1. Discovery of A-910, a Highly Potent and Orally Bioavailable Dual MerTK/Axl-Selective Tyrosine Kinase Inhibitor.
- Author
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Yu Y, Jang M, Miyashiro J, Clark RF, Zhu GD, Gong J, Dai Y, Frey RR, Penning TD, Kim H, Lee HK, Kim JK, Ryu KM, Park SJ, Yoon T, Li T, Kurnick MD, Kapecki NJ, Li L, Gorman JV, Montgomery DA, Manaves V, Bromberg KD, Doktor SZ, Thakur A, Wang J, Smith HA, Buchanan FG, Ferguson DC, Torrent M, Jakob CG, Qiu W, Upadhyay AK, Martin RL, Lai A, and Michaelides MR
- Abstract
TAM receptor tyrosine kinases have emerged as promising therapeutic targets for cancer treatment due to their roles in both tumor intrinsic survival mechanisms and suppression of antitumor immunity within the tumor microenvironment. Inhibiting MerTK and Axl selectively is believed to hinder cancer cell survival, reverse the protumor myeloid phenotype, and suppress efferocytosis, thereby eliciting an antitumor immune response. In this study, we present the discovery of A-910 , a highly potent and selective dual MerTK/Axl inhibitor, achieved through a structure-based medicinal chemistry campaign. The lead compound exhibits favorable oral bioavailability, exceptional kinome selectivity, and significantly improved in vivo target engagement. These findings support the use of A-910 as an orally bioavailable in vivo tool compound for investigating the immunotherapy potential of dual MerTK/Axl inhibition.
- Published
- 2024
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