How cancer cells work, and how they spread in our body?

Answer 1

Cancer cells divide at such a rapid pace because they have lost their ability to communicate with the body's hormones and enzymes. The origin of Cancer cells could be mutation because of radiation, genetic, or even viral in nature.

Answer 2

Normal cells divide a certain number of times, then die off. While alive, they perform a specific function.
Cancer cells are mutations of normal cells. They no longer perform their designated function. And they no longer stop dividing after a certain number of divisions. They just keep dividing over and over again. They break away from the organ of origin, spreading to other organs via the bloodstream or the lymphatic system. This is called metatisis.

Answer 3

It depends on what cancer too

Cancer cells acquire the dangerous ability to migrate and establish themselves in distant body sites where metastases can then develop. Through a complex cascade of events, cancer cells loosen their adhesion to neighboring cells and to the extracellular matrix, escape from their original tissue and invade surrounding tissues until they reach a blood or lymphatic vessel. They then cross the wall of the vessel to enter the circulation (which transports them to other organs), exit the circulation again through a vessel's wall, and finally, as they arrive in their new environment, attach and grow into secondary tumors

Answer 4

Cancer = rebel cells they aren't shaped like normal cells and they reproduce themselves and don't stop, and i believe they also prevent the normal reproducing of Helper T-cells which are the cells that aid in your bodies healing process, thats why a people that have cancer tend to take longer to heal.

Answer 5

Interesting question. We' ve all grown up dreading cancer yet no one seems to have the slightest idea of what cancer is.
Ok, I'll take a shot. Here goes.
Imagine a sore has developed, let's say on the palm of your hand. A layer of brand new skin tissue attempts to grow over the now long over due, unhealed wound.
Unsuccessful in healing the sore, a second layer of newly developed skin tissue begins to grow. It, no more successful in healing the wound than the first, instead grows over the first layer.
Attempting to heal the still unhealed wound,
A third layer begins,..
than a fourth, fifth, six, seventh, etc, etc,..you now have one layer on top of another layer, on top of layer.,
You have a hell of a lump and it's still growing.
All trying to heal an unhealed wound.
And the lump? Now it's called a tumor.
A tumor, to keep growing, needs a blood supply to stay healthy. It's in for the long haul. It's going to need to stay healthy if it's going to combat the still unhealed wound.
Tumors, to support it's growth, develope blood vessels. It's on it's own now and nothing is about to stop it..
The lump, the tumor,. You know what your doctor calls it???
He calls it cancer.
And if he can't stop it's growing, using radiation, cutting it, and even if he yells at it but nothing he does can stop it.
It'll keep growing.
Eventually it'll smother your internal organs until it kills you.
Glad you asked?

Answer 6

The details of this are exceedingly complicated, and no where near fully understood (I'm actually working this summer in a research institution that's main purpose is basically to figure out exactly how cancer cells work), but I can try to explain what I know about the basic idea of it...

In a multicellular organism, you've got to have just the right amount of each type of tissue to make an organ that's the right size and shape to do what it's supposed to and fit where it's supposed to go. For that to happen, you need just the right amount of cells. So cells in multicellular organisms need ways to know when to grow and when to just chill out and keep doing what they do as liver cells, brain cells, etc.

Normally, cells know when to grow based in large part on signals from other cells. Cells send out chemical signals that tell other cells how many cells there are, and these signals set of a series of biochemical pathways that ultimately tell other cells that there are enough of that type of tissue, and they shouldn't grow anymore (or that there aren't enough and they should grow). In cancer cells, there are typically mutations that cause them to ignore the stop-growing signals from surrounding cells and from the endocrine system (i.e. hormones).

Another aspect of cells in multicellular organisms is that they tend to stay put. You don't want your liver cells floating over to your heart, or growing on the outside of your skin. So there are proteins outside the cells that hold them in place by binding to the outside surface of the cells in various ways. In metastatic (i.e. spreading) cancers, there are mutations in the genes that encode proteins involved in holding the cell in place, allowing it to float away and take up residence elsewhere.

Another interesting feature of cancer cells is that they tend to un-differenciate. That is, cancer cells that started out as, say, skin cells won't really look like skin cells anymore. Instead they tend to be more or less generic blobs and have lost the functionality of the original differentiated cell. While the cells do have some different features depending on what type of tissue they originally came from, they look more like each other than like the original tissue.

So basically, cancer cells are cells that aren't normal, functional cells, and just ignore all the other cells telling them to stop growing and grow out of control, wherever they feel like growing.

On an organismal level, cancer cells start to be problematic when they form tumors, which are just blobs of cancer cells, and take up space and nutrients intended for healthy, functional cells. Although the cancer cells generally don't secrete anything toxic or anything like that, they have a tendancy to steal blood from healthy cells, and to put physical pressure on surrounding tissue, basically killing off portions of healthy tissue. And because cancer cells multiply far more rapidly than normal cells, they eventually take over, which is clearly not a good thing.

Answer 7

They multiply and attach themselves to healthy cells.

Answer 8

Check the site below for detailed explanations of what you want to know.