Leukemia is a cancer of the blood or bone marrow. Bone marrow produces blood cells. Leukemia can happen when there is a problem with the production of blood cells. It usually affects the leukocytes, or white blood cells.

It is most likely to affect people over the age of 55 years, but it is also the most common cancer in those aged under 15 years.

In the United States, 62,130 people are expected to receive a diagnosis of leukemia in 2017, and around 24,500 deaths will likely be due to this disease.

Acute leukemia develops quickly and worsens rapidly, but chronic leukemia gets worse over time.

• Fast facts on leukemia
• Causes
• Treatment
• Early signs
• Types
• Symptoms

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Scientists have engineered a new kind of antibody that attaches itself to cancer cells before summoning and activating killer T cells from the immune system to destroy them.

The immune system has many ways to protect the body against cells that grow out of control.

However, there are times when the rogue cells "overwhelm or evade" these natural defenses and give rise to cancer.

A new approach in cancer treatment, known as immunotherapy, is developing therapies that can give the immune system a helping hand.
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Colorectal cancer is the fourth most commonly diagnosed type of cancer in the United States. Though various treatments are available for it, certain tumor cells are therapy-resistant. Now, research suggests that an antifungal drug may be effective against these persistent cells.

The drug itraconazole is typically used in the treatment of fungal infections.

These can include certain types of vaginal yeast (vulvovaginal candidiasis) and fungal infections on the hands and feet (Tinea pedis and Tinea manuum).

But researchers from the Cancer Research UK Cambridge Institute have suggested a brand new use for this substance — namely, as a treatment that is able to eliminate dormant tumor cells in colorectal cancer.
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According to a landmark study, a large percentage of individuals with the most common form of early breast cancer could safely skip chemotherapy. The findings could impact thousands of people each year.

While new therapies such as immunotherapies are becoming increasingly crucial in treating cancer, chemotherapy is still a mainstay.

In short, chemotherapy uses drugs to cure or control cancer throughout the body.

As opposed to surgery or radiation therapy — which concentrates on the tumor and the area surrounding it — chemotherapy will affect the whole body.

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​Many of the symptoms of colorectal cancer can also be caused by something that isn’t cancer, such as infection, hemorrhoids, irritable bowel syndrome, or inflammatory bowel disease.

In most cases, people who have these symptoms do not have cancer. Still, if you have any of these problems, it is a sign that you should go to the doctor so the cause can be found and treated, if needed:

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When you think of cancer treatments, chemotherapy and radiation probably come to mind. That may change soon.

A lot has happened in recent years to transform how the disease is, and will be, treated. As a result, folks with cancer and their doctors have more options to pick from, with more on the way.

Immunotherapy

One thing that makes cancer tough to fight is that its cells can dodge your immune system. Your body either doesn’t see them as threats, or it simply can’t work hard enough to fight them.

But new immunotherapy drugs “mark” these cells so that they’re easier to find. These medicines can also make your body's defenses stronger so they can attack tumors.

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August 30, 2017 -- The FDA has for the first time approved a treatment that uses a patient’s own genetically modified cells to attack a type of leukemia, opening the door to what the agency calls "a new frontier" in medicine.

The approval Wednesday allows a process known as CAR T-cell therapy to be used in children or young adults fighting an often fatal recurrence of the most common childhood cancer -- B-cell acute lymphoblastic leukemia.

And it clears the way for a new approach to fighting cancer by harnessing the body’s immune system -- a long-sought goal of medical researchers.

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A breast cancer is a malignant tumor that starts from cells of the breast. A malignant tumor is a group of cancer cells that may grow into (invade) surrounding tissues or spread (metastasize) to distant areas of the body. Cells in nearly any part of the body can become cancer, and can spread to other areas of the body. To learn more about how cancers start and spread, see What Is Cancer?

Breast cancer occurs mainly in women, but men can get it, too. Many people do not realize that men have breast tissue and that they can develop breast cancer.
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