FOXP3 and neoplasm: We also evaluated the relationship between peripheral blood FoxP3 (demethylated FoxP3-TSDR) and tumor FoxP3 expression, and there was no significant correlation (tumor central Foxp3, pearson’s coefficient -0.35, p = 0.497; tumor peripheral area Foxp3, pearson coefficient -0.41, p = 0.432).