SIK1 and major depressive disorder: In particular, SIK1 and SIK2 were found to be associated with neuropsychiatric disorders, such as epilepsy and depression, and inhibition of SIKs was shown to be an effective measure to treat these neuropsychiatric disorders (Hansen et al., 2015; Pröschel et al., 2017; Liu et al., 2020).