HepatiCult™ Organoid Growth Medium (Human)
Culture medium for long-term expansion and maintainence of human liver organoids
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Available either individually or as part of HepatiCult™ Organoid Kit (Human), HepatiCult™ OGM can be used to culture and expand liver organoids for future experimentation or bio-banking. Organoids initiated in HepatiCult™ Organoid Initiation Medium (Human) and expanded in HepatiCult™ OGM express self-renewal (LGR5, AXIN2), ductal (KRT19, SOX9, KRT7), and hepatic progenitor (HNF4A) markers. These organoids can also be differentiated using HepatiCult™ Organoid Differentiation Medium (Human) to mature organoids that demonstrate hepatic functionality, including CYP3A4 activity, and which can be adapted to a range of culture protocols, including 2D monolayer, suspension cultures, and high-throughput assays.
Use HepatiCult™ OGM to culture organoids in a range of formats, including in Corning® Matrigel® domes for routine culture, in dilute Matrigel® suspensions in spinner flasks for scale-up, in 96- and 384-well plates for high-throughput screening applications, and as organoid-derived two-dimensional monolayers on Transwell® inserts for disease-modeling applications. The organoids can also be cryopreserved for later use, remaining highly viable and retaining their capacity for further differentiation when thawed and cultured in HepatiCult™ OGM.
For more information on protocols for organoid culture with HepatiCult™, please explore the Technical Manual and Educational Materials.
Figure 1. HepatiCult™ Organoid Kit (Human) Enables Liver Organoid Initiation, Expansion, and Differentiation
Human liver organoids can be grown from normal human liver tissue-derived hepatic ducts using the HepatiCult™ Organoid Kit (Human). (A) Cultures are established in HepatiCult™ Organoid Initiation Medium (OIM; Human) or HepatiCult™ Organoid Growth Medium (OGM; Human) (see Table 1 below) and subsequently passaged in HepatiCult™ OGM for expansion. (B) After passaging 2-3 times in HepatiCult™ OGM, cultures can be switched to HepatiCult™ Organoid Differentiation Medium (ODM; Human) to differentiate organoids towards more mature hepatic cell types. Refer to the Product Manual (Document #10000008301) for full culturing protocols.
Table 1. Product Recommendations for Liver Organoid Initiation, Expansion, and Differentiation
The recommended configuration of the HepatiCult™ Organoid Kit (Human) may differ based on starting material and experimental goals. When establishing liver organoid cultures from human liver tissue, HepatiCult™ Organoid Initiation Medium (OIM; Human) is recommended for efficient organoid initiation (see Figure 2 below). The expansion of already established organoids (fresh in culture or cryopreserved) is supported by HepatiCult™ Organoid Growth Medium (OGM; Human). These organoids should be maintained for 2-3 passages before further differentiation using HepatiCult™ Organoid Differentiation Medium (ODM). Refer to the Product Manual (Document #10000008301) for full culturing protocols.
Figure 2. HepatiCult™ Organoid Kit (Human) Provides Efficient Organoid Initiation From Human Liver Tissue
(A) Organoid cultures were initiated in HepatiCult™ OIM, and then (B) passaged into HepatiCult™ OGM. For serum-free culture conditions, organoid cultures were both, (C) initiated in and (D) passaged in HepatiCult™ OGM. Culture images shown are from (A, C) day 15 following initiation, and (B, D) on day 8 of the first passage. (E) Quantification of organoid initiation efficiency shows a significantly higher organoid yield in HepatiCult™ OIM per gram of human liver tissue (mean ± SD; n=14).
Figure 3. HepatiCult™ Organoid Initiation Medium (Human) Supports Robust Organoid Establishment Across Multiple Liver Tissue Donor Samples
Organoids initiated from 4 donor tissue samples (A-D) exhibit morphological heterogeneity 15 days after initiation. All initiated cultures were subsequently expanded in HepatiCult™ OGM using a 1:1 passaging ratio (E-H), yielding healthy organoids at the end of the first passage.
Figure 4. Expansion of Organoid Cultures in HepatiCult™ Organoid Growth Medium
Hepatic organoids show efficient growth in HepatiCult™ OGM across multiple donors and passages with potential for indefinite culture. Organoids initiated using the serum-free workflow exhibited comparable growth rates when expanded in HepatiCult™ OGM (open markers).
Figure 5. Proliferating Hepatic Organoids Display Characteristics of Hepatic Progenitors
Human liver organoids grown in HepatiCult™ OGM display characteristics of proliferating hepatic progenitors observed through immunocytochemistry staining of (A) KI67, (B) HNF4A and (C) SOX9. Proliferating hepatic organoids also display characteristics of the hepatic epithelium including expression of (A) EPCAM. (B, C) Nuclei are counterstained with DAPI.
