MGA and lung adenocarcinoma: However, most striking are the high frequency of genetic alterations sustained by the MAX dimerizing repressor, MGA (pronounced mega), across a wide range of cancers including 8% of lung adenocarcinomas (Cancer Genome Atlas Research Network, 2014; De Paoli et al., 2013; Cancer Genome Atlas Network et al., 2018; Sun et al., 2017).