2025 Virtual Microbiome Symposium

Gut Microbial Metabolites and Their Impact on Host Systems

Join ISB on December 12, 2025, for a virtual symposium on the influence of gut microbial metabolites on human physiology.

A Universe of Metabolites

The intestinal lumen represents a vast and underexplored ecosystem that harbors members of the gut microbiota and a universe of metabolites whose concentrations are dynamically regulated by both host and microbial activity. New classes of metabolites are continuously being unearthed, accompanied by detailed characterization of their effects on host physiology. In this symposium, we will hear from leading experts who will present their groundbreaking work on how specific microbial metabolites influence neural, immune, and endocrine systems.

ISB is hosting this symposium on December 12, 2025. The intended audience is graduate students, postdocs, principal investigators, industry scientists, educators, clinicians, or any other variety of microbiome-curious person from across the globe.

This year our sponsor Applied Microbiology International is offering free memberships to anyone that registers and attends the event. Explore their website and make sure to check the box to opt in when you register.

Symposium Schedule

All presentation times are shown in Pacific Time (PT).

Time Talk / Session
9:00 Welcoming remarks by Sid Venkatesh
Session One: Neural Effects
9:10 – 9:15 Chair intro: Nate Ritz
9:15 – 9:45 Brittany Needham, PhD
Assistant Professor, Indiana University School of Medicine & Stark Neurosciences Research Institute
“Brain-Relevant Microbial Metabolites”
9:45 – 10:15 Giada De Palma, PhD
Assistant Professor, McMaster University
“The role of gut microbiota in pain neurotransmission”
10:15 – 10:25 Break
Session Two: Immune Effects
10:25 – 10:30 Chair intro: Alex Carr
10:30 – 11:00 June Round, PhD
Professor, H.A. and Edna Benning Presidential Endowed Chair, The University of Utah
“Microbiota-Immune interactions that promote health”
11:00 – 11:30 Melody Zeng, PhD
Associate Professor of Immunology, Weill Cornell Medicine
“Gut microbiota-immune system crosstalk in early life”
11:30 – 11:40 Break
Session Three: Endocrine Effects
11:40 – 11:45 Chair intro: Crystal Perez
11:45 – 12:15 Matthew Carter, PhD
Postdoctoral Fellow, Arc Institute & Stanford University
“Dietary modulation of a gut pathobiont links microbial amino acid metabolism to host health”
12:15 – 12:45 Matthew Redinbo, PhD
W.R. Kenan Jr. Distinguished Professor of Chemistry, Biochemistry, Microbiology & Genomics, UNC Chapel Hill
“Gut Microbial Enzymes Influence Host Endobiotic Homeostasis”
12:45 – 1:00 Break
1:00 – 1:45 Panel Discussion, chaired by Sid Venkatesh and Sean Gibbons
1:45 Closing remarks by Sean Gibbons

Meet the Speakers

Brittany Needham, PhD

Assistant Professor

Indiana University School of Medicine & Stark Neurosciences Research Institute

Giada De Palma, PhD

Assistant Professor

McMaster University

June L. Round, PhD

Professor, H.A. and Edna Benning Presidential Endowed Chair

The University of Utah

Melody Zeng, PhD

Associate Professor of Immunology

Weill Cornell Medicine

Matthew Carter, PhD

Postdoctoral Fellow

Arc Institute & Stanford University

Matthew Redinbo, PhD

W.R. Kenan Jr. Distinguished Professor of Chemistry, Biochemistry, Microbiology & Genomics

UNC Chapel Hill

Meet the Organizers

View Crystal Perez
(Session Chair)
View Crystal Perez
(Session Chair)

Crystal Perez
(Session Chair)

MD/PhD Candidate, Gibbons Lab

View Nate Ritz, PhD
(Session Chair)
View Nate Ritz, PhD
(Session Chair)

Nate Ritz, PhD
(Session Chair)

Postdoctoral Fellow, Venkatesh Lab

View Alex Carr, PhD
(Session Chair)
View Alex Carr, PhD
(Session Chair)

Alex Carr, PhD
(Session Chair)

Postdoctoral Fellow, Gibbons Lab

View Sean Gibbons, PhD
(Co-Director)
Sean Gibbons
View Sean Gibbons, PhD
(Co-Director)

Sean Gibbons, PhD
(Co-Director)

Associate Professor, ISB

View Sid Venkatesh, PhD
(Co-Director)
Sid Venkatesh
View Sid Venkatesh, PhD
(Co-Director)

Sid Venkatesh, PhD
(Co-Director)

Assistant Professor, ISB

Our 2025 Sponsors

AMI Logo

Liv by Epimorphy

Pendulum