Experimental data indicate that lymphodepletion prior to adoptive transfer of tumor specific T-lymphocytes plays a key role in enhancing treatment efficacy by eliminating regulatory T-cells and competing elements of the immune system. Newly emerging animal data suggest that more profound lymphoablative conditioning with autologous hematopoetic stem-cell rescue might further enhance treatment results. The authors review the recent advances in adoptive immunotherapy of solid tumors and discuss the rationale for lymphodepleting conditioning, and also address the safety issues of translating experimental animal results of total lymphoid ablation into clinical practice.
- Pawel Muranski
- Andrea Boni
- Nicholas P Restifo
