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Sökning: WFRF:(Benassi M S)

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  • Asp, Julia, 1973-, et al. (författare)
  • Changes in p14(ARF) do not play a primary role in human chondrosarcoma tissues.
  • 2001
  • Ingår i: International journal of cancer. Journal international du cancer. - 0020-7136. ; 93:5, s. 703-5
  • Tidskriftsartikel (refereegranskat)abstract
    • The locus encoding the tumor suppressor p16 has been found to code for a second, different protein. This protein, p14(ARF), has been shown to protect p53 from degradation. Like p16, its gene is often altered in different cancers. In this study, the first unique exon, exon 1 beta, of p14(ARF), has been studied in 22 chondrosarcoma tissues using polymerase chain reaction, DNA sequencing and methylation-specific polymerase chain reaction. One chondrosarcoma was found to have exon 1 beta homozygously deleted, but neither mutations nor methylations were found in any of the chondrosarcomas. This indicates that genetic changes of p14(ARF) are a rare event in chondrosarcoma.
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  • Asp, Julia, 1973-, et al. (författare)
  • Changes of the p16 gene but not the p53 gene in human chondrosarcoma tissues.
  • 2000
  • Ingår i: International journal of cancer. Journal international du cancer. - 0020-7136. ; 85:6, s. 782-6
  • Tidskriftsartikel (refereegranskat)abstract
    • The role of two important tumour suppressor genes, p16 and p53, was evaluated in cartilaginous tumour tissues. Genomic DNA from 22 chondrosarcomas, 5 benign chondroid tumours, 1 sample of reactive proliferative cartilage and 2 samples of normal cartilage were analysed using polymerase chain reaction, single strand conformational polymorphism, DNA sequencing and methylation-specific polymerase chain reaction. The p16 gene was found to be partly methylated in 5 high-grade chondrosarcomas and homozygously deleted in 1 chondrosarcoma. Moreover, a polymorphism was detected in 3 malignant tumours, but not in benign tumours or normal cartilage. Analysis of the p53 gene revealed an unchanged structure in all samples. These findings show a role for p16, but not p53, in chondrosarcoma.
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