Bladder Cancer Organoids for Transplantation
Source Lee et al., 2018 · Columbia University Medical Center · 10.1016/j.cell.2018.03.017
Abstract
This protocol establishes a biobank of patient-derived bladder tumor organoid lines that recapitulate the histopathological and molecular diversity of human urothelial carcinoma. Organoids are cultured in three-dimensional Matrigel culture and can be serially passaged, cryopreserved, and interconverted with orthotopic xenografts to model tumor evolution and evaluate drug responses.
Protocol overview
39 steps across 6 phases
- a Collect tumor tissue from patient
- b Prepare transport medium
- c Place tumor tissue in transport medium
- a Prepare organoid culture medium
- b Wash tissue
- c Mince tissue
- d Enzymatic digestion with collagenase/hyaluronidase
- e First centrifugation
- f Second centrifugation
- g Trypsin dissociation
- h Stop trypsinization
- i Centrifuge dissociated cells
- j Wash dissociated cells
- k Filter dissociated cells
- l Count and assess cell clusters
- a Prepare Matrigel-media mixture
- b Plate organoid drops
- c Solidify Matrigel drops
- d Add culture medium
- e Initial culture period
- a First medium change
- b Continue regular medium changes
- c First passage preparation
- d Collect organoids after dispase treatment
- e Wash organoids
- f Trypsin dissociation of organoids
- g Mechanical dissociation
- h Assess dissociation
- a Re-plate dissociated organoids
- b Solidify Matrigel and add medium
- c Continue culture
- d Define successful establishment
- a Prepare organoids for freezing
- b Prepare cryopreservation medium
- c Resuspend cells in cryopreservation medium
- d Aliquot into cryovials
- e Controlled-rate freezing
- f Transfer to liquid nitrogen
- g Thawing and recovery
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Attribution
This SOP was written by Organthis based on the published method in Lee et al., 2018. Once the originating laboratory has confirmed it, the SOP is marked Verified.
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