology (2010).
  • Crabbe, A., Pyke, B., Monsierus, P., Van Houdt, R., Nickerson, C.A., Leys, N., and P. Cornelis. Response of Pseudomonas aeruginosa to low shear modeled microgravity involves AlgU regulation. Environ. Microbiol (2010).
  • Hjelm, B., A.N. Berta, C.A. Nickerson, C.J. Arntzen, and M.M. Herbst-Kralovetz. Development and characterization of a three-dimensional organotypic human vaginal epithelial cell model. Biology of Reproduction (2010).
  • L.E. O’Sullivan, C.A. Nickerson, and J.W. Wilson. A series of IncQ-based reporter plasmids for use in a range of Gram negative genera. Journal of Microbiology and Biotechnology May;20(5):871-4 (2010).
  • Radtke, A., Wilson, J.W., Sarker, S., and C.A. Nickerson. 2010. Radtke, A., Wilson, J.W., Sarker, S., and C.A. Nickerson . Analysis of interactions of Salmonella type three secretion mutants with 3-D intestinal epithelial cells. PLoS ONE (2010).
  • Skardal, A., S. Sarker, A. Crabbé, C.A. Nickerson, G.D. Prestwich. The Generation of 3-D Tissue Models based on Hyaluronan Hydrogel-Coated Microcarriers within a Rotating Wall Vessel Bioreactor. Biomaterials (2010).
  • Barrila, J., Radtke, A., Sarker, S., Crabbe, A., Herbst-Kralovetz, M., Ott, C.M., and C. A. Nickerson. Organotypic 3-D cell culture models: Applying the rotating wall vessel to study host-pathogen interactions. (2010).
  • Sarker, S., Ott, C.M., Barrila, J., and C.A. Nickerson D. iscovery of Spaceflight-regulated Virulence Mechanisms in Salmonella and other Microbial Pathogens: Novel Approaches to Commercial Vaccine Development. (2010).
  • Hjelm, B., A.N. Berta, C.A. Nickerson, C.J. Arntzen, and M.M. Herbst-Kralovetz. Development and characterization of a three-dimensional organotypic human vaginal epithelial cell model. Biology of Reproduction (2009).
  • La Belle, J.T., Shah, M., Reed, J., Nandakumar, V., Alford, T.L., Wilson, J.W., Nickerson, C.A., and Joshi, L. A novel sensor for rapid and ultra-low level detection of Salmonella enterica Serovar Typhimurium. Electroanalysis (2009).
  • J.W. Wilson, C.M. Ott, L. Quick, R. Davis, E. Richter, S. Sarker, A. Crabbe, M. Porter, K. Höner zu Bentrup, R. Ramamurthy, G. Tsaprailis, M. Shah, M. Nelman-Gonzalez, R. Bober, J. Devich, A. Ruggles, J. Barrila, Benjamin, J., C. Goulart, M. Rupert, L. Stodieck, P. Stafford, L. Catella, M.J. Schurr, K. Buchanan, D.L. Pierson, Gorie, D., and C.A. Nickerson. Media ion content inhibits spaceflight-induced increases in microbial virulence. PLoS ONE (2008).
  • T.A. Myers, C.A. Nickerson, D. Kaushal, C.M. Ott, K. Honer zu Bentrup, R. Ramamurthy, M. Nelman-Gonzales, D.L. Pierson, M.T. Philipp. Closing the Phenotypic Gap between Transformed Neuronal Cell Lines in Culture and Untransformed Neurons. Journal of Neuroscience Methods (2008).
  • W Cody, J Wilson, D Hendrixson, K McIver, K Hagman, C Ott, Cheryl Nickerson, M Schurr. Skim mild enhances the viability of frozen bacterial stocks. Journal of Microbiol Methods (2008).
  • E Nauman, C Ott, E Saunders, D Tucker, D Pierson, J Wilson, Cheryl Nickerson. A Novel Quantitative Biosystem to Model Physiological Fluid Shear Stress on Cells. Appl. Environ. Microbiol (2007).
