| Bioactivity | HS-243 is a potent and selective IRAK-4 and IRAK-1 inhibitor, with IC50 values of 20 and 24 nM. HS-243 shows minimal TAK1 (transforming growth factor β-activated kinase 1) inhibition activity, with a IC50 of 0.5 μM. HS-243 shows anti-inflammatory and anticancer activity[1]. | ||||||||||||
| Invitro | HS-243 (0-10 μM, 24 h) inhibits cell survival by 21% for AN3-CA (pancreatic cancer cell), and 13% for SKOV-3 (ovarian cancer cell)[1].HS-243 (10 μM, 24 h) potently reduces the proinflammatory response of RA cells and macrophages, significantly reduces the secretion of 15 cytokines, including IL-8, CD14, GRO-α, MIP-1a, MIP-3a, uPAR, Osteopontin, MMP-9, MCP-1, I-TAC, TIM-3, IP-10, GDF-15, and RANTES[1]. HS-243 shows minimal to no percentage of inhibition against IRAK-4 Y262T or Y262A mutants at 0.3 and 1 μM[1]. Cell Viability Assay[1] Cell Line: | ||||||||||||
| Name | HS-243 | ||||||||||||
| CAS | 848249-10-5 | ||||||||||||
| Formula | C17H16N4O3 | ||||||||||||
| Molar Mass | 324.33 | ||||||||||||
| Appearance | Solid | ||||||||||||
| Transport | Room temperature in continental US; may vary elsewhere. | ||||||||||||
| Storage |
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| Reference | [1]. Scarneo SA, et al. A highly selective inhibitor of interleukin-1 receptor-associated kinases 1/4 (IRAK-1/4) delineates the distinct signaling roles of IRAK-1/4 and the TAK1 kinase. J Biol Chem. 2020 Feb 7;295(6):1565-1574. |