Granted Patent
B2
US 12,331,314 · App. 16/906,515 · Granted Jun 17, 2025
Culture method for organoids
Inventors:
Meritxell Huch Ortega (Utrecht, NL); Johannes Carolus Clevers (Utrecht, NL); Sylvia Fernandez Boj (Utrecht, NL)
C12N5/0602A61K35/39A61K35/407C12N5/067C12N5/0671C12N5/0676C12N5/0677C12N2501/01C12N2501/11C12N2501/115C12N2501/119C12N2501/12C12N2501/15C12N2501/155C12N2501/19C12N2501/30C12N2501/345C12N2501/415C12N2501/42C12N2501/999C12N2503/02Y02A50/30
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Abstract
The invention relates to improved culture methods for expanding epithelial stem cells and obtaining organoids, to culture media involved in said methods, and to uses of said organoids.
Claims (15)
1. A differentiation medium comprising a basal medium for animal or human cells to which is added one or more receptor tyrosine kinase ligands, a Notch inhibitor, a compound that induces the phosphorylation of SMAD1 or SMAD5, and a TGF-beta inhibitor.
2. The differentiation medium of claim 1 , wherein the compound that induces the phosphorylation of SMAD1 or SMAD5 is a BMP pathway activator.
3. The differentiation medium of claim 2 , wherein the BMP pathway activator is selected from one or more of BMP7, BMP4 and BMP2.
4. The differentiation medium of claim 1 , wherein the one or more receptor tyrosine kinase ligands are selected from one or more of the group: FGF, HGF and EGF.
5. The differentiation medium of claim 4 , wherein the FGF is an FGF able to bind to FGFR2 or FGFR4.
6. The differentiation medium of claim 5 , wherein the FGF is FGF19.
7. The differentiation medium of claim 1 , wherein the Notch inhibitor is a gamma-secretase inhibitor.
8. The differentiation medium of claim 1 , wherein the differentiation medium further comprises a glucocorticoid.
9. The differentiation medium of claim 1 , wherein the TGF-beta inhibitor is a small molecule inhibitor of ALK4, ALK5 or ALK7.
10. The differentiation medium of claim 9 , wherein the TGF-beta inhibitor is selected from A83-01, SB-431542, SB-505124, SB-525334, LY 364947, SD-208, and SJN 2511.
11. The differentiation medium of claim 1 , wherein the cells are epithelial stem cells are from the liver, pancreas, intestine, stomach, prostate, lung, breast, ovarian, salivary gland, hair follicle, skin, oesophagus or thyroid.
12. The differentiation medium of claim 7 , wherein the gamma-secretase inhibitor is DAPT, dibenzazepine (DBZ), benzodiazepine (BZ), or LY-411575.
13. The differentiation medium of claim 8 , wherein the glucocorticoid is dexamethasone or cortisone.
14. An organoid in the differentiation medium of claim 1 .
15. The organoid of claim 14 , wherein the organoid has a doubling time of less than 65 hours.
Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST
Recorded Jul 20, 2020
From: HUCH ORTEGA, MERITXELL; CLEVERS, JOHANNES CAROLUS; FERNANDEZ BOJ, SYLVIA
To: KONINKLIJKE NEDERLANDSE AKADEMIE VAN WETENSCHAPPEN
Reel/Frame 053248/0528 →
Priority Claims (2)
GB 1408764
· May 16, 2014
· national
GB 1422184
· Dec 12, 2014
· national
Continuity (3)
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