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2 protocols using et1609 42

1

Optimized Cell Transfection and Signaling Pathway Inhibition

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Polyethylenimine (PEI) (764582, Sigma-Aldrich) and jetPRIME (114-15, Polyplus) were used for transfection. Quenched fluorescent reporter RNA was purchased from General Biology. Inhibitors used in this study include the following: p38 inhibitor SB203580 (HY-10256, MCE); JNK inhibitor SP600125 (HY-12041, MCE); MEK1/2 inhibitor U0126 (HY-12031, MCE); RhoA/C inhibitor (S7719, Selleck). ZAK inhibitors 6P and HY180 are gifts from Prof. Xiaoyun Lu, Jinan University. Antibodies used in this study include the following: anti-Cre (Rabbit, 15036T, CST); anti-HA (Rat, 11867423001, Roche); anti-HA (Rabbit, H6908, Sigma-Aldrich); anti-HA (Mouse, self-made); anti-SIK3 (Rabbit, self-made); anti-β-Tubulin (Mouse, HC101, TransGen Biotech); anti-ACTB (Mouse, 60008-1-Ig, Proteintech); anti-GAPDH (Mouse, 60004-1-Ig, Proteintech); anti-NeuN (Rabbit, 26975-1-AP, Proteintech); anti-Tau (Rabbit, 10274-1-AP, Proteintech); anti-MAP2 (Rabbit, 17490-1-AP, Proteintech); anti-ZAK (Rabbit, 28761-1-AP, Proteintech); anti-PKR (Rabbit, 18244-1-AP, Proteintech); anti-p-p38 (Rabbit, 4511, CST); anti-p-JNK (Rabbit, 4370, CST); anti-p-ERK1/2 (Rabbit, ET1609-42, HUABIO); HRP-conjugated Affinipure Goat Anti-Rabbit IgG(H+L) (SA00001-2, Proteintech); HRP-conjugated Recombinant Rabbit Anti-Mouse IgG Kappa Light Chain (SA00001-1, Proteintech).
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2

Western Blot Analysis of Mouse Islet Proteins

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Protein extraction from primary mouse islets or INS-1 β-cells, protein concentration measurement, and Western blotting processes were performed as described before.[20 (link)] Antibodies against α-tubulin (1:3000, M1501), BCL-2 associated X protein (BAX) (1:1000, ET1603-34), B-cell lymphoma 2 (BCL-2) (1:800, ET1603-11), p-Jun N-terminal kinase (JNK) (1:1500, ET1609-42), SOD2 (1:1200, ET1701-54), and GPX1 (1:800, ET1605-38) were purchased from HuaBio. Antibodies against NF-YA (1:1500, sc17753), NF-YB (1:800, sc-376546), and NF-YC (1:1200, sc-390985) were from Santa Cruz Biotechnology (Shanghai, China). Hybridized primary antibodies were detected with horseradish peroxidase (HRP)-labeled secondary antibodies. Protein signals were detected using the enhanced chemiluminescence reagents (Thermo Fisher Scientific, Waltham, MA, USA).
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