Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

Effect of medication is affected by copies of genetic information

11.04.2013
The number of copies of the complete genetic information found in human cells can have a decisive effect on the properties of these cells.

The results may help to explain why certain medications have strong side effects on sperm and eggs, and why certain organisms remain unaffected by environmental changes.

This is shown by studies that researchers from the University of Gothenburg, Sweden, together with researchers from Norway and France, are now publishing in the journal PLoS Genetics.

All cells in our bodies contain copies of the genetic information. However, different cells contain different numbers of the complete genetic information. Normal human cells usually contain two copies of the genetic information, and thus two copies of every gene. Eggs and sperm, however, only contain one set of genes.

“At the same time, the cells of many plants and amphibians contain many more copies of genetic information, and the number of copies can also vary during an organism’s development and between different stages of life,” explains Jonas Warringer, a researcher at the University of Gothenburg’s Department of Chemistry and Molecular Biology.

Research has often overlooked this variation in genetic information. However, Jonas Warringer and his colleagues have now used ordinary baker’s yeast to show that the number of copies of genetic information has a decisive effect on the properties of cells.

Jonas and his colleagues collected yeast samples from around the world and created two variants of each yeast culture – one with two copies of the genetic information, and the other with just one copy. The researchers then examined the properties of these yeast cells, such as their tolerance to cancer medication and antibiotics. The study, which is reported on in the journal PLOS One, shows that the number of copies of genetic information has a decisive effect on the properties of cells.

“The cells with two copies of genetic information showed greater tolerance to some substances,” continues Jonas, “while in other cases those with only one copy had an advantage. Surprisingly enough, these effects were even maintained in species separated by several billions of generations of evolution, suggesting that they are actually of great importance in nature.”

The researchers’ discovery may be of considerable significance in terms of knowledge about what lies behind differences between organisms in nature.

“It may also help to explain why certain medications have particularly strong side effects on sperm and eggs whereas others do not, and why certain organisms are affected by some environmental changes while others are unaffected,” he concludes.

Link to article: http://www.plosgenetics.org/doi/pgen.1003388

Contact: Jonas Warringer, Department of Chemistry and Molecular Biology
Tel.: +46 (0)31 786 3961, E-mail: jonas.warringer@cmb.gu.se
Mobile: +46 (0)730226322

Annika Koldenius | idw
Further information:
http://www.gu.se
http://www.plosgenetics.org/doi/pgen.1003388

More articles from Life Sciences:

nachricht How molecules teeter in a laser field
18.01.2019 | Forschungsverbund Berlin

nachricht Discovery of enhanced bone growth could lead to new treatments for osteoporosis
18.01.2019 | University of California - Los Angeles

All articles from Life Sciences >>>

The most recent press releases about innovation >>>

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

Im Focus: Ten-year anniversary of the Neumayer Station III

The scientific and political community alike stress the importance of German Antarctic research

Joint Press Release from the BMBF and AWI

The Antarctic is a frigid continent south of the Antarctic Circle, where researchers are the only inhabitants. Despite the hostile conditions, here the Alfred...

Im Focus: Ultra ultrasound to transform new tech

World first experiments on sensor that may revolutionise everything from medical devices to unmanned vehicles

The new sensor - capable of detecting vibrations of living cells - may revolutionise everything from medical devices to unmanned vehicles.

Im Focus: Flying Optical Cats for Quantum Communication

Dead and alive at the same time? Researchers at the Max Planck Institute of Quantum Optics have implemented Erwin Schrödinger’s paradoxical gedanken experiment employing an entangled atom-light state.

In 1935 Erwin Schrödinger formulated a thought experiment designed to capture the paradoxical nature of quantum physics. The crucial element of this gedanken...

Im Focus: Nanocellulose for novel implants: Ears from the 3D-printer

Cellulose obtained from wood has amazing material properties. Empa researchers are now equipping the biodegradable material with additional functionalities to produce implants for cartilage diseases using 3D printing.

It all starts with an ear. Empa researcher Michael Hausmann removes the object shaped like a human ear from the 3D printer and explains:

Im Focus: Elucidating the Atomic Mechanism of Superlubricity

The phenomenon of so-called superlubricity is known, but so far the explanation at the atomic level has been missing: for example, how does extremely low friction occur in bearings? Researchers from the Fraunhofer Institutes IWM and IWS jointly deciphered a universal mechanism of superlubricity for certain diamond-like carbon layers in combination with organic lubricants. Based on this knowledge, it is now possible to formulate design rules for supra lubricating layer-lubricant combinations. The results are presented in an article in Nature Communications, volume 10.

One of the most important prerequisites for sustainable and environmentally friendly mobility is minimizing friction. Research and industry have been dedicated...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

VideoLinks
Industry & Economy
Event News

Our digital society in 2040

16.01.2019 | Event News

11th International Symposium: “Advanced Battery Power – Kraftwerk Batterie” Aachen, 3-4 April 2019

14.01.2019 | Event News

ICTM Conference 2019: Digitization emerges as an engineering trend for turbomachinery construction

12.12.2018 | Event News

 
Latest News

Additive manufacturing reflects fundamental metallurgical principles to create materials

18.01.2019 | Materials Sciences

How molecules teeter in a laser field

18.01.2019 | Life Sciences

The cytoskeleton of neurons has been found to be involved in Alzheimer's disease

18.01.2019 | Health and Medicine

VideoLinks
Science & Research
Overview of more VideoLinks >>>