Journal: iScience
Article Title: A transfer learning framework to elucidate the clinical relevance of altered proximal tubule cell states in kidney disease
doi: 10.1016/j.isci.2024.109271
Figure Lengend Snippet: Characterization of altered proximal tubule cells (A) UMAP representation of the PT compartment from AKI and control patients. (B) Relative abundance of PT1 and PT2 clusters in AKI and control patients. (C) Expression of known injury marker genes in PT1 and PT2 clusters. (D and E) Gene-weighted density of HAVCR1 and VCAM1. (F) Enrichment score calculated by gene set enrichment analysis using Reactome pathway database (positive enrichment means an enrichment in PT2 cluster). (G) Pathway activity in PT1 and PT2 clusters (inferred from PROGENy). (H) Collagen, extracellular matrix (ecm) proteoglycan (pg) and glycoprotein (gp) scores in PT1 and PT2 clusters. (I) Potential of heat-diffusion for affinity-based trajectory embedding (PHATE) dimension reduction projecting pathway enrichment estimated by GSVA for each cell type. (J and K) Representative immunostainings of HAVCR1 (J) and VCAM-1 (K) proteins in fibrotic area. ∗∗∗p < 0.001 ∗∗∗∗p < 0.0001.
Article Snippet: Immunochemistry staining were performed as followed: after antigen retrieval with pressurized heating chamber in citrate buffer pH7 or tris-EDTA pH9, 5μm tissue sections were incubated with antibodies mouse monoclonal anti-human HAVCR1 (dilution 1:250, clone 219211, RD Systems) and mouse monoclonal anti-human VCAM1 (dilution 1:25, clone 1.4C3, Invitrogen) for 1h at room temperature.
Techniques: Control, Expressing, Marker, Activity Assay, Diffusion-based Assay