AMCOriginalSeries, “BreakingBad” “never give up control. live life on your own terms.”
Unrestrained cell growth and division that can lead to serious health problems.Phil Mayor, Slideshare.net, “What is Cancer?” Cancer cells are the result of DNA sequence mutations. These errors in cell DNA ruin a cell’s ability to control it’s own division cycle. A cancer cell can freely divide uncountable times.The ability of cancer cells to divide indefinitely is a result of cancer cellsrebuilding their telomeres after each cell division.
Mutations in a cell’s DNA canbe caused by certainviruses, exposure to high levelsof energy and chemicalexposure.
Carcinogens are various substances,High levels of energy such as; energy forms and types of radiation that is directly connected the causeX rays, nuclear of cancer.radiation andrays from the sun cancause cancer mutations. An oncovirus is any virus that causes cancer. The name refers to the cell’s infected RNA or DNA. Sarah Leen, science.nationalgeographic.com, Science Photo Gallery, Cancer
Cancer Cells are specifically different than normal cells in two ways1) The cell loses it’s “contact inhibition” Normally, cells divide until they bump up against other collections of cells. Cancer cells ignore the signal and continue to divide at a very high density. (formation of tumors)2) Cancer cells divide indefinitely A healthy human cell divides until it touches other cells or until the section of DNA found at the tip of a chromosome is to short to divide again. This section of DNA is called a telomere. A cancer cell will rebuild it’s telomeres each time that it divides. Cancer cells can divide forever if not fought with chemical treatment.
Phil Mayor, Slideshare.net, “What is Cancer?”The normal cell tissue is healthy because it isn’t over runwith dense clusters of cells.The Cancerous cell tissue is at a very high density leveldue to the cancer cell’s ignorance to contact inhibition.
Benign tumors are just an abundanceof normal cells that mass together.Typically, many moles on a person’sbody are benign masses of cells. Malignant tumors are the mass of cancer cells that never stopped dividing. Malignant tumors shed off and get into a person’s Circulatory system. This is how cancer spreads and when it does, it is called, Metastasis.
Zephyr/Science Photo Library, science.nationalgeographic.com, Science, Photo Gallery, Cancer This cancer patient is an example of Metastasis. The cancer (orange areas) began growth in the lungs before it spread to the brain. MRI images show the nine tumors. Magnetic resonance imaging. This image shows the two distinctions from a normal cell. 1) Loss of contact inhibition 2) Dividing indefinitely
Surprisingly, death does not occur from some chemical release or weird genetic property. As cancerous tumors grow, it takes up larger and larger amounts of room. Eventually the tumor presses up against important cells and tissues. It is the growth of the tumor that interrupts and stops organs from carrying out normal functions. Organ dysfunction like this can have dangerous results in our body when important tissues are affected. .. could be blocked, restricting our bodies from getting oxygen... could stop detoxification .. could be unable to pumpof toxins that go through our Blood through out body.Body.
Moredun Animal Health Ltd/Science PhotoLibrary, science.nationalgeographic.com, Sciencephoto gallery, CancerPicture of a cancerous tumor insideof a human lung. The tumor iscovered in microscopic hairlikestructures called microvilli, whichallow absorption and secretion.
The rapidly growing cell collection must be surgically removed or stopped. To slow down or stop the growth of a tumor, chemotherapy and radiation are used to interrupt cell division among the cancerous tumors.Terrible side effects are a result to chemotherapy. Not only are the cancerous tumorsslowed down in growth but other systems of the body are effected. For example,red blood cells are produced at a slower rate causing less oxygen to be produced.Patients endure extreme fatigue and shortness or breath.When chemotherapy interferes with the division of bone marrow stem cells, theproduction of platelets and white blood cells are reduced. This increases bruising,bleeding and the chance of infection.Hair follicles are also slowed down by chemotherapy.
Aragon-Ching, J. Zujewski, CNS metastasis “An old problem in anew guise.” “Clinical Cancer Research,” (2007) (13(6):1644-1647) http://clincancerres.aacrjournals.org/content/13/6.tocASCO “American Society of Clinical Oncology.” (2005) (10-11-11)http://www.asco.org/National Health Information Center. “U.S. Department of Healthand Human Services. (10-11-11)National Institute on Aging, National Library of Medicine. “NiHSenior Health.” (5-4-11) Webhttp://nihseniorhealth.gov/category/cancer.htmlRosen, Leo, Gloria. “American Cancer Society.” Web (10-11-11)http://www.cancer.orgTalmadge, Fidler. “AACR Centennial Series: The Biology OfCancer Metastasis: Historical Perspective.” (2010) (sec. 70)(14)(pg: 5649-5669)http://cancerres.aacrjournals.org/content/70/14/5649.full