We examined the function of integrin in regulating GSC tumour phenotypes associated with expressing a dominant-negative form of EGFR (EgfrDN; Fig. 7a), dERK RNAi (rlRNAi; Fig. 7c), or zfh-1 (Supplementary Fig. 13d) in somatic cells. The gene discussed is EGFR; the disease is neoplasm.