The t(1;3) breakpoint-spanning genes LSAMP and NORE1 are involved in clear cell renal cell carcinomas
2003; Cell Press; Volume: 4; Issue: 5 Linguagem: Inglês
10.1016/s1535-6108(03)00269-1
ISSN1878-3686
AutoresJindong Chen, Weng‐Onn Lui, Michele D. Vos, Geoffrey Clark, Masayuki Takahashi, Jacqueline Schoumans, Sok Kean Khoo, David Petillo, Todd T. Lavery, Jun Sugimura, Dewi Astuti, Chun Zhang, Susumu Kagawa, Eamonn R. Maher, Catharina Larsson, Arthur S. Alberts, Hiro‐omi Kanayama, Bin Tean Teh,
Tópico(s)RNA modifications and cancer
ResumoBy 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.
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