Journal: Cell Reports Medicine
Article Title: An aerosolized dual-action autotaxin inhibitor-PPARγ agonist for the treatment of pulmonary fibrosis
doi: 10.1016/j.xcrm.2026.102778
Figure Lengend Snippet: EL244 is a potent PPARγ agonist with therapeutic potential In (A–F), EL244 ability to differentiate 3T3-L1 fibroblasts to adipocytes in the presence of insulin was tested. (A) Oil red O staining of lipid droplets indicative of adipocyte differentiation. The cocktail containing insulin (Ins.), dexamethazone (DEX), and 3-isobutyl-1-methylxanthine (IBMX) was used as a positive control. Scale bars, 100 μm. (B) Absorbance of oil red O staining in cells ( n = 5, 5, 5, 5). (C–E) mRNA levels of PPARγ target genes Adiponectin (C), Fabp4 (D), and Cd36 (E) in 3T3-L1 or the differentiated adipocytes. mRNA expression was interrogated with RT-qPCR; values were normalized to the expression of B2m and presented as fold change over control ( n = 3, 5, 5, 5, 5). (F) mRNA levels of PPARγ in 3T3-L1 or the differentiated adipocytes. mRNA expression was interrogated with RT-qPCR; values were normalized to the expression of B2m and presented as fold change over control ( n = 3, 5, 5, 5, 5). In (G–R), C57bl/6 male mice were treated with high-fat diet (HFD) for 10 weeks and three injections of streptozotocin (STZ, 40mg/kg). In the last 2 weeks of the HFD treatment, a group of mice was treated daily with EL244 (50 mg/kg). (G) Weight curves of the different groups of mice during the HFD, STZ, and EL244 administration. (H) Oral glucose tolerance test (oGTT) after oral administration of a 10% glucose solution (1 g/kg). (I) Insulin resistance as assessed by the area under curve (AUC) of oGTT ( n = 5, 8, 5). (J) Glucose levels in the beginning of the oGTT ( n = 5, 8, 5). (K–R) mRNA levels of PPARγ and PPARγ target genes in the adipose tissue (K–N) and liver (O–R) from mice subjected to HFD, STZ, and EL244 treatment. mRNA expression was interrogated with RT-qPCR; values were normalized to the expression of B2m and presented as fold change over control. (K) Glut1 ( n = 5, 7, 4), (L) Fabp4 ( n = 5, 7, 4), (M) Cd36 ( n = 4, 8, 5), and (N) PPARγ ( n = 5, 5, 4) mRNA levels in adipose tissue. (O) Glut1 ( n = 5, 8, 6), (P) Fabp4 ( n = 5, 8, 6), (Q) Cd36 ( n = 5, 7, 6), and (R) PPARγ ( n = 5, 8, 6) mRNA levels in liver. Data in box and whiskers include the median (line), interquartile range (box), and minimum and maximum range (tails). Each dot represents a biological replicate. Following normality testing, statistical significance was assessed with one-way ANOVA and Tukey’s post-hoc test (B–D), (F), (I–L), (N), (O), (P), and (R) or Welch ANOVA and Games-Howell’s post-hoc test (E), (M), and (Q). ∗ p < 0.05, ∗∗ p < 0.01, ∗∗∗ p < 0.001, ∗∗∗∗ p < 0.0001, respectively. See also .
Article Snippet: 3T3-L1 cell line , ATCC , N/A.
Techniques: Staining, Positive Control, Expressing, Quantitative RT-PCR, Control