Volume 74, Issue 3 pp. 1445-1460
Original Article

A Mouse Model of Cholangiocarcinoma Uncovers a Role for Tensin-4 in Tumor Progression

Mickaël Di-Luoffo

Mickaël Di-Luoffo

de Duve Institute, Université catholique de Louvain, Brussels, Belgium

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Sophie Pirenne

Sophie Pirenne

de Duve Institute, Université catholique de Louvain, Brussels, Belgium

Department of Pathology, Cliniques Universitaires Saint-Luc, Université catholique de Louvain, Brussels, Belgium

These authors contributed equally to this work.Search for more papers by this author
Thoueiba Saandi

Thoueiba Saandi

de Duve Institute, Université catholique de Louvain, Brussels, Belgium

These authors contributed equally to this work.Search for more papers by this author
Axelle Loriot

Axelle Loriot

de Duve Institute, Université catholique de Louvain, Brussels, Belgium

These authors contributed equally to this work.Search for more papers by this author
Claude Gérard

Claude Gérard

de Duve Institute, Université catholique de Louvain, Brussels, Belgium

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Nicolas Dauguet

Nicolas Dauguet

de Duve Institute, Université catholique de Louvain, Brussels, Belgium

CYTF Platform, Université catholique de Louvain, Brussels, Belgium

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Fátima Manzano-Núñez

Fátima Manzano-Núñez

de Duve Institute, Université catholique de Louvain, Brussels, Belgium

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Natália Alves Souza Carvalhais

Natália Alves Souza Carvalhais

VIB Center for Cancer Biology and KU Leuven Department of Oncology, University of Leuven, Leuven, Belgium

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Florence Lamoline

Florence Lamoline

de Duve Institute, Université catholique de Louvain, Brussels, Belgium

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Sabine Cordi

Sabine Cordi

de Duve Institute, Université catholique de Louvain, Brussels, Belgium

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Katarzyna Konobrocka

Katarzyna Konobrocka

de Duve Institute, Université catholique de Louvain, Brussels, Belgium

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Vitaline De Greef

Vitaline De Greef

de Duve Institute, Université catholique de Louvain, Brussels, Belgium

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Mina Komuta

Mina Komuta

Department of Pathology, Keio University School of Medicine, Tokyo, Japan

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Georg Halder

Georg Halder

VIB Center for Cancer Biology and KU Leuven Department of Oncology, University of Leuven, Leuven, Belgium

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Patrick Jacquemin

Patrick Jacquemin

de Duve Institute, Université catholique de Louvain, Brussels, Belgium

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Frédéric P. Lemaigre

Corresponding Author

Frédéric P. Lemaigre

de Duve Institute, Université catholique de Louvain, Brussels, Belgium

ADDRESS CORRESPONDENCE AND REPRINT REQUESTS TO:

Frédéric P. Lemaigre, M.D., Ph.D.

de Duve Institute, Université catholique de Louvain

Avenue Hippocrate 75/B1-7503

B-1200 Brussels, Belgium

E-mail: [email protected]

Tel.: +32 2 764 7583

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First published: 26 March 2021
Citations: 3
Supported by the National Fund for Scientific Research FRS-FNRS (Belgium, grants J003717 and J.0105.19 to F.P.L.), Télévie (Belgium, grants 7.4544.18 to F.P.L. and M.K.; 7.8515.18 to P.J.), the Foundation against Cancer (Belgium, grants 2014-125 and 2018-078 to F.P.L.; 2016-089 and 2018-076 to P.J.), the D.G. Higher Education and Scientific Research of the French Community of Belgium (grant ARC 15/20-065 to F.P.L.), and the Fonds Joseph Maisin (Belgium, grant 2018-2019 to F.P.L. and P.J.). S.P. holds a Ph.D. fellowship from Télévie (Belgium, grant 7.4544.18). N.D. is supported by the Belgian National Lottery. P.J. is Senior Research Associate at the FRS-FNRS (Belgium). N.A.S. and G.H. were supported by The Research Foundation–Flanders (FWO; grants G0C2418N and G069321N).
Potential conflict of interest: Nothing to report.

Abstract

Background and Aims

Earlier diagnosis and treatment of intrahepatic cholangiocarcinoma (iCCA) are necessary to improve therapy, yet limited information is available about initiation and evolution of iCCA precursor lesions. Therefore, there is a need to identify mechanisms driving formation of precancerous lesions and their progression toward invasive tumors using experimental models that faithfully recapitulate human tumorigenesis.

Approach and Results

To this end, we generated a mouse model which combines cholangiocyte-specific expression of KrasG12D with 3,5-diethoxycarbonyl-1,4-dihydrocollidine (DDC) diet-induced inflammation to mimic iCCA development in patients with cholangitis. Histological and transcriptomic analyses of the mouse precursor lesions and iCCA were performed and compared with human analyses. The function of genes overexpressed during tumorigenesis was investigated in human cell lines. We found that mice expressing KrasG12D in cholangiocytes and fed a DDC diet developed cholangitis, ductular proliferations, intraductal papillary neoplasms of bile ducts (IPNBs), and, eventually, iCCAs. The histology of mouse and human IPNBs was similar, and mouse iCCAs displayed histological characteristics of human mucin-producing, large-duct–type iCCA. Signaling pathways activated in human iCCA were also activated in mice. The identification of transition zones between IPNB and iCCA on tissue sections, combined with RNA-sequencing analyses of the lesions supported that iCCAs derive from IPNBs. We further provide evidence that tensin-4 (TNS4), which is stimulated by KRASG12D and SRY-related HMG box transcription factor 17, promotes tumor progression.

Conclusions

We developed a mouse model that faithfully recapitulates human iCCA tumorigenesis and identified a gene cascade which involves TNS4 and promotes tumor progression.

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