In addition, Mina Kalantari-Dehaghi revealed the expression of genes encoding the neuronal nAChR subunits in MCF-10A and MCF-7 cells, such as α3, α5, α7, α9, α10, β2 nAChR subunits, which can comprise the (α3/α6)β2 ± α5 and α9 ± α10 ACh-gated ion channels and lead to its involvement in the development of cancer [34]. The gene discussed is IGKV6D-21; the disease is cancer.