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DRM/GREMLIN (CKTSF1B1) maps to human chromosome 15 and is highly expressed in adult and fetal brain

  1. Author:
    Topol, L. Z.
    Modi, W. S.
    Koochekpour, S.
    Blair, D. G.

  2. Author Address

    Blair DG NCI, Intramural Res Support Program, SAIC Frederick, Frederick Canc Res & Dev Ctr POB B,Bldg 469,Rm 102 Ft Detrick, MD 21702 USA NCI, Intramural Res Support Program, SAIC Frederick, Frederick Canc Res & Dev Ctr Ft Detrick, MD 21702 USA NCI, Basic Res Lab Frederick, MD 21701 USA NCI, ABL, Frederick Canc Res & Dev Ctr Frederick, MD 21701 USA
    1. Year: 2000
  2. Journal: Cytogenetics and Cell Genetics
    1. 89
    2. 1-2
    3. Pages: 79-84
  4. Type of Article: Article
  1. Abstract:

    We have mapped and characterized the human homolog of Drm/Gremlin (CKTFS1B1), a member of a family of BMP antagonists that have been linked to both developmental and transformation-related functions. By screening a human cDNA library, we isolated a 3.3-kb cDNA containing the 552-bp region encoding the human DRM protein. CKTFS1B1 was localized on human chromosome 15q13 --> q15 by somatic cell hybrid analysis and, more precisely, using radiation hybrids, to a region of markers linked to SGNE1, secretory granule neuroendocrine protein 1 and RYR3, the ryanodyne receptor 3. Northern blot analysis showed the presence of a single DRM-specific mRNA expressed ill different human tissues, including brain, ovary, intestine and colon. In the brain, DRM expression is associated with the region localized around the internal capsule in the large subcortical nuclei. DRM appears to be predominantly expressed in normal cells and tissues, including normal neurons, astrocytes and fibroblasts. Interestingly, we detected DRM expression in normal cells obtained from several patients, but not in tumor cell lines established from the same patients. The data suggest that down-regulation of DRM is associated with tumor progression, and support the hypothesis that human DRM may play an important role during both neuroembryological development and carcinogenesis. Copyright(C)2000S.KargerAG,Basel. [References: 30]

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