Intestinal bone core chip and construction method and application thereof

By cascading small intestinal organoids and bone organoids in a perfusion chip, and employing a method of partitioned feeding and optimized microfluidic flow rate, the problem of stable co-culture of intestine and bone was solved, realizing material exchange and signal transmission between intestine and bone, and providing a new experimental tool and drug screening platform.

CN122128216APending Publication Date: 2026-06-02SHANGHAI UNIV +1

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
SHANGHAI UNIV
Filing Date
2026-03-18
Publication Date
2026-06-02

AI Technical Summary

Technical Problem

Existing technologies make it difficult to achieve stable tandem culture of intestinal and bone tissues within the same system, and it is also difficult to take into account the different requirements of the two types of tissues for culture medium composition and fluid conditions, thus failing to effectively regulate and characterize the quantitative ratio between intestinal and bone tissues.

Method used

By connecting small intestinal organoids and bone organoids in series using a perfusion chip, and setting induction culture media for intestinal and bone organoids separately using a zoned feeding method, and adding basal culture medium to the flow fluid as a circulation medium, the microfluidic flow rate parameters are optimized to achieve compatibility between differentiated induction conditions and circulation delivery.

Benefits of technology

It simulates the exchange of substances and signal transmission between the gut and bone, provides long-term monitoring of bone metabolism by intestinal secretions and cytokines, and constructs a multi-organ platform, providing new experimental tools for studying the regulatory mechanisms of bone metabolism and drug screening.

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Abstract

This invention belongs to the field of biomaterials technology, specifically relating to an intestinal-bone axis chip, its construction method, and its applications. By connecting small intestinal organoids and bone organoids in series via a perfusion chip, it simulates the material exchange and signal transmission between intestinal and bone tissue in vitro. Compared with existing technologies, the intestinal-bone axis chip of this invention can not only simulate the direct material exchange between the intestine and bone, but also achieve long-term monitoring of bone metabolism by intestinal secretions and cytokines, providing a new experimental tool for further research on the interaction between the intestine and bone.
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