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Genetic analysis of tumorigenesis: V. Chromosomal analysis of tumorigenic and nontumorigenic diploid chinese hamster cell lines. 1980

R M Kitchin, and R Sager

The chromosomal constitution of four established diploid Chinese hamster embryo fibroblast (CHEF) cell lines is described. CHEF/18 exhibits anchorage-dependent growth and is not tumorigenic in nude mice. CHEF/16 has a high plating efficiency in methylcellulose and is highly tumorigenic in nude mice. Both CHEF/8 and CHEF/16 have a normal Giemsa banding pattern and constitutive heterochromatin distribution characteristic of normal diploid Chinese hamster cells and exhibit relatively little chromosomal variation within their cell populations. These results suggest that the nuclear changes responsible for tumorigenicity of CHEF/16 involve alterations below the level detectable by Giemsa banding analysis. Chromosome rearrangements were detected in two other CHEF cell lines; CHEF/205-30, a diploid, thioguanine-resistant derivative of CHEF/18, and CHEF/204-Bu 50, a diploid, 5-bromodeoxyuridine-resistant derivative of CHEF/16, which are being used as genetic markers in intraspecific somatic cell hybrids.

UI MeSH Term Description Entries
D007621 Karyotyping Mapping of the KARYOTYPE of a cell. Karyotype Analysis Methods,Analysis Method, Karyotype,Analysis Methods, Karyotype,Karyotype Analysis Method,Karyotypings,Method, Karyotype Analysis,Methods, Karyotype Analysis
D008297 Male Males
D009374 Neoplasms, Experimental Experimentally induced new abnormal growth of TISSUES in animals to provide models for studying human neoplasms. Experimental Neoplasms,Experimental Neoplasm,Neoplasm, Experimental
D002460 Cell Line Established cell cultures that have the potential to propagate indefinitely. Cell Lines,Line, Cell,Lines, Cell
D002869 Chromosome Aberrations Abnormal number or structure of chromosomes. Chromosome aberrations may result in CHROMOSOME DISORDERS. Autosome Abnormalities,Cytogenetic Aberrations,Abnormalities, Autosome,Abnormalities, Chromosomal,Abnormalities, Chromosome,Chromosomal Aberrations,Chromosome Abnormalities,Cytogenetic Abnormalities,Aberration, Chromosomal,Aberration, Chromosome,Aberration, Cytogenetic,Aberrations, Chromosomal,Aberrations, Chromosome,Aberrations, Cytogenetic,Abnormalities, Cytogenetic,Abnormality, Autosome,Abnormality, Chromosomal,Abnormality, Chromosome,Abnormality, Cytogenetic,Autosome Abnormality,Chromosomal Aberration,Chromosomal Abnormalities,Chromosomal Abnormality,Chromosome Aberration,Chromosome Abnormality,Cytogenetic Aberration,Cytogenetic Abnormality
D002871 Chromosome Banding Staining of bands, or chromosome segments, allowing the precise identification of individual chromosomes or parts of chromosomes. Applications include the determination of chromosome rearrangements in malformation syndromes and cancer, the chemistry of chromosome segments, chromosome changes during evolution, and, in conjunction with cell hybridization studies, chromosome mapping. Banding, Chromosome,Bandings, Chromosome,Chromosome Bandings
D002875 Chromosomes In a prokaryotic cell or in the nucleus of a eukaryotic cell, a structure consisting of or containing DNA which carries the genetic information essential to the cell. (From Singleton & Sainsbury, Dictionary of Microbiology and Molecular Biology, 2d ed) Chromosome
D004171 Diploidy The chromosomal constitution of cells, in which each type of CHROMOSOME is represented twice. Symbol: 2N or 2X. Diploid,Diploid Cell,Cell, Diploid,Cells, Diploid,Diploid Cells,Diploidies,Diploids
D006224 Cricetinae A subfamily in the family MURIDAE, comprising the hamsters. Four of the more common genera are Cricetus, CRICETULUS; MESOCRICETUS; and PHODOPUS. Cricetus,Hamsters,Hamster
D006570 Heterochromatin The portion of chromosome material that remains condensed and is transcriptionally inactive during INTERPHASE. Heterochromatins

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