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Mutational alterations of the p16CDKN2A tumor suppressor gene have low incidence in mesenchymal chondrosarcoma.

Abstract：

:Mutational inactivation of the cyclin-dependent kinase inhibitors (CDKIs) (p16INK4A/MTS1) tumor suppressor gene has been found in a variety of human tumor types. To investigate the involvement of CDKI abnormality in mesenchymal chondrosarcoma, alterations of CDKIs were examined in human mesenchymal chondrosarcoma tissues using a quantitative DNA/PCR, PCR-SSCP. Seven of 33 specimens (21.2%) showed abnormally low levels of p16CDKN2A amplification, suggesting that the allelic deletion of the gene might be a less frequent event in progression of this tumor. To detect subtle sequence alterations such as point mutations, SSCP analysis of the entire coding region of the p16CDKN2A gene, exons 1, 2, and 3 regions, showed no altered SSCP patterns in 33 mesenchymal chondrosarcoma specimens. A low incidence of genetic alterations of the p16CDKN2A was found in mesenchymal chondrosarcoma. Through this study, we conclude that alteration of the p16CDKN2A gene does not participate significantly in the tumorigenesis of mesenchymal chondrosarcoma.

journal_name

Oncol Res

journal_title

Oncology research

authors

Bae DK,Park YK,Chi SG,Lee CW,Unni KK

doi

10.3727/000000001108747381

subject

Has Abstract

pub_date

2000-01-01 00:00:00

pages

5-10

issue

1

eissn

0965-0407

issn

1555-3906

journal_volume

12

pub_type

杂志文章

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