  • Santander, J.M, Wanda, S.Y., Nickerson, C.A., and R. Curtiss III. Role of RpoS in fine-tuning the synthesis of Vi capsular polysaccharide in Salmonella enterica serotype Typhi. Infect Immun (2007).
  • Cheryl Nickerson, E Richter, C Ott. Studying host-pathogen interactions in 3-D: Organotypic models for infectious disease and drug development. Journal of Neuroimmune Pharmacology (2006).
  • J Santander, S Wanda, Cheryl Nickerson, R Curtiss. Role of RpoS in fine-tuning the synthesis of Vi capsular polysaccharide in Salmonella enterica serotype Typhi. (2006).
  • J Wilson, Cheryl Nickerson. A new experimental approach for studying bacterial genomic island evolution identifies island genes with bacterial host-specific expression patterns. BMC Evol Biol (2006).
  • K Honer zu Bentrup, S Alexander, N Pellis, K Buchanan, Cheryl Nickerson, R Ramamurthy, M Ott, K Emami, M Nelman-Gonzalez, J Wilson, E Richter, T Goodwin, D Pierson. 3-D organotypic models of human colonic epithelium to study the early stages of enteric salmonellosis. Microbes and Infection (2006).
  • K Johanson, K Muse, J Freeman, L Stodieck, T Hammond, P Allen, A Gonzalez-Villalobos, J Nesbitt, Cheryl Nickerson, K Honer zu Bentrup, J Wilson, R Ramamurthy, R D'Elia. Haploid deletion strains of Saccharomyces cerevisiae that determine survival during spaceflight. Acta Astronautica (2006).
  • T Straub, M Abbaszdegan, Cheryl Nickerson, K Höner zu Bentrup, B Mayer, R Bartholomew, C Valdez, C Bruckner-Lea, A Dohnalkova, P Orosz Coghlan, C Gerba. First Report of In Vitro Infection of a 3-Dimensional Organoid Model of Human Small Intestinal Epithelium with Human Noroviruses. Emerging Infectious Diseases (2006).
  • Nickerson, C.A. and Schurr, M.J. (Eds). Molecular Paradigms of Infectious Disease: A Bacterial Perspective. (2006).
  • Nickerson, Cheryl, Schurr, M J. Molecular Paradigms of Infectious Disease: A Bacterial Perspective. (2006).
  • C. Coleman, C. Baker, and C.A. Nickerson. The Role of Sigma Factors in Regulating Bacterial Stress Responses and Pathogenesis. Molecular Paradigms of Infectious Disease: A Bacterial Perspective (2006).
  • J.W. Wilson and C.A. Nickerson. In-vivo excision, cloning and broad-host-range transfer of large bacterial DNA segments using VEX-Capture. Methods in Molecular Biology (2006).
  • A Carterson, K Honer zu Bentrup, C Ott, M Clarke, C Vanderburg, K Buchanan, D Pierson, Cheryl Nickerson, M Schurr. A549 lung epithelial cells grown as 3-D aggregates: Alternative tissue culture model for P. aeruginosa pathogenesis. Infect Immun (2005).
  • H LaMarca, C Ott, K Höner zu Bentrup, C LeBlanc, D Pierson, Cheryl Nickerson, A Nelson, C Morris. A Novel Three-Dimensional Model of Human Placentation for the Study of Human Cytomegalovirus Pathogenesis. Placenta (2005).
  • J Wilson, Cheryl Nickerson. Cloning of a functional Salmonella SPI-I type III secretion system and development of a method to create mutations and epitope fusions in the cloned genes. Journal of Biotechnology (2005).
  • R D'Elia, P Allen, K Johanson, Cheryl Nickerson, T Hammond. Homozygous diploid deletion strains of Saccharomyces cerevisiae that determine lag phase and dehydration tolerance. Appl Microbiol Biotech (2005).
  • R D'Elia, P Allen, K Johanson, Cheryl Nickerson, T Hammond. Homozygous diploid deletion strains of Saccharomyces cerevisiae that determine lag phase and dehydration survival. Applied Microbiology and Biotechnology (2005).
