USF1 and neoplasm: This factor and its family member USF1 have been well characterized for their role in cell cycle regulation and tumor suppression, with both pro- and antiproliferative roles reported across cell types (Qyang et al. 1999; Pawar et al. 2004; Allen et al. 2005; Chen et al. 2006; Qi et al. 2006; Qi et al. 2014; Hu et al. 2020).