Postdoctoral Research Scholar
Department of Pathology 1194 Medical Laboratories 500 Newton Road University of Iowa Iowa City, IA 52242-1109


Cedar Rapids, Iowa


BA, Biology and Biochemistry, Wartburg College, Waverly, Iowa
PhD, Pharmacology, Creighton University, Omaha, Nebraska

Research Description

Investigating how dysregulation of the Hippo Pathway and activation of TAZ (WWTR1) and YAP1 contributes to sarcoma development and disease progression.


  1. Gardner NM, Riley RT, Showker JL, Voss KA, Sachs AJ, Maddox JR, and Gelineau-van Waes JB. Elevated nuclear sphingoid base-1-phosphates and decreased histone deacetylase activity after fumonisin B1 treatment in mouse embryonic fibroblasts. Toxicology and Applied Pharmacology, 298: 56-65. PMID: 26905748. doi: 10.1016/j.taap.2016.02.018
  2. Gardner NM, Riley RT, Showker JL, Voss KA, Sachs AJ, Maddox JR, and Gelineau-van Waes JB. 2015. Elevated nuclear and cytoplasmic FTY720-phosphate in mouse embryonic fibroblasts suggests the potential for multiple mechanisms in FTY720-induced neural tube defects. Toxicological Sciences, 150: 161-168. PMID: 26719367. doi: 10.1093/toxsci/kfv321.
  3. Lizalek J, McKenna T, Huegel K, Marsh S, Carolan A, Kobliska A, Heying E, Gardner N Miller G, Kotecki A, Henningsen M, Lundt A, Farley J, and Ellerbroek S. 2015. Lysophosphatidic acid stimulates urokinase receptor (uPAR/CD87) in ovarian epithelial cancer cells. Anticancer Research, 35: 5263-5270. PMID: 26408685.
  4. Riley RT, Showker J, Lee C, Zipperer C, Mitchell T, Voss K, Zitomer N, Torres O, Matute J, Gregory S, Ashley-Koch A, Maddox J, Gardner N, and Gelineau-van Waes J. 2015. A Blood Spot Method for Detecting Fumonisin-Induced Changes in Putative Sphingolipid Biomarkers in LM/Bc Mice and Humans. Food Additives and Contaminants. Part A, Chemistry, analysis, control, exposure & risk assessment, 32: 934-949.
  5. Gelineau-van Waes J, Rainey MA, Maddox JR, Voss KA, Sachs AJ, Gardner NM, Wilberding JD, and Riley RT. 2012. Increased sphingoid base-1-phosphates and failure of neural tube closure after exposure to fumonisin or FTY720. Birth Defects Research Part A: Clinical and molecular teratology, 94: 790-803. PMID: 22991331.
  6. Riley RT, Voss KA, Showker JL, Torres O, Matute J, Maddox JR, Rainey MA, Gardner NM, Sachs AJ, Gregory SG, Ashley-Koch AE, Krupp D, and Gelineau-van Waes J. 2012. Development of biomarkers to assess fumonisin exposure and birth defects. In EM Binder (Ed.), World Nutrition Forum 2012 (pp.249-256). Leicestershire, England: Anytime Publishing.