R-IMPP stimulates uptake of LDL-C in hepatoma cells by increasing LDL-R levels, without altering levels of secreted transferrin. R-IMPP does not decrease PCSK9 transcription or increase PCSK9 degradation, but causes transcript-dependent inhibition of PCSK9 translation. R-IMPP is able to selectively bind to human, but not E. coli, ribosomes
|Cell lines||Huh7 cells|
|Preparation method||Huh7 cells are plated at 150,000 cells per well and transfected with the full-length and truncation mutants. After 24 hr, cells are treated with vehicle, 30 μMR-IMPP, or 30 μM S-IMPP. At 48 hr post-transfection, cells are washed three times with TBS +2 mg/mL BSA and lysed with 100 mL of RIPA buffer per well. Protein lysates are subjected to SDS-PAGE and western blot analysis for PCSK9 (V5) and b-actin.|
|Concentrations||10, 30 μM|
|Incubation time||24 h|
|Body Surface Area (m2)||0.007||0.025||0.15||0.05||0.02||0.5|
|Animal A (mg/kg) = Animal B (mg/kg) multiplied by||Animal B Km|
|Animal A Km|
For example, to modify the dose of resveratrol used for a mouse (22.4 mg/kg) to a dose based on the BSA for a rat, multiply 22.4 mg/kg by the Km factor for a mouse and then divide by the Km factor for a rat. This calculation results in a rat equivalent dose for resveratrol of 11.2 mg/kg.
|Solubility||41 mg/mL in DMSO|
A Small-Molecule Anti-secretagogue of PCSK9 Targets the 80S Ribosome to Inhibit PCSK9 Protein Translation.
Petersen DN, et al. Cell Chem Biol. 2016 Nov 17;23(11):1362-1371. PMID: 27746128.
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