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Cancer cell being attacked by the immune system!!
Apoptosis. If a normal cell leaves accidentally breaks loose from its territory then he will find him self in a new foreign territory. It would then be sent a process signal from a cell in this new territory that would force it to commit suicide. Cell suicide is called apoptosis. Apoptosis is regulated by specific communication pathways. Cancer cells do not commit suicide. They either ignore the signals from the other cells around them or the pathways regulating apoptosis are dysfunctional. In either situation, the lack of death signals allow cancer cells to grow in any environment.
Cancer Cells
by satchel aviram, robert duffy, issie iodice and eva olsson!
Breaking loose For cancer cells to invade other territories, they must break loose from the tumor mass, then travel through the tissue or organ until they reach a blood vessel, then they must penetrate the vessel wall, and then, after being carried in the circulating blood, exit the vessel in another part of the body. Once this process has been done the cancer cells can begin forming a tumor in this new territory. In order to make this tumor in the new territory they must activate angiogenesis, the growth of blood vessels into the tumor. This enables them to recieve oxygen and nutrients. These processes may seem unlikely but cancer cells are capable to complete all of these events, and when they do they are free and able to spread through the body.
Cancer cells relate to the ten Characteristics of Life because... Metabolsim: Lysosomes. Lysosomes relate to metabolism because they digest materials and one of the main chemacal reaction in a cell is digestion. Respiration: Mitochondria. Mitocondria relates to respiration becuase the mitochondria provides the cell with energy and respiration is burning food for fuel. Locomotion: Flagellum. The flagellum is a whip like structure for movement and locomotion is movement. Synthesis: Ribizomes. Ribosomes relate to synthesis because the ribosomes synthasize proteins. Transport: Golgi body. The golgi body helps transport the molecules to diffferent parts of the body. Reproduction: Mitosis. The mitosis is when the nucleus devides in nuclei containing the same number of chromosomes. Nutrition: Mitochondria, cell membrane. The mitochondria provides the cell with energy so it is able to move. The cell membrane allows food to enter. Growth: Cancer cells do not mature like normal cells. Excretion: Cell Membrane. The cell membrane is the orgenelle that desides what stays in and what goes out. Regulation: Nucleas. The nucleas is the brain of the cell and the brain is what regulates the body.
The biggest difference between cancer cells and normal cells is that cancer cells can live forever. Normal cells die after about 50 generations. The real danger with cancer cells are when they break away from the tumor to colonize in other parts of the body. Cancer cells limit their growth because of the availibility of oxygen and nutrients. Cancer cells grow on top of each other creating a large clump, which cuts off the oxygen and the source of food to the cells in the middle of the clump. These cells in the middle are forced to stop dividing and may even die from lack of nutrients and oxygen.
