Nov
25
Lil Cleveland216 asked:
I know that a similarity would be cells regenerate, and a difference would be cancer cells grow uncontrollably.
Is there anything else?
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I know that a similarity would be cells regenerate, and a difference would be cancer cells grow uncontrollably.
Is there anything else?
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10 Responses to “How are cancer cells similar to normal cells, and how are they different?”
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they are normal cells gone wild
They are usually quick to reproduce, immature, undifferentiated, and they metastasize to other parts of the body.
ik they are more sensitive to radiation than normal cells
can-cer-cels-stu-pid
They grow untill a tumor is formed, some tumors (I can’t remember their name) don’t spread and are usually not fatal and can be treated, however the other type which does spread (again I have forgotten their name) are usually fatal.
well cancer cells are ones that have had a problem in the DNA stored in the cell. its no longer what it once was, so when it splits into two like all cells, the new ones also have the same problem. So you end up with all these cells that don’t do their usual function. The cancer cells not only regenerate faster than regular cells, they use up more energy, more of your body’s resources. This causes your body to weaken from the lack of energy going to the good ones as the cancer takes over.
Well, normal cells found in our bodies are constantly dividing to provide replacement for the ones that are also constantly dying (apoptosis) in our bodies. These are all normal procedures.
Cancerous cells also divide continuously, the difference is that they don’t die (apoptosis) and just continue to grow. Thus, they are abnormal in that they are not programmed to die. This is when the masses of cells form.
Sometimes cancerous cells can invade your lymphatic system or blood system and this is how they travel to different parts of your body. This is known as metastasis. Metastatic cancerous cells are malignant in that they are not self-limiting and can spread throughout the body.
There are 6 hallmarks of a cancer cell:
1 - They are able to produce molecules that promote their own growth
2 - They are resistant to molecules from other cells that would limit their growth
3- They are able to avoid apoptosis (normal cell death)
4 - They are able to replicate endlessly
5- They are able to promote the generation of new blood vessels to supply them with nutrients
6 - They are able to metastasize (migrate) to other regions of the body
The basic idea, as already mentioned is that cancer cells can replicate endlessly and are out of the control of the body.
In most early cancers, the cells themselves tend to look like the tissue from which they originate. Thus, at an early stage, a lung cancer will look a lot like a normal lung cell, except for the fact that it keeps growing. These early cancers are the ones referred to as benign, because they tend to stick around in the tissue they originate from and are usually easily removed.
However, as cancer cells mature, they look less and less like the original tissue cell. In fact, mature cancer cells actually resemble stem cells. If you think about it their are many similarities, both reproduce endlessly and both are immortal. The difference between a stem cell and a mature cancer cell is that the cancer cell cannot be regulated by the body. The mature cancer cell also gains the ability to metastasize at which point it is considered malignant since it can invade other tissues making complete removal difficult.
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