Patients with advanced non–small-cell lung cancer (NSCLC) whose tumor cells contain extra copies of the epidermal growth factor receptor (EGFR) gene may be more likely to respond to the drug gefitinib (Iressa), and this high gene copy number may be an effective predictor of gefitinib efficacy, according to a new study in the May 4 issue of the Journal of the National Cancer Institute.
NSCLC is the leading cause of cancer death worldwide. In patients with advanced disease, chemotherapy produces only modest survival benefits. However, about 12% to 27% of advanced NSCLC patients respond to tyrosine kinase inhibitors, such as gefitinib and erlotinib (Tarceva). Methods to predict which patients are most likely to respond to these drugs are under development.
To investigate possible predictive markers for gefitinib efficacy, Fred R. Hirsch, M.D., Ph.D., of the University of Colorado Cancer Center in Aurora, and colleagues evaluated EGFR status, gene copy number, and protein expression and Akt activation status in 102 patients with advanced NSCLC.
Sarah L. Zielinski | EurekAlert!
Obstructing the ‘inner eye’
07.07.2017 | Friedrich-Schiller-Universität Jena
Drone vs. truck deliveries: Which create less carbon pollution?
31.05.2017 | University of Washington
Physicists have developed a new technique that uses electrical voltages to control the electron spin on a chip. The newly-developed method provides protection from spin decay, meaning that the contained information can be maintained and transmitted over comparatively large distances, as has been demonstrated by a team from the University of Basel’s Department of Physics and the Swiss Nanoscience Institute. The results have been published in Physical Review X.
For several years, researchers have been trying to use the spin of an electron to store and transmit information. The spin of each electron is always coupled...
What is the mass of a proton? Scientists from Germany and Japan successfully did an important step towards the most exact knowledge of this fundamental constant. By means of precision measurements on a single proton, they could improve the precision by a factor of three and also correct the existing value.
To determine the mass of a single proton still more accurate – a group of physicists led by Klaus Blaum and Sven Sturm of the Max Planck Institute for Nuclear...
The research team of Prof. Dr. Oliver Einsle at the University of Freiburg's Institute of Biochemistry has long been exploring the functioning of nitrogenase....
A one trillion tonne iceberg - one of the biggest ever recorded -- has calved away from the Larsen C Ice Shelf in Antarctica, after a rift in the ice,...
Physics supports biology: Researchers from PTB have developed a model system to investigate friction phenomena with atomic precision
Friction: what you want from car brakes, otherwise rather a nuisance. In any case, it is useful to know as precisely as possible how friction phenomena arise –...
21.07.2017 | Event News
19.07.2017 | Event News
12.07.2017 | Event News
21.07.2017 | Earth Sciences
21.07.2017 | Power and Electrical Engineering
21.07.2017 | Physics and Astronomy