Journal: Molecular Therapy Oncology
Article Title: Improved oncolytic and immunostimulatory activity of the spontaneous jin-3 reovirus mutant in preclinical bladder cancer models
doi: 10.1016/j.omton.2026.201128
Figure Lengend Snippet: Comparison of the oncolytic effects of mutant jin-3 versus R124 reovirus in bladder cancer cell lines in vitro (A) Mean viral S4Q copy number (log fold change S4Q mRNA expression vs. mock treated cells) in bladder cancer cell lines exposed to a range of MOI (0.01–0.1–1–10) of either R124 or jin-3 reoviruses after 24 h. In red, the highest infection with virus is shown. Two-way ANOVA followed by Tukey’s post hoc test. n = 3 (2 replicates). UM-UC-3 cells R124 reovirus MOI1 vs. mock p = 0.0184; ∗∗∗ p < .001, $$$ p < .001, asterisks indicate mock versus reovirus infection, and dollar signs indicate R124 versus jin-3. (B) Viral load (% of viable, single cells expressing Sigma-3 protein) in bladder cancer cell lines exposed to MOI10 of either R124 or jin-3 after 72 h mean (SD) ( N = 3). Two-way ANOVA followed by Tukey’s post hoc test. ∗∗∗ p < .001, $$$ p < .001, asterisks indicate mock versus reovirus infection, and dollar signs indicate R124 versus jin-3. (C) Confocal images of viral protein (Sigma-3, green) and DAPI (blue)-stained bladder cancer cells treated with MOI10 of R124 or jin-3 for 72h. Scale bars, 25 μm. (D) Mean percentage of viable cells after exposure to a range of MOI of either R124 or jin-3 for 6 days. n = 3 (6 replicates). p values are depicted (vs. mock; when 2 depicted upper p value is R124 vs. jin-3 ); ∗∗∗ p < .001, $$$ p < .001, asterisks indicate mock versus reovirus infection, and dollar signs indicate R124 versus jin-3. (E) Percentage of single, viable, JAM-A protein expressing cells. Mean (SD), n = 3. MOI = multiplicity of infection.
Article Snippet: Wild-type T3D reovirus strain R124 was plaque-purified from the wild-type reovirus T3D (ATCC) on HER911 cells., Reovirus mutant jin-3 was isolated from JAM-A-deficient U118MG cells after passaging of the wild-type T3D strain R124.
Techniques: Comparison, Mutagenesis, In Vitro, Expressing, Infection, Virus, Staining