  • Nickerson, Cheryl, Honer zu Bentrup, K, Ott, C. Three-dimensional cell culture models for drug discovery and infectious disease. (2005).
  • J Wilson, D Figurski, Cheryl Nickerson. VEX-capture: A new technique that allows in-vivo excision, cloning, and broad-host-range transfer of large bacterial genomic DNA segments. J. Microbiol. Methods (2004).
  • Nickerson, Cheryl, Ott, C. A New Dimension in Modeling Infectious Disease. (2004).
  • Nickerson, Cheryl, Ott, C, Wilson, J, Pierson, D. Microbial responses to microgravity and other low shear environments. (2004).
  • Nickerson, Cheryl, Ott, C, Wilson, J, Ramamurthy, R, LeBlanc, C, Honer zu Bentrup, K, Hammond, T, Pierson, D. Low Shear Modeled Microgravity:A Global Environmental Regulatory Signal Affecting Bacterial Gene Expression, Physiology, and Pathogenesis. (2003).
  • J Wilson, R Ramamurthy, C Ott, S Porwollik, M McClelland, D Pierson, Cheryl Nickerson. Low shear modeled microgravity alters the Salmonella typhimurium response in an RpoS-independent manner. Appl. Environ. Microbiol (2002).
  • J Wilson, R Ramamurthy, S Porwollik, M McClelland, T Hammond, P Allen, C Ott, D Pierson, Cheryl Nickerson. Microarray analysis identifies Salmonella genes belonging to the low-shear modeled microgravity regulon. Proc. Natl. Acad. Sci. USA (2002).
  • Wilson, J, Schurr, M, LeBlanc, C, Ramamurthy, R, Buchanan, K, Nickerson, Cheryl. Mechanisms of Bacterial Pathogenicity. (2002).
  • Cheryl Nickerson. Altered gene expression in response to Bordetella pertussis infection. Trends Microbiol (2001).
  • Cheryl Nickerson. Putting C. elegans to Gram positive use. Trends Microbiol (2001).
  • Cheryl Nickerson, T Hammond, D Pierson, T Goodwin, J Terlonge, C Ott, K Buchanan, W Uicker, K Emami, C Cedor, R Ramamurthy. Three-Dimensional Tissue Assemblies: Novel Models for the Study of Salmonella enterica Serovar Typhimurium Pathogenesis. Infect. Immun (2001).
  • P Brown, C Dozios, Cheryl Nickerson, J Terlonge, A Zuppardo, R Curtiss. A novel positive regulator of curli synthesis in an avian pathogenic Escherichia coli strain. Mol. Microbiol (2001).
  • Cheryl Nickerson. Macrophage-specific fimbriae. Trends Microbiol (2000).
  • Cheryl Nickerson. Stomach Islands. Trends Microbiol (2000).
  • Cheryl Nickerson. Understanding TB persistence. Trends Microbiol (2000).
  • Cheryl Nickerson, M Ott, S Mister, B Morrow, L Burns-Keliher, D Pierson. Microgravity as a novel environmental signal affecting Salmonella enterica serovar Typhimurium virulence. Infect. Immun (2000).
Research Activity
  • Nickerson,Cheryl. Synergistic Effects of Chronic Low Dose Radiation and Microgravity Analogue Culture on Human Surrogate 3-D Tissues. UNIVS SPACE RESEARCH ASSN(3/15/2016 - 8/31/2016).
  • Roland,Kenneth L*, Nickerson,Cheryl. Targeting Peyer's Patches To Improve Salmonella Typhi Vaccine Immunogenicity. HHS-NIH-NIAID(7/1/2015 - 6/30/2017).
  • Nickerson,Cheryl*, Nickerson,Cheryl*, Barrila,Jennifer A. High dimensional biology to understand the functional response of Salmonella to long-term multigenerational growth in the chronic stress of microgravi. NASA-AMES RESEARCH CTR(6/1/2015 - 5/31/2018).
