Friday, April 27, 2012

Mitosis


        Cancer is a very powerful thing that takes over the lives of many people. While researching breast cancer and how the mitosis treatments are done, I feel as if they are getting further into finding the best cure for it. Even though cancer can come back later on after doing the treatments, people are lucky to be free of it for the first few months or even years. As you can see later on, mitosis is a powerful cell that can change someone’s life in just one mistake done by the cell.
      First off, the definitions of mitosis are“1. Sequential differentiation and segregation of replicated chromosomes in a cell nucleus that precedes complete cell division. 2. The number of chromosomes is retained in both daughter cells” (Mifflin). These daughter cells are made up of five stages in cancer. The five stages are these (in order); Prophase, Prometaphase, Metaphase, Anaphase, and lastly Telophase.
Furthermore, the five stages are semi complex. Prophase is the chromosomes condense. The Prometaphase is when chromosomes attach to splindles (Nuclear envelope breaks down). Metaphase is when the chromosomes align on the metaphase plate (cell's midline). Anaphases are when chromosomes separate are pulled apart into daughter chromosomes. Lastly Telophase is finally when the chromosomes relax then the nucleus re-forms and the cell pinches in two (cytokinesis).  (IUPUI Department of Biology).
All in all, there are various discoveries about cancer cells and treatments, including how they work. But first you need to know that “The cancer cells proliferate to form mass of cancer cells called a tumor. As the tumor grows larger, it begins to release proteins from the cell to attract new blood vessel growth (this is called "angiogenesis"). At point the tumor contains ~ 1 million cells and is about the size of a 'bb'” (IUPUI Department of Biology). So two goals that they use during the treatment is to remove the primary, or original, tumor usually by giving surgery to the cancer patient. Then the second goal is to kill off any cancer cells that might still be in the body (Majure). Basically what I already knew was that they kill off the cells, good and bad, which then leads to the patients’ hair loss, because of the cell killing. Yet I feel as if they could find a way to only kill the specific cells that are causing the cancer in the person. For now, though, it is fine because of the way it has saved lives of loved ones. Also because the good cells with come back soon.
Furthermore, (breast) cancer has a lot of processes that occur during the treatments. More and more discoveries are happening while scientists get more into the mitosis cells. So, as you can see, mitosis is a cell that five stages. As well as the knowledge of the process the treatment is proceeded as.

Bibliography
IUPUI Department of Biology. 14 February 2000. 17 April 2012 <http://www.biology.iupui.edu/biocourses/N100H/ch8mitosis.html>.
Majure, Janet. Brest Cancer. Enslow Publishers, Inc., 2000.
Mifflin, Houghton. "Mitosis." Mifflin, Houghton. Websters's || New College Dictionary. Boston: Margert S. Berube, 2005. 1518.

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