CIK cell immunotherapy for lung cancer The most distinctive feature of lung cancer cells is that they divide infinitely and never stop, once one appears, they will soon divide into countless others and develop extremely fast. The number of immune cells itself is small, and the speed of division is far from being able to keep up with it. When lung cancer cells become a climate, immune cells are usually helpless. At that time, patients usually have to resort to physical or chemical means such as surgery, chemotherapy, radiotherapy, etc. to destroy them. CIK cells (i.e. cytokine-induced killer cells) immunotherapy is to isolate lymphocytes from human peripheral blood and make them become immunologically active CIK anti-tumor cells through strict isolation, screening and induction culture. After reaching a certain number and scale, these CIK anti-tumor cells are re-infused into human body, and these “special soldiers”, which are reinforced by special training, are allowed to fight with lung cancer cells. Lu Kaihua, Department of Oncology, The First Affiliated Hospital of Nanjing Medical University Advantages of CIK cell immunotherapy: High specificity and broad spectrum of tumor killing CIK cells have strong proliferation ability and certain immune characteristics. Like radar, they can not only identify lung cancer cells in the body, but also automatically search for “enemies”, including lung cancer cells that are not sensitive to radiotherapy and chemotherapy, as well as metastatic lung cancer cells. These “enemies” include lung cancer cells that are insensitive to radiotherapy and chemotherapy and metastatic lung cancer cells, etc., which can be killed and destroyed after detection, effectively preventing lung cancer recurrence and metastasis without harming “innocent” normal cells. Improving the efficacy of radiotherapy When CIK cell immunotherapy is used in combination with radiotherapy and chemotherapy, it can reduce the toxic side effects caused by the radiotherapy process, especially reduce the incidence of infection, promote the recovery of patients’ physical strength, and improve the efficacy of radiotherapy. High safety Because it uses the body’s own cells to kill tumor cells, it is very safe and has no toxic side effects. At the same time, it can help the body to activate immunity, rebuild and improve the immune function of the patient’s whole body, and completely remove residual tumor cells and micro metastases in the body. Three periods of CIK cell immunotherapy: When lung cancer is diagnosed and has not metastasized, bioimmunotherapy alone or together with surgery can better and systematically kill lung cancer cells. When metastasis occurs after surgery, bioimmunotherapy combined with radiotherapy and chemotherapy can comprehensively remove residual lung cancer cells, establish immune barrier and prevent metastasis. In the middle and late stage when the disease is too severe to tolerate radiotherapy and chemotherapy, bioimmunotherapy can reduce various pains and ensure patients’ long-term survival with tumor.