Figure 9. RFC4 and GMPS expression correlates with tumor-infiltrating immune cells and immune escape in esophageal carcinoma. (A) RFC4 expression was positively correlated with the tumor purity (r = 0.287, p < 0.05) but negatively correlated with Dendritic cells (r = −0.193, p < 0.05). (B) GMPS expression was positively correlated with the tumor purity (r = 0.217, p < 0.05) but negatively correlated with CD4+ T cells (r = −0.185, p < 0.05) and neutrophils (r =−0.172, p < 0.05). (C) A high level of RFC4 accompanied by a high expression of CD4+ T cells (p = 0.0112), CD 8+ T cells (p = 0.0164), B cells (p = 0.00199), dendritic cells (p = 0.0357) and monocytes (p = 0.0349) indicated a poor prognosis. When RFC4 was expressed at low levels, a high expression of B cells (p = 0.0201) was associated with a better prognosis. (D) A high level of GMPS accompanied by a high expression of CD 8+ T cells (p = 0.00804), B cells (p = 0.0384), dendritic cells (p = 0.00685) and monocytes (p = 0.00746) indicated a poor prognosis. When GMPS was expressed at low levels, a high expression of CD 8+ T cells (p = 0.0442) and dendritic cells (p = 0.0164) was associated with a better prognosis. p < 0.05 was considered significant.