Journal: iScience
Article Title: Adipocyte-released adipomes in Chagas cardiomyopathy: Impact on cardiac metabolic and immune regulation
doi: 10.1016/j.isci.2024.109672
Figure Lengend Snippet: T. cruzi infection induces adipocyte apoptosis, releasing adipomes that regulate adipogenic signaling (A) Immunoblot analysis of cleaved Caspase 7 expression in the lysates of 3T3-L1 adipocytes (uninfected, TNFα-treated, and T. cruzi infected) ( n = 3/group). Bar graph values were derived from densitometry analysis and by normalizing target protein expression to β-Actin. (B) Fold change expression of CASP3 , RIPK3, and MLKL mRNA transcripts (normalized to HPRT ) in cultured human adipocytes (uninfected, TNFα-treated and T. cruzi infected) ( n = 3). (C and D) Adipome size distribution and absolute concentration as determined by Spectradyne nCS1 with a C-900 microfluidic cartridge. Both mouse and human adipomes were derived from cultured 3T3-L1 and human adipocyte-conditioned media, respectively. Inset: A (blue) = uninfected, B (green) = TNFα-treated, C (red) = T. cruzi infected. (E) PCR analysis of adipogenic ( Adipoq, Fabp4 , and Pparg ), apoptotic ( Chop ) and extracellular vesicle ( Tsg101 and Cd13 ) marker genes in 3T3-L1-derived adipomes. Lane 1, 2, and 3 represent 3T3-L1-derived adipomes from three independent cultures. Product size: Adipoq , 192bp; Fabp4 , 133bp; Pparg , 132bp; Chop , 118bp; Tsg101 , 103bp; and Cd13 , 121bp. (F and G) Fold change expression of Adipoq mRNA transcripts (normalized to Hprt ) in RAW macrophages (F) and human fibroblasts (G) treated with 3T3-L1- and human adipocyte-derived adipomes, respectively, at 1:1 and 1:50 cell-to-adipome ratio for 48 h ( n = 3). All treatment groups (Treated - A, - B and - C) were compared to untreated groups. The # symbol indicates comparison between Treated - B and - C. Treated - A = adipomes from uninfected adipocytes; Treated - B = adipomes from TNFα-treated adipocytes; and Treated - C = adipomes from T. cruzi -infected adipocytes. Data are represented as mean ± SEM. (∗/# p < 0.05, ∗∗ p ≤ 0.01, ∗∗∗/### p ≤ 0.001 and ∗∗∗∗ p ≤ 0.0001).
Article Snippet: 3T3-L1 Differentiation Medium , ZenBio , Cat#DM-2-L1.
Techniques: Infection, Western Blot, Expressing, Derivative Assay, Cell Culture, Concentration Assay, Marker, Comparison