Journal: bioRxiv
Article Title: Dosing and Serostatus Shape the Efficacy of Adenovirus, mRNA, and Protein Vaccines
doi: 10.1101/2025.07.16.665159
Figure Lengend Snippet: (A) Experimental outline for gene expression analysis of immune cells (CD45+) from draining lymph nodes. C57BL/6 mice were immunized intramuscularly with each respective vaccine, and at 24 h post-immunization, draining lymph nodes were enriched for CD45+ cells using magnetic beads. ( B ) Venn diagram showing the overlap of significant differentially expressed genes (DEGs) among each vaccine group compared to naive controls. Significance was defined as FDR < 0.05 and absolute log2 fold change > 0.5. ( C ) Bar plot depicting the proportions of annotated cell types in each vaccination group. ( D ) UMAP visualization of single-cell transcriptomes, with cells colored and labeled by cell identity. UMAPs are shown separately for each vaccination group. ( E-G ). Volcano plots displaying DEGs for Ad5 vs. naive, mRNA vs. naive, and protein vs. naive comparisons. Vertical lines indicate log2 fold change of 0.5; horizontal lines indicate FDR of 0.05. Genes upregulated in the vaccine group are shown in red, downregulated in blue, and non-significant genes in grey. ( H ) UMAP plots showing the expression of Ifit3 across each vaccination group and naive mice. ( I–L ) Dot plots of enriched pathways identified by GSEA in B cells ( I ), CD4 T cells ( J ), CD8 T cells ( K ), and dendritic cells ( L ) for each vaccine group compared to naive. The y-axis lists pathway names, dot size represents –log10(adjusted p-value), and color corresponds to the normalized enrichment score (NES). A black ring denotes significant enrichment (FDR < 0.05); a grey ring indicates non-significance.
Article Snippet: At day 1 post-vaccination, lymph nodes from five mice were pooled and MACS-sorted with a CD45 MACS positive selection kit (STEMCELL) and used for single-cell sequencing.
Techniques: Gene Expression, Magnetic Beads, Labeling, Expressing