When a physician discovers cancer in a patient, the first thing the doctor wants to know is whether that cancer has spread, or "metastasized." This metastasis signifies that the patient has entered a new and potentially lethal phase of the disease. A new study opens up the possibility of detecting whether a tumor will spread long before a patient ever reaches that dangerous phase.
Scientists at the Pacific Northwest Research Institute in Seattle have found evidence for a DNA structure characteristic of metastasis in normal tissues from prostates with metastazing tumors. The finding suggests that the potential for metastasis can be detected early in apparently normal tissues. The study, which appears online this week, will be published in the August 3rd issue of the Proceedings of the National Academy of Sciences.
This discovery challenges current thinking about how a cancer develops and spreads. Rare or "rogue" cells may not be breaking away from the tumor and starting new tumors elsewhere, as previously thought. It now appears that the DNA structure for metastasis is actually hardwired into seemingly normal cells that are destined to become metastatic tumor cells.
Donald C. Malins | EurekAlert!
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Physicists of the University of Würzburg have made an astonishing discovery in a specific type of topological insulators. The effect is due to the structure of the materials used. The researchers have now published their work in the journal Science.
Topological insulators are currently the hot topic in physics according to the newspaper Neue Zürcher Zeitung. Only a few weeks ago, their importance was...
In recent years, lasers with ultrashort pulses (USP) down to the femtosecond range have become established on an industrial scale. They could advance some applications with the much-lauded “cold ablation” – if that meant they would then achieve more throughput. A new generation of process engineering that will address this issue in particular will be discussed at the “4th UKP Workshop – Ultrafast Laser Technology” in April 2017.
Even back in the 1990s, scientists were comparing materials processing with nanosecond, picosecond and femtosesecond pulses. The result was surprising:...
Have you ever wondered how you see the world? Vision is about photons of light, which are packets of energy, interacting with the atoms or molecules in what...
A multi-institutional research collaboration has created a novel approach for fabricating three-dimensional micro-optics through the shape-defined formation of porous silicon (PSi), with broad impacts in integrated optoelectronics, imaging, and photovoltaics.
Working with colleagues at Stanford and The Dow Chemical Company, researchers at the University of Illinois at Urbana-Champaign fabricated 3-D birefringent...
In experiments with magnetic atoms conducted at extremely low temperatures, scientists have demonstrated a unique phase of matter: The atoms form a new type of quantum liquid or quantum droplet state. These so called quantum droplets may preserve their form in absence of external confinement because of quantum effects. The joint team of experimental physicists from Innsbruck and theoretical physicists from Hannover report on their findings in the journal Physical Review X.
“Our Quantum droplets are in the gas phase but they still drop like a rock,” explains experimental physicist Francesca Ferlaino when talking about the...
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