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Blood. 1992 Mar 1;79(5):1148-54.

Molecular cloning of cDNAs for the human granulocyte colony-stimulating factor receptor from HL-60 and mapping of the gene to chromosome region 1p32-34.

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  • 1Department of Medicine, University of Pittsburgh School of Medicine, PA.


Early studies examining the effects of purified or recombinant granulocyte colony-stimulating factor (G-CSF) on human leukemia cell lines demonstrated that some cell lines, such as HL-60, could be induced to differentiate in response to G-CSF. In two recent studies reporting the cloning of the human G-CSF receptor (hGCSFR), four classes of receptor cDNA were identified and, surprisingly, the message for this receptor was reportedly expressed by HL-60 at either very low levels or not at all. Using a mouse G-CSF receptor probe, we cloned and sequenced a cDNA for hGCSFR from an HL-60 cDNA library in plasmid and used it to identify 31 additional clones from an HL-60 cDNA library in phage. Polymerase chain reaction analysis of the 31 phage clones established that 29 were derived from class I hGCSFR mRNA, one was derived from class III mRNA, and one was derived from class IV mRNA. In addition, the hGCSFR gene was chromosomally localized by Southern blot analysis of its segregation pattern in a panel of rodent-human hybrid DNAs using the radiolabeled cDNA probe. The hGCSFR locus was present in hybrids retaining the distal short arm of human chromosome 1 and absent in hybrids that did not retain this region. Chromosomal in situ hybridization refined the localization of the hGCSFR gene to region 1p32-p34. The combination of hybrid DNA analysis and in situ hybridization places the hGCSFR gene telomeric to the CSF1, JUN, and TCL-5 loci.

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