Bioengineered human stomach micro-physiological system reveals unseen defense mechanisms

NewsGuard 100/100 Score

A groundbreaking development in biomedical engineering has led to the creation of a human stomach micro-physiological system (hsMPS), representing a significant leap forward in understanding and treating various gastrointestinal diseases, including stomach cancer. The research team, led by Professor Tae-Eun Park from the Department of Biomedical Engineering at UNIST and Professor Seong-Ho Kong from Seoul National University Hospital, has successfully developed a biomimetic chip that combines organoid and organ-on-a-chip technologies to simulate the complex defense mechanisms of the human gastric mucosa.

Organoids, which mimic human organs using stem cells, have shown great potential as in vitro models for studying specific functions. However, they lack the ability to replicate mechanical stimulation or cell-to-cell interactions found within the human body. This limitation prompted researchers to develop an innovative biochip capable of recreating real-life gastric mucosal protection systems.

The newly developed biochip incorporates fluid flow within its microfluidic channels to simulate mechanical stimuli and facilitate cell-to-cell interactions. Mesenchymal substrate cells exposed to fluid flow activate gastric stem cell proliferation while promoting cellular differentiation balance. This process ultimately mimics key features necessary for developing functional gastric mucosal barriers at a biologically relevant level.

One remarkable achievement demonstrated by this hsMPS is its ability to uncover previously unseen defense mechanisms against Helicobacter pylori-;a pathogen associated with various stomach diseases-;in ways that were not possible with existing models. Gastric mucosal peptide known as TFF1 was observed forming mosaic-like structures within groups infected with Helicobacter pylori-;forming a protective barrier essential for establishing an efficient defense system against external infectious factors. Suppression of gastric mucosal peptide expression resulted in more severe inflammatory reactions.

This study presents our model's potential for observing dynamic interactions between epithelial cells and immune cells in chips infected with Helicobacter pylori, contributing to a comprehensive understanding of gastric mucosal barrier stability."

Professor Tae-Eun Park, Department of Biomedical Engineering, UNIST

The research findings, supported by the Basic Research Laboratory (BRL) research grant from the National Research (NRF), funded by the Ministry of Science and ICT (MSIT), have been published online on July 31 in Advanced Science-;a prestigious journal published by Wiley.

These groundbreaking advancements in hsMPS open up new avenues for studying host-microbe interactions, developing therapeutic strategies for gastric infections, and gaining a deeper understanding of gastrointestinal diseases. This innovative biochip technology has the potential to reduce reliance on animal experimentation while providing valuable insights into complex physiological processes within the human stomach.

Journal reference:

Jeong, H.-J., et al. (2023). Organoid‐Based Human Stomach Micro‐Physiological System to Recapitulate the Dynamic Mucosal Defense Mechanism. Advanced Science.


The opinions expressed here are the views of the writer and do not necessarily reflect the views and opinions of News Medical.
Post a new comment

While we only use edited and approved content for Azthena answers, it may on occasions provide incorrect responses. Please confirm any data provided with the related suppliers or authors. We do not provide medical advice, if you search for medical information you must always consult a medical professional before acting on any information provided.

Your questions, but not your email details will be shared with OpenAI and retained for 30 days in accordance with their privacy principles.

Please do not ask questions that use sensitive or confidential information.

Read the full Terms & Conditions.

You might also like...
Changing the landscape of R&D to build clinical success from the ground up