MX1013 是一种有效的、不可逆的二肽caspase抑制剂,具有抗细胞凋亡活性。MX1013 抑制重组人caspase 3,IC50为 30 nM。
生物活性 | MX1013 is a potent, irreversible dipeptidecaspaseinhibitor vith antiapoptotic activity. MX1013 inhibits recombinant humancaspase 3with anIC50 of 30 nM[1]. |
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体外研究 (In Vitro) | MX1013 inhibits caspases 1, 3, 6, 7, 8, and 9, with IC50 values ranging from 5 to 20 nm. MX1013 is selective for caspases, and is a poor inhibitor of noncaspase proteases, such as cathepsin B, calpain I, or Factor Xa (IC50 values >10 μm)[1]. MX1013 inhibits three key markers of apoptosis: the proteolytic maturation of caspase 3, the caspase-mediated cleavage of PARP, and the fragmentation of genomic DNA[1].
Cell Proliferation Assay[1] Cell Line: | Jurkat T-lymphocytes | Concentration: | 0, 0.05, 0.1, 0.25, 0.5 μM | Incubation Time: | Preincubated for 2 h | Result: | Neither caspase 3 processing nor PARP cleavage could be detected at 0.5 μM. At concentrations of 0.05 μM, caspase 3 processing and PARP cleavage were still markedly reduced. |
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体内研究 (In Vivo) | MX1013 is an effective antiapoptotic agent in vivo. MX1013 not only inhibits local tissue apoptosis, but also can protect animals against its lethal effects[1].
Animal Model: | Female ND4 Swiss Webster mice (16.5-21 g)[1] | Dosage: | 0, 0.25, 1, 10 mg/kg (formulated in an aqueous vehicle containing 50 mm Tris-HCl, pH 8.0) | Administration: | Injected i.v. | Result: | The lowest dose of 0.25 mg/kg protected 66% of the mice from the lethal effects of anti-Fas antibody at the 3 h time point, and 1 and 10 mg/kg dose protected 100% of the mice at the 3 h time point. |
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运输条件 | Room temperature in continental US; may vary elsewhere. |
储存方式 | Powder | -20°C | 3 years | In solvent | -80°C | 6 months | | -20°C | 1 month |
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