Researchers at Oregon State University have developed a new way to selectively insert compounds into cancer cells - a system that will help surgeons identify malignant tissues and then, in combination with phototherapy, kill any remaining cancer cells after a tumor is removed.

Cell biologists at UT Southwestern Medical Center have targeted telomeres with a small molecule called 6-thiodG that takes advantage of the cell's 'biological clock' to kill cancer cells and shrink tumor growth. Dr. Jerry W. Shay, Professor and Vice Chairman of Cell Biology at UT Southwestern, and colleague, Dr. Woodring E. Wright, Professor of Cell Biology and Internal Medicine, found that 6-thio-2'-deoxyguanosine could stop the growth of cancer cells in culture and decrease the growth of tumors in mice.

A new study has produced the best evidence yet that the role of genetics in complex traits, including obesity, varies over time. Both the era in which scientific research is conducted and the era in which subjects were born may have an impact on the degree to which genetic factors are present in scientific data.

A team of researchers led by Duke Cancer Institute has identified key events that prompt certain cancer cells to develop resistance to otherwise lethal therapies. By mapping the specific steps that cells of melanoma, breast cancer and a blood cancer called myelofibrosis use to become resistant to drugs, the researchers now have much better targets for blocking those pathways and keeping current therapies effective.

Results of an early-stage clinical trial of two experimental vaccines against Ebola and Marburg viruses - the first to be completed in an African country - showed that they were safe and induced immune responses in healthy Ugandan adult volunteers. Developed by researchers at the National Institute of Allergy and Infectious Diseases (NIAID), part of the National Institutes of Health, the experimental vaccines (called DNA vaccines) were predecessors to a next-generation candidate vaccine, called the NIAID/GSK Ebola vaccine, which is currently in clinical development.

Programmed cell death is a mechanism that causes defective and potentially harmful cells to destroy themselves. It serves a number of purposes in the body, including the prevention of malignant tumor growth. Now, researchers at Technische Universität München (TUM) have discovered a previously unknown mechanism for regulating programmed cell death.

Nutrition experts are continually debating the nutritional value of carbohydrate-containing foods and whether some are healthier than others. High carbohydrate foods are classified by how much they increase blood sugar; known as glycemic index. In new findings led by researchers at Brigham and Women's Hospital (BWH) in Boston and Johns Hopkins University (JHU) in Baltimore, researchers looked at