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Human thyroid tumor cell lines derived from different tumor types present a common dedifferentiated phenotype

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van Staveren, Wilma C.G., Solís, David Weiss, Delys, Laurent, Duprez, Laurence, Andry, Guy, Franc, Brigitte, Thomas, Gerry, Libert, Frédérick +3 more·2007·Cancer Research

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Abstract

Cell lines are crucial to elucidate mechanisms of tumorigenesis and serve as tools for cancer treatment screenings. Therefore, careful validation of whether these models have conserved properties of in vivo tumors is highly important. Thyrocyte-derived tumors are very interesting for cancer biology studies because from one cell type, at least five histologically characterized different benign and malignant tumor types can arise. To investigate whether thyroid tumor–derived cell lines are representative in vitro models, characteristics of eight of those cell lines were investigated with microarrays, differentiation markers, and karyotyping. Our results indicate that these cell lines derived from differentiated and undifferentiated tumor types have evolved in vitro into similar phenotypes with gene expression profiles the closest to in vivo undifferentiated tumors. Accordingly, the absence of expression of most thyrocyte-specific genes, the nonresponsiveness to thyrotropin, as well as their large number of chromosomal abnormalities, suggest that these cell lines have acquired characteristics of fully dedifferentiated cells. They represent the outcome of an adaptation and evolution in vitro, which questions the reliability of these cell lines as models for differentiated tumors. However, they may represent useful models for undifferentiated cancers, and by their comparison with differentiated cells, can help to define the genes involved in the differentiation/dedifferentiation process. The use of any cell line as a model for a cancer therefore requires prior careful and thorough validation for the investigated property. [Cancer Res 2007;67(17):8113–20]

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  1. Ain KB, Taylor KD, Banks ER, Pettigrew AL. Downloaded from http://aacrjournals.org/cancerres/article-pdf/67/17/8113/2572758/8113.pdf by guest on 29 April 2025 www.aacrjournals.org Characterization of an immortalized cell-line (KAK-1) from a benign human thyroid follicular adenoma. Thyroid 1992;2:S49.
  2. Fabien N, Fusco A, Santoro M, et al. Description of a human papillary thyroid-carcinoma cell-line-morpho- logic study and expression of tumoral markers. Cancer 1994;73:2206-12.

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Authors
van Staveren, W. C. G., Solís, D. W., Delys, L., Duprez, L., Andry, G., Franc, B., Thomas, G., Libert, F., Dumont, J. E., Detours, V., & Maenhaut, C.
Affiliations
  • 1Institute of Interdisciplinary Research (IRIBHM);
  • Erasmus Hospital (BE)
  • Université Libre de Bruxelles (BE)
  • Université de Versailles Saint-Quentin-en-Yvelines (FR)
  • Singleton Hospital (GB)
Venue
Cancer Research
Published
2007-09-01
Volume
67
Issue
17
Pages
8113-8120
ISSN
  • 0008-5472 (ISSN-L)
  • 1538-7445
OpenAlex
W2119644508
Cited by
123
References
54
Citations by year
2026: 1 · 2025: 4 · 2024: 6 · 2023: 13 · 2022: 2 · 2021: 6 · 2020: 3 · 2019: 7 · 2018: 4 · 2017: 6 · 2016: 5 · 2015: 10 · 2014: 6 · 2013: 9 · 2012: 9
FWCI
6.33
Type
journal article
Language
en
Open access
Locations
  • Cancer Research (publishedVersion)
  • PubMed (publishedVersion)
  • Dépôt institutionnel de l'Université libre de Bruxelles (Université Libre de Bruxelles) (submittedVersion)
Topics
  • Health Sciences › Medicine › Endocrinology, Diabetes and Metabolism › Thyroid Cancer Diagnosis and Treatment
  • Health Sciences › Medicine › Endocrinology, Diabetes and Metabolism › Thyroid Disorders and Treatments
  • Health Sciences › Medicine › Surgery › Thyroid and Parathyroid Surgery
Keywords
dedifferentiation, gene expression profiles, chromosomal abnormalities, in vitro evolution, cell line validation
MeSH terms
Adenoma, Carcinoma, Papillary, Cell Differentiation, Humans, Karyotyping, Organ Specificity, Phenotype, Thyroid Gland, Thyroid Neoplasms, Thyrotropin, Biomarkers, Tumor, Gene Expression Regulation, Neoplastic, Cluster Analysis, Oligonucleotide Array Sequence Analysis, Gene Expression Profiling, Cell Line, Tumor

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