Rare T cell receptor identification
Study Status: Completed
Study Purpose: To identify T cell receptors that recognize an individual’s particular cancer. Once these receptors are identified, they can be used to treat the disease.
Background: T cells are part of the immune system. They are a major part of keeping the body healthy. A cancer cell produces proteins that are not usually found in healthy cells. These proteins are cut into pieces and put on the surface of the cancer cell. T cells are able to recognize these pieces through their T cell receptors. T cells then attach to the cancer cell and are able to kill them. So, in order for the immune system to kill the cancer cell, a T cell with the correct T cell receptor needs to come close enough to the cancer cell to find it, attach to it, and kill it. If we knew what T cell receptor is able to attach to the cancer in a patient, then we could use this receptor to kill the cancer. This treatment option has been around for a while now and it can be very effective at fighting cancer. However, one major challenge is finding the correct T cell receptors. The Hirano lab has generated a procedure that is able to find the T cell receptors that can bind to a patients’ cancer.
Study Methods: Knowing a patient’s cancer type and genetic background, their T cells can be rapidly scanned to find receptors that can bind their cancer. Once these receptors are identified, they can be used to fight the cancer.
Key Findings: The Hirano method is able to discover T cell receptors that are difficult to find using traditional methods, since the Hirano method has a much higher sensitivity.
A company (TCRyption) was formed at UHN to further develop a large-scale platform for the technology. TCRyption was acquired by Treadwell Therapeutics. This allows for efficient T cell receptor scanning for large groups of patients.
Health Conditions: Cancer