PHF19 and plasma cell myeloma: Aberrant expression of PHF19 has been implicated in regulating the pathogenesis and progression of a wide range of cancers, including melanoma (Ghislin et al., 2012), hepatocellular carcinoma (Xu et al., 2015; Cai et al., 2018), glioma (Lu et al., 2018), glioblastoma (Deng et al., 2018), multiple myeloma (Ren et al., 2019).