CD8A and neoplasm: However, ERI1 expression did not correlate significantly with ESCA tumor purity, and only correlated weakly with the infiltrating levels of B cells (r = 0.243, P = 10.4e-03), CD8+ T cells (r = 0.179, P = 1.59e-02) and DCs (r = -0.185, P = 1.28e-02).