How does cell immunotherapy work?

Cellular immunotherapy is a treatment approach that utilizes a patient's own immune cells to combat diseases. Its mechanism of action mainly involves the following steps: 1. **Cell collection**: Immune cells, such as T cells and dendritic cells (DCs), are collected from the patient's body. 2. **In vitro culture and activation**: Under laboratory conditions, the collected immune cells are cultured to increase their quantity and enhance their targeted killing function. 3. **Reinfusion into the body**: The cultured immune cells are then reinfused into the patient's body to enhance the immune response against specific diseases (e.g., cancer, autoimmune diseases). Cellular immunotherapy has shown particular effectiveness in treating cancers such as melanoma, renal cell carcinoma, and non-small cell lung cancer, by activating the immune system to recognize and destroy tumor cells.