Immunomodulatory Microbiota in Health and Disease (L6)
March 7-10, 2027  | Fairmont Banff Springs, Banff, AB, Canada
Andrew T. Gewirtz, Ivaylo I. Ivanov and Ruth E. Ley
Scholarship Deadline: Nov. 12, 2026 | Abstract Deadline: Feb. 16, 2027 | Early Registration Deadline: Jan. 7, 2027
* Session Chair † Invited but not yet accepted | Program current as of August 26, 2026 1 AM | For the most up-to-date details, visit https://www.keystonesymposia.org
Sunday, March 7, 2027
4:00–8:00 PM Registration Riverview Lounge
6:00–8:00 PM Welcome Mixer Riverview Lounge
Monday, March 8, 2027
7:00–8:00 AM Breakfast Alberta/New Brunswick
8:00–8:10 AM Welcome Remarks (Joint) Cascade Ballroom
8:10–9:30 AM Keynote Session (Joint) Cascade Ballroom
  Lora V. Hooper, University of Texas Southwestern Medical Center
How Microbiota Controls Innate Immunity
 
  Sing Sing Way, Cincinnati Children's Hospital
Pediatric Infectious Diseases
 
9:30–9:50 AM Coffee Break Riverview Lounge
9:30–11:30 AM Microbiota and T Cells (Joint) Cascade Ballroom
  Kathy D. McCoy, University of Calgary
Long-Term Reprogramming of Monocytes by Commensal Bacteria during Early Life Improves Host Defence against Infection
 
  Ivaylo I. Ivanov, Columbia University
Innate–Adaptive Circuits in Commensal-Specific Immunity
 
  Fiona M. Powrie, University of Oxford
Host-Microbiota Interactions in IBD
 
  Short Talk(s) Chosen from Abstracts
 
11:30–1:00 PM Poster Setup Alberta/New Brunswick
11:30–2:30 PM On Own for Lunch
1:00–10:00 PM Poster Viewing Alberta/New Brunswick
2:30–4:30 PM Symposia Spotlight 1 Cascade Ballroom
  Short Talks Chosen from Abstracts
 
4:30–5:00 PM Coffee Available Riverview Lounge
5:00–7:00 PM Microbial Metabolites and Immunity Cascade Ballroom
  Matam Vijay-Kumar, University of Toledo College of Medicine
Microbiota Metabolites and Dampening Immune Responses: Too Much of a Good Thing
 
  Jun R. Huh, Harvard Medical School
Microbial Regulation of Immunity via the Synthesis of Small Molecule Metabolites
 
  Kenya Honda, Keio University School of Medicine
Microbiota Influence on Adaptive Immunity
 
7:00–8:00 PM Social Hour with Dinner Alberta/New Brunswick
7:30–10:00 PM Poster Session 1 Alberta/New Brunswick
Tuesday, March 9, 2027
7:00–8:00 AM Breakfast Alberta/New Brunswick
8:00–11:00 AM Microbial Tolerance (Joint) Cascade Ballroom
  Ruth E. Ley, Max Planck Institute for Biology
Distinguishing Friend from Foe
 
  Gregory M. Barton, University of California, Berkeley
Tolerance in the Intestine
 
  Rodney D. Newberry, Washington University School of Medicine
Tolerance and IBD
 
  Tiffany C. Scharschmidt, University of California, San Francisco
Early Life Tolerance to Skin Commensal Bacteria
 
  Short Talk(s) Chosen from Abstracts
 
9:00–9:20 AM Coffee Break Riverview Lounge
11:00–1:00 PM Poster Setup Alberta/New Brunswick
11:00–3:00 PM On Own for Lunch
1:00–10:00 PM Poster Viewing Alberta/New Brunswick
3:00–4:30 PM Career Roundtable (Joint) Alhambra Ballroom
4:30–5:00 PM Coffee Available Riverview Lounge
5:00–7:00 PM Microbiota Beyond Gut Cascade Ballroom
  Andrew T. Gewirtz, Georgia State University / Frontiers
Gut Microbiota Control of Lung Immunity
 
  Douglas S Kwon, Harvard Medical School
Vaginal Microbiome and HIV
 
  Daniel H Kaplan, University of Pittsburgh
Microbiota and Epidermal Mast Cells
 
  Short Talk(s) Chosen from Abstracts
 
7:00–8:00 PM Social Hour with Dinner Alberta/New Brunswick
7:30–10:00 PM Poster Session 2 Alberta/New Brunswick
Wednesday, March 10, 2027
7:00–8:00 AM Breakfast Alberta/New Brunswick
8:00–11:00 AM Frontiers in Microbiota-Immune Interactions Cascade Ballroom
  Ken H Cadwell, University of Pennsylvania
Host Adaptations to Gut Microbes
 
  Theresa Alenghat, Cincinnati Children’s Hospital
Epithelial Regulation of the Host-Microbiota Relationship
 
  Noah W. Palm, Yale University
Transgingdom Interactomen
 
  June L. Round, University of Utah
Fungi, Macrophages and B-Cells
 
  Short Talk(s) Chosen from Abstracts
 
9:00–9:20 AM Coffee Break Riverview Lounge
11:00–2:30 PM On Own for Lunch
2:30–4:30 PM Symposia Spotlight 2 Cascade Ballroom
  Short Talks Chosen from Abstracts
 
4:30–5:00 PM Coffee Available Riverview Lounge
5:00–6:45 PM Better Bugs for Therapy Cascade Ballroom
  Marlies Meisel, University of Pittsburgh
Diet, Microbiota and Cancer
 
  Laurence Zitvogel, Institut Gustave Roussy
Metabolite Regulation of Gut Dysbiosis to Solve Cancer Immunoresistance
 
  Dan R. Littman, HHMI/New York University School of Medicine
Engineered Bacteria and Cancer treatment
 
  Short Talk(s) Chosen from Abstracts
 
6:45–7:00 PM Meeting Wrap-Up: Outcomes and Future Directions (Organizers) Cascade Ballroom
7:00–8:00 PM Social Hour with Dinner Alberta/New Brunswick
8:00–11:00 PM Entertainment
8:00–11:00 PM Cash Bar
Thursday, March 11, 2027
12:00–11:59 PM Departure