Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

Possible New Combination Treatment for Cancer

20.06.2014

Scientists at the Sahlgrenska Academy have developed a new cancer treatment that has proved to be effective in mice. The treatment, which is presented in the prestigious scientific journal PNAS, is based on newly discovered properties of the so-called BET bromodomain inhibitors.

A few years ago, a molecule known as “JQ1” was developed, which can block so called BET bromodomain proteins. This switch off the known cancer gene MYC thereby preventing cancer cells from dividing.


Jonas Nilsson, Sahlgrenska Cancer Center at the University of Gothenburg

The discovery was regarded as a major breakthrough. A problem was that JQ1 did not function optimally in animal experiments, and this means that it has not been possible to test the treatment on cancer patients.

New molecule

... more about:
»Cancer »HDAC »Treatment »genes »lymphoma »proteins

Jonas Nilsson and his research group have developed, in collaboration with the Canadian company Zenith epigenetics, a new molecule known as “RVX2135”, which has been tested in mice with MYC-driven lymphoma. The study will be published this week in the early edition of the prestigious scientific journal PNAS and shows that the new molecule not only causes cancer cells in culture to stop growing, it also causes tumors to die. This means that the mice survive their cancer longer.

“We hypothesized that the new molecule could also switch off the MYC gene. However, our studies show that neither the JQ1 molecule nor the RVX2135 molecule have this property in these types of cells. This means that the mode of action is probably not as simple as we believed,” says Jonas Nilsson, Group Leader at the Sahlgrenska Cancer Center.

Increased survival in mice

The scientists in Gothenburg also discovered that the RVX2135 molecule activates the same genes as those activated by molecules known as “HDAC inhibitors”, which are already used to treat cancer. The scientists then tested HDAC inhibitors together with the newly discovered molecules and it turned out that the combination increased survival in mice with lymphoma.

“It was also possible to reduce the dose of HDAC inhibitors when used in combination with RVX2135 and this reduced adverse effects. We see this as a breakthrough in the clinical development of this type of treatment,” Jonas Nilsson explains.

Further development

Jonas Nilsson has recently founded the Sahlgrenska Translational Melanoma Group together with surgeons and oncologists at the Sahlgrenska University Hospital. This group will investigate whether the treatment can be used also for malignant melanoma.

“The work is challenging, but we believe that the prospects for success with combination treatments are good,” says Jonas Nilsson.

The article BET and HDAC inhibitors induce similar genes and biological effects and synergize to kill in Myc-induced murine lymphoma will be published online in Proceedings of the National Academy of Sciences on 16 June.

Link to article: http://www.pnas.org/content/early/2014/06/13/1406722111.abstract

More information about the research project: http://www.cancercenter.gu.se/research/nilsson-lab/

Contact:
Jonas Nilsson, Sahlgrenska Cancer Center at the Sahlgrenska Academy, University of Gothenburg
jonas.a.nilsson@surgery.gu.se
Tel.: +46 31 786 6768
Cell: +46 73 027 3039

Weitere Informationen:

http://sahlgrenska.gu.se/english/news_and_events/news/News_Detail/?languageId=10...

Henrik Axlid | idw - Informationsdienst Wissenschaft

Further reports about: Cancer HDAC Treatment genes lymphoma proteins

More articles from Health and Medicine:

nachricht Antibiotic effective against drug-resistant bacteria in pediatric skin infections
17.02.2017 | University of California - San Diego

nachricht Tiny magnetic implant offers new drug delivery method
14.02.2017 | University of British Columbia

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: Breakthrough with a chain of gold atoms

In the field of nanoscience, an international team of physicists with participants from Konstanz has achieved a breakthrough in understanding heat transport

In the field of nanoscience, an international team of physicists with participants from Konstanz has achieved a breakthrough in understanding heat transport

Im Focus: DNA repair: a new letter in the cell alphabet

Results reveal how discoveries may be hidden in scientific “blind spots”

Cells need to repair damaged DNA in our genes to prevent the development of cancer and other diseases. Our cells therefore activate and send “repair-proteins”...

Im Focus: Dresdner scientists print tomorrow’s world

The Fraunhofer IWS Dresden and Technische Universität Dresden inaugurated their jointly operated Center for Additive Manufacturing Dresden (AMCD) with a festive ceremony on February 7, 2017. Scientists from various disciplines perform research on materials, additive manufacturing processes and innovative technologies, which build up components in a layer by layer process. This technology opens up new horizons for component design and combinations of functions. For example during fabrication, electrical conductors and sensors are already able to be additively manufactured into components. They provide information about stress conditions of a product during operation.

The 3D-printing technology, or additive manufacturing as it is often called, has long made the step out of scientific research laboratories into industrial...

Im Focus: Mimicking nature's cellular architectures via 3-D printing

Research offers new level of control over the structure of 3-D printed materials

Nature does amazing things with limited design materials. Grass, for example, can support its own weight, resist strong wind loads, and recover after being...

Im Focus: Three Magnetic States for Each Hole

Nanometer-scale magnetic perforated grids could create new possibilities for computing. Together with international colleagues, scientists from the Helmholtz Zentrum Dresden-Rossendorf (HZDR) have shown how a cobalt grid can be reliably programmed at room temperature. In addition they discovered that for every hole ("antidot") three magnetic states can be configured. The results have been published in the journal "Scientific Reports".

Physicist Dr. Rantej Bali from the HZDR, together with scientists from Singapore and Australia, designed a special grid structure in a thin layer of cobalt in...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

Event News

Booth and panel discussion – The Lindau Nobel Laureate Meetings at the AAAS 2017 Annual Meeting

13.02.2017 | Event News

Complex Loading versus Hidden Reserves

10.02.2017 | Event News

International Conference on Crystal Growth in Freiburg

09.02.2017 | Event News

 
Latest News

Biocompatible 3-D tracking system has potential to improve robot-assisted surgery

17.02.2017 | Medical Engineering

Real-time MRI analysis powered by supercomputers

17.02.2017 | Medical Engineering

Antibiotic effective against drug-resistant bacteria in pediatric skin infections

17.02.2017 | Health and Medicine

VideoLinks
B2B-VideoLinks
More VideoLinks >>>