Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

Breakthrough could help sufferers of fatal lung disease

15.10.2012
Pioneering research conducted by the University of Sheffield is paving the way for new treatments which could benefit patients suffering from the fatal lung disease pulmonary arterial hypertension (PAH).

For the first time scientists have found an antibody treatment that not only stops PAH getting worse, but also reverses the condition in mice and rats. The research was funded by the British Heart Foundation and the Medical Research Council (MRC) and is published in the Journal of Experimental Medicine.

PAH – high pressure in the blood vessels supplying the lungs – is a devastating condition that affects almost 2,200 adults in England and Wales. It is caused by changes in the cells lining the arteries that take blood from the heart to the lungs (a process called vascular remodelling).

Vascular remodelling causes the walls of the vessels to become stiff and thickened making it harder for blood to flow through them, which in turn causes an elevation in blood pressure. This increased pressure places significant strain on the right side of the heart, which can lead to fatal heart failure if left untreated. PAH often affects young people, and more commonly women.

Current treatments for PAH target the constriction of the arteries, but fail to fully reverse the underlying vascular remodelling. The researchers demonstrated that a protein called TRAIL (tumour necrosis factor-related apoptosis-inducing ligand) worsened the progression of PAH in animal models, but blocking TRAIL with an antibody improved the disease.

Dr Allan Lawrie, a MRC Career Development Fellow from the University of Sheffield's Department of Cardiovascular Science, who led the study, said: "This research opens up a new insight into the mechanisms of PAH and suggests that TRAIL is critical to this process. If we can interrupt this process by blocking the TRAIL pathway, we have the potential to stop the disease in its tracks and even reverse the damage already done."

Since the discovery of TRAIL and its network of receptors, the majority of attention has focused on the clinical potential of manipulating this pathway in cancer therapy. However new research suggests that TRAIL plays broader roles in regulating immune processes, with this latest study suggesting it is critical to PAH.

"These data, from animal models, provide validation and we are now actively pursuing a route to develop human antibodies as a potential new treatment for PAH, though this is likely to be several years from the clinic," said Dr Lawrie.

Dr Shannon Amoils, Research Advisor at the British Heart Foundation (BHF), which co-funded the study, said:

"We urgently need to find new treatments for people with pulmonary arterial hypertension, a condition which can have a devastating effect on people's quality of life and is often fatal. This study shows that a protein called TRAIL plays a role in the disease by driving the overproduction of cells lining the lungs' blood vessels. This overproduction of cells is one of the factors leading to high blood pressure in the lungs.

"Importantly, the researchers show that in rodents, blocking TRAIL using an antibody dampens down this high cell turnover and reduces the disease severity. There is still a long way to go, but the hope is that the TRAIL antibody might be developed into a new treatment for patients in the future."

The research was conducted in collaboration with colleagues at the University of Cambridge, Imperial College London, the University of East Anglia, Sheffield Pulmonary Vascular Disease Unit and the National Institute for Health Research Cardiovascular Biomedical Research Unit.

Notes for Editors

Medical Research Council

For almost 100 years the Medical Research Council has improved the health of people in the UK and around the world by supporting the highest quality science. The MRC invests in world-class scientists. It has produced 29 Nobel Prize winners and sustains a flourishing environment for internationally recognised research. The MRC focuses on making an impact and provides the financial muscle and scientific expertise behind medical breakthroughs, including one of the first antibiotics penicillin, the structure of DNA and the lethal link between smoking and cancer. Today MRC funded scientists tackle research into the major health challenges of the 21st century. www.mrc.ac.uk

The University of Sheffield
With nearly 25,000 students from 125 countries, the University of Sheffield is one of the UK's leading and largest universities. A member of the Russell Group, it has a reputation for world-class teaching and research excellence across a wide range of disciplines.

The University of Sheffield has been named University of the Year in the Times Higher Education Awards for its exceptional performance in research, teaching, access and business performance. In addition, the University has won four Queen's Anniversary Prizes (1998, 2000, 2002, 2007). These prestigious awards recognise outstanding contributions by universities and colleges to the United Kingdom's intellectual, economic, cultural and social life. Sheffield also boasts five Nobel Prize winners among former staff and students and many of its alumni have gone on to hold positions of great responsibility and influence around the world.

The University's research partners and clients include Boeing, Rolls-Royce, Unilever, Boots, AstraZeneca, GSK, ICI, Slazenger, and many more household names, as well as UK and overseas government agencies and charitable foundations.

The University has well-established partnerships with a number of universities and major corporations, both in the UK and abroad. Its partnership with Leeds and York Universities in the White Rose Consortium has a combined research power greater than that of either Oxford or Cambridge.

For further information, please visit www.sheffield.ac.uk
The British Heart Foundation
The British Heart Foundation (BHF) is the nation's heart charity, dedicated to saving lives through pioneering research, patient care, campaigning for change and by providing vital information. But we urgently need help. We rely on donations of time and money to continue our life-saving work. Because together we can beat heart disease.

For more information visit: www.bhf.org.uk/pressoffice.

For further information please contact: Amy Pullan, Media Relations Officer, on 0114 222 9859 or email a.l.pullan@sheffield.ac.uk

To read other news releases about the University of Sheffield, visit: http://www.shef.ac.uk/news

Amy Pullan | EurekAlert!
Further information:
http://www.sheffield.ac.uk

More articles from Health and Medicine:

nachricht Unique brain 'fingerprint' can predict drug effectiveness
11.07.2018 | McGill University

nachricht Direct conversion of non-neuronal cells into nerve cells
03.07.2018 | Universitätsmedizin der Johannes Gutenberg-Universität Mainz

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 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

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

13.07.2018 | Event News

Research finds new molecular structures in boron-based nanoclusters

13.07.2018 | Materials Sciences

Algae Have Land Genes

13.07.2018 | Life Sciences

VideoLinks
Science & Research
Overview of more VideoLinks >>>