Genetic alterations of the tumor suppressor gene WWOX in esophageal squamous cell carcinoma

Tamotsu Kuroki, Francesco Trapasso, Takeshi Shiraishi, Hansjuerg Alder, Koshi Mimori, Masaki Mori, Carlo M. Croce

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Abstract

The WWOX (WW domain containing oxidoreductase) gene was recently identified as a candidate tumor suppressor gene at 16q23.3-24.1, a chromosome region that spans the common fragile site FRA16D. To evaluate the potential role of the WWOX gene in esophageal squamous cell carcinomas, we examined 36 tumors for genetic alterations of the WWOX gene. Loss of heterozygosity (LOH) at the WWOX locus was observed in 14 (39%) tumors. A tumor-specific missense mutation was found in one tumor, and LOH analysis had shown that the other allele was missing. Furthermore, we detected aberrant WWOX gene transcripts with absence of exons 6-8 in two tumors, and complete absence of transcript in one tumor. These results indicate that alteration and inactivation of the WWOX gene may play a role in esophageal squamous cell carcinogenesis.

Original languageEnglish
Pages (from-to)2258-2260
Number of pages3
JournalCancer Research
Volume62
Issue number8
Publication statusPublished - Apr 15 2002

All Science Journal Classification (ASJC) codes

  • Oncology
  • Cancer Research

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    Kuroki, T., Trapasso, F., Shiraishi, T., Alder, H., Mimori, K., Mori, M., & Croce, C. M. (2002). Genetic alterations of the tumor suppressor gene WWOX in esophageal squamous cell carcinoma. Cancer Research, 62(8), 2258-2260.