Of the 23 commonly detected GPCRs in Table 2, 19 were detectable in all 16 CCLE triple-negative breast cancer cell lines; four other GPCRs (LPHN2, GPRC5B, EDG3, TBXA2R) were detected in 11–14 of the 16 cell lines. This evidence concerns the gene ADGRL2 and triple-negative breast carcinoma.