  • Nickerson,Cheryl*, Barrila,Jennifer A. Combined Effects of Microgravity Analogue Culture and Incremental Oxygen Levels on Bacterial Pathogen Adaptive Responses. Johnson(2/1/2015 - 8/31/2016).
  • Nickerson,Cheryl*, Barrila,Jennifer A, Jurutka,Peter W, Sandrin,Todd Ryan. A New Dimension in Modeling Irritable Bowel Syndrome (IBS) to Elucidate Novel Diagnostic Biomarkers and Microbiome Signatures. (1/1/2015 - 8/15/2016).
  • Nickerson,Cheryl. Characterization of Microorganisms from the International Space Station Potable Water System: Understanding Microbial Responses that Could Impact Flig. UNIVS SPACE RESEARCH ASSN(7/1/2014 - 9/30/2014).
  • Nickerson,Cheryl. Enterovirus Infection of Polarized Intestinal Cells. UNIV OF PITTSBURGH(3/1/2014 - 2/28/2019).
  • Nickerson,Cheryl. Efficacy of Antimicrobials on Bacteria Cultured in a Spaceflight Analog. UNIVS SPACE RESEARCH ASSN(9/30/2013 - 3/30/2014).
  • Barrila,Jennifer A*, Nickerson,Cheryl. Evaluating the Spaceflight Infectious Disease Risk Potential of Pathogenic and Commensal microorganisms using Caenorhabditis elegans as a Human Surrog. Johnson(9/9/2013 - 9/8/2014).
  • Nickerson,Cheryl. Enterovirus Infection of Polarized Intestinal Cells. UNIV OF PITTSBURGH(9/6/2013 - 2/28/2014).
  • Nickerson,Cheryl*, Barrila,Jennifer A. RNA Deep Sequencing and Metabolomic Profiling of Microgravity-Induced Regulation of the Host-Pathogen Interaction: An Integrated Systems Approach. NASA-AMES RESEARCH CTR(7/1/2013 - 6/30/2017).
  • Nickerson,Cheryl. 3-D Organotypic Post-Menopausal Vaginal Epithelial Model for Correlation between Commensal Bacterial Colonization and Mucosal Health. KIMBERLY CLARK CORP(9/1/2012 - 5/31/2014).
  • Nickerson,Cheryl. Bioengineering new lungs from cadaveric scaffold. UNIV VERMONT(9/1/2011 - 8/30/2013).
  • Nickerson,Cheryl. YR1: Bioengineering new lungs from cadaveric scaffold. UNIV VERMONT(2/15/2011 - 8/30/2011).
  • Nickerson,Cheryl*, Barrila,Jennifer A. Investigation of host-pathogen interactions conserved cellular responses and countermeasure efficacy during spaceflight using the human surrogate. NASA-AMES RESEARCH CTR(7/13/2010 - 2/28/2017).
  • Nickerson,Cheryl. Whole-genome proteomic analysis of spaceflight and synchronous ground cultures. UNIVS SPACE RESEARCH ASSN(7/1/2010 - 9/30/2011).
  • Nickerson,Cheryl. RNA Binding Proteins as Evolutionarily Conserved Cellular Spaceflight Response Mechanisms. NASA-AMES RESEARCH CTR(5/1/2009 - 4/30/2013).
  • Nickerson,Cheryl*, Arntzen,Charles. Development of a robust assay for infective noroviruses for use in food safety diagnostics. USDA(9/1/2008 - 8/31/2011).
  • Nickerson,Cheryl. Characterization of Host-Pathogen Interactions under Modeled Microgravity: Development of Microbial Risk Countermeasures. NASA-JOHNSON SPACE CTR(8/1/2008 - 7/31/2009).
  • Nickerson,Cheryl. 3-D Organotypic Model of HIV-infectable Tissue for AIDS-associated dementia. HHS-NIH-NIMH(7/16/2008 - 4/30/2012).
  • Arntzen,Charles, Chen,Qiang, Mason,Hugh S, Nickerson,Cheryl. SBC: Commercialization of Norovirus Vaccine Technology in an Arizona Spin-off Company. SFAz(7/1/2008 - 12/31/2009).
