SUCNR1 and neoplasm: Although SUCNR1 has been found to regulate the function of immune cells (Rubic et al., 2008; Littlewood-Evans et al., 2016; Rubić-Schneider et al., 2017; van Diepen et al., 2017; Saraiva et al., 2018; Keiran et al., 2019), it remains to determine whether SUCNR1 is involved in modulating tumor immunity.