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, a type of immune cell, are present with receptors on their surface, called T-cell receptors, or TCRs. 1  Typically these TCRs bind to antigens to mount an immune response. In an attempt to use T cells for cancer therapy, T cells are collected from a patientâs own blood.