LTB4R2 and Alzheimer disease: In this set of samples, the differential expression of KDM2A and LTB4R2 only reached statistical significance (Figure 5C,F,I); however, the number of samples we were able to retrieve from the biobank of our institute was very limited (n = 9) compared to the TCGA cohort (n = 572 for AD and n = 550 for SCC), possibly explaining the lack of significance for CSNK1A1 expression in our set of samples.