CD4 and uterine corpus endometrial carcinoma: The same study also reported a positive correlation between ACE-2 expression and level of immune infiltration by B cells (R2 = 0.166; p < 0.010), CD4+ T cells (R2 = 0.154; p < 0.010), neutrophils (R2 = 0.223; p < 0.001) and dendritic cells (R2 = 0.271; p < 0.001) in uterine corpus endometrial carcinoma.