Cited by 34Ovarian cancer diagnosis and treatmentCancer Cells and MetastasisBRCA gene mutations in cancer

Ovarian Carcinoma Patient Derived Xenografts Reproduce Their Tumor of Origin and Preserve an Oligoclonal Structure

Open access
Colombo, Pierre-Emmanuel, du Manoir, Stanislas, Orsetti, Béatrice, Bras-Gonçalves, Rui, Lambros, Mario B., MacKay, Alan, Nguyen, Tien-Tuan, Boissière, Florence +4 more·2015·Oncotarget

Abstract

// Pierre-Emmanuel Colombo 1,2 , Stanislas du Manoir 2,3 , Béatrice Orsetti 2,3,4 , Rui Bras-Gonçalves 2,3,4 , Mario B. Lambros 5 , Alan MacKay 5 , Tien-Tuan Nguyen 2,3 , Florence Boissière 6 , Didier Pourquier 7 , Frédéric Bibeau 7 , Jorge S. Reis-Filho 8 and Charles Theillet 2,3 1 Department of Surgical Oncology, Institut de Cancérologie de Montpellier, Montpellier, France 2 Institut de Recherche en Cancérologie de Montpellier, Université Montpellier, Montpellier, France 3 INSERM U1194, Montpellier, France 4 Institut de Cancérologie de Montpellier, Montpellier, France 5 Breakthrough Breast Cancer Research Centre, Institute of Cancer Research, London, UK 6 Unité de Recherche Translationnelle, Institut de Cancérologie de Montpellier, Montpellier, France 7 Department of Pathology, Institut de Cancérologie de Montpellier, Montpellier, France 8 Department of Pathology, Memorial Sloan Kettering Cancer Center, New York, NY, USA Correspondence to: Charles Theillet, email: // Jorge Reis-Filho, email: // Keywords : ovarian cancer, PDX, CNC, mutations, oligoclonality Received : April 10, 2015 Accepted : July 02, 2015 Published : July 31, 2015 Abstract Advanced Epithelial Ovarian Cancer (EOC) patients frequently relapse by 24 months and develop resistant disease. Research on EOC therapies relies on cancer cell lines established decades ago making Patient Derived Xenografts (PDX) attractive models, because they are faithful representations of the original tumor. We established 35 ovarian cancer PDXs resulting from the original graft of 77 EOC samples onto immuno-compromised mice. PDXs covered the diversity of EOC histotypes and graft take was correlated with early patient death. Fourteen PDXs were characterized at the genetic and histological levels. PDXs reproduced phenotypic features of the ovarian tumors of origin and conserved the principal characteristics of the original copy number change (CNC) profiles over several passages. However, CNC fluctuations in specific subregions comparing the original tumor and the PDXs indicated the oligoclonal nature of the original tumors. Detailed analysis by CGH, FISH and exome sequencing of one case, for which several tumor nodules were sampled and grafted, revealed that PDXs globally maintained an oligoclonal structure. No overgrowth of a particular subclone present in the original tumor was observed in the PDXs. This suggested that xenotransplantation of ovarian tumors and growth as PDX preserved at least in part the clonal diversity of the original tumor. We believe our data reinforce the potential of PDX as exquisite tools in pre-clinical assays.

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Authors
Colombo, P.-E., du Manoir, S., Orsetti, B., Bras-Gonçalves, R., Lambros, M. B., MacKay, A., Nguyen, T.-T., Boissière, F., Pourquier, D., Bibeau, F., Reis-Filho, J. S., & Theillet, C.
Affiliations
  • Institut de Recherche en Cancérologie de Montpellier (FR)
  • Institut de Recherche en Cancérologie de Montpellier, Université Montpellier, Montpellier, France
  • Inserm (FR)
  • Institute of Cancer Research (GB)
  • Unité de Recherche Translationnelle, Institut de Cancérologie de Montpellier, Montpellier, France
  • Memorial Sloan Kettering Cancer Center (US)
Venue
Oncotarget
Published
2015-07-31
Volume
6
Issue
29
Pages
28327-28340
ISSN
1949-2553 (ISSN-L)
OpenAlex
W1845067222
Cited by
34
References
39
Citations by year
2025: 4 · 2024: 4 · 2023: 3 · 2022: 6 · 2021: 3 · 2020: 4 · 2019: 2 · 2018: 2 · 2017: 2 · 2016: 3 · 2015: 1
FWCI
3.04
Type
journal article
Language
en
Open access
Licence
cc-by
Locations
  • Oncotarget (publishedVersion, cc-by)
  • PubMed Central (publishedVersion, cc-by)
  • PubMed (publishedVersion)
  • HAL (submittedVersion, cc-by)
Funders
  • Centre National de la Recherche Scientifique
  • Institut National Du Cancer
Topics
  • Health Sciences › Medicine › Reproductive Medicine › Ovarian cancer diagnosis and treatment
  • Health Sciences › Medicine › Oncology › Cancer Cells and Metastasis
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Genetics › BRCA gene mutations in cancer
Keywords
patient-derived xenografts, epithelial ovarian cancer, copy number alterations, oligoclonality, tumor heterogeneity, tumor evolution, clonal evolution, histological subtypes, tumor recurrence, graft take, tumor microenvironment, tumor stroma, tumor-infiltrating immune cells, tumor-infiltrating lymphocytes, tumor-infiltrating macrophages, tumor-infiltrating neutrophils, tumor-infiltrating dendritic cells, tumor-infiltrating T cells, tumor-infiltrating B cells, tumor-infiltrating NK cells, tumor-infiltrating myeloid cells, tumor-infiltrating Treg cells, tumor-infiltrating Th1 cells
MeSH terms
Adult, Aged, Aged, 80 and over, Animals, Clone Cells, Female, Humans, Mice, Nude, Middle Aged, Neoplasm Metastasis, Neoplasm Recurrence, Local, Ovarian Neoplasms, Prognosis, Transplantation, Heterologous, Gene Expression Regulation, Neoplastic, Survival Analysis, Gene Expression Profiling, Heterografts

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