Generating Tumour-Specific Dendritic Cells for Cancer Therapy

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Therapies using the immune system are showing promise for cancer treatment, particularly for melanoma, but complete durable responses are few and improvements are needed. We believe that such immunotherapies, in their current form, fail to sufficiently mimic a natural immune reaction to disease, and therefore fall short of effectively controling cancer. In particular, an alarm (danger signal) is not produced within tumour as it would be when the body is challenged by infectious agents. Such danger signals are critical for the immune system to respond effectively and for white blood cells of the immune system to find their way to the disease organism and eliminate it. The strongest danger signals are produced by a type of white blood cell known as a dendritic cell (DC). These cells detect infectious agents and produce biochemical alarm molecules that alert the entire immune system to the danger resulting in powerful action against the disease. However, tumours are really just a part of our own body and no danger signal is produced. It is our aim to use genetic modification to make DC see tumours as a threat and produce danger signals. These gene-modified DC either alone, or in combination with other immunotherapies, may lead to destruction of tumours.