| 摘要 |
Described is a biologically pure culture of an immortal human parotid based epithelial cell. The present invention is concerned with the establishment in serum-free medium of normal diploid epithelial cell lines from the human parotid gland. The terms "diploid chromosome complement" mean that, as determined by karyotype analysis, the cells have neither gained or lost any chromosomes and do not appear to show any structural alterations.
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