PIEZO2 and chronic cystitis: Piezo2 channels in dorsal root ganglia (DRGs) was knocked down by intrathecal injections of Piezo2 anti-sense oligodeoxynucleotides (ODNs) in CYP-induced cystitis rats, and mechanical stimulation–evoked referred bladder pain was measured in the lower abdomen overlying the bladder using von Frey filaments.