Journal: Hepatology (Baltimore, Md.)
Article Title: MIF-mediated crosstalk between THRSP + hepatocytes and CD74 + lipid-associated macrophages in hepatic periportal zone drives MASH
doi: 10.1097/HEP.0000000000001429
Figure Lengend Snippet: AAV8- Thrsp -OE aggravated MASH via PA accumulation and MIF-mediated CD74 + LAMs recruitment in the PP zone. (A, B) Thrsp OE was confirmed by WB (A) and qPCR (B) (n=3/group, mice). (C) Representative livers, (D) liver weight to body weight ratios (n=7/group, mice), (E) insulin levels and HOMA-IR (n=5–6/group, mice), (F) representative H&E, ORO and sirius red staining of the liver sections, (G) liver TG and TC contents (n=7–8/group, mice), (H) serum ALT and AST levels (n=7–8/group, mice), (I–K) relative mRNA levels of lipogenetic and uptake genes (I), proinflammatory genes (J), and profibrotic gene (K) in livers of NC and Thrsp -OE mice (n=3/group, mice). (L) The volcano map of hepatic FFA content in the NC and Thrsp -OE mice (n=3/group, mice). (M) The content of palmitic acid in the NC and Thrsp -OE mice (n=3–4/group, mice). (N) The serum MIF levels in the normal CD and custom WD fed NC and Thrsp -OE mice. (O) Our results of snRNA-seq showed expression levels of LAMs and Cd74 + LAMs in the livers of NC and Thrsp -OE mice (n=3/group, mice). (P) Representative mIHC images and responding quantification in the NC and Thrsp -OE mice (more than 6 fields of 3 replicates for each group). Scale bar, 50 μm. (Q, R) WB was used to confirm Thrsp overexpression (Q) or knockdown (R) in the AML12 cells treated with/without PA. (S, T) The MIF concentration in the culture supernatant of AML12 cells and RAW264.7 cells, which were treated with culture supernatant from anterior AML12 cells with/without PA treatment. N=3/group. Data were presented as the mean±SEM. p Values were calculated by unpaired t test (2 groups), 1-way ANOVA followed by Tukey multiple comparison test (≥3 groups). * p <0.05, ** p <0.01, and *** p <0.001. SDS, PP marker gene. PA, palmitic acid (PA, C16:0), 0.5 mM. Abbreviations: CD, chowdiet; FFA, free fatty acids; LAMs, lipid-associated macrophages; MASH, metabolic dysfunction–associated steatohepatitis; MIF, macrophage migration inhibitory factor; mIHC, multiplex immunohistochemistry; NC, negative control; ORO, oil red O; PP, periportal; qPCR, quantitative PCR; TC, total cholesterol; TG, triglycerides; Thrsp-OE, Thrsp-mediated overexpression; WB, western blot; WD, western diet.
Article Snippet: Subsequently, they were stained using the ORO stain kit by the manufacturer’s protocols (Sangon Biotech)., The primers for Thrsp overexpression plasmid construction and siRNA target sequences for Thrsp knockdown were listed in Supplemental Tables S4, http://links.lww.com/HEP/J840 , and S6, http://links.lww.com/HEP/J840 .
Techniques: Staining, Expressing, Over Expression, Knockdown, Concentration Assay, Comparison, Marker, Migration, Multiplex Assay, Immunohistochemistry, Negative Control, Real-time Polymerase Chain Reaction, Western Blot