Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

Obstacles to stem cell therapy cleared

10.06.2010
Researchers at Lund University have come up with a new technique to prevent tumours developing in connection with stem cell transplantations. The results have been published today in the respected scientific journal PNAS.

“When you develop, for example, nerve cells for transplantation, you always get a small contamination of immature stem cells”, explains Johan Jakobsson, head of research group at the Department of Experimental Medical Science.

These immature stem cells can lead to tumours – an unacceptable side-effect.
“We have developed a technique that enables us to eliminate immature stem cells and thus create safer stem cell transplantations.”

The researchers have transplanted the stem cells into mice with Parkinson’s disease. The results are very promising: there are far fewer tumours and the cells that survive are the correct type of nerve cells. The technique uses a specially designed virus.

“We use the virus to genetically modify the cells, which means that we can see which ones we want and which ones we don’t want. You could say that we hijack one of the cell’s gene regulation systems, microRNA. The cell itself tells us when it is mature; it is black when it is immature and turns green when it has completed its development.”

It is relatively simple to isolate, cultivate, preserve and genetically modify stem cells. If transplanted into humans they could replace damaged tissue in the nervous system and support other cells that work to heal a brain injury.

“For us this is a major step. Previously tumours have always developed with this type of transplantation. Now we have shown that this can be avoided”, says Johan Jakobsson.

At Lund University collaborations are underway on stem cell therapy, for example, for Parkinson’s disease, diabetes, stroke, leukaemia and breast cancer. The research community has set the goal of making stem-cell based treatment effective and safe for at least one of the diseases within the next 10 years.

“Our technique could in theory be used for all these diseases”, says Johan Jakobsson. The next step is to conduct experiments on human cell lines.

This project is a collaboration within the Bagadilico research network.

Johan Jakobsson; johan.jakobsson@med.lu.se;
Tel: +46 (0)46 222 42 25; Mobile work: +46 (0)709 28 64 43
Tillbaka

Megan Grindley | idw
Further information:
http://www.pnas.org/content/early/2010/06/03/1006568107.abstract
http://www.med.lu.se/bagadilico

More articles from Life Sciences:

nachricht Repairing damaged hearts with self-healing heart cells
22.08.2017 | National University Health System

nachricht Biochemical 'fingerprints' reveal diabetes progression
22.08.2017 | Umea 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: Fizzy soda water could be key to clean manufacture of flat wonder material: Graphene

Whether you call it effervescent, fizzy, or sparkling, carbonated water is making a comeback as a beverage. Aside from quenching thirst, researchers at the University of Illinois at Urbana-Champaign have discovered a new use for these "bubbly" concoctions that will have major impact on the manufacturer of the world's thinnest, flattest, and one most useful materials -- graphene.

As graphene's popularity grows as an advanced "wonder" material, the speed and quality at which it can be manufactured will be paramount. With that in mind,...

Im Focus: Exotic quantum states made from light: Physicists create optical “wells” for a super-photon

Physicists at the University of Bonn have managed to create optical hollows and more complex patterns into which the light of a Bose-Einstein condensate flows. The creation of such highly low-loss structures for light is a prerequisite for complex light circuits, such as for quantum information processing for a new generation of computers. The researchers are now presenting their results in the journal Nature Photonics.

Light particles (photons) occur as tiny, indivisible portions. Many thousands of these light portions can be merged to form a single super-photon if they are...

Im Focus: Circular RNA linked to brain function

For the first time, scientists have shown that circular RNA is linked to brain function. When a RNA molecule called Cdr1as was deleted from the genome of mice, the animals had problems filtering out unnecessary information – like patients suffering from neuropsychiatric disorders.

While hundreds of circular RNAs (circRNAs) are abundant in mammalian brains, one big question has remained unanswered: What are they actually good for? In the...

Im Focus: RAVAN CubeSat measures Earth's outgoing energy

An experimental small satellite has successfully collected and delivered data on a key measurement for predicting changes in Earth's climate.

The Radiometer Assessment using Vertically Aligned Nanotubes (RAVAN) CubeSat was launched into low-Earth orbit on Nov. 11, 2016, in order to test new...

Im Focus: Scientists shine new light on the “other high temperature superconductor”

A study led by scientists of the Max Planck Institute for the Structure and Dynamics of Matter (MPSD) at the Center for Free-Electron Laser Science in Hamburg presents evidence of the coexistence of superconductivity and “charge-density-waves” in compounds of the poorly-studied family of bismuthates. This observation opens up new perspectives for a deeper understanding of the phenomenon of high-temperature superconductivity, a topic which is at the core of condensed matter research since more than 30 years. The paper by Nicoletti et al has been published in the PNAS.

Since the beginning of the 20th century, superconductivity had been observed in some metals at temperatures only a few degrees above the absolute zero (minus...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

Event News

Call for Papers – ICNFT 2018, 5th International Conference on New Forming Technology

16.08.2017 | Event News

Sustainability is the business model of tomorrow

04.08.2017 | Event News

Clash of Realities 2017: Registration now open. International Conference at TH Köln

26.07.2017 | Event News

 
Latest News

Cholesterol-lowering drugs may fight infectious disease

22.08.2017 | Health and Medicine

Meter-sized single-crystal graphene growth becomes possible

22.08.2017 | Materials Sciences

Repairing damaged hearts with self-healing heart cells

22.08.2017 | Life Sciences

VideoLinks
B2B-VideoLinks
More VideoLinks >>>