Summary
Research published in Nature Communications (2024) used 3D Petri Dish® tumor spheroids to discover that senescent cancer-associated fibroblasts (CAFs) suppress T cell activation in pancreatic cancer. Eliminating these cells with venetoclax significantly improves immunotherapy response.
🧬 Oncology
Senescent Cancer-Associated Fibroblasts Restrict T Cell Activation in Pancreatic Cancer
Nature Communications 2020
Cite as: Cite: Assouline et al. Nature Communications (2024). doi.org/10.1038/s41467-024-50441-7
Research Overview
Pancreatic ductal adenocarcinoma (PDAC) remains one of the most challenging cancers to treat. This study reveals that senescent cancer-associated fibroblasts (CAFs) create an immunosuppressive microenvironment that prevents T cells from attacking tumors.
Key Discoveries
- Senescent CAFs accumulate in PDAC tumors and correlate with poor prognosis
- These cells suppress T cell infiltration and activation through secreted factors
- Venetoclax selectively eliminates senescent CAFs without affecting normal fibroblasts
- Combination of venetoclax + immunotherapy significantly improves tumor response
3D Petri Dish® Application
Enabled tumor spheroid growth to study tumor-fibroblast-immune cell interactions in 3D
- Tumor-Fibroblast Co-Culture: Spheroids allowed cancer cells and CAFs to interact in 3D
- T Cell Infiltration Studies: 3D models enabled realistic assessment of T cell penetration
- Drug Screening: Venetoclax efficacy was validated in 3D models before animal studies