Chemotherapy slows growth

How cancer cells grow and spread

These two cells then also multiplied and divided, so that the two cells became four cells. Those four cells also doubled and divided into eight cells, and so on.

Cells specialize to perform certain tasks. Some cells join together to form a finger, for example. Others become skin cells. Cells age and die after a certain period of time (“programmed cell death”, apoptosis), and cell division ensures that new cells are created to take their place.

Normally, based on the information contained in their genetic material, cells “know” which other cells to attach and attach to - and they also know when to stop dividing and die. Each cell type has a specific function and has a specific set of information or instructions. For example, cells know how to form the correct number of fingers on a hand, and that the fingers should only grow on the hands.

Every finger is covered with skin, and everyone has a fingernail. When you cut your finger, the skin cells begin to multiply and new skin is created to close the wound. If you lose a fingernail, the cells can grow a new nail. However, they cannot grow an additional finger: the rules by which cells multiply are clearly established, and healthy cells adhere to them.