Mouse and human urothelial cancer organoids: A tool for bladder cancer research

Jasper Mullenders, Evelien de Jongh, Anneta Brousali, Mieke Roosen, Jan P A Blom, Harry Begthel, Jeroen Korving, Trudy Jonges, Onno Kranenburg, Richard Meijer, Hans C Clevers

Research output: Contribution to journal/periodicalArticleScientificpeer-review

Abstract

Bladder cancer is a common malignancy that has a relatively poor outcome. Lack of culture models for the bladder epithelium (urothelium) hampers the development of new therapeutics. Here we present a long-term culture system of the normal mouse urothelium and an efficient culture system of human bladder cancer cells. These so-called bladder (cancer) organoids consist of 3D structures of epithelial cells that recapitulate many aspects of the urothelium. Mouse bladder organoids can be cultured efficiently and genetically manipulated with ease, which was exemplified by creating genetic knockouts in the tumor suppressors Trp53 and Stag2. Human bladder cancer organoids can be derived efficiently from both resected tumors and biopsies and cultured and passaged for prolonged periods. We used this feature of human bladder organoids to create a living biobank consisting of bladder cancer organoids derived from 53 patients. Resulting organoids were characterized histologically and functionally. Organoid lines contained both basal and luminal bladder cancer subtypes based on immunohistochemistry and gene expression analysis. Common bladder cancer mutations like TP53 and FGFR3 were found in organoids in the biobank. Finally, we performed limited drug testing on organoids in the bladder cancer biobank.

Original languageEnglish
Pages (from-to)4567-4574
Number of pages8
JournalProceedings of the National Academy of Sciences of the United States of America
Volume116
Issue number10
DOIs
Publication statusPublished - 05 Mar 2019

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