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Deletion of IRF-1, mapping to chromosome 5q21. 1, in human leukemia and preleukemic myelodysplasia

Journal Article · · Science (Washington, D.C.); (United States)
;  [1]; ;  [2]; ; ; ; ;  [3];  [4];  [5]
  1. Univ. of New Mexico School of Medicine, Albuquerque (United States)
  2. Univ. of California, San Francisco (United States)
  3. Osaka Univ. (Japan)
  4. City of Hope Medical Center, Duarte, CA (United States)
  5. Univ. of Arizona Cancer Center, Tucson (United States)
One of the most frequent cytogenetic abnormalities in human leukemia and myelodysplasia is an interstitial deletion within chromosome 5q. A tumor suppressor gene has been hypothesized to lie in 5q31, the smallest commonly deleted region. IRF-1, a gene whose product manifests anti-oncogenic activity, was mapped to 5q31.1. IRF-1 lies between IL-5 and CDC25C and is centromeric to IL-3 and GM-CSF. Among these genes, only IRF-1 was consistently deleted at one or both alleles in 13 cases of leukemia or myelodysplasia with aberrations of 5q31. Inactivating rearrangements of one IRF-1 allele, accompanied by deletion of the second allele, were also identified in one case of acute leukemia. Thus, IRF-1 may be a critically deleted gene in human leukemia and myelodysplasia.
OSTI ID:
6660511
Journal Information:
Science (Washington, D.C.); (United States), Journal Name: Science (Washington, D.C.); (United States) Vol. 259:5097; ISSN SCIEAS; ISSN 0036-8075
Country of Publication:
United States
Language:
English

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