Briefly, mice were injected intraperitoneally with 5 μg of ISRIB (stock solution: 5 mg/ml in DMSO, dissolved in PBS up to the weight-dependent injection volume of 30 to 50 μl) per gram of body weight or the corresponding amount of PBS-dissolved solvent (DMSO) on a daily basis for the indicated time periods. One day after the last injection, the animals were euthanized, and collected tissues were snap-frozen in liquid nitrogen. Subsequently, protein lysates of the collected tissues were prepared and processed by SDS-PAGE and Western blot.
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