Journal: medRxiv
Article Title: Multi-Omics Integrative Analysis of the Aspirin-Gut-Brain-Glioma Axis: Transcriptomic, Proteomic, Epigenetic, Mendelian Randomization, and Single-Cell Transcriptomic Evidence Converges on NEO1/Hepcidin Iron Reprogramming and Ferroptosis Vulnerability
doi: 10.64898/2026.06.01.26354602
Figure Lengend Snippet: (A) UMAP visualization of malignant GBM cells colored by inferred cell state (MES = mesenchymal, 76.4%; AC = astrocyte-like; OPC = oligodendrocyte progenitor-like; NPC = neural progenitor-like) based on Neftel 2019 meta-module gene signatures. (B) Dot plot showing the expression of 16 iron metabolism and ferroptosis genes across cell states. Dot size represents the percentage of cells expressing each gene; color intensity represents the mean log-normalized expression. (C) Ferroptosis vulnerability score (15 driver genes − 20 suppressor genes) across cell states. MES exhibited the highest vulnerability (−0.400 vs. AC −0.526, OPC −0.493, NPC −0.492; all P<0.001). Universally negative scores reflect dominant GPX4/SLC7A11 suppressor expression. (D) Single-cell NEO1 vs. HAMP correlation (Spearman ρ = +0.27, P = 0.135). The lack of significant correlation at the transcriptional level is consistent with the protein-level mode of NEO1/BMP/HAMP signaling regulation.
Article Snippet: To validate our bulk transcriptomic findings at single-cell resolution and assess the heterogeneity of iron metabolism gene expression across GBM malignant cell states, we analyzed single-cell RNA-seq data from 28 GBM patients (GSE131928, Neftel et al. [ ]), comprising 15,112 cells profiled by 10X Genomics.
Techniques: Expressing, Single Cell