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
* Session Chair † Invited but not yet accepted | Program current as of October 10, 2025 4 AM | For the most up-to-date details, visit https://www.keystonesymposia.org
Sunday, March 7, 2027
4:00–8:00 PM Registration
6:00–8:00 PM Welcome Mixer
Monday, March 8, 2027
7:00–8:00 AM Breakfast
8:00–9:30 AM Welcome and Keynote Session (Joint)
  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
9:30–11:15 AM Micrbiota and T Cells (Joint)
  Andrew J.S. Macpherson †, University of Bern
Microbiota and Early Life Immune Development
 
  Ivaylo I. Ivanov, Columbia University
Segmented Filamentious Bacteria and Th17 Cells
 
  Fiona M. Powrie †, University of Oxford
Host-Microbiota Interactions in IBD
 
  Short Talk(s) Chosen from Abstracts
 
11:15–1:00 PM Poster Setup
11:15–5:00 PM On Own for Lunch
1:00–10:00 PM Poster Viewing
2:30–4:30 PM Symposia Spotlight 1: Late-breaking research presentations selected from abstract submissions
  Short Talks Chosen from Abstracts
 
4:30–5:00 PM Coffee Available
5:00–7:00 PM Microbial Metabolites and Immunity
  Matam Vijay-Kumar †, University of Toledo
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
 
  Short Talk(s) Chosen from Abstracts
 
7:00–8:00 PM Social Hour with Dinner
7:30–10:00 PM Posters
Tuesday, March 9, 2027
7:00–8:00 AM Breakfast
8:00–11:00 AM Microbial Tolerance (Joint)
  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
Tolerance at Skin Barriers
 
  Short Talk(s) Chosen from Abstracts
 
9:00–9:20 AM Coffee Break
11:00–1:00 PM Poster Setup
11:00–5:00 PM On Own for Lunch
1:00–10:00 PM Poster Viewing
3:00–4:30 PM Career Roundtable
4:30–5:00 PM Coffee Available
5:00–7:00 PM Microbiota Beyond Gut
  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
7:30–10:00 PM Posters
Wednesday, March 10, 2027
7:00–8:00 AM Breakfast
8:00–11:00 AM Frontiers in Microbiota-Immune Interactions
  Ken H Cadwell †, University of Pennsylvania
Viral Bacterial Interactions
 
  Theresa Alenghat †, Cincinnati Children’s Hospital
Microbiota Tuft Cells, and Type 2 Immunity
 
  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
11:00–5:00 PM On Own for Lunch
2:30–4:30 PM Symposia Spotlight 2: Late-breaking research presentations selected from abstract submissions
  Short Talks Chosen from Abstracts
 
4:30–5:00 PM Coffee Available
5:00–6:45 PM Better Bugs for Therapy
  Emma Slack †, ETH Zurich
Bugs are Better than Drugs
 
  Laurence Zitvogel †, Institut Gustave Roussy
Leveraging Microbiota for Better Chemotherapy
 
  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)
7:00–8:00 PM Social Hour with Dinner
8:00–11:00 PM Entertainment
8:00–11:00 PM Cash Bar
Thursday, March 11, 2027
12:00–11:59 PM Departure