POU3F2 and bipolar disorder: POU3F2 and PAX6 were found to regulate the transcription of TRIM8 (Ding et al., 2021) as well as the VRK2 (Pearl et al., 2019), other genes associated with schizophrenia and bipolar disorder (Gandal et al., 2018; Li et al., 2018; Ding et al., 2021).