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Identification of three distinct regions of allelic deletions on the short arm of chromosome 8 in hepatocellular carcinoma

Abstract : The chromosome 8p is associated with a large number of allelic imbalances in epithelial tumors including hepatocellular carcinoma (HCC). However, no tumor suppressor gene has been identified so far in this particular region of the genome. To further clarify the pattern of allelic deletions on chromosome 8p in HCC, we have undertaken high-density polymorphic marker analysis of 109 paired normal and primary tumor samples using 40 microsatellites positioned every 2 cm in average throughout 8p. We found that 60% of the tumors exhibited loss of heterozygosity (LOH) at one or more loci at 8p with three distinct minimal deleted areas: a 13 cm region in the distal part of 8p21, a 9 cm area in the more proximal portion of 8p22 and a 5 cm area in 8p23. These data strongly suggest the presence of at least three novel tumor suppressor loci on 8p in hepatocellular carcinoma.
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Submitted on : Wednesday, May 26, 2021 - 3:45:00 PM
Last modification on : Monday, July 19, 2021 - 4:33:09 PM

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Pascal Pineau, Hisaki Nagai, Sylvie Prigent, Yu Wei, Gabor Gyapay, et al.. Identification of three distinct regions of allelic deletions on the short arm of chromosome 8 in hepatocellular carcinoma. Oncogene, Nature Publishing Group, 1999, 18 (20), pp.3127-3134. ⟨10.1038/sj.onc.1202648⟩. ⟨pasteur-03237343⟩

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