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Summary: Dogs can be trained to detect drugs and bombs, so why not cancer? Initial results show to be promising.
Cancer Vaccines so why not cancer? Initial results show to be promising.
Cancer vaccines are intended either to treat existing cancer or to prevent the development of cancer.
Cancer treatment vaccines are designed to strengthen the body's natural defenses against a cancer that has already developed.
These vaccines may:
National Cancer Insitute
There are several types of treatment vaccines under study, based on a number of different strategies.
Every type, however, works under the premise of using the body’s immune system to fight the cancer, which might entail making the cancer appear foreign – and more visible – to the immune system while at the same time, boosting the system’s response.
Researchers hope that when a vaccine containing cancer-specific antigens is injected into a patient, these antigens will stimulate the immune system to attack cancer cells without harming normal cells.
More than 15 vaccines currently are in trials for a range of diseases, including lymphoma, melanoma, breast, lung, prostate and colorectal cancers, with mostly mixed results to date.
Some of the more widely publicized vaccines include:
Latest Directions in Research so why not cancer? Initial results show to be promising.
In 2005, an uncontrolled trial of Provenge, an experimental cancer vaccine made by Seattle-based Dendreon, showed that men with advanced prostate cancer lived longer, though it did little to stop disease progression.