There are an approximately 18.1 million new cancer cases all around the world, and cancer remains the second-major reason of death in the United States, where more than 1.7 million people are diagnosed with cancer each year. Cancer is many times discussed as if it’s one thing, however while unrestrained growth is the common denominator, cancer can expand in a variety of different ways, due to a variety of different factors. It can be categorized into hundreds of various diseases based on the cells in which it occurs. And when each patient’s genetic background is taken into consideration, no two cases are alike.
To save more lives of people from cancer, so, it will be important to mention this complexity. Through basic study into cancer biology or immunology, one can enhance their understanding of how cancer builds up and the way it interacts with the immune system. In this way, it could be able to discover new, more effective ways to cure cancer. Various Anti-Cancer Drugs are available for cancer treatment.
WHEN DOES CANCER Happen?
Cancer begins when cells obtain the ability to develop uncontrollably and ultimately invade and harm the body’s normal tissues. Cancer development occurs in multiple stages, from precancerous changes to malignant tumors. Though, not all cancers form tumors, and each cancer can develop at different rates. Many a times cancer cells spread from their original site to various places in the body via the bloodstream or lymphatic system—a process known as metastasis.
WHERE DOES CANCER Happen?
Cancer’s Point of Origin
Cancer can affect several different parts of the body, from the skin, blood vessels, bone, and muscle, to the kidneys, lungs, and many other organs. Cancer can also have an effect on the immune system, which plays a major role during both the development as well as the progression of cancer.
Genetic Causes of Cancers
Genes are segments of DNA situated on chromosomes, and may mutate after certain time to become cancerous. These mutations can result from a variety of causes, comprising of diet and lifestyle choices as well as exposure to several environmental factors. In all, only 5 to 10 percent of all cancers are genetically inherited, however these are the cancers that tend to happen earlier in life.
A kind of such inheritable genetic disorder that is connected with increased cancer risk is Lynch syndrome that prevents cells’ ability to repair their DNA when damage happen. This can result to cancers of the colon and uterus at an early age. Another such kind of genetic factor is the BRCA family of genes, various forms of which have been connected to breast and ovarian cancer.
Presently, scientists and clinicians are using as well as developing new tests to look for biomarkers, that can assist to determine risks and appropriate treatment options depending on an individual patient’s genetic profile.
Behavioral Causes of Cancer
There are several behavioral factors that can result to genetic mutations and, as a result, lead to the growth of cancer.
Diet (red, processed meats)
Tanning (excessive exposure to ultraviolet light)
Unsafe sex (leading to viral infection)
Inflammatory conditions, like ulcerative colitis or obesity
An instance of a behavioral risk factor is smoking, that can result to lung cancer, or excessive exposure to the sun’s ultraviolet (UV) rays, that can cause skin cancer.
Even though there are number of elements at play in the development of cancer, the treatments at our disposal are constantly improving and adapting as new research provides insight into various risk factors.