The active plant compounds demonstrated positive activity on mouse intestinal organoids as an inflammation model...

Diet has an important impact on intestinal homeostasis, and the establishment of appropriate experimental models to study the effect of food compounds is of interest. The organoid model can be used to check the positive protective role of active food compounds on intestinal tissue. In the current study, mouse intestinal organoids were used to model air-liquid interface (ALI), lipopolysaccharide (LPS)-induced inflammation, and macrophage co-culture-based inflammation modelling. The activity of hesperidin, capsaicin, allicin, and 18β-glycyrrhetinic acid (18β-GA) was determined in organoid culture. Morphology, crypt number, area, and intensity were analyzed. mRNA expression analysis and immunostaining analysis were performed for inflammation and proliferation markers. The ALI model exerted a suitable organoid culture system to mimic intestinal growth based on our results. Hesperidin, capsaicin, and allicin demonstrated positive effects on LPS-induced inflammation. All of the food compounds showed positive effects in macrophage co-culture for organoid structure and growth but not for macrophage proliferation and viability. All compounds reduced the inflammatory gene expression and increased stem cell marker and proliferation-related gene expression in the ALI model. In addition, capsaicin showed positive effects on organoid growth and maturation. This study generated an experimental model system to test food components and might be used in further research.