Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

Cancer pain control possible with gene therapy

15.10.2002


Mouse studies indicate successful pain relief, University of Pittsburgh researchers say



By "programming" a herpes simplex virus to deliver a gene-mediated pain-blocking protein at the cellular level, University of Pittsburgh researchers have been able to significantly reduce cancer-related pain in mice with tumors, the researchers report in the November issue of the journal Annals of Neurology. The paper, "Herpes vector-mediated expression of proenkephalin reduces bone cancer pain," is now available online at the journal’s Web site, http://www.interscience.wiley.com/jpages/0364-5134/.

"Chronic pain is notoriously difficult to treat effectively," said co-author Joseph Glorioso, Ph.D., chairman of the department of molecular genetics and biochemistry and director of the Molecular Medicine Institute at the University of Pittsburgh School of Medicine, and president of the American Society of Gene Therapy. "We’ve been able to show that using this virus can significantly reduce bone cancer pain – at least in mice."


The investigators are pursuing necessary approvals to begin a clinical trial in patients with severe pain resulting from metastatic cancer, and hope to start enrolling patients sometime next year.

"We are excited about the possibility that this approach may help to control pain in patients who can’t get complete relief from the maximum current treatment," said senior author David Fink, M.D., professor of neurology and molecular genetics and biochemistry at the University of Pittsburgh School of Medicine and chief of neurology and director of the Geriatric Research Education and Clinical Center at the Veterans Administration Pittsburgh Healthcare System.

Drs. Fink, Glorioso and their colleagues created an inactivated herpes simplex virus that carries the human gene for proenkaphalin, a naturally occurring painkilling peptide, a combination of amino acids.

Mice with tumors in a leg bone that received injections with the altered virus showed a substantial and significant reduction in pain-related behavior, the authors report.

"Although we have many powerful medications to treat pain, unwelcome side effects of these drugs limit our ability to relieve the most severe painful conditions," said Dr. Fink. "Using the virus to deliver the natural painkilling peptide may help in those cases."

These undesirable side effects can include excessive drowsiness, constipation and difficulty urinating.

"It remains to be seen how effective this may be in humans," said Dr. Glorioso. "But what we have seen so far is encouraging."


In addition to Drs. Fink and Glorioso, other authors include James Goss, Ph.D.; Marina Mata, M.D.; Cara Harley, B.S.; Xiaoping Hu and William Goins, Ph.D.

Additional Contact:
Michele D. Baum
Alan Aldinger
PHONE: (412) 647-3555
FAX: (412) 624-3184
E-MAIL:
BaumMD@upmc.edu
AldiAL@upmc.edu

Michele Baum | EurekAlert!
Further information:
http://www.interscience.wiley.com/jpages/0364-5134/
http://www.upmc.edu/

More articles from Health and Medicine:

nachricht NIST scientists discover how to switch liver cancer cell growth from 2-D to 3-D structures
17.11.2017 | National Institute of Standards and Technology (NIST)

nachricht High speed video recording precisely measures blood cell velocity
15.11.2017 | ITMO 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: 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,...

Im Focus: Wrinkles give heat a jolt in pillared graphene

Rice University researchers test 3-D carbon nanostructures' thermal transport abilities

Pillared graphene would transfer heat better if the theoretical material had a few asymmetric junctions that caused wrinkles, according to Rice University...

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

NASA detects solar flare pulses at Sun and Earth

17.11.2017 | Physics and Astronomy

NIST scientists discover how to switch liver cancer cell growth from 2-D to 3-D structures

17.11.2017 | Health and Medicine

The importance of biodiversity in forests could increase due to climate change

17.11.2017 | Studies and Analyses

VideoLinks
B2B-VideoLinks
More VideoLinks >>>