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What Is Prostate Cancer?Prostate cancer develops in a man's prostate, the walnut-sized gland just below the bladder that produces some of the fluid in semen. The result is a tumor that is made up by billions of copies of the original cancerous cells, so this is the reason why scientists refer to cancer cells as being immortal.
Prostate cancer is a disease in which malignant (cancer) cells form in the tissues of the prostate. This entry was posted in Health Photos and tagged cancer photos, Prostate Cancer Cells Photo, prostate tissue, prostate tissue photo on April 7, 2008 by admin. Outline the stages in the cell cycle, including interphase (G1, S, G2), mitosis and cytokinesis. State that growth, embryonic development, tissue repair and asexual reproduction involve mitosis. Between each stage are checkpoints - the cell checks that it is ready to go to the next stage. The rate of cell division is approximately the same - about 24 hours for a eukaryotic cell. State that tumours (cancers) are the result of uncontrolled cell division and that these can occur in any organ or tissue.
The mutations can be caused by environmental factors, like nicotine in cigarettes, or the mutations can be passed on from parents to offspring.
Doctors perform surgery to cut out the cancer cells, but surgery is not always possible because of the location or size of the tumor or because of the number of tumors due to metastasis. Treatments like chemotherapy and radiation therapy kill cells that are dividing rapidly, including cancer cells and healthy body cells. Describe the events that occur in the four phases of mitosis (prophase, metaphase, anaphase and telophase). The resulting cells from cytokinesis each have identical DNA in their nuclei due to replication and mitosis.
Tip: To turn text into a link, highlight the text, then click on a page or file from the list above. Dedicating to providing comprehensive tools for cancer research and drug development, OriGene now offers the whole cell lysates of NCI-60 human tumor cell lines covering multiple cancer types.
A new University of Michigan study found that feeding rats a "nisin milkshake" killed 70-80 percent of head and neck tumor cells after nine weeks and extended survival, said Dr.
Kapila has studied nisin in cancerous tumors and as an antimicrobial to combat diseases of the mouth. Kapila's group has published positive results with less potent nisin, but the highly purified nisin ZP used in the present study nearly doubled its effectiveness.
While promising, the results are small and in mice only, so it's too early to say if nisin will act the same way in humans, Kapila said. The study, "Biomedical applications of nisin," is scheduled to appear in the Journal of Antimicrobial Chemotherapy.
It is intended for general informational purposes only and does not address individual circumstances. With a few clicks, students can find a wide diversity of these diagrams and will also find many things about how cancer evolves. Unlike normal cells, cancer cells stay immature, so they do not specialize and can become even less mature over time.


Consequently, a high grade cancer looks like an abnormal cell, being less developed than a normal cell, while a low grade cancer looks like a normal cell.
Image courtesy: Yvonne KapilaSeveral products available to consumers also contain nisin—creams and pharmaceuticals to fight infection and mastitis, and a sanitizer in lactating cows. It is not a substitute for professional medical advice, diagnosis or treatment and should not be relied on to make decisions about your health.
There are many things that are still unknown about these cancer cells, but through a cell diagram, people and future doctors will start to understand what is happening when such a disease attacks and which are our body’s reactions. Never ignore professional medical advice in seeking treatment because of something you have read on the WebMD Site. As the Internet is at hand, with a few clicks, they will find a wide variety of cancer cells and will find out a lot of new things about how cells develop and about how such a disease evolves. Enlarged Prostate or Prostate Cancer?The prostate can grow larger as men age, sometimes pressing on the bladder or urethra and causing symptoms similar to prostate cancer. Normal body cells can reproduce themselves exactly, become specialized, stop reproducing at the right time, stick together in the right place and also they self destruct if they are damaged.
Related to cancers cells, these are different in several ways: they do not die if they move to another part of the body, do not obey signals from other cells, do not stick together, stay immature and also do not stop reproducing. Cancerous cells do not stop reproducing even after they have doubled 50 or 60 times, so each cancerous cell will go on and on doubling. This inflammation or infection may also cause a fever and in many cases is treated with medication.
Risk Factors You Can't ControlGrowing older is the greatest risk factor for prostate cancer, particularly after age 50. After 70, studies suggest that most men have some form of prostate cancer, though there may be no outward symptoms.
Family history increases a man's risk: having a father or brother with prostate cancer doubles the risk.
African-Americans are at high risk and have the highest rate of prostate cancer in the world. Risk Factors You Can ControlDiet seems to play a role in the development of prostate cancer, which is much more common in countries where meat and high-fat dairy are mainstays.
Researchers are still studying whether alcohol use, STDs, or prostatitis play a role in the development of prostate cancer. Can Prostate Cancer Be Found Early?Screening tests are available to find prostate cancer early, but government guidelines don't call for routine testing in men at any age. The tests may find cancers that are so slow-growing that medical treatments would offer no benefit. And the treatments themselves can have serious side effects.
An elevated level may indicate a higher chance that you have cancer, but you can have a high level and still be cancer-free.
Prostate Cancer BiopsyIf a physical exam or PSA test suggests a problem, your doctor may recommend a biopsy. A needle is inserted either through the rectum wall or the skin between the rectum and scrotum. A biopsy is the best way to detect cancer and predict whether it is slow-growing or aggressive. Biopsy and Gleason ScoreA pathologist looks for cell abnormalities and "grades" the tissue sample from 1 to 5.


Prostate Cancer ImagingSome men may need additional tests to see if the cancer has spread beyond the prostate. A radionuclide bone scan traces an injection of low-level radioactive material to help detect cancer that has spread to the bone.In the MRI scan shown here, the tumor is the green, kidney-shaped mass in the center, next to the prostate gland (in pink).
Prostate Cancer Survival RatesThe good news about prostate cancer is that it usually grows slowly.
Overall, the 5-year relative survival rate is 100% for men with disease confined to the prostate or nearby tissues, and many men live much longer. However, more aggressive treatment is usually recommended for younger men or those with more aggressive disease.
Treatment: Radiation TherapyExternal beam radiation to kill cancer cells can be used as a first treatment or after prostate cancer surgery. In brachytherapy, tiny radioactive pellets about the size of a grain of rice are inserted into the prostate. Treatment: SurgeryRemoving the prostate, or radical prostatectomy, is used to eliminate the cancer when it is confined to the prostate. Treatment: Hormone TherapyHormone therapy may shrink or slow the growth of cancer, but unless it is used with another therapy it will not eliminate the cancer. Drugs or hormones block or stop the production of testosterone and other male hormones, called androgens. Because the chemotherapy kills other fast-growing cells in the body, you may have hair loss and mouth sores. Because the freezing damages nerves, as many as 80% of men become impotent after cryosurgery. Treatment: Prostate Cancer VaccineThis vaccine is designed to treat, not prevent, prostate cancer by spurring your body's immune system to attack prostate cancer cells. Immune cells are removed from your blood, activated to fight cancer, and infused back into the blood. Hope for Advanced CancerYour doctor will continue to monitor your PSA levels and may perform other tests after treatment for prostate cancer. If it recurs or spreads to other parts of the body, additional treatment may be recommended.
One study found that prostate cancer survivors who exercised regularly had a lower risk of dying, for example. Coping With Erectile DysfunctionErectile dysfunction (ED) is a common side effect of prostate cancer treatments.
Food for HealthA cancer-conscious diet may be the best choice for survivors who want to bolster their health and those hoping to lower their risk. Supplements: Buyer BewareBe wary of supplements that are marketed to prevent prostate cancer.
A 10-year study showed an increase in the risk of cancer for men who took folic acid supplements.



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