ARG1 and neoplasm: Garcinia livingstonei T. Anderson (GLT) elevates the expression level of iNOS and IL-12, and reduces the expression levels of IL-6, TNF-α, Arg-1, and IL-1β on TAMs to impede the tumor progression through the inhibition of STAT3, JNK, and ERK signaling pathway (Sui et al., 2020) (Figure 2 and Table 4).