Journal: iScience

Article Title: MFAP5 + synovial fibroblasts drive LOX upregulation to promote osteoarthritis progression

doi: 10.1016/j.isci.2026.116286

Figure Lengend Snippet: MFAP5 + SFs promoted collagen deposition in synovium (A) Dendrogram showing the hierarchy organization of MEGENA network modules in GSE176308 . The top layer represented the root and largest parent modules, which branched hierarchically into smaller child modules. (B) Density plots displaying c1_9 module scores across SF clusters, with color-coded density values; red indicated higher density, and blue indicated lower density. (C) Network of pathways and genes involved in the c1_9 module, where a two-point line indicated that a gene was part of a specific pathway. (D) Raincloud plot showing c1_9 score in GSE152805 . (E and F) Gene set enrichment analysis showed collagen pathways were upregulated in MFAP5 + SFs in both GSE176308 (E) and GSE152805 (F). (G) Correlation coefficients between the expression of MFAP5 and one ECM pathway score across three datasets. (H) Violin plots of ECM binding (left) and ECM organization (right) scores across SF clusters in GSE176308 . Color-coded by SF clusters. (I) Density plots of ECM binding and ECM organization scores across SF clusters in SCP469 and GSE152805 . (J) Comparison of significant ligand-receptor pairs from SF clusters to T cells in GSE152805 . (K) Immunofluorescence images of MFAP5, CD4, and vimentin colocalization in synovial tissues. Scale bars, 200 or 20 μm. Statistical significance was calculated using two-tailed Wilcoxon rank-sum test (D and H) and Spearman's rank correlation analysis (G). ∗∗∗ p < 0.001.

Article Snippet: Sections were then incubated overnight at 4 °C with primary antibodies, including vimentin (GB11192, Servicebio, China), FBN1 (860327, Zenbio, China), MFAP5 (15727-1-AP, Proteintech, China), and CD4 (GB150062-50, Servicebio, China).

Techniques: Expressing, Binding Assay, Comparison, Immunofluorescence, Two Tailed Test