Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

Prostate cancer therapy - study suggests new molecular screening theory

15.04.2005


Smad7 protein levels may predict therapy response



Levels of the Smad7 protein may predict therapeutic response in patients with prostate cancer according to research published today by investigators at the Uppsala Branch of the Ludwig Institute for Cancer Research (LICR).

"Although the 2-ME compound is in early clinical trials, no-one has fully understood the molecular mechanisms of how it causes the death of cancer cells, but not normal cells," says Dr. Maréne Landström, the senior author of the paper published in the prestigious Journal of Biological Chemistry. "We found that 2-ME works through a protein called Smad7, and that artificially lowering the amount of Smad7 in prostate cancer cells reduced 2-ME’s ability to cause cell death. This finding suggests that the levels of Smad7, and other proteins in this molecular pathway, might predict the cell-killing ability of other cancer therapeutics and thus their effectiveness for treating individual patients."


Smad7 was originally discovered at the LICR Uppsala Branch in 1997, and the team reported, in the journal Nature, that the protein stopped cell growth by inhibiting a crucial oncogene known as TGF beta. As a result of the current study, Smad7 is now thought to play a crucial role connecting the mechanisms of cell growth, governed by TGF beta, and those of cell death, governed by another oncogene, p38 MAPK.

Dr. Carl-Henrik Heldin, Director of both the Uppsala Branch and LICR’s international ’TGF beta Program’ cautions that the research is at a preliminary stage and that more work is now needed to investigate whether the levels of Smad7 correlate with patients’ responses to different therapies. "If we can determine which patients are most likely to benefit from a particular therapeutic approach, we can reduce the possibility that a patient will undergo treatment that has side-effects but no benefit. More importantly, we may one day be able to effectively target each individual patient with the therapy-type best for him."

Sarah L. White, Ph.D. | EurekAlert!
Further information:
http://www.licr.org

More articles from Studies and Analyses:

nachricht Win-win strategies for climate and food security
02.10.2017 | International Institute for Applied Systems Analysis (IIASA)

nachricht The personality factor: How to foster the sharing of research data
06.09.2017 | ZBW – Leibniz-Informationszentrum Wirtschaft

All articles from Studies and Analyses >>>

The most recent press releases about innovation >>>

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

Im Focus: Neutron star merger directly observed for the first time

University of Maryland researchers contribute to historic detection of gravitational waves and light created by event

On August 17, 2017, at 12:41:04 UTC, scientists made the first direct observation of a merger between two neutron stars--the dense, collapsed cores that remain...

Im Focus: Breaking: the first light from two neutron stars merging

Seven new papers describe the first-ever detection of light from a gravitational wave source. The event, caused by two neutron stars colliding and merging together, was dubbed GW170817 because it sent ripples through space-time that reached Earth on 2017 August 17. Around the world, hundreds of excited astronomers mobilized quickly and were able to observe the event using numerous telescopes, providing a wealth of new data.

Previous detections of gravitational waves have all involved the merger of two black holes, a feat that won the 2017 Nobel Prize in Physics earlier this month....

Im Focus: Smart sensors for efficient processes

Material defects in end products can quickly result in failures in many areas of industry, and have a massive impact on the safe use of their products. This is why, in the field of quality assurance, intelligent, nondestructive sensor systems play a key role. They allow testing components and parts in a rapid and cost-efficient manner without destroying the actual product or changing its surface. Experts from the Fraunhofer IZFP in Saarbrücken will be presenting two exhibits at the Blechexpo in Stuttgart from 7–10 November 2017 that allow fast, reliable, and automated characterization of materials and detection of defects (Hall 5, Booth 5306).

When quality testing uses time-consuming destructive test methods, it can result in enormous costs due to damaging or destroying the products. And given that...

Im Focus: Cold molecules on collision course

Using a new cooling technique MPQ scientists succeed at observing collisions in a dense beam of cold and slow dipolar molecules.

How do chemical reactions proceed at extremely low temperatures? The answer requires the investigation of molecular samples that are cold, dense, and slow at...

Im Focus: Shrinking the proton again!

Scientists from the Max Planck Institute of Quantum Optics, using high precision laser spectroscopy of atomic hydrogen, confirm the surprisingly small value of the proton radius determined from muonic hydrogen.

It was one of the breakthroughs of the year 2010: Laser spectroscopy of muonic hydrogen resulted in a value for the proton charge radius that was significantly...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

Event News

ASEAN Member States discuss the future role of renewable energy

17.10.2017 | Event News

World Health Summit 2017: International experts set the course for the future of Global Health

10.10.2017 | Event News

Climate Engineering Conference 2017 Opens in Berlin

10.10.2017 | Event News

 
Latest News

Ocean atmosphere rife with microbes

17.10.2017 | Life Sciences

Neutrons observe vitamin B6-dependent enzyme activity useful for drug development

17.10.2017 | Life Sciences

NASA finds newly formed tropical storm lan over open waters

17.10.2017 | Earth Sciences

VideoLinks
B2B-VideoLinks
More VideoLinks >>>