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Karyotype
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This is a human cell line with near-diploid chromosome counts. The modal chromosome number was 47, occurring in 36% of cells. The rate of cells with a higher ploidy count was 3.9%. Twelve markers were common to most cells. Among them were del(1) (q32.1), der (5)t(5;13) (p15.33;q11), i(5p), der(1)t(1;?) (p34.3;?) and der (6)t(6;7) (p25.3;q21.2). All markers were present in single copy per cell. Normal N1 and N6 were absent. There were two normal X chromosomes. No other abnormalities were detected.
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Derivation
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This line was derived from a lymph node metastasis of a pulmonary mucoepidermoid carcinoma.
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Genes Expressed
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keratin; vimentin,The cells retain their mucoepidermoid characteristics in culture as determined by their ultrastructure and expression of multiple markers of squamous differentiation. TANK cells show reactivity with human alloantisera specific for the HLA A1, A3, A10, A19, B12, B17, B22 and B40 cross-reactive groups.
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Comments
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The cells were isolated in a chemically defined medium (HITES) and later adapted to growth in media supplemented with serum. The cells retain their mucoepidermoid characteristics in culture as determined by their ultrastructure and expression of multiple markers of squamous differentiation. The cells support the growth of hepatitis B virus and are negative for L-DOPA decarboxylase. The cells stain positive for keratin and vimentin and are mucicarmine positive but are negative for neurofilament triplet protein.
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