Researchers have found that when cells become cancerous, they become 100 times more likely to genetically mutate than non-cancerous cells. This explains why tumor cells have so many mutations. Good news on the research front. But bad news on the treatment front -- because therapies that target a certain gene may be largely ineffective in controlling cancer."This is very bad news, because it means that cancer cells in a tumor will have mutations that protect them from therapeutics," says lead researcher Dr. Lawrence Loeb, professor of pathology and biochemistry at the University of Washington School of Medicine in Seattle, who presented his findings February 18 at the meeting of the American Association for the Advancement of Science in San Francisco.
Loeb says chemotherapy drugs target specific oncogenes -- genes that affect the malignancy of a cell -- but if cancer cells are mutator cells, then a single tumor may have cells with all sorts of oncogenes. And while chemotherapy may kill some cancerous cells, millions of others will live on.
It's not all bad news, though, says Loeb who believes this research may help doctors determine the stage and malignancy of tumors by testing the number of mutations. It may also help researchers understand what makes a cancer cell a mutator and how to slow the rate of mutation.
"The idea is that if you might normally get exposed to something in the environment at 20 years old that would give you cancer by age 55, then if we cut the mutation rate in half, you might not get cancer until age 90, and you may even die of something else before that," Loeb explained.
Inflammatory breast cancer accounts for only 1 percent of all breast cancers -- yet this disease that mostly affects young women and teenagers can be especially aggressive. And sadly, many of the symptoms -- inflammation, irritation, itching, redness, blotching, and increase in size -- are mistaken for infection. Not until further, more serious symptoms arise does breast cancer become a possible explanation. A breast may become firmer, warmer, and may grow in size more each day. Although distinct lumps are not apparent, the skin may become dimpled and increased tenderness can occur. Large veins may surface, and cancer may spread in sheets or nests instead of from a solid tumor -- making it virtually impossible to detect a lump. While mammograms are usually ineffective for detecting this cancer, certain biopsies and MRI testing can reveal and confirm a diagnosis -- which years ago was much scarier than it is today with 
