Journal: American journal of physiology. Gastrointestinal and liver physiology
Article Title: FAM134B Controls Collagen I Dynamics in Hepatic Stellate Cell-Driven Fibrosis
doi: 10.1152/ajpgi.00170.2025
Figure Lengend Snippet: (a) Cas9 scramble, sgCCPG1, and sgFAM134B I and II cells were collected for immunoblot. Left panel shows quantitative immunoblots, and right panel shows quantifications. N = 3 biological replicates. (b, e) Cas9 scramble, sgCCPG1, and sgFAM134B I and II cells were treated with TGFβ (5 ng/mL) for 24 hours, and mRNA was collected for qRT-PCR. N = 6 biological replicates for (b), and N = 3 biological replicates for (e). (c) Cas9 scramble, sgCCPG1, and sgFAM134B I and II cells were treated with TGFβ (5 ng/mL) for 24 hours and collected for immunoblot to measure intracellular collagen I protein levels. Top panel shows representative immunoblots, and bottom panel shows quantifications. N = 3 biological replicates. (d) Cas9 scramble, sgCCPG1, and sgFAM134B II cells were treated with TGFβ (5 ng/mL) for 24 hours, and intracellular collagen I and LAMPI were stained with immunofluorescence of permeabilized cells. Top panel shows representative images (scale bars = 10μm for left panels and 2.5μm for the insets), and bottom panel shows quantifications. Samples were imaged by confocal microscopy at 63x with at least 10 images per sample, and colocalization was compared with a two-way ANOVA followed by a Tukey post-hoc. N = 5 biological replicates. (f) siControl, siCCPG1, and siFAM134B cells were treated with TGFβ (5 ng/mL) for 24 hours, and mRNA was collected for qRT-PCR. N = 4 biological replicates. (g) siControl, siCCPG1, and siFAM134B cells were treated with TGFβ (5 ng/mL) for 24 hours and collected for immunoblotting. Left panel shows representative immunoblots, and right panel shows quantifications. N = 3 biological replicates. Samples were analyzed with a one-way ANOVA (a) or two-way ANOVA (b-g) followed by a Tukey post-hoc. Graph bars represent sample mean and error bars depict standard deviation; ns = not significant, * = p < 0.05, ** = p < 0.01, and *** = p < 0.001.
Article Snippet: Antibodies used were as follows: Collagen I (Southern Biotech 1310–01), Collagen 5A1 (Cell Signaling Technologies 37304, RRID:AB_3675529), LAMP1 (Cell Signaling Technologies D2D11, RRID:AB_2687579), and Procollagen I (Millipore MAB1912, RRID:AB_94405).
Techniques: Western Blot, Quantitative RT-PCR, Staining, Immunofluorescence, Confocal Microscopy, Standard Deviation