Our identification of ErbB and Met signalling in a single lung cancer cell line, and the involvement in responsiveness to ErbB and Met inhibitors is consistent with other recent studies that highlighted functional cooperation between these two receptor families (Bean et al, 2007; Guo et al, 2008; Mueller et al, 2008; Shattuck et al, 2008; Yano et al, 2008). Here, MET is linked to lung cancer.