P2RY2 and neoplasm: This corroborated P2Y2 mRNA expression as being localized to the epithelial tumor cell compartment and not stroma, normal epithelium, or endocrine tissues (n=3, representative images of 2 different patients shown in Figure 2A and Figure 2—figure supplement 1A), matching our findings from larger publicly available cohorts, including P2Y2 IHC data from 264 patients in the Renji cohort (Hu et al., 2019).