Scientists report that tumor cells display a dramatic reduction of cancer-causing genes when a newly discovered method is used to activate the expression of protective microRNAs in the cancer cell genome. The research, published in the June issue of Cancer Cell, demonstrates that agents known to regulate gene expression can also impact regulatory RNAs that may function as tumor suppressors in normal cells and proposes a novel strategy for treating human cancers.

Researchers at Dana-Farber Cancer Institute report that a common "oncogene engine" – a small family of malfunctioning cell growth switches – drives several seemingly unrelated, lethal forms of cancer, including malignant melanoma. The finding suggests that it may be possible to attack these different cancers with the same therapy.

A chemist at Washington University in St. Louis has developed a remarkable nanostructured material that can repel pests , sweeten the air, and some day might even be used as a timed drug delivery system –as a nasal spray, for instance.

Scientists at Joslin Diabetes Center have discovered that a surprisingly high percentage of people with type 1 diabetes (insulin-dependent) who have had the disease for 50 years or longer (The Joslin Medalists) may still have residual functioning, insulin-producing islet cells and/or islet cell antibodies. The findings will be presented June 12 at the American Diabetes Association (ADA) 66th Annual Scientific Sessions in Washington, D.C.

Coral (Acropora) from the Line Islands covered by bubble algae
(Dictyosphaeria)Bacteria and algae are combining to kill coral –– and human activities are compounding the problem.

Mention the word pollen to most people and it triggers thoughts of their battle against allergic reactions. However, a University of Alberta researcher has found an important spin-off for this fine yellow dust-like powder.

Biologists from Washington University in St. Louis and their collaborators from Taiwan have examined the DNA sequence family trees of rice varieties and have determined that the crop was domesticated independently at least twice in various Asian locales.