Summary
Studies of human hematologic malignancies have provided sufficient data not only for the identification of nonrandom abnormalities of whole chromosomes, but also for determination of the specific chromosome regions involved. In clonal aberrations leading to an excess of chromosome No. 1, or a partial excess of No. 1, trisomy for bands 1q25 to 1q32 was noted in the myeloid cells obtained from every one of 35 patients who had various disorders, such as acute leukemia, polycythemia vera, or myelofibrosis. Similar chromosome changes were a consistent finding in various solid tumors as well. This rearrangement was not the result of a particularly fragile site in that region of the chromosome, since the break points in reciprocal translocations that involve No. 1 occurred almost exclusively in the short arm.
The nonrandom chromosome changes found in neoplastic cells can now be correlated with the gene loci on these chromosomes or chromosome segments as an attempt is made to identify specific genes that might be related to malignancy.
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Operated by The University of Chicago for the U.S. Department of Energy under Contract No. EY-76-C-02-0069. Research supported by a grant from The National Cancer Institute (CA 16910) and the Otho S.A. Sprague Foundation
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Rowley, J.D. Abnormalities of chromosome No. 1: Significance in malignant transformation. Virchows Arch. B Cell Path. 29, 139–144 (1978). https://doi.org/10.1007/BF02899347
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DOI: https://doi.org/10.1007/BF02899347