The predicted TGFB1-Mental Disorders link, which later were published in López-González et al. (2019), supports the theory that dysfunction of the immune system plays an important role in the etiology of mental illnesses, such as schizophrenia and depression (Frydecka et al., 2013; Bialek et al., 2020). This evidence concerns the gene TGFB1 and schizophrenia.