Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

New compound discovered that rapidly kills liver cancer

14.03.2012
Scientists have identified a new compound that rapidly kills hepatocellular carcinoma (HCC) cells, the most common form of liver cancer and fifth most common cancer worldwide, while sparing healthy tissue.

The compound, Factor Qunolinone Inhibitor 1 (FQI1), works by inhibiting an oncogene originally discovered by a team of researchers led by Devanand Sarkar, M.B.B.S., Ph.D., Harrison Scholar at Virginia Commonwealth University (VCU) Massey Cancer Center, Blick Scholar and assistant professor in the Department of Human and Molecular Genetics and member of the VCU Institute of Molecular Medicine at the VCU School of Medicine.

Recently published in the journal Proceedings of the National Academy of Sciences, the study demonstrates that HCC cells have what is known as an "oncogene addiction" to the transcription factor Late SV40 Factor (LSF). Oncogene addiction is a term used when a cancer cell is found to be dependent on a single gene to survive. Using the compound Factor Quinolinone Inhibitor 1 (FQI1), the scientists prevented LSF from binding to HCC DNA during the transcription process, which is the first step in a series of actions that lead to cell division and duplication. This action caused rapid HCC cell death in laboratory experiments and a dramatic reduction in tumor growth in mouse models with no observable toxicity to normal liver cells.

"We may be on the verge of developing a new, effective drug for liver cancer," said Sarkar. "In the last 2 to 3 years, we demonstrated the role of LSF in liver cancer and have been screening over 110,000 compounds to identify the ones that inhibit LSF function. We identified FQI1 as one of a class of effective compounds, but we never anticipated it would work this well."

Sarkar discovered LSF's role in liver cancer in 2010 when he demonstrated significantly higher LSF levels in HCC patients in comparison to healthy individuals, and showed that inhibition of LSF reduced the progression of HCC in laboratory experiments. This finding led to the collaboration between VCU and Boston University that resulted in the discovery of FQI1.

Now that FQI1 has been identified, pharmacokinetic studies are being conducted to determine how the drug behaves in the human body. Once the scientists have determined how the drug is absorbed, distributed, metabolized and eliminated from the body, they will work with clinicians to translate their findings into phase I clinical trials in patients with liver cancer.

"We have proven this compound is effective and nontoxic in living animals," said Sarkar. "While we won't know how FQI1 reacts in humans until the first clinical trial, we are very excited by our findings and hope they lead to a new drug for a disease that is currently very difficult to treat."

The lead investigators on this study were Trevor J. Grant and Joshua Bishop, Ph.D., from Boston University. In addition to Grant and Bishop, Sarkar collaborated with Ayesha Siddiq, Ph.D., Rachel Gredler and Xue-Ning Shen, M.D., from VCU School of Medicine; Jennifer Sherman and Kevin Fitzgerald, Ph.D., from Alnylam Pharmaceuticals, Inc.; Sriharsa Pradhan, Ph.D., from New England Biolabs, Inc.; Laura A. Briggs, Ph.D., and William H. Andrews, Ph.D., from Sierra Sciences, LLC; and Lisa Christadore, Girish Barot, Ph.D., Hang Gyeong Chin, Sarah Woodson, John Kavouris, Tracy Meehan, Scott E. Schaus, Ph.D., and Ulla Hansen, Ph.D., from Boston University.

The full manuscript is available online at: http://www.pnas.org/content/early/2012/03/02/1121601109.full.pdf+html

News directors: Broadcast access to VCU Massey Cancer Center experts is available through VideoLink ReadyCam. ReadyCam transmits video and audio via fiber optics through a system that is routed to your newsroom. To schedule a live or taped interview, contact John Wallace, (804) 628-1550.

About VCU Massey Cancer Center: VCU Massey Cancer Center is one of only 66 National Cancer Institute-designated institutions in the country that leads and shapes America's cancer research efforts. Working with all kinds of cancers, the Center conducts basic, translational and clinical cancer research, provides state-of-the-art treatments and clinical trials, and promotes cancer prevention and education. Since 1974, Massey has served as an internationally recognized center of excellence. It has one of the largest offerings of clinical trials in Virginia and serves patients in Richmond and in four satellite locations. Its 1,000 researchers, clinicians and staff members are dedicated to improving the quality of human life by developing and delivering effective means to prevent, control and ultimately cure cancer. Visit Massey online at www.massey.vcu.edu or call 877-4-MASSEY for more information.

