Cancer Is A Stem Cell Issue
Science Daily — There is an urgent reason to study stem cells: stem cells are at the heart of some, if not all, cancers. Mounting evidence implicates a clutch of rogue stem cells brandishing ‘epigenetic’ marks as the main culprits in cancer. Wiping out tumours for good, some biologists believe, depends on uprooting these wayward stem cells.
A team in the Netherlands has uncovered a key protein that could stop these stem cells from becoming malignant. “This is a hot topic in the cancer field,” Maarten van Lohuizen of The Netherlands Cancer Institute, Amsterdam told participants at a EuroSTELLS workshop, held in Montpellier, France, 23-24 January. “To be successful in cancer therapy you need to target these stem cells: they are intrinsically resistant to chemotherapy.”
Polycomb proteins have emerged as key players in cancer pathogenesis. They are powerful epigenetic regulators that normally silence genes without altering the cell’s DNA. Compounds that regulate polycomb could result in novel anticancer drugs that shrink malignant tissue, and prevent cancer recurrence, a common problem with most chemotherapies.
AstraZeneca and the American Cancer Society has announced a strategic collaboration to significantly extend the reach of the Society's innovative Patient Navigator Program" an initiative to assist individual cancer patients in negotiating the health care system. With major support from AstraZeneca, the American Cancer Society will accelerate development of at least 50 new Patient Navigator Program sites over the next five years in communities throughout the United States.
Researchers in Spain conducted a Phase III clinical trial called GEICAM. They wanted to compare different chemotherapy regimes in women diagnosed with metastatic breast cancer. The trial included 252 women who had already been treated with anthracyclines and taxanes and experienced a recurrence.
A new breath test has been reported to detect lung cancer in its early stage. Lung cancer is the leading cause of cancer death in the United States, and doctors believe that early detection could offer sufferers their best chance for early survival.
When cells become cancerous, they also become 100 times more likely to genetically mutate than regular cells, researchers have found. The findings may explain why cells in a tumor have so many genetic mutations, but could also be bad news for cancer treatments that target a particular gene controlling cancer malignancy.
Avastin, one of a new family of drugs that starves tumors of their blood supply, can slow the growth of the most common and deadly form of brain cancer, researchers reported on Monday.
AUSTRALIAN researchers have discovered a new way that cancer can be passed down from parents to children that will allow them to diagnose the disease earlier.