Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

Discovery of regulatory role of key molecule provides further step towards future gene therapy to control disease

16.09.2009
Discovery by Hebrew University of Jerusalem researchers of an additional role for a key molecule in our bodies provides a further step in world-wide efforts to develop genetic regulation aimed at controlling many diseases, including AIDS and various types of cancers.

The molecule, known as Lysyl-tRNA synthetase (or LysRS in brief) is one of the most ancient molecules in the cell, where it has long been recognized for its contribution in the translation of the information contained in RNA into the amino acids that make up proteins. Amino acids are organic compounds which are present in and vital to every living cell.

Now, the Hebrew University scientists have discovered that LysRS plays an important additional role as a central regulator controlling expression of various genes. In this additional role, LysRS ceases its previous function at a certain point and participates in a chain of events that causes the freeing of inhibitors that prevent expression of certain genes.

The researchers say that this research has particularly great importance, since LysRS is known to be involved in diseases such as AIDS and cancers. The virus HIV uses the host's cellular LysRS in the process of replication. High levels of LysRS also have been observed in certain cancers, such as breast cancer. The specific molecular mechanisms in these contexts remain to be discovered.

An ability to understand the regulatory effect played by LysRS in various diseases could make an important contribution to the worldwide search for therapies that would control the “turning on” or “turning off” of specific genes that are operative in those diseases, they emphasize.

This research was performed by doctoral students Nurit Yannay-Cohen and Irit Carmi-Levy within the Department of Biochemistry and Molecular Biology, the Institute for Medical Research - Israel-Canada, at the Hebrew University Faculty of Medicine. The research was done under the guidance of Prof. Ehud Razin, former dean of the faculty, and Dr. Hovav Nechushtan. Their work was published in the journal Molecular Cell.

Jerry Barach | Hebrew University
Further information:
http://www.huji.ac.il

More articles from Life Sciences:

nachricht Seeing on the Quick: New Insights into Active Vision in the Brain
15.08.2018 | Eberhard Karls Universität Tübingen

nachricht New Approach to Treating Chronic Itch
15.08.2018 | Universität Zürich

All articles from Life Sciences >>>

The most recent press releases about innovation >>>

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

Im Focus: Unraveling the nature of 'whistlers' from space in the lab

A new study sheds light on how ultralow frequency radio waves and plasmas interact

Scientists at the University of California, Los Angeles present new research on a curious cosmic phenomenon known as "whistlers" -- very low frequency packets...

Im Focus: New interactive machine learning tool makes car designs more aerodynamic

Scientists develop first tool to use machine learning methods to compute flow around interactively designable 3D objects. Tool will be presented at this year’s prestigious SIGGRAPH conference.

When engineers or designers want to test the aerodynamic properties of the newly designed shape of a car, airplane, or other object, they would normally model...

Im Focus: Robots as 'pump attendants': TU Graz develops robot-controlled rapid charging system for e-vehicles

Researchers from TU Graz and their industry partners have unveiled a world first: the prototype of a robot-controlled, high-speed combined charging system (CCS) for electric vehicles that enables series charging of cars in various parking positions.

Global demand for electric vehicles is forecast to rise sharply: by 2025, the number of new vehicle registrations is expected to reach 25 million per year....

Im Focus: The “TRiC” to folding actin

Proteins must be folded correctly to fulfill their molecular functions in cells. Molecular assistants called chaperones help proteins exploit their inbuilt folding potential and reach the correct three-dimensional structure. Researchers at the Max Planck Institute of Biochemistry (MPIB) have demonstrated that actin, the most abundant protein in higher developed cells, does not have the inbuilt potential to fold and instead requires special assistance to fold into its active state. The chaperone TRiC uses a previously undescribed mechanism to perform actin folding. The study was recently published in the journal Cell.

Actin is the most abundant protein in highly developed cells and has diverse functions in processes like cell stabilization, cell division and muscle...

Im Focus: Lining up surprising behaviors of superconductor with one of the world's strongest magnets

Scientists have discovered that the electrical resistance of a copper-oxide compound depends on the magnetic field in a very unusual way -- a finding that could help direct the search for materials that can perfectly conduct electricity at room temperatur

What happens when really powerful magnets--capable of producing magnetic fields nearly two million times stronger than Earth's--are applied to materials that...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

VideoLinks
Industry & Economy
Event News

Within reach of the Universe

08.08.2018 | Event News

A journey through the history of microscopy – new exhibition opens at the MDC

27.07.2018 | Event News

2018 Work Research Conference

25.07.2018 | Event News

 
Latest News

Unraveling the nature of 'whistlers' from space in the lab

15.08.2018 | Physics and Astronomy

Diving robots find Antarctic winter seas exhale surprising amounts of carbon dioxide

15.08.2018 | Earth Sciences

Early opaque universe linked to galaxy scarcity

15.08.2018 | Physics and Astronomy

VideoLinks
Science & Research
Overview of more VideoLinks >>>