Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

Swedish researchers’ discovery promises unique medicine for treatment of chronic and diabetic wounds

29.05.2012
A unique new medicine that can start and hasten healing of diabetic and other chronic sores is being developed at Umeå University in Sweden. After several years of successful experimental research, it is now ready for clinical testing.

Behind this new medicine is a group of researchers at the Department of Medical Chemistry and Biophysics who have made the unique finding that the protein plasminogen is a regulator that initiates and hastens wound healing by triggering the inflammatory reaction. Their discovery is now being published in the highly ranked journal Blood.

“Today we have the knowledge needed to develop a medicine,” says Professor Tor Ny, one of the authors of the article. “The bulk of the preclinical research has been completed, and we have been in contact with the Medical Products Agency to discuss a program for clinical testing.”

Plasminogen is a well-known plasma protein that is produced in the liver and found in all bodily fluids. The Umeå researchers have re-evaluated its role and managed to show that the concentration of plasminogen increases dramatically in and around wounds, which is an important signal to start the inflammatory reaction required for healing. In diabetic sores the level of plasminogen does not rise in the same way, and this seems to be the reason why these sores do not heal. In mice and rats the researchers were able to show that the healing process starts immediately when plasminogen is injected into the sore, which then heals fully.

A cell line for producing plasminogen on a larger scale has also been developed, and the goal is to be able to start clinical testing as soon as funding can be arranged. The researchers have high hopes, as plasminogen is an endogenous substance that can be assumed not to produce side effects.

The need for a biological pharmaceutical for treating intractable wounds is pressing indeed. Diabetic sores that heal poorly or not at all are the most severe type of chronic sores, affecting millions of people annually. Many of the roughly 350 million diabetes patients in the world develop foot ulcers, and in 10-15 million cases this ultimately leads to amputation. Today’s treatment of diabetic ulcers consists primarily of traditional wound care, with compresses and bandages; there is no effective medication.

The Umeå researchers are initially concentrating on diabetic wounds, but the medicine has great potential for working on other types of stubborn sores. This includes damaged eardrums and periodontitis. The new pharmaceutical has moreover been shown to be helpful in combatting antibiotic-resistant bacteria (MRSA).

Reference
Yue Shen, Yongzhi Guo, Peter Mikus, Rima Sulniute, Malgorzata Wilczynska, Tor Ny, Jinan Li: Plasminogen is a key proinflammatory regulator that accelerates the healing of acute and diabetic wounds Blood. 2012 May 4. [Epub ahead of print]

For more information, please contact Professor Tor Ny: mobile: +46 (0)73-620 50 65; e-mail tor.ny@medchem.umu.se

Hans Fällman | idw
Further information:
http://www.umu.se
http://www.vr.se

More articles from Health and Medicine:

nachricht Nanoparticles as a Solution against Antibiotic Resistance?
15.12.2017 | Friedrich-Schiller-Universität Jena

nachricht Plasmonic biosensors enable development of new easy-to-use health tests
14.12.2017 | Aalto University

All articles from Health and Medicine >>>

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 >>>