RAD51AP1 and lung cancer: Unlike the general genome stability function of RAD51AP1, it also presents oncogene-like functions in breast, ovarian, and lung cancers as highly expressed in tumor tissues and correlated with poor prognosis (Sankaranarayanan et al., 2015; Pathania et al., 2016; Chudasama et al., 2018; Wu et al., 2019; Bridges et al., 2020; Bridges et al., 2021).