Isolation and characterization of a near-haploid human cell line
- PMID: 10527618
- DOI: 10.1006/excr.1999.4656
Isolation and characterization of a near-haploid human cell line
Abstract
Mammalian somatic cells are usually diploid. Occasional rare human tumors have been shown to have a hypodiploid karyotype. We have isolated a near-haploid subclone (P1-55) from a heterogeneous human leukemia cell line, KBM-7. These near-haploid cells have approximately half the human diploid DNA content and have a haploid karyotype except for a disomy of chromosome 8 (25, XY, +8, Ph(+)). This cell line maintains a majority of cells with a near-haploid karyotype for at least 12 weeks in culture. By serial subcloning, we have isolated near-haploid subclones that maintain ploidy for at least 8 months in culture. Near-haploid cells can also be efficiently isolated from mixed ploidy cultures by size selection. The availability of this human near-haploid cell line should facilitate the genetic analysis of cultured human cells.
Copyright 1999 Academic Press.
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