Journal: The Journal of Biological Chemistry
Article Title: Inhibition of nucleotide biosynthesis disrupts lipid accumulation and adipogenesis
doi: 10.1016/j.jbc.2023.104635
Figure Lengend Snippet: Inhibition of purine biosynthesis blocks adipogenesis by downregulating the expression of key transcriptional regulators. A , Western blotting analysis of primary preadipocytes differentiated for 8 days after adding 6MP or MIZ at day 0 and then every other day, at day 2 and then every other day, or at day 4 and then every other day. Duplicate samples represent two biological replicates. B , cells were treated as in ( A ), and Oil Red O staining was performed. Statistical significance was determined using one-way ANOVA multiple comparisons test. Error bars indicate mean ± SD, ∗ p ≤ 0.05, ∗∗ p ≤ 0.01, ∗∗∗ p ≤ 0.001, and ∗∗∗∗ p ≤ 0.0001. C , MIZ and 6MP were added at the start of primary SVF differentiation. Cells were differentiated for 1, 2, or 4 days. C/EBPδ, C/EBPβ, PPARγ, C/EBPα, and tubulin were analyzed by Western blotting. Duplicate samples represent two biological replicates. D , 3T3-L1 cells stably expressing pBABE control vector or PPARγ2 were differentiated and treated with 25 μM MIZ or DMSO control for 6 days. Lysates were analyzed by Western blotting as indicated. The data are representative of three independent experiments. 6MP, 6-mercaptopurine; C/EBP, CCAAT/enhancer-binding protein; DMSO, dimethyl sulfoxide; MIZ, mizoribine; PPARγ, peroxisome proliferator–activated receptor γ.
Article Snippet: pBABE puro PPARγ2 plasmid was obtained from Addgene (#8859). shRNAs against IMPDH1 and DHODH were subcloned in the pLKO.1 puro vector (Addgene Plasmid #8453) at EcoRI and AgeI sites.
Techniques: Inhibition, Expressing, Western Blot, Staining, Stable Transfection, Control, Plasmid Preparation, Binding Assay