Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

Researchers first to map gene that regulates adult stem cell growth

17.01.2007
A new discovery in stem cell research may mean big things for cancer patients in the future. Gary Van Zant, Ph.D., and a research team at the University of Kentucky published their findings today in Nature Genetics, an international scientific journal.

The researchers genetically mapped a stem cell gene and its protein product, Laxetin, and building on that effort, carried the investigation all the way through to the identification of the gene itself. This is the first time such a complete study on a stem cell gene has been carried out.

This particular gene is important because it helps regulate the number of adult stem cells in the body, particularly in bone marrow. Now that it has been identified, researchers hope the gene, along with its protein product Latexin, can be used clinically, such as for ramping up the stem cell count in cancer patients undergoing chemotherapy and bone marrow transplantation.

The researchers agreed that this very process is not only interesting, but important because of its usefulness in a wide variety of future genetics studies.

... more about:
»Latexin »Zant »chemotherapy »marrow »transplant

"We're thinking about cancer in a big way," Van Zant said. "This is a great example of translational research – from the most basic type of genetic research all the way to possible treatments for patients."

One big obstacle chemotherapy patients face is stem cell loss after treatments. This limits the dosage amount and types of chemotherapy that can be given. But if Latexin were used to increase the stem cell count, patients would be able to receive increased doses of chemotherapy and be able to recover more quickly. Increased stem cell counts also would be valuable during bone marrow transplants, where the greatest number of stem cells are desired to help a patient recover from cancer.

Another possible use for Latexin would be to help increase the number of stem cells available in umbilical cord blood, which also is used to transplant healthy stem cells in blood marrow transplants. Currently, stem cell transplants with cord blood can only be used in children because cord blood does not contain enough stem cells for an amount needed to be transplanted into an adult.

The only stem cell population that has been examined for effects of Latexin to date is in bone marrow. Van Zant said it is possible, even probable, that other stem cell populations in tissues such as the liver, skin, pancreas or brain may be similarly affected by Latexin. This could open up new therapeutic strategies such as using stem cells for the treatment of other diseases and conditions such as liver disease, diabetes and central nervous system damage as a result of trauma or stroke.

The researchers also are looking into the possible role the gene plays in transforming healthy stem cells into cancerous ones, such as in leukemia and lymphomas. If the gene does in fact play such a role, it is possible that it also could provide the keys to new therapies.

Van Zant describes his discovery as an elation. He worked on the project for six years with Ying Liang, a former graduate student who is now a postdoctoral fellow at UK. Van Zant said this research and publication of the journal article is the culmination of a difficult but rewarding scientific journey.

"We think these findings will have an effect on the broad understanding of the molecular mechanisms that are important to stem cell regulation, including how some stem cells turn cancerous," Van Zant said. "The findings also will help scientists develop effective methods to modulate stem cell numbers and function for therapeutic uses, and also provide a better understanding of the age-related changes that occur in stem cells."

Hollye Staley | EurekAlert!
Further information:
http://www.uky.edu

Further reports about: Latexin Zant chemotherapy marrow transplant

More articles from Life Sciences:

nachricht Scientists uncover the role of a protein in production & survival of myelin-forming cells
19.07.2018 | Advanced Science Research Center, GC/CUNY

nachricht NYSCF researchers develop novel bioengineering technique for personalized bone grafts
18.07.2018 | New York Stem Cell Foundation

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 evidence on the source of extragalactic particles

For the first time ever, scientists have determined the cosmic origin of highest-energy neutrinos. A research group led by IceCube scientist Elisa Resconi, spokesperson of the Collaborative Research Center SFB1258 at the Technical University of Munich (TUM), provides an important piece of evidence that the particles detected by the IceCube neutrino telescope at the South Pole originate from a galaxy four billion light-years away from Earth.

To rule out other origins with certainty, the team led by neutrino physicist Elisa Resconi from the Technical University of Munich and multi-wavelength...

Im Focus: Magnetic vortices: Two independent magnetic skyrmion phases discovered in a single material

For the first time a team of researchers have discovered two different phases of magnetic skyrmions in a single material. Physicists of the Technical Universities of Munich and Dresden and the University of Cologne can now better study and understand the properties of these magnetic structures, which are important for both basic research and applications.

Whirlpools are an everyday experience in a bath tub: When the water is drained a circular vortex is formed. Typically, such whirls are rather stable. Similar...

Im Focus: Breaking the bond: To take part or not?

Physicists working with Roland Wester at the University of Innsbruck have investigated if and how chemical reactions can be influenced by targeted vibrational excitation of the reactants. They were able to demonstrate that excitation with a laser beam does not affect the efficiency of a chemical exchange reaction and that the excited molecular group acts only as a spectator in the reaction.

A frequently used reaction in organic chemistry is nucleophilic substitution. It plays, for example, an important role in in the synthesis of new chemical...

Im Focus: New 2D Spectroscopy Methods

Optical spectroscopy allows investigating the energy structure and dynamic properties of complex quantum systems. Researchers from the University of Würzburg present two new approaches of coherent two-dimensional spectroscopy.

"Put an excitation into the system and observe how it evolves." According to physicist Professor Tobias Brixner, this is the credo of optical spectroscopy....

Im Focus: Chemical reactions in the light of ultrashort X-ray pulses from free-electron lasers

Ultra-short, high-intensity X-ray flashes open the door to the foundations of chemical reactions. Free-electron lasers generate these kinds of pulses, but there is a catch: the pulses vary in duration and energy. An international research team has now presented a solution: Using a ring of 16 detectors and a circularly polarized laser beam, they can determine both factors with attosecond accuracy.

Free-electron lasers (FELs) generate extremely short and intense X-ray flashes. Researchers can use these flashes to resolve structures with diameters on the...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

VideoLinks
Industry & Economy
Event News

Leading experts in Diabetes, Metabolism and Biomedical Engineering discuss Precision Medicine

13.07.2018 | Event News

Conference on Laser Polishing – LaP: Fine Tuning for Surfaces

12.07.2018 | Event News

11th European Wood-based Panel Symposium 2018: Meeting point for the wood-based materials industry

03.07.2018 | Event News

 
Latest News

Global study of world's beaches shows threat to protected areas

19.07.2018 | Earth Sciences

New creepy, crawly search and rescue robot developed at Ben-Gurion U

19.07.2018 | Power and Electrical Engineering

Metal too 'gummy' to cut? Draw on it with a Sharpie or glue stick, science says

19.07.2018 | Materials Sciences

VideoLinks
Science & Research
Overview of more VideoLinks >>>