ARG1 and central nervous system cancer: To further elucidate M2-like TAMs infiltration populations, we then evaluated the score of M2-like TAMs signature, which was constructed with eight M2-like TAMs representative genes including CD163, CD206, CD68, CCL18, VEGFA, Fizz1, Arg1, IL10 in gliomas with different grades in TCGA and CGGA glioma cohort with ssGSEA.