Destroying the recycling centers inside a cancer cell is a more effective way to alert the immune system than traditional chemotherapy.
Most cancer treatments try to kill cells by damaging their DNA or stopping them from dividing. This new nano-adjuvant uses a physical approach to puncture the cell's lysosomes and cause a messy, inflammatory death. This immunogenic death forces the cancer cell to release signals that act like a homing beacon for the immune system. The body then learns to recognize the tumor and continues to fight it long after the treatment ends. This strategy turns the tumor's own debris into a vaccine that prevents the cancer from ever coming back.
Lysosomal Cell Death Elicits Immunogenic Cell Death: A Saponin-Nanoaluminum Adjuvant for Enhanced Cancer Immunotherapy
SSRN · 6717500
Inducing lysosomal membrane permeabilization (LMP) represents a novel therapeutic strategy that bypasses conventional genetic or protein targets and triggers cell death by physically tumor disrupting. Herein, QS-21, an FDA-approved saponin with membrane-disruptive capability was conjugated onto an aluminum-based adjuvant (denoted as QS-NanoAlum) to induce LMP effects and trigger tumor immunogenic cell death (ICD) through a "self-lysis" mechanism. Leveraging its positive surface charge, intratumo