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. Author manuscript; available in PMC: 2018 Jun 21.
Published in final edited form as: Immunol Lett. 2016 May 17;176:1–7. doi: 10.1016/j.imlet.2016.05.011

Fig. 3.

Fig. 3

The Tumor-PGE2-Macrophage Cross-Talk. Tumor cells produce PGE2 that is sometimes necessary for tumor autonomous cell growth, and at the same time suppresses macrophage activation required for anti-tumor function. Interruption of this cross talk by indomethacin, restores the tumoricidal macrophage function that contributes to limit tumor growth.