The application discloses application of Hsap_1847317_1SS12GA_R+1 in preparation of a product for detecting tumor
immunotherapy drug resistance, the
immunotherapy is an
immune checkpoint inhibitor treatment, and a
nucleotide sequence of the Hsap_1847317_1SS12GA_R+1 is shown as SEQ ID NO. 1. In the technical scheme provided by the application, through a three-stage
research process of screening-training-
verification, it is found for the first time that Hsap_1847317_1SS12GA_R+1 is closely related to non-
small cell lung cancer immunotherapy drug resistance, and it is confirmed that the Hsap_1847317_1SS12GA_R+1 can be used as an efficient detection marker. Research results show that in blood of patients after immunotherapy
drug resistance, the expression amount of the Hsap_1847317_1SS12GA_R+1 is significantly up-regulated by about 10 times (P<0.0001), and excellent
statistical significance is shown.