ADNP and schizophrenia: Furthermore, the VIP receptor, VPAC2, controlling ADNP expression (Zusev and Gozes, 2004), has been linked to schizophrenia and autism spectrum disorders (Vacic et al., 2011; Ago et al., 2018) and VIP regulates ADNP expression in vivo (Giladi et al., 2007).