Localization of the gene for pigment epithelium-derived factor (PEDF) to chromosome 17p13.1 and expression in cultured human retinoblastoma cells

Joyce Tombran-Tink, Hemant Pawar, Anand Swaroop, Ignacio Rodriguez, Gerald J. Chader

    Research output: Contribution to journalArticlepeer-review

    73 Scopus citations

    Abstract

    The gene for pigment epithelium-derived factor (PEDF) was localized to chromosome 17 by the analysis of three independent somatic cell hybrid panels. Fluorescence in situ hybridization shows a specific hybridization signal at the terminal portion of the short arm of chromosome 17. PCR analysis of somatic cell hybrids containing specific regions of 17 was subsequently used to sublocalize PEDF to 17p13.1-pter. PEDF thus maps to a region containing a number of cancer-related loci and thus must be considered a candidate gene for these cancers. Preliminary studies with cultured human Y79 retinoblastoma cells indicate that expression of PEDF is associated with relatively undifferentiated, proliferating cells rather than their differentiated, slow-growing counterparts. This and the fact that the PEDF protein can act as a potent neurotrophic differentiating agent suggest that PEDF is linked to proliferative events that terminate in final phenotypic determination within specific cell lineages.

    Original languageEnglish (US)
    Pages (from-to)266-272
    Number of pages7
    JournalGenomics
    Volume19
    Issue number2
    DOIs
    StatePublished - Jan 15 1994

    All Science Journal Classification (ASJC) codes

    • Genetics

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