The Causes Of Development Of Cancer

Cancer is a term used for diseases in which irregular cells divide without any control and have the capability to penetrate and infect normal body tissue through the blood and lymph system. Cancer is the second leading cause of mortality in the United States, exceeded barely by heart disease. According to the CDC Cancer Statistics and Data, there were more than 1.45 million people diagnosed with various kind of cancer between 1999 and 2007 and out of those more than 562,000 people died due to cancer (cdc.gov, 2012). Currently there are more than 200 different types of cancer that have been discovered. Cancer could be

This illustrates how children develop cancer from different types of carcinogenic and genes, this will be used in the introduction of my essay.

Cancer is a disease caused by an uncontrolled division of abnormal cells. The DNA sequence in cells can be changed as a result of copying errors during replication. If these changes whatever their cause are left uncorrected, both growing and non-growing somatic cells might gain many mutations that they could no longer function. The relevance of DNA damage and repair to the generation of cancer was obvious when it was recognized that everything that causes cancer also cause a change in the DNA sequence. Tumor suppressor genes are protective genes and normally they limit cell growth by monitoring the speed of cell division, repair mismatched DNA and control when a cell dies. When a tumor suppressor gene is mutated cells grow

Cancer starts when cells in a body start to grow out of control. Cells in almost any part of the body can become cancer and can spread to other areas of the body. Cancer is challenging in both children and adults and chemotherapy, how the cancer formed in the body, and getting diagnosed are some of the difficult things.

A malignant neoplasm is the medical terminology for Cancer, there are many types of cancers, however, they all are comprised of unregulated cells that show growth or a change. These cells that are cancerous, grow at a hasty rate and will take over other parts of the body, whether being another organ or tissue surrounding the compromised body part. This can also involve the lymph nodes, as well as travel through the bloodstream. There are many influences that contribute to the chance of developing cancers, some of these factors include tobacco use, being overweight and not physically active, exposures to chemicals, and poor nutrition and dietary selections, ones with mutagens in foods, continued or excessive consumption of alcohol, eating foods which are high in fats, and red meat just to name of few. Other types of cancer may be factored by family history, known as a genetic risk, as well as certain viruses that

By definition, a cancer is a disease that is characterized by “controlled growth and spread of abnormal cells,” (Laini, online). According to Laino, cancer forms when there is a growth of abnormal cells. The abnormal cells also known as the cancer cells grow and forms a tumor in which will began to attack nearby body tissues and organs. Depending upon the various types of cancer, the cancer cells attacks different tissues and organs. As the tumor spreads, some

Cancer is a disease caused by an uncontrolled division of abnormal cells. In a cancerous cell cycle, the cell ignores the signals that tell them to stop, and it just keeps dividing. Normal cells stop dividing when your body do not need anything else, but cancer cells just continue to go through cell cycle to make more copies. Also, cancer cells do not need anything to stimulated their growth, and it can spread to other parts of the body. The most common causes of cancer are tobacco, alcohol, overweight, obesity, dietary factors, physical inactivity, chronic infections, radiation, sun and UV exposure. The most common types of cancer are lung (158,080 deaths per year), liver (27,170 deaths per year), stomach (10,730 deaths per year),colorectal

Cancer is a topic that has been discussed thoroughly due to the burden that it has on the affected. It has also been researched early on. According to Dr. George Demetri, director at the Dana-Farber Cancer Institute, cancer violently spreads and attacks organs in the body, which leads to health complications (PBS 1). The world’s understanding of cancer has evolved, but there are still questions that no one has the answer to. Aktipis notes that cancer cells are able to spread to other organs and withstand treatment (Aktipis 2). In other words,the effectiveness of treatment can not be guaranteed due to the the fast pace of spreading. The study of oncology, another term for cancer, started in the eighteenth century and has grown

