Fetal colon cell line FHC exhibits tumorigenic phenotype, complex karyotype, and TP53 gene mutation
Language English Country United States Media print
Document type Journal Article, Research Support, Non-U.S. Gov't
PubMed
20193843
DOI
10.1016/j.cancergencyto.2009.11.009
PII: S0165-4608(09)00661-X
Knihovny.cz E-resources
- MeSH
- Apoptosis physiology MeSH
- Cell Adhesion physiology MeSH
- Cell Growth Processes physiology MeSH
- Cytogenetic Analysis methods MeSH
- Phenotype MeSH
- Genes, p53 * MeSH
- HCT116 Cells MeSH
- In Situ Hybridization, Fluorescence MeSH
- Carcinoembryonic Antigen metabolism MeSH
- Karyotyping MeSH
- Keratins metabolism MeSH
- Colon cytology metabolism physiology MeSH
- Humans MeSH
- DNA Mutational Analysis methods MeSH
- Mice, SCID MeSH
- Mice MeSH
- Cell Transformation, Neoplastic genetics pathology MeSH
- Colonic Neoplasms genetics pathology MeSH
- Fetus cytology MeSH
- DNA Damage MeSH
- Proto-Oncogene Mas MeSH
- Signal Transduction MeSH
- Comparative Genomic Hybridization MeSH
- Cell Line, Transformed MeSH
- Neoplasm Transplantation MeSH
- Animals MeSH
- Check Tag
- Humans MeSH
- Mice MeSH
- Female MeSH
- Animals MeSH
- Publication type
- Journal Article MeSH
- Research Support, Non-U.S. Gov't MeSH
- Names of Substances
- Carcinoembryonic Antigen MeSH
- Keratins MeSH
- MAS1 protein, human MeSH Browser
- Proto-Oncogene Mas MeSH
Stable cell lines obtained by spontaneous immortalization might represent early stages of malignant transformation and be useful experimental models for studies of mechanisms of cancer development. The FHC (fetal human cells) cell line has been established from normal fetal colonic mucosa. Detailed characterization of this cell line and mechanism of spontaneously acquired immortality have not been described yet. Therefore, we characterized the FHC cell line in terms of its tumorigenicity, cytogenetics, and TP53 gene mutation analysis. FHC cells displayed capability for anchorage-independent growth in semisolid media in vitro and formed solid tumors after transplantation into SCID (severe combined immunodeficiency) mice. This tumorigenic phenotype was associated with hypotriploidy and chromosome number ranging from 66 to 69. Results of comparative genetic hybridization arrays showed that most chromosomes included regions of copy number gains or losses. Region 8q23 approximately 8q24.3 (containing, e.g., MYC proto-oncogene) was present in more than 20 copies per nucleus. Moreover, we identified mutation of TP53 gene in codon 273; triplet CGT coding Arg was changed to CAG coding His. Expression of Pro codon 72 polymorphic variant of p53 was also detected. Mutation of TP53 gene was associated with abolished induction of p21(Waf1/Cip1) and MDM-2 proteins and resistance to apoptosis after genotoxic treatment. Because of their origin from normal fetal colon and their relative resistance to the induction of apoptosis, FHC cells can be considered a valuable experimental model for various studies.
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