About three-quarters of breast cancers, the most common cancer in women in the U.S., are estrogen hormone dependent. Patients with this type of breast cancer are initially treated with drugs that block estrogen, such as Tamoxifen. However, one-third to half of these patients eventually become resistant to this treatment.

Researchers in Australia have found that breast stem cells and their "daughters" have a longer life than previously believed. This newly discovered longer lifespan suggests that these cells could carry damage or genetic defects earlier in life that eventually lead to cancer decades later.

Researchers at Cardiff University are developing a novel compound known to reverse the spread of malignant breast cancer cells.The vast majority of deaths from cancer result from its progressive spread to vital organs, known as metastasis. In breast cancer up to 12,000 patients a year develop this form of the disease, often several years after initial diagnosis of a breast lump.

A team of scientists, led by principal investigator David D. Schlaepfer, PhD, a professor in the Department of Reproductive Medicine at the University of California, San Diego School of Medicine, has found that a protein involved in promoting tumor growth and survival is also activated in surrounding blood vessels, enabling cancer cells to spread into the bloodstream.

Dana-Farber Cancer Institute scientists have developed a mathematical model to predict how a patient's tumor is likely to behave and which of several possible treatments is most likely to be effective.

Cancer isn't a singular disease, even when talking about one tumor. A tumor consists of a varied mix of cells whose complicated arrangement changes all the time, especially and most vexingly as doctors and patients do their best to fight it.

A new study by University of Kentucky researchers shows that women who never or rarely screen for breast cancer are also unlikely to receive screening for cervical cancer. The study also identified four key barriers independently associated with the lack of these cancer screenings in Appalachian women.Published in Women & Health, the study focused on six rural counties in Appalachian Kentucky.

Folic acid is a well-known supplement to many women, particularly those who are or plan to be pregnant. But a new study suggests that taking large amounts of folate - a B vitamin - and its synthetic form, folic acid, might actually increase the risk of developing breast cancer.

A team of researchers from the Cleveland Clinic and Case Western Reserve School of Medicine have identified critical complex mechanisms involved in the metastasis of deadly "triple negative" breast cancers (TNBC). These tumors are extremely difficult to treat, frequently return after remission, and are the most aggressive form of breast cancer in women.

A team of researchers from the Cleveland Clinic and Case Western Reserve School of Medicine have identified critical complex mechanisms involved in the metastasis of deadly "triple negative" breast cancers (TNBC). These tumors are extremely difficult to treat, frequently return after remission, and are the most aggressive form of breast cancer in women.