Japan Society for the Promotion of Science:Grants-in-Aid for Scientific Research
Date (from‐to) : 2024/04 -2025/03
Author : Matsunaga Tamihide
We investigated the duration of addition of low molecular weight compounds and the culture method when differentiation of human iPS cells into intestinal epithelial cells. As a result, gene expression and activity of drug metabolizing enzymes were significantly increased compared to conventional methods. In addition, RNA-seq analysis revealed that expression of genes involved in nutrient absorption was high and close to physiological small intestinal expression.
When TNF-α and IFN-γ were added to human iPS cell-derived two-dimensional intestinal organoids (hi2DIOs), a decrease in the intestinal barrier function and small intestine marker mRNA expression was observed. On the other hand, these decreases were significantly suppressed when co-cultured with lactic acid bacteria. These results suggest that hi2DIOs is useful as a small intestinal model for evaluating interactions with bacteria.