Neelendu Dey
Assistant Professor
Assistant Member, Fred Hutchinson Cancer Research Center
Division of Gastroenterology

Faculty Information


Dr. Dey obtained his Medical Degree from Yale University and completed his internal medicine residency and fellowship in gastroenterology at the University of California, San Francisco. In 2011 he was recruited to the Washington University School of Medicine to work in the laboratory of Dr. Jeffrey Gordon. After being successfully awarded a NIH sponsored KO8 award in 2016 he was appointed to the position of Assistant Professor at Washington University. Dr. Dey’s primary research focus is the intestinal microbiota and his scientific role will be to develop an independent research program that will advance the understanding of the effect of the microbiome on human health and disease.

Board Certifications:

  • Gastroenterology, 2011, American Board of Internal Medicine
  • Internal Medicine, 2008, American Board of Internal Medicine
Education & Training: 
Fellowship in Gastroenterology
University of California, San Francisco
University of California, San Francisco
University of California, San Francisco
Medical Education
Yale University School of Medicine
Teaching Appointment, Assistant Professor
Washington University
St. Louis
Research & Clinical Interests
Clinical Interests: 
  • Gastroenterology (Digestive)

Kent DR 4th, Dey N, Davidson F, Gregoire F, Petterson KA, Goddard WA 3rd, and Roberts JD. An NMR and quantum mechanical investigation of solvent effects on conformational equilibria of butanedinitrile. Journal of the American Chemical Society 124(31): 9318-9322, 2002. [original work]. PMID: 12149040.

Furman MH, Dey N, Tortorella D, and Ploegh HL. The human cytomegalovirus US10 gene product delays trafficking of major histocompatibility complex class I molecules. Journal of Virology 76(22): 11753-11756, 2002. [original work]. PMID: 12388737. PMCID: PMC136774.

Campos RA, Szczepanik M, Itakura A, Lisbonne M, Dey N, Leite-de-Moraes MC, and Askenase PW. Interleukin-4-dependent innate collaboration between iNKT cells and B-1 B cells controls adaptative contact sensitivity. Immunology 117: 536-547, 2006. [original work]. PMID: 16556268. PMCID: PMC1382258.

Dey N, Nazif TM, and Sharpe B. Stranded in San Francisco. Lancet 372(9642): 1008, 2008. [case report]. PMID: 18790323.

Dey N, Szczepanik M, Lau K, Majewska M, and Askenase PW. Stimulatory lipids accumulate in the mouse liver within 30 minutes of contact sensitization to facilitate activation of naïve iNKT cells in a CD1d-dependent yet hepatocyte-independent fashion. Scandinavian Journal of Immunology 74(1): 52- 61, 2011. [original work]. PMID: 21352253

Soergel D, Dey N, Knight R, and Brenner SE. Selection of primers for optimal taxonomic classification of environmental 16S rRNA gene sequences. ISME Journal 6:1440-1444, 2012. [original work]. PMID: 22237546. PMCID: PMC3379642.

Dey N, Soergel D, Repo S, and Brenner SE. Association of gut microbiota with post-operative clinical course in Crohn’s disease. BMC Gastroenterology 13:131, 2013. [original work]. PMID: 23964800. PMCID: PMC3848607.

Dey N, Wagner VE, Blanton LV, Cheng J, Fontana L, Haque R, Ahmed T, and Gordon JI. Regulators of Gut Motility Revealed by a Gnotobiotic Model of Diet-Microbiome Interactions Related to Travel. Cell 163(1):95-107, 2015. [original work]. PMID: 26406373. PMCID: PMC4583712.

Vivio E, Kanuri N, Monroe K, Gilbertsen J, Dey N, Chen CH, Gutierrez AM, and Ciorba MA. Vedolizumab efficacy in IBD and safety over its first year in clinical practice. Journal of Crohn’s and Colitis 10(4):402-409, 2016. [original work]. PMID: 26681763. PMCID: PMC4946762.

Wagner VE*, Dey N* (*co-first authors), Guruge J, Hsiao A, Ahern PP, Semenkovich NP, Blanton LV, Cheng J, Griffin N, Stappenbeck TS, Ilkayeva O, Newgard CB, Petri W, Haque R, Ahmed T, and Gordon JI. Effects of a gut pathobiont in a gnotobiotic mouse model of childhood undernutrition. Science Translational Medicine 8(366):366ra164, 2016. [original work]. PMID: 27881825. PMCID: PMC5152673.

Dey N, Ciorba MA. Probiotic Gut Bacteria Enhance Cancer Immunotherapy in a Mouse Model of Melanoma. Gastroenterology. 2016 Jul;151(1):206-7. 2016. PMID: 27238844.
Camacho-Soto A, Gross A, Searles Nielsen S, Dey N, and Racette BA. Inflammatory bowel disease and risk of Parkinson’s disease in Medicare beneficiaries. Parkinsonism Related Disorders 50:23-28, 2018. [original work]. PMID: 29459115. PMCID: PMC5943158.
Dey N, Kochman ML, Komanduri S, Melson JE, and Muthusamy VR. Report from the AGA Center for GI Innovation and Technology’s Consensus Conference: Envisioning Next-Generation Paradigms in Colorectal Cancer Screening and Surveillance. Gastroenterology. 2019. [meeting summary]. PMID: 31525354.

Li S, Simoni Y, Becht E, Yee Loh C, Li N, Lachance D, Koo SL, Por Lim T, Kwong Wei Tan E, Mathew R, Nguyen A, Golovato J, Berkson JD, Prlic M, Lee B, Minot SS, Nagarajan N, Dey N, Tan DSW, Tan IB, Newell EW. Human tumor-infiltrating MAIT cells display hallmarks of bacterial antigen recognition in colorectal cancer. Cell Reports Medicine. 2020 [original work]. PMID: 33205061. PMCID: PMC7659584.

Melson JE, Imperiale TF, Itzkowitz SH, Llor X, Kochman ML, Grady WM, Schoen RE, Burke C, Shaukat A, Rabeneck L, Ladabaum U, Bresalier R, Spiegel B, Yee J, Wang T, Lieberman D, Komanduri S, Muthusamy VR, and Dey N. AGA White Paper: Roadmap for the Future of Colorectal Cancer Screening in the United States. Clinical Gastroenterology and Hepatology. 2020. [white paper]. PMID: 32634626.