MGH study provides clues to best therapeutic schedule, cellular underpinnings of treatment
Although the earliest clinical trials of the cancer-fighting potential of antiangiogenesis drugs did not have the dramatic results that some hoped for, subsequent trials showed that combining agents that suppress blood-vessel growth with therapies that destroy cancer cells can improve patient survival. In the December issue of Cancer Cell, researchers from the Massachusetts General Hospital (MGH) describe how timing may be crucial to successfully combining angiogenesis inhibitors with radiation treatment and reveal more about exactly how these drugs work to fight cancer, which is somewhat different from earlier theories.
"The blood vessels that develop to supply nutrients to a tumor are not normal," says Rakesh Jain, PhD, director of the Steele Laboratory in the MGH Department of Radiation Therapy, the studys senior author. "The vessels are leaky, dilated, disfigured, and do not evenly inflitrate the tumor, which can interfere with standard cancer therapies. Chemotherapy drugs are not distributed throughout the tumor, and the oxygen level is low, making tumors resistant to radiation therapy. It now appears that antiangiogenic therapy transiently improves a tumors blood supply and oxygenation, making it more vulnerable to radiation therapy."
Sue McGreevey | EurekAlert!
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Ultrafast lasers have introduced new possibilities in engraving ultrafine structures, and scientists are now also investigating how to use them to etch microstructures into thin glass. There are possible applications in analytics (lab on a chip) and especially in electronics and the consumer sector, where great interest has been shown.
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Terahertz excitation of selected crystal vibrations leads to an effective magnetic field that drives coherent spin motion
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Researchers from the Institute for Quantum Computing (IQC) at the University of Waterloo led the development of a new extensible wiring technique capable of controlling superconducting quantum bits, representing a significant step towards to the realization of a scalable quantum computer.
"The quantum socket is a wiring method that uses three-dimensional wires based on spring-loaded pins to address individual qubits," said Jeremy Béjanin, a PhD...
In a paper in Scientific Reports, a research team at Worcester Polytechnic Institute describes a novel light-activated phenomenon that could become the basis for applications as diverse as microscopic robotic grippers and more efficient solar cells.
A research team at Worcester Polytechnic Institute (WPI) has developed a revolutionary, light-activated semiconductor nanocomposite material that can be used...
By forcefully embedding two silicon atoms in a diamond matrix, Sandia researchers have demonstrated for the first time on a single chip all the components needed to create a quantum bridge to link quantum computers together.
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14.10.2016 | Event News
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27.10.2016 | Physics and Astronomy
27.10.2016 | Life Sciences