Monday, July 25, 2011
Why Cancer Is Going To Be Difficult To Beat
As homemakesgames said in the last QOTD, cancer is very complicated. There are so many different types of cancers. There is not going to be a single cure for all cancers. Cancer is not a single mutation in our cells, it's a whole bunch of possible mutations that leave the cell unable to receive feedback from its environment or properly repair damaged DNA. Cancerous cells grow blood vessels to bring nutrients in from surrounding, healthy tissue, disrupting them. Not only do they quickly invade healthy tissue, they have figured out a way to cheat death. Ignoring all kinds of growth inhibitors from the rest of the body, cancerous cells circumvent limitations on how many times its DNA can be copied. They have figured out ways to deactivate programmed limits in its own lifespan. This process can occur in many ways, which makes finding a common cure near impossible. If there is only one thing all cancers have in common, it is that, without treatment, their host cannot sustain them.