Article1 min read·Published May 2026

Large-scale and innervated functional human gut tissues for transplantation via transient spheroid confinement

Part of Intestinal Organoid Science & Bioengineering 49 items

pubmed.ncbi.nlm.nih.gov

Michael Helmrath

Key limitations of current human gastrointestinal organoids include incomplete physiological maturation and the need for complex, time-consuming assembloid approaches to integrate a functional nervous system for transplantation. Here we present a confined culture system (CCS) method that generates large-scale, elongated and functional human small intestinal, colonic and gastric tissues with a de novo enteric nervous system (ENS). We use a 3D-printed scaffolding tray to restrict spheroid fusion and growth, promoting the spontaneous co-development of a functional ENS. Transcriptomic and electrophysiological data demonstrate selective neuromuscular function and the presence of excitatory and inhibitory neurons within the tissues. When compared to traditional methods, the CCS expedites tissue maturation for transplantation, yielding organoids that are up to ten times larger, reaching widths of 8 cm after 10 weeks, and exhibit enhanced engraftment rate. CCS organoids integrate and adapt to murine luminal environment while maintaining barrier integrity and functional capacity. The CCS methodology simplifies current protocols while accelerating the production of complex, functional and clinically relevant gut tissues.

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Article · May 2026 · 1 min read

In brief

Researchers developed a confined culture system that produces large-scale, innervated human gut tissues with functional enteric nervous systems for transplantation. The method uses 3D-printed scaffolds to generate organoids up to 8 cm wide that demonstrate neuromuscular function and successfully engraft in animal models.

Written by the GCMD Library team from the article.

Michael Helmrath

Statements in this article

Current human gastrointestinal organoids have incomplete physiological maturation and require complex, time-consuming assembloid approaches to integrate a functional nervous system for transplantation.
Established
The confined culture system method generates large-scale, elongated and functional human small intestinal, colonic and gastric tissues with a de novo enteric nervous system.
Research
A 3D-printed scaffolding tray restricts spheroid fusion and growth, promoting the spontaneous co-development of a functional enteric nervous system.
Research
Transcriptomic and electrophysiological data demonstrate selective neuromuscular function and the presence of excitatory and inhibitory neurons within the tissues.
Research
The confined culture system expedites tissue maturation for transplantation compared to traditional methods.
Research
Confined culture system organoids are up to ten times larger than traditional organoids, reaching widths of 8 cm after 10 weeks.
Research
Confined culture system organoids exhibit enhanced engraftment rate compared to traditional methods.
Research
Confined culture system organoids integrate and adapt to murine luminal environment while maintaining barrier integrity and functional capacity.
Research
The confined culture system methodology simplifies current protocols while accelerating the production of complex, functional and clinically relevant gut tissues.
Research