it was reported that IgA heavy-chain expression was examined using immunohistochemistry (IHC), western blot (WB), and enzyme-linked immunosorbent assay (ELISA) in seven human different cancer cell lines, including MCF-7, SW480, MGC, HeLa, HNE2, CNE1-LMP1, and Tet-on-LMP1-HNE2. The gene discussed is CD79A; the disease is cancer.