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  • Title: Fine mapping of a region of common deletion on chromosome arm 10p in human glioma.
    Author: Voesten AM, Bijleveld EH, Westerveld A, Hulsebos TJ.
    Journal: Genes Chromosomes Cancer; 1997 Oct; 20(2):167-72. PubMed ID: 9331567.
    Abstract:
    Allelic loss on chromosome 10 is a frequent event in high grade gliomas. Earlier studies have shown that in most cases a complete copy of chromosome 10 is lost in the tumor. To define more accurately and specifically the region of common deletion on chromosome arm 10p, we have screened a large series of gliomas for allelic losses that exclusively affect this part of the chromosome. Allelic loss profiles were determined for 127 gliomas, including 118 astrocytomas of various malignancy grades. Seventeen tumors displayed loss of part of chromosome 10. In three of these, only chromosome arm 10p sequences were lost. The interval between loci D10S559 and D10S435 in 10p15, with a length of approximately 800 kilobase pairs, was commonly deleted in the latter tumors, suggesting that this region may harbor a tumor suppressor gene important in glioma tumorigenesis. Comparison of the allelic loss profiles in the low and high grade astrocytomas revealed that astrocytoma progression is associated with increased loss of chromosome 10 sequences.
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