What is cellular immunotherapy?

Cellular immunotherapy is an emerging treatment for tumors that primarily relies on cellular immune mechanisms. This method is conducted through the following steps: 1. **Cell collection**: Immune cells, such as lymphocytes and macrophages, are collected from the patient's body. 2. **In vitro culture**: Under laboratory conditions, the collected immune cells are cultured in vitro to increase their numbers and enhance their ability to recognize and kill tumor cells. 3. **Reinfusion into the body**: The cultured immune cells are reinfused into the patient's body, enabling them to identify and attack pathogens, cancer cells, and mutated cells within the body. Cellular immunotherapy aims to break immune tolerance, activate, and enhance the body's immune system to achieve the goal of tumor treatment. This therapeutic approach offers advantages such as high specificity, minimal toxic side effects, and rapid effectiveness. It is widely applied in the clinical treatment of various cancers, viral infections, and autoimmune diseases.