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描述 | Domatinostat (4SC-202 free base) tosylate has been identified as a significant inhibitor of proliferation across both epithelial and mesenchymal urinary carcinoma (UC) cell lines, showcasing IC50 values ranging from 0.15 to 0.51 μM. Domatinostat also induces apoptosis in colorectal cancer (CRC) cells, a process which can be notably mitigated by caspase inhibitors such as z-VAD-CHO and z-DVED-CHO, suggesting its cytotoxic effects are, in part, mediated through caspase activation. Additionally, Domatinostat induces a significant G2-M phase arrest in CRC cells. Research suggests that AKT activation might play a crucial role in resistance to Domatinostat's cytotoxic effects. The cytotoxicity induced by Domatinostat is greatly enhanced under conditions of serum starvation, inhibition of AKT (via perifosine or MK-2206), or AKT1-shRNA knockdown in CRC cells. Conversely, the expression of constitutively active AKT1 (CA-AKT1) can reduce the sensitivity to Domatinostat in HT-29 cells. Remarkably, at low concentrations, Domatinostat can augment the anti-CRC activity of oxaliplatin in vitro. In the context of hepatocellular carcinoma (HCC), Domatinostat exhibits potent cytotoxic and anti-proliferative effects against both established HCC cell lines (such as HepG2, HepB3, SMMC-7721) and patient-derived primary HCC cells. It activates apoptosis signal-regulating kinase 1 (ASK1), which then moves to mitochondria and physically associates with Cyp-D, indicating a pathway through which Domatinostat induces apoptosis in HCC cells. |
实验方案 | |||
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1mg | 5mg | 10mg | |
1 mM 5 mM 10 mM |
2.23mL 0.45mL 0.22mL |
11.17mL 2.23mL 1.12mL |
22.35mL 4.47mL 2.23mL |
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