GRI918013 (compound 1) is a selective and competitive autotaxin (ATX/NPP2) inhibitor with anti-invasive and anti-metastatic activity. GRI918013 competitively binds to ATX, blocking lipid substrates such as lysophosphatidylcholine (LPC) from entering the ATX active site, thereby inhibiting ATX-mediated hydrolysis of LPC to lysophosphatidic acid (LPA), and consequently inhibiting ATX-LPA axis-related tumor cell invasion and metastasis. GRI918013 inhibits ATX-mediated hydrolysis of the LPL substrate FS-3 (IC50=31.42 nM, Ki=12.98 nM). GRI918013 can be used in research on cancer invasion and metastasis, such as melanoma, and can also serve as a tool compound for ATX-LPA axis-related diseases such as fibrotic diseases, neuropathic pain, and cholestatic pruritus.
