Journal
CANCER INVESTIGATION
Volume 27, Issue 6, Pages 661-668Publisher
TAYLOR & FRANCIS INC
DOI: 10.1080/07357900802563010
Keywords
BRM; Head and neck squamous cell carcinoma; LOH; Tumor suppressor gene; BRG1; 9p24
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Funding
- Ministry of Education, Culture, Sports, Science and Technology [19592109, 17406027, 20791337]
- Japan Science and Technology Agency
- Sumitomo Trust Haraguchi Memorial Cancer Research Promotion
- Astrazeneca Research Grant
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We have analyzed allelic loss of the short arm of chromosome 9 in 39 head and neck cancers using 13 polymorphic markers and found two deletions of hot spots at 9p21 and 9p24. Loss of heterozygosity was detected at least at one locus in 28 of 39 cases (71.8%). P16, a well-known tumor suppressor gene, is considered to be a target for deletion of the 9p21 region. However, novel frequent chromosomal deletion and a candidate tumor suppressor gene, BRM at the 9p24 region, were detected. Moreover, comparison of clinicopathological variables demonstrated that loss of heterozygosity at the BRM locus was associated with a worse prognosis.
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