Non-doctor health professionals that may be a part of the orthopedics team include: 1  Athletic trainers. 2  Counselors. 3  Nurse practitioners. 4  Physical therapists. 5  Physician assistants. 6  Psychologists. 7  Social workers. 8  Vocational workers.
The main response of the immune system to tumors is to destroy the abnormal cells using killer T cells, sometimes with the assistance of helper T cells. Tumor antigens are presented on MHC class I molecules in a similar way to viral antigens. This allows killer T cells to recognize the tumor cell as abnormal.
T cells, which are one type of white blood cell in the immune system, somehow become sensitized to proteins in the CNS. When T cells become activated, they enter the CNS through blood vessels and produce damaging inflammation.