CHRNA7 and neoplasm: Moreover, α7nAChRs are expressed in non-small cell lung cancer cells and participate in tumor growth and epidermal-mesenchymal transition (Chernyavsky et al., 2015; Schaal and Chellappan, 2016; Bordas et al., 2017; Zhang et al., 2017; Mucchietto et al., 2018).