Journal: bioRxiv
Article Title: Distinct cAMP regulation in scleroderma lung and skin myofibroblasts governs their dedifferentiation via p38α inhibition
doi: 10.1101/2025.02.26.640163
Figure Lengend Snippet: ( A ) qPCR data representing the relative expression of the genes encoding p38α, p38β, p38γ and p38δ in SSc lung and skin MFs. ( B ) Western blot and densitometric analysis of the fibrosis-associated genes Col1A1 and αSMA following SSc lung and skin MF treatment with the isoform-specific p38α inhibitor VX-702 (50µM) for 96 h. ( C ) αSMA stress fibers were identified by immunofluorescence microscopy using an anti-αSMA-FITC-conjugated antibody (using the same protocol in B ). Nuclei were stained with DAPI. Data points represent distinct patient-derived cell lines. Significance for data in A ( n = 8) was determined by 2-tailed unpaired or paired t-test where appropriate and by one-way ANOVA in B (n = 6). * P < 0.05, ** P < 0.01, *** P < 0.001 and **** P < 0.0001.
Article Snippet: The pan-p38 inhibitor SB203580 (20 μM) and p38α inhibitor VX-702 (50 μM) were purchased from Cayman Chemicals (13067) and Selleckchem (HY-10401), respectively.
Techniques: Expressing, Western Blot, Immunofluorescence, Microscopy, Staining, Derivative Assay