Reactive Oxygen Species (ROS) Modulator

SKI-II hydrochloride is an orally active dual-target inhibitor of SphK1/2 and DES1, with K_i values of 16 µM and 0.3 µM against SphK1 and DES1, respectively. SKI-II hydrochloride activates the PERK-Nrf2 antioxidant pathway by stabilizing Nrf2, and synergizes with Temozolomide (HY-17364) to induce oxidative/endoplasmic reticulum stress and cancer cell death under hypoxic conditions. SKI-II hydrochloride inhibits SphK activity, promotes ceramide accumulation and apoptosis, and synergizes with Cisplatin (HY-17394) to reverse drug resistance via the ras/MAPK pathway in vivo. SKI-II hydrochloride reduces measles virus replication by inhibiting mTORC1 activity. SKI-II hydrochloride binds to VCP to induce M1 polarization, enhances host tolerance to Staphylococcus aureus infection, and exerts radioprotective effects through Nrf2 activation and accelerated DNA repair. SKI-II hydrochloride can be used in research related to glioblastoma, acute myeloid leukemia, gastric cancer, measles virus infection, Staphylococcus aureus infection, and acute radiation syndrome.

BI-836858 is a fully human anti-CD33 monoclonal antibody. BI-836858 reduces CD33+ cells via antibody-dependent cellular cytotoxicity (ADCC), blocks downstream signaling of S100A9/CD33, decreases the secretion of immunosuppressive cytokines and reactive oxygen species-induced genomic instability, and restores bone marrow hematopoietic function. BI-836858 is applicable to the research of myelodysplastic syndrome (MDS) and AML.