Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

Protein found that slows hepatitis C growth in liver cells

30.04.2007
Biomedical researchers have identified a cellular protein that interferes with hepatitis C virus replication, a finding that ultimately may help scientists develop new drugs to fight the virus.

The anti-hepatitis C activity of the protein, called “p21-activated kinase 1” (PAK1), was discovered by scientists at the University of Texas Medical Branch at Galveston (UTMB), who describe their findings in an article in the current issue of the Journal of Biological Chemistry. In addition to presenting the researchers’ discovery that PAK1 controls the rate at which hepatitis C virus replicates, the paper describes the biochemical pathways that lead to PAK1 activation and the specific mechanisms by which PAK1 interferes with the ability of hepatitis C to hijack liver cells and make more copies of itself.

“Our findings reveal a novel cellular control pathway that regulates the growth of hepatitis C virus within the cell,” said Dr. Stanley M. Lemon, director of the National Institutes of Health-funded Hepatitis C Research Center at UTMB and of the academic medical center’s Institute for Human Infections and Immunity. Lemon, senior author of the Journal of Biological Chemistry paper, added, “Understanding this better is likely to suggest new approaches to therapy for this difficult to treat disease."

Hepatitis C chronically infects approximately 170 million people worldwide. The most effective treatment for the virus, interferon-based therapy, eradicates the virus less than 50 percent of the time and causes debilitating side effects. Those for whom that treatment fails are at high risk for fatal cirrhosis or liver cancer. In the United States, about half of all liver cancer cases occur in people infected by hepatitis C virus.

... more about:
»Hepatitis »PAK1 »finding »liver

The UTMB scientists reported their findings in the April 20 issue of the Journal of Biological Chemistry. Their article is entitled “P21-activated Kinase 1 Is Activated through the Mammalian Target of Rapamycin/p70 56 Kinase Pathway and Regulates the Replication of Hepatitis C Virus in Human Hepatoma Cells.”

Jim Kelly | EurekAlert!
Further information:
http://www.utmb.edu

Further reports about: Hepatitis PAK1 finding liver

More articles from Life Sciences:

nachricht Single-stranded DNA and RNA origami go live
15.12.2017 | Wyss Institute for Biologically Inspired Engineering at Harvard

nachricht New antbird species discovered in Peru by LSU ornithologists
15.12.2017 | Louisiana State University

All articles from Life Sciences >>>

The most recent press releases about innovation >>>

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

Im Focus: First-of-its-kind chemical oscillator offers new level of molecular control

DNA molecules that follow specific instructions could offer more precise molecular control of synthetic chemical systems, a discovery that opens the door for engineers to create molecular machines with new and complex behaviors.

Researchers have created chemical amplifiers and a chemical oscillator using a systematic method that has the potential to embed sophisticated circuit...

Im Focus: Long-lived storage of a photonic qubit for worldwide teleportation

MPQ scientists achieve long storage times for photonic quantum bits which break the lower bound for direct teleportation in a global quantum network.

Concerning the development of quantum memories for the realization of global quantum networks, scientists of the Quantum Dynamics Division led by Professor...

Im Focus: Electromagnetic water cloak eliminates drag and wake

Detailed calculations show water cloaks are feasible with today's technology

Researchers have developed a water cloaking concept based on electromagnetic forces that could eliminate an object's wake, greatly reducing its drag while...

Im Focus: Scientists channel graphene to understand filtration and ion transport into cells

Tiny pores at a cell's entryway act as miniature bouncers, letting in some electrically charged atoms--ions--but blocking others. Operating as exquisitely sensitive filters, these "ion channels" play a critical role in biological functions such as muscle contraction and the firing of brain cells.

To rapidly transport the right ions through the cell membrane, the tiny channels rely on a complex interplay between the ions and surrounding molecules,...

Im Focus: Towards data storage at the single molecule level

The miniaturization of the current technology of storage media is hindered by fundamental limits of quantum mechanics. A new approach consists in using so-called spin-crossover molecules as the smallest possible storage unit. Similar to normal hard drives, these special molecules can save information via their magnetic state. A research team from Kiel University has now managed to successfully place a new class of spin-crossover molecules onto a surface and to improve the molecule’s storage capacity. The storage density of conventional hard drives could therefore theoretically be increased by more than one hundred fold. The study has been published in the scientific journal Nano Letters.

Over the past few years, the building blocks of storage media have gotten ever smaller. But further miniaturization of the current technology is hindered by...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

Event News

See, understand and experience the work of the future

11.12.2017 | Event News

Innovative strategies to tackle parasitic worms

08.12.2017 | Event News

AKL’18: The opportunities and challenges of digitalization in the laser industry

07.12.2017 | Event News

 
Latest News

Engineers program tiny robots to move, think like insects

15.12.2017 | Power and Electrical Engineering

One in 5 materials chemistry papers may be wrong, study suggests

15.12.2017 | Materials Sciences

New antbird species discovered in Peru by LSU ornithologists

15.12.2017 | Life Sciences

VideoLinks
B2B-VideoLinks
More VideoLinks >>>