The t(1;3) breakpoint-spanning genes LSAMP and NORE1 are involved in clear cell renal cell carcinomas

Jindong Chen, Weng-Onn Lui, Michele D. Vos, Geoffrey J. Clark, Masayuki Takahashi, Jacqueline Schoumans, Sok Kean Khoo, David Petillo, Todd Lavery, Jun Sugimura, Dewi Astuti, Chun Zhang, Susumu Kagawa, Eamonn R. Maher, Catharina Larsson, Arthur S. Alberts, Hiro-omi Kanayama, Bin Tean Teh

Research output: Contribution to journalArticlepeer-review

Abstract

By positional cloning, we identified two breakpoint-spanning genes in a familial clear cell renal cell carcinoma (CCRCC)-associated t(1;3)(q32.1;q13.3): LSAMP and NORE1 (RASSF1 homolog). Both genes are downregulated in 9 of 9 RCC cell lines. While the NORE1A promoter predominantly presents partial methylation in 6 of the cell lines and 17/53 (32%) primary tumors, the LSAMP promoter is completely methylated in 5 of 9 cell lines and in 14/53 (26%) sporadic and 4 familial CCRCCs. Expression of LSAMP and NORE1A proteins in CCRCC cell lines inhibited cell proliferation. These characteristics indicate that LSAMP and NORE1A may represent new candidate tumor suppressors for CCRCC.

Original languageEnglish
Pages (from-to)405-13
Number of pages9
JournalCancer cell
Volume4
Issue number5
DOIs
Publication statusPublished - Nov 2003

Keywords

  • Adaptor Proteins, Signal Transducing
  • Adenocarcinoma, Clear Cell/genetics
  • Animals
  • Apoptosis Regulatory Proteins
  • Base Sequence
  • Carcinoma, Renal Cell/genetics
  • Cell Adhesion Molecules, Neuronal/genetics
  • Cell Division/physiology
  • Cells, Cultured
  • Cloning, Molecular
  • DNA Methylation
  • GPI-Linked Proteins
  • Gene Expression Regulation, Neoplastic/physiology
  • Humans
  • Molecular Sequence Data
  • Monomeric GTP-Binding Proteins/genetics

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