Journal: bioRxiv
Article Title: Longitudinal study of liver disease progression in the PEX1-Gly844Asp mouse model of mild Zellweger Spectrum Disorder
doi: 10.1101/2025.05.08.652960
Figure Lengend Snippet: ( A ) Reduced total body weight and increased liver to body weight ratio in PEX1-G844D mutants relative to littermate controls (N=4-6) at all age groups. 1 point represents 1 mouse. ( B ) Hematoxylin and eosin stain (H&E) showed hepatocyte enlargement with prominent nucleoli and ductular reaction (proliferating bile duct with lymphocyte infiltrates, arrows) at 1 month, foamy cell change (2 months), cluster cell-death (6 months), hepatitis (8 months), nodular hyperplasia (dashed line; 9 month), dilated sinusoid with congestion in hepatic tumor (12 months) and distinctive cellular atypia in tumor (15 months) (N=4-6). Top panel: 40x magnification. Bottom panel: 10x magnification. ( C, D ) Immunohistochemistry (IHC) of glutamate synthetase showed diffused positivity in PEX1-G844D mouse liver at age 12 months; glypican-3, a marker of hepatocellular carcinoma (HCC) was present at age 17 months. (E, F ) IHC for the proliferation marker, Ki67, showed increased number of hepatocytes with Ki67-positive nucleus (red arrows) in PEX1-G844D mutants compared to littermate control at age 2 months, 3-4 months, 5-6 months and 7-8 months (N=3-6). Representative images are shown at age 3, 6 and 8 months. Unpaired student t-test. ** P<0.01; *** P<0.001. ( G ) Serum alpha-fetoprotein (AFP) level was measured across age groups by ELISA. Chronic elevation was observed, with a spike at age 17-18 months. Unpaired student t-test. * P<0.05; ** P<0.01; *** P<0.001.
Article Snippet: Serum levels of alpha-fetoprotein (AFP) and insulin were measured by solid phase sandwich ELISA: Mouse AFP Quantikine ELISA Kit (R&D system, MAFP00) and Mouse Ultrasensitive Insulin ELISA kit (ALPCO, #80-INSMSU-E01).
Techniques: H&E Stain, Immunohistochemistry, Marker, Control, Enzyme-linked Immunosorbent Assay