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. 2021 Feb 21;22(4):2142. doi: 10.3390/ijms22042142

Figure 2.

Figure 2

Hot vs. Cold tumor microenvironment. The profile of immune cells within the tumor microenvironment can switch the balance between a hot or “immune-sensitive” tumor and cold or “immune-resistant” tumor. Nutrient metabolisms and deficiencies, hypoxia, acidity, and different secreted inflammatory markers lead to modulation of immune-metabolism and reprogramming of immune cells towards pro- or anti-inflammatory phenotypes.