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How macrophages mediate inflammatory pain via ATP signaling

Macrophages have important roles in the induction and resolution of inflammation, but the intracellular pathways from inflammatory signals to pain response remain unclear. A recent study demonstrates that the P2X4 receptor mediates inflammatory pain by inducing formation of the potent lipid mediator prostaglandin E2.

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Figure 1: The proposed P2X4 pathway to pain.

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Per-Johan Jakobsson is a member of the board and patent holder of NovaSAID AB.

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Jakobsson, PJ. How macrophages mediate inflammatory pain via ATP signaling. Nat Rev Rheumatol 6, 679–681 (2010). https://doi.org/10.1038/nrrheum.2010.175

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