期刊
CLINICAL CANCER RESEARCH
卷 11, 期 8, 页码 2907-2918出版社
AMER ASSOC CANCER RESEARCH
DOI: 10.1158/1078-0432.CCR-04-0708
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- NCI NIH HHS [CA85799] Funding Source: Medline
- NINDS NIH HHS [NS40958, NS42927] Funding Source: Medline
Alterations of DNA copy number are believed to be important indicators of tumor progression in human astrocytoma. We used an array of bacterial artificial chromosomes to map relative DNA copy number in 50 primary glioblastoma multiforme tumors at similar to 1.4-Mb resolution. We identified 33 candidate sites for amplification and homozygous deletion in these tumors. We identified three major genetic subgroups within these glioblastoma multiforme tumors: tumors with chromosome 7 gain and chromosome 10 loss, tumors with only chromosome 10 loss in the absence of chromosome 7 gain, and tumors without copy number change in chromosomes 7 or 10. The significance of these genetic groups to therapeutics needs further study.
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