We further analysed the correlation between PKNOX1 and different types of immune cells and found that PKNOX1 was positively correlated with naive B cells, resting NK cells, neutrophils, etc., and negatively correlated with memory B cells, CD8+ T cells, activated NK cells, etc. These findings further indicate that PKNOX1 may be related to tumor immunosuppression. This evidence concerns the gene PKNOX1 and neoplasm.