
Originally Posted by
mjmacky
I hope this doesn't burst your bubble or anything, but you have quite inaccurately described cancer. Type the following to have me elaborate, "up up down down left right left right B A select start"
The immune response
Any substance that raises an alarm in the body, causing the immune system to react to and attack it is called an antigen. This immune response can lead to destruction of both the antigens and anything they are attached to, such as germs or cancer cells.
Germs such as viruses, bacteria, and parasites have substances on their outer surfaces, such as certain proteins, that are not normally found in the human body. The immune system sees these foreign substances as antigens. Cancer cells are also different from normal cells in the body. They often have some unusual substances on their outer surfaces that can act as antigens.
But the immune system is much better at recognizing and attacking germs than it is cancer cells. Germs are very different from normal human cells and are seen as truly foreign. But cancer cells and normal cells can be very much alike, and any differences are less clear cut. Because of this the immune system may not always recognize cancer cells as foreign.
Cancer cells are less like soldiers of an invading army and more like traitors within the ranks of the human cell population. This may be why cancers are often able to grow despite the presence of a healthy, working immune system.
http://www.cancer.org/Treatment/Trea.../immunotherapy
I emphasize the word "traitor" here.
He wants to destroy the United States, but he is a U.S. citizen living in the U.S.
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