Foli Bio — Non-invasive Host Gut Transcriptomics

Non-invasive access
to the gut transcriptome

Foli-seq™ profiles host RNA from exfoliated gut epithelial and immune cells to reveal mucosal inflammation, barrier function, disease biology, and therapeutic response.

Starting from routine stool samples, Foli-seq™ captures stool-derived host RNA from naturally shed gut cells and converts it into longitudinal transcriptomic readouts.

Mucosal biology
Non-invasive readouts from naturally shed gut epithelial and immune cells
Longitudinal readouts
Molecular monitoring across timepoints without repeated endoscopy
Precision Medicine
Pharmacodynamic monitoring, responder biology, and biomarker discovery

The gut is where the body meets the outside world — but it is hard to monitor over time

Every day, the gastrointestinal tract responds to food, medicines, and environmental exposures. These responses shape local mucosal biology, but they are difficult to monitor over time. Biopsy can access tissue directly, but is invasive and episodic. Blood captures systemic signals, but can miss what is happening at the gut lining. Microbiome profiling characterizes microbial communities, but does not directly measure the human host response.

Stool is one of the few sample types that can repeatedly and non-invasively capture material shed directly from the gut. Foli-seq™ uses this biology to measure stool-derived host RNA from naturally shed epithelial and immune cells — not just microbial composition.

How Foli-seq™ works
Gap 01
Biopsy is invasive and episodic
Endoscopic biopsy provides mucosal biology, but cannot be repeated frequently. It offers a single timepoint and carries procedural burden for patients and study designs.
Gap 02
Blood misses local gut biology
Circulating biomarkers reflect systemic state, not the mucosal microenvironment. Local epithelial, barrier, and immune biology at the gut lining is not visible from blood.
Gap 03
Microbiome profiling is not host biology
Shotgun and 16S microbiome sequencing characterizes microbial communities. It does not directly measure the human host response, gene expression, or mucosal biology.

Foli-seq™ — from shed host cells to gut biology insights

Starting from routine stool samples, Foli-seq™ measures host RNA from naturally shed epithelial and immune cells — not just microbial composition.

These insights reveal inflammation, barrier damage, tissue repair, treatment response, and polyp- or CRC-associated changes in the gut lining.

Panels are available for human translational studies, mouse preclinical models, and companion animal programs.

View full platform          Explore Foli-seq™ panels
HOST BIOLOGY insight 01
Gut immune response
How is the gut responding to inflammation, food, microbes, infection, or treatment? Foli-seq™ profiles local host-response signals across inflammatory, allergic, infectious, and immune-mediated gut conditions.
HOST BIOLOGY insight 02
Gut lining and barrier state
Is the gut lining healthy, stressed, damaged, or repairing? Foli-seq™ profiles epithelial barrier function, mucus biology, tissue injury, repair programs, and local mucosal state.
HOST BIOLOGY insight 03
Disease and treatment signals
How is local gut biology changing with disease or therapy? Foli-seq™ profiles treatment-response biology, disease-associated host signals, polyp- or CRC-related changes, and biomarker discovery signals.

Host gut transcriptomics for translational studies and diagnostics

Pharma & Biotech
Translational biomarker studies

Non-invasive host gut transcriptomics for clinical and preclinical drug development, pharmacodynamic monitoring, patient stratification, and responder prediction.

Pharmacodynamic monitoring Responder and non-responder prediction Patient stratification Preclinical-to-clinical translation
MOLECULAR DIAGNOSTICS
Non-invasive molecular diagnostics

Host gut transcriptomic signatures for non-invasive disease monitoring, therapy response prediction, treatment guidance, and CRC / advanced adenoma screening.

Non-invasive disease activity monitoring Therapy response and treatment guidance CRC / advanced adenoma screening Pathogen colonization vs. active infection
Data & Precision Medicine
GUT RNA Atlas

A growing host gut transcriptomic data platform for precision medicine modeling, patient subtype discovery, and multi-omic integration.

Host gut transcriptomics data access Patient subtype discovery Biomarker and target discovery models Multi-omic integration support

From transcriptomic panels to translational programs

Foli Bio is advancing host RNA signatures across gastrointestinal disease areas to support disease monitoring, risk stratification, therapy response assessment, and non-invasive molecular diagnostics.

IBD / Immune-mediated GI
IBD Monitoring & Anti-TNF Response
Translational development

Host transcriptomic signatures for IBD disease activity monitoring, mucosal response assessment, and anti-TNF response prediction.

Collaborator: Weill Cornell Medicine
Polyp / Advanced Adenoma
Polyp & Advanced Adenoma Screening
Signature discovery and validation

Host RNA signatures associated with colorectal polyps, adenomas, and polyp-associated changes in the gut lining for non-invasive screening applications in high-risk and average-risk cohorts.

Undisclosed Programs
Additional Translational Programs
Discovery to signature validation

Additional host gut transcriptomic programs advancing with pharma, academic, and translational partners. Collaborator details not publicly disclosed.

A non-invasive readout of host gut biology.

We work with pharma, biotech, academic, and translational research partners. Contact us to learn more about the Foli-seq™ platform, ongoing studies, and partnership opportunities.