HOXB13 and urinary bladder cancer: Hoxa13 and Hoxb13 are, for instance, known to have high expression in urinary bladder cancer (Marra et al., 2013; Hu et al., 2017) Hox antisense intergenic RNA (HOTAIR) has been proposed as a marker in bladder cancer (Martinez-Fernandez et al., 2015; Berrondo et al., 2016).