PDLIM7 and cancer: This experimentally infected cancer organoid line exhibited mRNA expression of the virus maintenance protein EBNA1 together with expression of the latent membrane proteins LMP1 and 2a. However, the cells did not express the viral EBNA2, 3a, 3b or 3c mRNA, or indeed significant levels of mRNA of any viral lytic proteins, including BZLF1 (Fig 4G).