  • Nickerson,Cheryl. Microbial Modeling and Characterization toward Spaceflight Risk Assessment:. UNIVS SPACE RESEARCH ASSN(4/15/2007 - 9/30/2010).
  • Nickerson,Cheryl. Pathogen detection using RNA analysis. PNNL(9/6/2006 - 6/30/2007).
  • Nickerson,Cheryl. Evaluation of host-pathogen interaction during exposure to microgravity analogues. Johnson(9/1/2006 - 8/31/2009).
  • Nickerson,Cheryl. Effect of Spaceflight on Microbial Gene Expression and Virulence. NASA-AMES RESEARCH CTR(6/1/2006 - 1/31/2010).
  • Nickerson,Cheryl. Effect of Spaceflight Associated Stress on mRNA Expression Profiles. UNIVS SPACE RESEARCH ASSN(5/1/2006 - 9/30/2006).
Spring 2017
Course NumberCourse Title
BIO 493Honors Thesis
MIC 494Special Topics
MIC 495Undergraduate Research
MIC 598Special Topics
Fall 2016
Course NumberCourse Title
BIO 189Life Sciences Career Paths
MIC 220Biology of Microorganisms
BIO 495Undergraduate Research
BIO 499Individualized Instruction
Spring 2016
Course NumberCourse Title
MIC 401Research Paper
BIO 493Honors Thesis
MIC 494Special Topics
MIC 495Undergraduate Research
MIC 598Special Topics
Fall 2015
Course NumberCourse Title
MIC 220Biology of Microorganisms
BIO 492Honors Directed Study
BIO 494Special Topics
BIO 495Undergraduate Research
BIO 499Individualized Instruction
Spring 2015
Course NumberCourse Title
MIC 495Undergraduate Research
Fall 2014
Course NumberCourse Title
MIC 494Special Topics
BIO 494Special Topics
BIO 495Undergraduate Research
BIO 499Individualized Instruction
MIC 598Special Topics
Spring 2014
Course NumberCourse Title
MIC 206Microbiology Laboratory
MIC 220Biology of Microorganisms
Fall 2013
Course NumberCourse Title
MIC 494Special Topics
MIC 598Special Topics
Spring 2013
Course NumberCourse Title
MIC 205Microbiology
MIC 206Microbiology Laboratory
BIO 495Undergraduate Research
BIO 496Undergraduate Thesis
MIC 499Individualized Instruction
Fall 2012
Course NumberCourse Title
BIO 189Life Sciences Career Paths
MIC 220Biology of Microorganisms
BIO 495Undergraduate Research
MIC 495Undergraduate Research
BIO 499Individualized Instruction
Service
  • Center for Infectious Diseases and Vaccinology, the Biodesign Institute, Arizona State University, Interim Co-Director (2015 - Present)
  • NASA Science Advisory and Strategic Planning Committee for Life Beyond Low Earth Orbit (LBLEO), Invited Committee Member (2015 - Present)
  • Instructor, 5 week Discussion Component of ASU BIO 189 to supplement ASU Freshman Success Seminars, Appointed Instructor (2012 - Present)
  • Instructor, 5 week Discussion Component of ASU BIO 189 to supplement ASU Freshman Success Seminars, Appointed Instructor (2012 - Present)
  • Office of the President (Michael Crow), OKED, ASU Foundation, Advisor, Consultant, Participant (2012 - Present)
  • Office of the President (Michael Crow), OKED, ASU Foundation, Advisor, Consultant, Participant (2012 - Present)
  • Advisor for Commercial Spaceflight Industry, Advisor (2011 - Present)
  • Advisor for Commercial Spaceflight Industry, Advisor (2011 - Present)
  • Microbiology Open, Editorial Board member (2011 - Present)
  • ASU and NASA liaison for Space Act Agreement, Primary Technical point of contact for ASU (2011 - Present)
  • ASU and NASA liaison for Space Act Agreement, Primary Technical point of contact for ASU (2011 - Present)
  • ASU and NASA liaison for Space Act Agreement, Primary Technical point of contact for ASU (2011 - Present)
  • ASU and NASA liaison for Space Act Agreement, Primary Technical point of contact for ASU (2011 - Present)
  • ASU and NASA liaison for Space Act Agreement, Primary Technical point of contact for ASU (2011 - Present)
