BTN3A2 and lung cancer: To further verify the prognostic value of BTN3A2 in LUAD, the PrognoScan database was used and the results showed that the low BTN3A2 expression group was linked to good lung cancer prognosis (OS jacob-00182-CANDF HR = −0.72, p = 0.00027; RFS GSE31210 HR = −0.28, p = 0.033) (Figures 3G,H).