製品の特長

IntestiCult™ Organoid Differentiation Medium (ODM) で、ヒト腸オルガノイドをさらに分化

• 分化細胞と幹細胞の生理学的比率を示す腸オルガノイドの作製
• 単層培養およびALI培養への移行で、頂端表面に容易にアクセス
• 継代間および反復間での一貫した結果取得

データ紹介

分化したヒト腸オルガノイドの形態

Figure 1. Differentiated Human Intestinal Organoids Display a Budded Morphology

(A) Organoids grown in IntestiCult™ OGM are primarily cystic.
(B) When switched to IntestiCult™ ODM, organoids develop a thickened epithelium with a pronounced, budded morphology indicative of a more differentiated state. Organoids were imaged on day 5 of expansion or differentiation respectively.

分化した腸オルガノイドでの成熟細胞の増加

Figure 2. Intestinal Organoids Contain a Higher Proportion of Mature Cell Types Following Differentiation in IntestiCult™ ODM

(A, B) Organoids grown in IntestiCult™ OGM are enriched for Ki-67+ proliferative cells (A), while containing few differentiated cell types such as goblet cells (MUC2, A), enterocytes (KRT20, B), and enteroendocrine cells (CHGA, B).
(C, D) When switched to IntestiCult™ ODM, organoids contain a small number of Ki-67+ proliferative cells (C, arrows), with more physiological proportions of goblet cells (MUC2, C), enterocytes (KRT20, D), and chromogranin A- (CHGA-)positive enteroendocrine cells (D, arrow).

気液界面（ALI）培養での腸上皮分化

Figure 3. Differentiation of Intestinal Epithelium at the Air-Liquid Interface (ALI) Using IntestiCult™ ODM

(A – E) Growing organoid-derived monolayers as ALI cultures drives further differentiation of intestinal epithelial cultures as seen by changes in gene expression measured by RT-qPCR. Relative quantification (RQ) for each marker is shown relative to actB and TBP housekeeping genes and normalized with respect to undifferentiated organoids grown in IntestiCult OGM (Human). Progenitor markers (A) Lgr5 and (B) Axin2 are significantly reduced in both submerged monolayers and ALI cultures, while markers of enterocytes (KRT20, C), goblet cells (MUC2, D), and enteroendocrine cells (CHGA, E) are significantly increased. Further reduction in Axin2 is seen in ALI monolayers with an increase in expression of KRT20, MUC2, and CHGA.
(F, G) Comparing cross-sections of organoid monolayers grown in IntestiCult™ ODM as (F) submerged culture or (G) at the ALI shows further differentiation of the intestinal epithelium with an increased proportion of goblet cells and extracellular mucus (MUC2, green).

単層およびALI培養でのCaco-2細胞より生理的なTEER

Figure 4. Differentiated Organoid-Derived Monolayers and ALI Cultures Display More Physiological Trans-Epithelial Electrical Resistance (TEER) than Caco-2 Cells

Differentiated organoid-derived monolayers grown as a submerged monolayer (IntestiCult™ ODM Monolayer), or at the ALI (IntestiCult™ ODM ALI), show higher TEER values as compared to Caco-2 cultures.Organoid-derived monolayers grown at the ALI show a loosening of tight junctions due to further differentiation of the brush border, and thus lower TEER values are observed. * p < 0.0001.

分化した腸オルガノイドによるCFTR応答モデル

Figure 5. Differentiated Intestinal Organoids Provide a Suitable Model for Studying CFTR Response In Vitro

(A) Organoids differentiated further in IntestiCult™ ODM show a comparable degree of swelling when treated with forskolin as compared to organoids grown in IntestiCult™ OGM, demonstrating suitability for use in forskolin-induced swelling assays.
(B – E) Ussing chamber analysis of submerged (B) organoid-derived monolayers and (C) Caco-2 cultures demonstrate increased sensitivity of organoid-derived monolayers to CFTR activation and inhibition by IBMX/Forskolin and CFTR Inhibitor-172 respectively. (D, E) Analysis of CFTR modulation by IBMX/Forskolin and CFTR Inhibitor-172 show significantly greater (D) activation and (E) inhibition of CFTR activity in organoid-derived monolayers as compared to Caco-2 cultures (p < 0.001 for both).