  • SpaceX, Bigelow Aerospace, Advisor (2010 - Present)
  • Instructor, 5 week Discussion Component of ASU BIO 189 to supplement ASU Freshman Success Seminars, Appointed Instructor (2009 - Present)
  • ASU Faculty Oversight Committee for Microbiology Labs, Appointed Committee Member (2009 - Present)
  • International Space Station, National Lab Utilization, Kennedy Space Center, Invited panel member and presenter (2008 - Present)
  • NIH Round Table Discussion on 3-D Tissue Models for Inclusion in Transformative RO1s, Invited panel member - NIH Office of Portfolio Analysis and Strategic Initiatives. NIBIB/NIH, Bethesda, MD (2008 - Present)
  • National Academy of Sciences, Invited Presenter, Panel on Plant and Microbial Biology of the Decadal Survey on Biological and Physical Sciences in Space (2008 - Present)
  • Howard Hughes Medical Institute (HHMI) Interfaces Scholars Career Panel, Chevy Chase, MD, Invited Blue Ribbon Panel Member (2008 - Present)
  • Working with Rick Shangraw on assessment/planning to create an Arizona Aerospace Institute, Invited participant and planning committee member (2008 - Present)
  • Working with Rick Shangraw on assessment/planning to create an Arizona Aerospace Institute, Invited participant (2008 - Present)
  • Working with Rick Shangraw on assessment/planning to create an Arizona Aerospace Institute Thi, Invited participant (2008 - Present)
  • Experts Meeting on Organization of Decadal Study in Microgravity Research, Invited Panel Member - National Academy of Sciences, Washington, D.C. (2008 - Present)
  • Encyclopedia of Life Sciences, Editorial Advisory Board member (2008 - Present)
  • Microbial Risk Assessment Panel, NASA, Johnson Space Center, Blue ribbon panel member (2008 - Present)
  • Microbial Risk Assessment Panel, NASA, Johnson Space Center, Blue ribbon panel member (2008 - Present)
  • Microbial Risk Assessment Panel, NASA, Johnson Space Center, Appointed member (2008 - Present)
  • Biodesign Institute Activities Committee, Member (2007 - Present)
  • Biodesign Institute Activities Committee, Member (2007 - Present)
  • ASU Education Outreach - High School Student Internship, Mentor (2007 - Present)
  • ASU Education Outreach - High School Student Internship, Mentor (2007 - Present)
  • Systems and Synthetic Biology, Ad hoc Reviewer (2007 - Present)
  • ASU Education Outreach internship programs for high school students, Mentor (2007 - Present)
  • ASU Education Outreach internship programs for high school students, Mentor (2007 - Present)
  • MIC 495, Undergraduate research advisor and instructor (2007 - Present)
  • MIC 495, Undergraduate research advisor and instructor (2007 - Present)
  • MIC 495, Undergraduate research advisor and instructor (2007 - Present)
  • MIC 495, Undergraduate research advisor and instructor (2007 - Present)
  • MIC 495, Undergraduate research advisor and instructor (2007 - Present)
  • Microbiology graduate program, Faculty (2007 - Present)
  • Microbiology graduate program, Faculty (2007 - Present)
  • Microbiology graduate program, Faculty (2007 - Present)
  • Undergraduate research advisor, Mentor (2006 - Present)
  • Undergraduate research advisor, Mentor (2006 - Present)
  • Barrett Honors College, ASU, Honors Disciplinary Faculty (2006 - Present)
  • Barrett Honors College, ASU, Honors Disciplinary Faculty (2006 - Present)
  • MIC 401, Honors Disciplinary Faculty, Barrett Honors College, Microbiology Senior Project Research Advisor (2006 - Present)
  • MIC 401, Honors Disciplinary Faculty, Barrett Honors College, Microbiology Senior Project Research Advisor (2006 - Present)