About VCU and the VCU Medical Center: Virginia Commonwealth University is a major, urban public research university with national and international rankings in sponsored research. Located on two downtown campuses in Richmond, VCU enrolls more than 31,000 students in 211 certificate and degree programs in the arts, sciences and humanities. Sixty-nine of the programs are unique in Virginia, many of them crossing the disciplines of VCU's 13 schools and one college. MCV Hospitals and the health sciences schools of Virginia Commonwealth University compose the VCU Medical Center, one of the nation's leading academic medical centers. For more, see www.vcu.edu.

John Wallace | EurekAlert!
Further information:
http://www.vcu.edu

More articles from Health and Medicine:

nachricht New study points the way to therapy for rare cancer that targets the young
22.11.2017 | Rockefeller University

nachricht Penn study identifies new malaria parasites in wild bonobos
21.11.2017 | University of Pennsylvania School of Medicine

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: Nanoparticles help with malaria diagnosis – new rapid test in development

The WHO reports an estimated 429,000 malaria deaths each year. The disease mostly affects tropical and subtropical regions and in particular the African continent. The Fraunhofer Institute for Silicate Research ISC teamed up with the Fraunhofer Institute for Molecular Biology and Applied Ecology IME and the Institute of Tropical Medicine at the University of Tübingen for a new test method to detect malaria parasites in blood. The idea of the research project “NanoFRET” is to develop a highly sensitive and reliable rapid diagnostic test so that patient treatment can begin as early as possible.

Malaria is caused by parasites transmitted by mosquito bite. The most dangerous form of malaria is malaria tropica. Left untreated, it is fatal in most cases....

Im Focus: A “cosmic snake” reveals the structure of remote galaxies

The formation of stars in distant galaxies is still largely unexplored. For the first time, astron-omers at the University of Geneva have now been able to closely observe a star system six billion light-years away. In doing so, they are confirming earlier simulations made by the University of Zurich. One special effect is made possible by the multiple reflections of images that run through the cosmos like a snake.

Today, astronomers have a pretty accurate idea of how stars were formed in the recent cosmic past. But do these laws also apply to older galaxies? For around a...

Im Focus: Visual intelligence is not the same as IQ

Just because someone is smart and well-motivated doesn't mean he or she can learn the visual skills needed to excel at tasks like matching fingerprints, interpreting medical X-rays, keeping track of aircraft on radar displays or forensic face matching.

That is the implication of a new study which shows for the first time that there is a broad range of differences in people's visual ability and that these...

Im Focus: Novel Nano-CT device creates high-resolution 3D-X-rays of tiny velvet worm legs

Computer Tomography (CT) is a standard procedure in hospitals, but so far, the technology has not been suitable for imaging extremely small objects. In PNAS, a team from the Technical University of Munich (TUM) describes a Nano-CT device that creates three-dimensional x-ray images at resolutions up to 100 nanometers. The first test application: Together with colleagues from the University of Kassel and Helmholtz-Zentrum Geesthacht the researchers analyzed the locomotory system of a velvet worm.

During a CT analysis, the object under investigation is x-rayed and a detector measures the respective amount of radiation absorbed from various angles....

Im Focus: Researchers Develop Data Bus for Quantum Computer

The quantum world is fragile; error correction codes are needed to protect the information stored in a quantum object from the deteriorating effects of noise. Quantum physicists in Innsbruck have developed a protocol to pass quantum information between differently encoded building blocks of a future quantum computer, such as processors and memories. Scientists may use this protocol in the future to build a data bus for quantum computers. The researchers have published their work in the journal Nature Communications.

Future quantum computers will be able to solve problems where conventional computers fail today. We are still far away from any large-scale implementation,...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

Event News

Ecology Across Borders: International conference brings together 1,500 ecologists

15.11.2017 | Event News

Road into laboratory: Users discuss biaxial fatigue-testing for car and truck wheel

15.11.2017 | Event News

#Berlin5GWeek: The right network for Industry 4.0

30.10.2017 | Event News

 
Latest News

Corporate coworking as a driver of innovation

22.11.2017 | Business and Finance

PPPL scientists deliver new high-resolution diagnostic to national laser facility

22.11.2017 | Physics and Astronomy

Quantum optics allows us to abandon expensive lasers in spectroscopy

22.11.2017 | Physics and Astronomy

VideoLinks
B2B-VideoLinks
More VideoLinks >>>