Modeling human gastrointestinal inflammatory diseases using microphysiological culture systems.

Area of Science:

• Gastroenterology
• Immunology
• Tissue Engineering

Background:

• Gastrointestinal (GI) illnesses represent a major health burden in the US, causing millions of office visits and thousands of deaths annually.
• Inflammation is a key factor in many GI diseases, stemming from chemical injury, infection, autoimmune processes, or idiopathic causes.
• Current research models often lack the physiological relevance of human tissues or appropriate animal models for studying GI inflammation.

Purpose of the Study:

• To review current models of inflammatory and immunological aspects of specific GI diseases.
• To explore recent advances in culture methodologies for developing novel research systems.
• To highlight the potential of human ex vivo systems for understanding disease and testing therapeutics.

Main Methods:

• Review of existing literature on GI inflammation models.
• Exploration of advancements in tissue engineering and primary human cell culture.
• Discussion of the development of human ex vivo microphysiological systems.

Main Results:

• Current models for Barrett's esophagus, graft versus host disease, and inflammatory bowel disease have limitations.
• Advances in tissue engineering and cell culture enable the creation of sophisticated human ex vivo systems.
• These novel systems can recapitulate in vivo human growth and differentiation in inflammatory microenvironments.

Conclusions:

• Human ex vivo microphysiological systems offer a promising approach to study GI inflammation.
• These advanced models can enhance understanding of disease pathophysiology.
• Such systems will facilitate the development of new prevention strategies and therapeutics for GI diseases.