  • MIC 401, Honors Disciplinary Faculty, Barrett Honors College, Microbiology Senior Project Research Advisor (2006 - Present)
  • MIC 401, Honors Disciplinary Faculty, Barrett Honors College, Microbiology Senior Project Research Advisor (2006 - Present)
  • MIC 401, Honors Disciplinary Faculty, Barrett Honors College, Microbiology Senior Project Research Advisor (2006 - Present)
  • Science, Contributor/Reviewer (2005 - Present)
  • Applied and Environmental Microbiology, Contributor/Reviewer (2004 - Present)
  • Journal of Bacteriology, Contributor/Reviewer (2004 - Present)
  • Journal of Gravitational Physiology, Contributor/Reviewer (2003 - Present)
  • Molecular Microbiology, Contributor/Reviewer (2003 - Present)
  • Molecular Microbiology, Contributor/Reviewer (2003 - Present)
  • Grant Review Panels, Reviewer (2000 - Present)
  • Grant Review Panels, Reviewer (2000 - Present)
  • Infection and Immunity, Ad hoc Reviewer (2000 - Present)
  • Trends in Microbiology, Contributor/Reviewer (1999 - Present)
  • NASA Life Sciences Program, Johnson Space Center, Houston, TX, Scientific Consultant (1998 - Present)
  • NASA Johnson Space Center, Life Sciences Program, Scientific Consultant for NASA Life Sciences Program, Johnson Space Center, Houston, TX (1998 - Present)
  • NASA Johnson Space Center, Life Sciences Program, Scientific Consultant for NASA Life Sciences Program, Johnson Space Center, Houston, TX (1998 - Present)
  • NASA Life Sciences Program, Johnson Space Center, Houston, TX, Consultant (1998 - Present)
  • NASA Life Sciences Program, Johnson Space Center, Houston, Texas, Scientific Consultant (1998 - Present)
  • NASA Life Sciences Program, Johnson Space Center, Houston, Texas, Scientific Consultant (1998 - Present)
  • NASA Life Sciences Program, Johnson Space Center, Houston, Texas, Scientific Consultant (1998 - Present)
  • NASA Life Sciences Program, Johnson Space Center, Houston, Texas, Scientific Consultant (1998 - Present)
  • NASA Life Sciences Program, Johnson Space Center, Houston, Texas, Scientific Consultant (1998 - Present)
  • ASU and NASA liaison for Space Act Agreement (SAA), Developed and wrote entire SAA/Point of Contact for BDI/ASU (2011 - 2025)
  • STEM NASA - Educational outreach videos and interviews for NASA STEM educational outreach activities, Speaker/Educator (2013 - 2023)
  • STEM NASA - Educational outreach videos, interviews, and public speaking, Speaker/Educator (2013 - 2023)
  • Editor-in-Chief of a new Nature Publishing Group journal npj Microgravity, launched in June, 2015, Editor-in-Chief and Founder of npj Microgravity. (2014 - 2019)
  • Editor-in-Chief and Founder of a new Nature journal by NPG focused on microgravity research, Editor-in-Chief and Founder of NPJ: Microgravity (2014 - 2019)
  • Founding Editor-in-Chief of a new Nature Publishing Group journal npj Microgravity, Editor-in-Chief and Founder of npj Microgravity. (2014 - 2019)
  • Cell and Molecular Biology (CMB) graduate programs representative, 2012 - 2014, CMB Graduate Programs Representative, nominated and approved (2012 - 2016)
  • Science Council, Division of Space Life Sciences at Universities Space Research Association (USRA), Elected member, Board of Directors (2010 - 2016)
  • ASU Faculty Oversight Committee for Microbiology labs, ASU Faculty Oversight Committee for Microbiology labs (2013 - 2016)
  • Reviewer of manuscripts for journals listed on the right under the Additional Information column, Reviewer (2000 - 2016)
  • ASU School of Life Sciences (SoLS) Assessment Committee, 2014 - 2015, Invited Committee Member (2014 - 2015)
  • ASU School of Life Sciences (SoLS) Assessment Committee, 2014., Nominated member (2014 - 2015)
