Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

Gene silencer may improve chemo and radiation

21.10.2003


The following news tip is based on abstracts to be presented at the annual meeting of the American Society for Therapeutic Radiology and Oncology (ASTRO), October 19 – 23, 2003 in Salt Lake City, Utah.



Like bacteria that resist common antibiotics, cancer cells can survive chemotherapy and radiation. Radiation oncologists at the Johns Hopkins Kimmel Cancer Center report they have found a gene "silencer" that blocks a cancer cell’s ability to repair itself after drugs and radiation cause damage.

Engineered pieces of protein-encoding RNA (ribonucleic acid), the mirror image of genes’ building blocks, were used to target repair proteins in cancer cells effectively shutting the RNA down. Unable to make the necessary repair proteins, cancer cells then become susceptible to the therapy.


"By dismantling the cancer cell’s machinery to produce these repair proteins, we destroy its ability to withstand toxic chemotherapy and radiation treatments," says Theodore DeWeese, M.D., director of the Department of Radiation Oncology at the Johns Hopkins Kimmel Cancer Center.

The researchers saw a decrease in the production of targeted repair proteins by approximately 90 percent, and were able to reduce the amount of radiation needed to damage cells.

DeWeese’s research team members are Spencer J. Collis, Ph.D., Michael J. Swartz, and William G. Nelson, M.D., Ph.D.

Embargoed for Release Until Presentation on Monday, October 20th, 10:45 a.m., MT, Salt Palace Convention Center

Johns Hopkins Kimmel Cancer Center
Media Contact: Vanessa Wasta
410-955-1287
E-mail: wastava@jhmi.edu


ASTRO Press Room
801-534-4743

Vanessa Wasta | EurekAlert!
Further information:
http://www.hopkinsmedicine.org/

More articles from Health and Medicine:

nachricht Serious children’s infections also spreading in Switzerland
26.07.2017 | Universitätsspital Bern

nachricht New vaccine production could improve flu shot accuracy
25.07.2017 | Duke University

All articles from Health and Medicine >>>

The most recent press releases about innovation >>>

Die letzten 5 Focus-News des innovations-reports im Überblick:

Im Focus: Carbon Nanotubes Turn Electrical Current into Light-emitting Quasi-particles

Strong light-matter coupling in these semiconducting tubes may hold the key to electrically pumped lasers

Light-matter quasi-particles can be generated electrically in semiconducting carbon nanotubes. Material scientists and physicists from Heidelberg University...

Im Focus: Flexible proximity sensor creates smart surfaces

Fraunhofer IPA has developed a proximity sensor made from silicone and carbon nanotubes (CNT) which detects objects and determines their position. The materials and printing process used mean that the sensor is extremely flexible, economical and can be used for large surfaces. Industry and research partners can use and further develop this innovation straight away.

At first glance, the proximity sensor appears to be nothing special: a thin, elastic layer of silicone onto which black square surfaces are printed, but these...

Im Focus: 3-D scanning with water

3-D shape acquisition using water displacement as the shape sensor for the reconstruction of complex objects

A global team of computer scientists and engineers have developed an innovative technique that more completely reconstructs challenging 3D objects. An ancient...

Im Focus: Manipulating Electron Spins Without Loss of Information

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...

Im Focus: The proton precisely weighted

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...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

Event News

Clash of Realities 2017: Registration now open. International Conference at TH Köln

26.07.2017 | Event News

Closing the Sustainability Circle: Protection of Food with Biobased Materials

21.07.2017 | Event News

»We are bringing Additive Manufacturing to SMEs«

19.07.2017 | Event News

 
Latest News

CCNY physicists master unexplored electron property

26.07.2017 | Physics and Astronomy

Molecular microscopy illuminates molecular motor motion

26.07.2017 | Life Sciences

Large-Mouthed Fish Was Top Predator After Mass Extinction

26.07.2017 | Earth Sciences

VideoLinks
B2B-VideoLinks
More VideoLinks >>>