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2026-06
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Journal: Cancer Immunology Research
Article Title: Discovery of a Conditionally Activated IL-2 that Promotes Antitumor Immunity and Induces Tumor Regression
doi: 10.1158/2326-6066.CIR-21-0831
Figure Lengend Snippet: WTX-124 treatment increases CD8 + T-cell activation and Treg fragility in B16-F10 Tumors. B16-F10 tumors were implanted and allowed to grow to an average volume of 100–150 mm 3 before mice were randomized into treatment groups. Mice were dosed twice a week with either PBS or with various doses of WTX-124. Some mice also received PD-1 blockade in addition to WTX-124 treatment. A, Tumor volume was measured over time. Data from individual mice (dashed lines) are depicted with the group average presented in bold. B, Tumor volume on day 12. C–I, Tumors from mice treated with either the vehicle or WTX-124 (200 μg/dose) were harvested 24 hours after the second dose. C, RNA from each tumor was isolated and subjected to immune profiling with the NanoString nCounter PanCancer Mouse Immune Profiling panel. Heatmap of transcripts with statistically significant differences in expression between the two treatments. Transcripts were excluded from the heatmap if they had average normalized counts below 50. Each lane represents an individual animal. D–I, TILs were restimulated with PMA/Ionomycin and examined for effector cytokine production and proliferation. D and E, The frequency of tumor-infiltrating tetramer-positive CD8 + T cells producing granzyme B or expressing Ki67. The tetramer used in these experiments was the same tetramer from . F and G, The frequency of tumor-infiltrating NK cells producing granzyme B or expressing Ki67. H and I, The frequency of tumor-infiltrating CD4 + Tregs producing IFNγ or TNF. In plots comparing only two groups, P values are derived from t tests ( * , P < 0.05; ** , P < 0.01; *** , P < 0.001; **** , P < 0.0001). In plots comparing multiple groups, P values are derived from a one-way ANOVA followed by Dunnett multiple comparisons comparing each sample with the vehicle control ( * , P < 0.05; *** , P < 0.001; **** , P < 0.0001).
Article Snippet: RNA samples were shipped to
Techniques: Activation Assay, Isolation, Expressing, Derivative Assay, Control