Application of 3'-methoxy benzyl-4-hydroxy-3,5-dimethoxy-benzoate in preparation of drugs for treating acute inflammation
A technology of methoxybenzyl and dimethoxy, applied in the field of inhibiting proteasome compounds, to reduce inflammation, increase survival rate, and aggravate inflammation
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Embodiment 1
[0015] In vitro target enzyme of polypeptide inhibitor: IC50 value of tumor necrosis factor releasing enzyme (both purchased from sigma company).
[0016] The activity of TNF-releasing enzyme was detected by cleaving the fluorescent substrate Mca-Pro-Leu-Ala-Gln-Ala-Val-Dpa-Arg-Ser-Ser-Ser-Arg-NH (excitation wavelength = 320 nm, Emission wavelength = 405 nm). Reactions were performed in 100 μl reactions at 37°C. Add 4 μl of 3'-methoxybenzyl-4-hydroxy-3,5-dimethoxy-benzoate stock solution (1 ng / μl) to the reaction system at the beginning of the reaction for the final concentration of the substrate to 10 μM. The measured IC50 value was 6.09 μmol.
Embodiment 2
[0018] In Vivo Viability of Compound (3'-Methoxybenzyl-4-Hydroxy-3,5-Dimethoxy-benzoate) Examination Using Endotoxic Shock Model
[0019] Before establishing the endotoxic shock model, we first determined that the LD50 of LPS (E. coli 0111: B4, purchased from sigma company) mice was 50 μg per mouse, and we used 100 μg per mouse in the experiment , In this way, the mice in the control group can all die. A positive control experiment was done with Regasepin2. The mice in the control group were injected with 100 μg of LPS, while the mice in the Regasepin2 experimental group were injected with 0.7 mg of the compound 5 minutes after LPS injection. By making a Kaplan-Meier survival curve, it was found that Regasepin2 can effectively protect mice injected with 100 μg and improve the survival rate. After the endotoxin shock model was successfully established in mice, the in vivo activity of the compound was tested using the model. The mice in the control group (12) were injected wi...
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