  • Cell and Molecular Biology (CMB) graduate programs representative, 2012 - present, CMB Graduate Programs Representative, nominated and approved (2012 - 2015)
  • ASU School of Life Sciences (SoLS) Director Search Committee, Appointed member (2014 - 2015)
  • ASU SoLS Director Search Committee, Appointed member (2014 - 2015)
  • Science Council, Division of Space Life Sciences at Universities Space Research Association (USRA), Elected member, Board of Directors (2010 - 2015)
  • National Academy of Sciences/Institute of Medicine/National Research Council (NAS/IOM/NRC), Invited panel member, NAS-NRC, Immunology Subcommittee for NASA decadal review (2013 - 2015)
  • Division of Space Life Sciences at Universities Space Research Association (USRA), Science Council, Elected Member (2010 - 2015)
  • Cell and Molecular Biology (CMB) graduate programs representative, 2012 - 2014, CMB Graduate Programs Representative, nominated and approved (2012 - 2014)
  • Biodesign Institute Personnel Committee, Member (2009 - 2013)
  • Biodesign Institute Personnel Committee, Member (2009 - 2012)
  • Reviewer of manuscripts for journals listed on the right under the Additional Information column, Reviewer (2000 - 2012)
  • American Society for Gravitational and Space Biology, Governing Board, Elected member (2008 - 2011)
  • Biodesign Institute Personnel Committee, Member (2009 - 2011)
  • Applied Microbiology and Biotechnology, Reviewer (2008 - 2011)
  • ASU Education Outreach internship programs for high school students, Mentor (2007 - 2011)
  • Environmental Microbiology, Reviewer (2007 - 2011)
  • MIC 495, Undergraduate research advisor and instructor (2007 - 2011)
  • Microbiology graduate program, Faculty (2007 - 2011)
  • MIC 401, Honors Disciplinary Faculty, Barrett Honors College, Microbiology Senior Project Research Advisor (2006 - 2011)
  • Journal of Gravitational Physiology, Contributor/Reviewer (2003 - 2011)
  • NASA Life Sciences Program, Johnson Space Center, Houston, TX, Scientific Consultant (1998 - 2011)
  • Arizona Aerospace Institute Working Group, ASU Invited Committee Member, 2009 – present., Invited Member (2009 - 2010)
  • American Society for Gravitational and Space Biology, Governing Board, Elected member (2008 - 2010)
  • Infection and Immunity, Contributor/Reviewer (2000 - 2010)
  • Journal of Molecular Signaling, Reviewer (2009 - 2010)
  • Proceedings of the National Academy of Sciences, Contributor/Reviewer (2009 - 2010)
  • Systems and Synthetic Biology, Reviewer (2007 - 2010)
  • Science, Ad Hoc Reviewer (2005 - 2010)
  • Applied and Environmental Microbiology, Contributor/Reviewer (2004 - 2010)
  • Journal of Bacteriology, Contributor/Reviewer (2004 - 2010)
  • Institutional Biosafety Committee, Tulane University Medical Center, Member (2004 - 2006)
  • Graduate Faculty Committee, Tulane University Medical Center, Member (2002 - 2006)
  • Recruiting and Publications Subcommittee, Department of Molecular and Cellular Biology, Tulane University Medical Center, Member (2000 - 2006)
  • Graduate Admissions Committee, Department of Microbiology and Immunology, Tulane University Medical Center, Member (1998 - 2006)
  • Search Committee, Department of Microbiology and Immunology, Tulane University Medical Center, Member (1998 - 2006)
  • Under-privileged youth in Baton Rouge and New Orleans, LA, Motivational speaker (2005)
  • Clinical Diagnosis Curriculum Review Committee, Member (2003 - 2004)
  • Tulane University Medical Center, Secretary of the General Medical Faculty (2000 - 2001)
  • Louisiana Alliance for Minorities Program (LAMP), Mentor (1999 - 2000)