MCM2 and cancer: Many cancers showed a positive correlation between MCM2 expression levels and malignant progression of cancers in accordance with the inherent function of MCM2 in cell proliferation (Wu et al. 2018; Wu and Xi 2021; Kato et al. 2003; Mehdi et al. 2016; Liu et al. 2017; Cobanoglu et al. 2010; Giaginis et al. 2009).