When we learned about mitosis gone awry a few weeks ago, we talked about how cancer cells do not display density-dependent inhibition, nor do they display contact inhibition. In short, cancer cells are not familiar with the concept of personal space, nor do they realize they're hogging the space they're in. A new study reveals that cancer stem cells do not undergo differentiation, which would lead them to become one of a vast array of cells.
This is interesting, because the study found that tumor initiating cells have some things in common with normal stem cells, such as the ability to differentiate. Recall that differentiation occurs due to expression of certain genes in the organism's DNA--some genes are turned on, and some are turned off.
Obviously, this new information provides scientists with information about the signaling pathways that turn a normal cell into a tumor cell, which can help scientists find potential cures for certain types of cancer. This research may also provide more insight into the 'immortality' that cancer cells appear to display.
What other applications do you think that this research could have? Would other applications of this research be beneficial to a greater segment of the population, or would it be limited to patients with only certain types of cancer?
Posted by scienceguru on January 7, 2008
Tags cancer, cell division, discuss


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