## Loss of heterozygosity (LOH ) at chromosome band 10q23 occurs frequently in a wide variety of human tumors. A recently identified candidate tumor suppressor gene, PTEN located on 10q23, is mutated in multiple advanced cancers. To explore whether PTEN is associated with human squamous cell carci
Genotypic analysis of tumor suppressor genes PTEN/MMAC1 and p53 in head and neck squamous cell carcinomas
β Scribed by Ying C. Henderson; Eric Wang; Gary L. Clayman
- Book ID
- 110079818
- Publisher
- John Wiley and Sons
- Year
- 1998
- Tongue
- English
- Weight
- 381 KB
- Volume
- 108
- Category
- Article
- ISSN
- 0023-852X
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## Abstract ## BACKGROUND Inactivation of the tumor suppressor gene __PTEN__/__MMAC1__/__TEP1__, located on chromosome 10q23, is a common event in advanced stages of diverse human malignancies. However, the prognostic role of __PTEN__ expression in patients with hepatocellular carcinoma (HCC) has
The presence of gene amplification was determined in 66 fresh head-and-neck SCC specimens using a battery of 9 different probes. Amplification of at least one gene was found in I 2 samples (18%), of which 7 were amplified at multiple loci (58%). We observed amplifications for EGFR (10% of samples) a
Abnormalities in the p53 gene were studied in a series of cell lines of human squamous-cell carcinoma of the head and neck (SCCHN) and in tumor tissues. Restriction-fragment-length polymorphism (RFLP), quantitative hybridization and immunochemical analysis of mutant p53 proteins were combined to det