For detection of PDE, loading control -actin, as well as phosphorylated S6 ribosomal protein (2F9) (pS6P on S235/S236) and total S6 ribosomal protein (54D2) (tS6P), membranes were blocked with 5% milk in PBS-T for 1 h at room temperature, followed by washing, incubation with the primary antibody, anti-PDE (Invitrogen, PA5-22008, RRID: AB_11154288, 1:500), or anti- -actin (Abcam, ab8227, RRID:AB_2305186, 1: 5000), or anti-pS6P (Cell Signalling Technology, #4856, RRID: AB_2181037, 1:1000), or anti-tS6P (Cell Signalling Technology, #2317, RRID: AB_2238583, 1:500) overnight at 4 C and subsequently with horseradish peroxidase (HRP)-conjugated secondary antibodies (Invitrogen, #62-6520, RRID: AB_88369 for anti-mouse, 1:5000
In addition, coronavirus can induce ferroptosis via ACLS4
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This sublingual method allows the peptide to absorb directly through the mucosa of the mouth, bypassing the harsh environment of the stomach and potentially entering the bloodstream more efficiently