Targeting ribonucleotide reductase by 3-AP in primary effusion lymphoma

KSHV is a principal causative agent of primary effusion lymphoma (PEL) which is lacking of effective treatment. Our previous data have showed that HGF/c-MET pathway is highly active within KSHV+ PEL cells and plays important role in tumor cell survival/growth. By using microarray analysis, we have identified the global gene profile controlled by HGF/c-MET pathway within KSHV+ PEL cell-lines and several novel “druggable” candidates closely related to cancer cell survival/growth, including ribonucleotide reductase (RR). We continue to use microarray analysis to identify the gene profile affected within PEL cells exposure to RR inhibitor, 3-AP. PEL cells were treated with vehicle control or RR inhibitor 3-AP (2.5 µM) for 48 h, and the gene expression signature was compared to respective vehicle controls