Exploring the Anticancer Potential of the Multistrain Probiotic Formulation <i>OxxySlab</i> in Bladder Cancer Cell Lines.
- 2025-10-26
- Antioxidants (Basel, Switzerland) 14(11)
- Valeria Ciummo
- Alessia Ciafarone
- Serena Altamura
- Francesca Lombardi
- Marcella Reale
- Maria Grazia Cifone
- Benedetta Cinque
- Paola Palumbo
- PubMed: 41300439
- DOI: 10.3390/antiox14111282
Bladder cancer (BC), particularly its muscle-invasive subtype (MIBC), remains a clinical challenge due to high recurrence and limited therapeutic options. Emerging evidence suggests that probiotics may offer selective anticancer effects while preserving healthy tissue. In this study, we evaluated the antitumor potential of OxxySlab, a multistrain probiotic formulation, in two BC cell lines (T24 and 5637) and a non-tumorigenic urothelial cell line (SV-HUC1). OxxySlab lysate dose-dependently inhibited BC cell proliferation, clonogenicity, and migration, while sparing normal cells. Mechanistically, the treatment suppressed epithelial-mesenchymal transition (EMT), induced senescence, and disrupted redox homeostasis in malignant cells. These effects were associated with the induction of oxidative stress and impaired antioxidant defenses. Co-treatment with vitamin C attenuated ROS accumulation and senescence, implicating oxidative stress as a key mediator. Notably, SV-HUC1 cells retained viability and phenotype, confirming the formulation's selectivity. Overall, these findings support OxxySlab as a promising adjunctive strategy in BC therapy, capable of reducing tumor aggressiveness through redox-mediated senescence and EMT inhibition without harming normal urothelial cells.
Research Insights
| Supplement | Health Outcome | Effect Type | Effect Size |
|---|---|---|---|
| Lactobacillus rhamnosus lysate powder | Induced Cancer Cell Senescence | Beneficial | Moderate |
| Lactobacillus rhamnosus lysate powder | Reduced Bladder Cancer Cell Proliferation | Beneficial | Moderate |
| Lactobacillus rhamnosus lysate powder | Reduced Cancer Cell Proliferation | Beneficial | Moderate |
| Lactobacillus rhamnosus lysate powder | Reduced Epithelial-Mesenchymal Transition | Beneficial | Moderate |
| Lactobacillus rhamnosus lysate powder | Selective Sparing of Normal Urothelial Cells | Beneficial | Small |