CD4 and cancer: In addition, the expression level of LPAR6 has significant correlations with infiltrating levels of CD8+ T cells in 24 types of cancer, CD4+ T cells in 26 types of cancer, neutrophils in 33 types of cancer, macrophages in 20 types of cancer and dendritic cells in 21 types of cancer (Supplementary Table S3 and Figure S3).