Cell Division - Binary Fission, Mitosis, Meiosis & Cancer
Cancer is basically a disease of uncontrolled cell division. Its development and progression are usually linked to a series of changes in the activity of cell cycle. Aug 29, Their results explain how liver cells can regenerate after injury and may help us understand how cancer arises and how cancer cells evolve to. Apr 18, Cancers are caused by the mutations in the genes that regulate cell growth and division. All cancers have one thing in common: The control.
Humans have around 25, genes in total. Your genes carry all the information that makes you, you.
Cell Cycle in Cancer
They tell your body to have blonde hair, or brown skin, or green eyes for example. And they tell your cells what sort of cell to be, how to behave, when to grow and reproduce, and when to die.
Some genes control how much each cell grows and divides. How faulty genes lead to cancer Our genes pick up mistakes that occur when cells divide. These mistakes or faults are called mutations.
Mutations can happen throughout our lives, during natural processes in our cells. Or they can happen because of other factors such as: Usually, cells can repair faults in their genes.Mitosis - The Cell Cycle & Cancer
Or the immune system may recognise them as abnormal and kill them. This helps to protect us from cancer. Sometimes mutations in important genes cause a cell to no longer understand instructions. It doesn't repair itself properly, and it doesn't die when it should. This can lead to cancer.
The Relationship between mutation, cell cycle, and uncontrol by Kyle Lopes on Prezi
There are 4 main types of genes involved in cell division. So it shows you how important p53 is. It's more important than chocolate. P53 will bind DNA directly to produce proteins that block the progression of the cell cycle. One of those proteins include p P21 will function to inhibit CDK.
RB is another protein that is associated with the function of P53, and these proteins are considered tumor suppressor genes, so RB is a protein that is produced from a tumor suppressor gene, just like p53, so I'll write that down here.
These proteins are considered tumor suppressor genes They're made from tumor suppressor genes I should rather say.
These proteins are made from tumor suppressor genes, which are important to have because if they are defected, or if they have a mutation in them that makes them have loss of function, so that's an important term, repeats defected or if they have a loss of function, what ends up happening is that you tend to get cancer.
Cancer, which I think you and I can both agree is not a good thing to have.
Loss of cell cycle control in cancer
So, it is very important to have tumor suppressor genes. RB got its name because a defect in RB would lead to a tumor of the eye, known as retino-that's where you got the R- retinoblastoma, which is why these two proteins are considered tumor suppressor genes. P21 is very unusual in that it doesn't actually lead to cancer when it's defected.