AGPAT1 and ovarian carcinoma: Although the origin and biological relevance of AGAPT1 mRNA in the saliva samples of breast cancer patients are not clarified, the downregulation of AGPAT1 mRNA was recently verified in another study for the identification of biomarkers in the saliva of ovarian cancer patients [86] and could prove helpful for establishing useful diagnostic and/or prognostic gene expression signatures in non-invasive samples from cancer patients.