Journal: Cancer Immunology, Immunotherapy : CII
Article Title: TLR8 agonists remodel the tumor immune microenvironment through PF4-dependent T cell recruitment and ancillary mechanisms
doi: 10.1007/s00262-026-04329-8
Figure Lengend Snippet: Dynamics of immune cell subsets in response to agonist stimulation. A Schematic of the experimental workflow. Immune profiling by flow cytometry was performed 48 h after a single intratumoral injection of PRR agonists. B Percentage of CD45 + leukocytes among live cells following intratumoral administration of different agonists: TLR3 agonist poly IC (25 µg/tumor), TLR7 agonist imiquimod hydrochloride (25 µg/tumor), TLR8 agonist TL8-506 (10 µg/tumor), TLR9 agonist CpG ODN 2395 (50 µg/tumor), STING agonist ADU-S100 ammonium salt (25 µg/tumor), NOD1 agonist Tri-DAP (10 µg/tumor), and NOD2 agonist murabutide (5 µg/tumor). C Proportion of cDCs within the CD45 + population. D Percentage of ZsGreen + cells among DCs. E Proportion of macrophages within the CD45 + population. F Percentage of ZsGreen + cells among macrophages. G Proportion of CD8 + T cells within the CD45 + compartment. H Proportion of cCD4 + T cells within the CD45 + compartment. I Proportion of Tregs within the CD45 + compartment, pooled from two independent experiments. J Ratio of cCD4 + T cells to Tregs. (K) Ratio of CD8 + T cells to Tregs. Data represent the mean ± SEM ( n = 8 mice per group). Statistical comparisons were performed using one-way ANOVA. * P < 0.05; ** P < 0.01; *** P < 0.001; **** P < 0.0001
Article Snippet: When tumors reached approximately 200 mm 3 , PRR agonists were administered via intratumoral injection at the following doses: TLR3 agonist poly(I:C) (Sigma-Aldrich, #42,424–50-0; 25 μg/tumor); TLR7 agonist imiquimod hydrochloride (MedChemExpress, #HY-B0180A; 25 μg/tumor); TLR8 agonist TL8-506 (InvivoGen, #tlrl-tl8506; 10 μg/tumor); TLR8 agonist motolimod (MedChemExpress, #HY-13773; 50 μg/tumor); TLR9 agonist CpG ODN 2395 (Class C) (InvivoGen, #tlrl-2395–1; 50 μg/tumor); STING agonist ADU-S100 ammonium salt (MedChemExpress, #HY-12885B; 25 μg/tumor); NOD1 agonist Tri-DAP (InvivoGen, #tlrl-tdap; 10 μg/tumor); and NOD2 agonist murabutide (InvivoGen, #tlrl-mbt; 5 μg/tumor).
Techniques: Flow Cytometry, Injection
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