A Novel Human Epithelial Enteroid Model of Necrotizing Enterocolitis

Area of Science:

• Gastroenterology
• Neonatology
• Regenerative Medicine

Background:

• Necrotizing enterocolitis (NEC) is a severe intestinal disease affecting newborns.
• Current animal models for NEC exhibit significant variability and ethical limitations for human studies.
• There is a critical need for a human-tissue-based model to study NEC pathophysiology and test therapeutics.

Purpose of the Study:

• To develop and validate a novel human enteroid model for studying necrotizing enterocolitis (NEC).
• To establish a more accurate platform for evaluating potential NEC treatments.
• To investigate NEC-like inflammatory responses in human intestinal organoids.

Main Methods:

• Human intestinal stem cells were isolated from patient bowel resections.
• Crypt cells were cultured to differentiate into various intestinal epithelial cell types, forming enteroids.
• Lipopolysaccharide (LPS) was administered to induce an NEC-like inflammatory response in the enteroids.

Main Results:

• Human enteroids successfully recapitulated key features of NEC, including increased intestinal permeability, impaired restitution, and cell death.
• LPS-induced inflammation in enteroids led to histologic, genetic, and protein expression changes mirroring human NEC.
• The enteroid model demonstrated apical-basolateral polarity, mimicking native intestinal epithelium.

Conclusions:

• The developed human enteroid model provides a viable and accurate platform for NEC research.
• This model facilitates the study of NEC pathophysiology and the testing of novel therapeutic interventions.
• Utilizing human enteroids can accelerate the development of effective treatments for NEC, improving infant outcomes.