After reading this chapter, I learned about cancer such as the different types of cancer that exist. People consider cancer as a terminal illness but each type of cancer has its own risks, treatments and diagnostics. While I was reading this chapter, I realized that cancer cells are known as abnormal cells that can divide and may invade other tissues. I discovered the risk factors for cancer, some cancers occur without identified reasons and are more difficult to avoid other cancers with known risk factors are produced in the absence of the risk factor. After reading this chapter, I recognized that the cancer is known as the second leading cause of death in the United States, cancer is not a disease,

Cancer has been an undeniably terrible disease and with no known way to prevent cancer it has taken the lives of many and has no intentions to cease. Cancer, defined by The Gale Encyclopedia of Alternative Medicine, is “Not a single disease but a group of about 100 diseases characterized by the uncontrolled growth of abnormal cells, many of which form masses (tumors), and the ability of those cells to spread by way of the circulatory and lymphatic systems from the original site to distant parts of the body, invade other tissues, and form new tumors” (245). Cancer can affect any part of the body and hence which part it affects is used as an adjective for cancer, e.g., breast and lung cancer is cancer of the breast and lungs, respectively. For each area of the body where a tumor grows, can be more serious than another. This is because the tumor may pressure an organ or rest on a blood vessel that which will inhibit regular bodily functions.

The cause of cancer is when the DNA of that cell is mutated, but instead of that cell dying or repairing itself, it continues in its cell cycle which includes producing more cells with the

Cancer begins when cells in a part of the body start to grow out of control. There are many kinds of cancer, but they all start because of out of control growth of abnormal cells. Like stated before there are so many different types of cancer that

Just the mention of the word cancer brings a great deal of fear and concern to one’s heart. Caner is one of the leading causes of death in many areas around the world. Even with the prevalence of cancer, the amounts of money and research which have been dedicated to learning about cancer, in its various forms, cancer still is one of the least known diseases as it relates to the existence of a cure or widely accepted and proven choice of treatment. Through all the research and work put forth into understanding cancer, though still elusive, some basic concert about cancer has been generally accepted through research and cases studies. Generally, we understand today that cancer has factors outside of one's genetic makeup which impacts the disease

One gene that is prominent in the regulation and development of cells is the Tumor Suppressor Gene. The function of the Tumor Suppressor Gene is to inhibit cell growth when it is deemed necessary in the body. When this gene is mutated is result in the overgrowth of cells because the body can not inform the proper cells to stop growing which can lead to cancer. Cells begin to take up space and oxygen without regard to the other cells around them. The gene “p53” is a common mutation of tumor suppressor genes and is said to be a cause and the development of cancers such as breast cancer. The problem with this mutation is that at the G1 checkpoint of interphase the mutated cell moves directly from G1 to S phase and produces two daughter cells with the mutated p53 gene. The Tumor Suppressor gene “apc” is also mutated in a majority of colorectal cancers. Researchers found that two protein inactivating mutations at apc result in sporadic tumors on the colerectum. Another gene that aids in cell reproduction is the Proto-Oncogene. The proto-oncogene stimulates cell growth. When this gene is mutated is results in the overgrowth of cells because the body is stimulating the cells to continue to divide and produce uncontrollably which can cause cancer because again cancer is defined as the uncontrollable division of cells. The oncogene version of the ras family has been proven to be present in a variety of cancers. The ras family has three major genes including H-ras, K-ras and N-ras. When ras genes are mutated they grow uncontrollably and evade death signals. The gene “k-ras” has played an early role in the development of pancreatic cancer. The last prominent gene that aid in cell cycle is DNA Repair Genes. DNA Repair Genes correct mistakes in DNA, mistakes which result in certain parts of the DNA producing the incorrect protein and function. When this gene is mutated the gene is

Cancer affects millions of people throughout the Unites States and throughout the world. Cancer is a disease where cells grow and divide uncontrollably along with developing malignant tumors that spread, causing the body to essentially break down from within. Because cancer generally resides in the cells, genetics and age both play a large role in the probability for contracting cancer. Once one is diagnosed with a form of the disease, there are many different tests and procedures that are performed. An individual’s risk in developing the disease may be a list of things such as genetics, age, as well as the way one is living their day to day life. Cancer affects a person by way of their outlook on life, their overall health, and their family and social life.