Figure 6. Proliferating Hepatic Organoids Maintain Genetic Expression Across Multiple Passages
Liver organoids maintained in HepatiCult™ OGM express stem cell markers (A) LGR5 and (B) AXIN2, ductal markers (C) SOX9 and (D) KRT19, as well as hepatic marker (E) HNF4a and (F) Albumin (ALB) across multiple passages, with minimal albumin expression observed during culture in HepatiCult™ OGM. Expression levels were measured by qPCR and normalized to TBP and UBC housekeeping genes to quantify relative expression levels. (mean ± SD; n = 2-5 organoid lines), * p < 0.05.
Figure 7. Organoid Differentiation Induces Changes in Organoid Morphology
Organoids exhibit a compact and dense morphology, often comprising thickened epithelia, upon switching cultures to HepatiCult™ Organoid Differentiation Medium (ODM). Shown are images of the same culture well over the course of the differentiation, including (A) day two of culture in HepatiCult™ OGM, (B) day five of culture, immediately after switching organoid cultures from HepatiCult™ OGM to HepatiCult™ ODM, (C) day seven of culture (two days after switching to ODM), (D) day ten of culture (five days after switching to ODM), and (E) day 15 of culture (ten days after switching to ODM). (F) Magnification of the rectangular section highlighted in (E).
Figure 8. Differentiation of Hepatic Organoids in HepatiCult™ ODM Induces Changes in Gene Expression Consistent With Hepatic Maturation
Upon differentiation in HepatiCult™ ODM, liver organoids show changes in gene expression with a decrease in expression of stem cell marker LGR5, as well as of ductal markers CK19, CK7, and SOX9, and an increase in expression of hepatic markers HNF4A, ALB, CYP3A4, and ASGR1. Each replicate represents an individual donor sample analyzed by qPCR at passage 4 on day 8 in HepatiCult™ OGM and day 15 in HepatiCult™ ODM, showing relative gene expression levels normalized to TBP and UBC housekeeping genes.
Figure 9. Differentiated Hepatic Organoids Demonstrate Functionality of Mature Hepatocytes
Upon differentiation in HepatiCult™ ODM, liver organoids were assayed for (A) albumin secretion, (B) CYP3A4 activity, (C) total bile acid production, and (D) urea production. Hepatic functionalities were compared to HepG2 cells and primary human hepatocytes (PHH), which were cultured in supplier-recommended media. Albumin secretion was detected using an ELISA kit (Abcam), total bile acid and urea production were analysed using colorimetric kits (Abcam), and CYP43A4 activity, referring to baseline activity without induction, was determined using the Luciferin-IPA kit (Promega). (mean ± SD; n = 3 organoid lines across 2 experiments, n = 2-3 technical replicates of HepG2 in 1 experiment, and n = 3 cryopreserved PHH donor samples in 1 experiment), * p < 0.05; ** p < 0.01.
Figure 10. HepatiCult™ Organoid Kit Supports the Growth and Differentiation of Porcine Liver Organoids
Porcine liver organoids were established in HepatiCult™ Organoid Initiation Medium, and subsequently expanded for 4 passages in (A) HepatiCult™ Organoid Growth Medium (Human) and differentiated in (B, C) HepatiCult™ Organoid Differentiation Medium (Human). Organoids are stained with basolateral protein marker p120 (green), apical membrane and bile canaliculi marker F-Actin (purple), and nuclear dye Hoechst (blue). (D) Magnification of Panel C indicates bile canaliculi formation as seen through F-Actin staining. Scale bars = 50 μm. Data used with permission from Dr. Amy Engevik (Vanderbilt University Medical Center)
Protocols and Documentation
Find supporting information and directions for use in the Product Information Sheet or explore additional protocols below.
Resources and Publications
Educational Materials (14)
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HepatiCult™ Organoid Growth Medium (Human)
This product was developed under a license to intellectual property owned by Hubrecht Organoid Technology (HUB). This product is sold for research use only. Purchase of this product does not include the right to use this product for growing organoids for drug screening aiming for commercial gain or for other commercial purposes. Purchasers wishing to use the product for purposes other than research use should contact HUB to obtain a further license (an “Organoid-Growth License”). Purchasers may apply for an Organoid-Growth License from HUB and such license will not be unreasonably withheld by HUB.
PRODUCTS ARE FOR RESEARCH USE ONLY AND NOT INTENDED FOR HUMAN OR ANIMAL DIAGNOSTIC OR THERAPEUTIC USES UNLESS OTHERWISE STATED. FOR ADDITIONAL INFORMATION ON QUALITY AT STEMCELL, REFER TO WWW.STEMCELL.COM/COMPLIANCE.