PTGDR and cancer: However, it is to be noted that in Figure 4b,e, the p-values for both THAP9 and THAP9-AS1 are not less than 0.05, rather the value is 0.2 for THAP9 and 0.5 for THAP9-AS1, which implies that the alterations may not reflect a significant impact on the poor overall survival and prognosis in cancer.