Rrp1b, a new candidate susceptibility gene for breast cancer progression and metastasis.

Autor: Nigel P S Crawford, Xiaolan Qian, Argyrios Ziogas, Alex G Papageorge, Brenda J Boersma, Renard C Walker, Luanne Lukes, William L Rowe, Jinghui Zhang, Stefan Ambs, Douglas R Lowy, Hoda Anton-Culver, Kent W Hunter
Jazyk: angličtina
Rok vydání: 2007
Předmět:
Zdroj: PLoS Genetics, Vol 3, Iss 11, p e214 (2007)
Druh dokumentu: article
ISSN: 1553-7390
1553-7404
DOI: 10.1371/journal.pgen.0030214
Popis: A novel candidate metastasis modifier, ribosomal RNA processing 1 homolog B (Rrp1b), was identified through two independent approaches. First, yeast two-hybrid, immunoprecipitation, and functional assays demonstrated a physical and functional interaction between Rrp1b and the previous identified metastasis modifier Sipa1. In parallel, using mouse and human metastasis gene expression data it was observed that extracellular matrix (ECM) genes are common components of metastasis predictive signatures, suggesting that ECM genes are either important markers or causal factors in metastasis. To investigate the relationship between ECM genes and poor prognosis in breast cancer, expression quantitative trait locus analysis of polyoma middle-T transgene-induced mammary tumor was performed. ECM gene expression was found to be consistently associated with Rrp1b expression. In vitro expression of Rrp1b significantly altered ECM gene expression, tumor growth, and dissemination in metastasis assays. Furthermore, a gene signature induced by ectopic expression of Rrp1b in tumor cells predicted survival in a human breast cancer gene expression dataset. Finally, constitutional polymorphism within RRP1B was found to be significantly associated with tumor progression in two independent breast cancer cohorts. These data suggest that RRP1B may be a novel susceptibility gene for breast cancer progression and metastasis.
Databáze: Directory of Open Access Journals
Externí odkaz: