Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

HATS off to combat asthma

05.12.2007
Two University of Nottingham studies exploring the causes and treatment of asthma and Chronic Obstructive Pulmonary Disease (COPD) could lead to the development of drugs to battle these debilitating conditions.

The Division of Respiratory Medicine at the University has been awarded a total of £1.24m in grants to study respiratory disease. The Wellcome Trust has awarded Prof Alan Knox and Dr Linhua Pang £700,000 to research transcriptional control of inflammatory gene expression in asthma — allowing the team to examine the part inflammatory mediators play in the way asthma sufferers react to allergens.

A second grant of £540,000 from MRC to Prof Knox and his colleagues Prof Peter Fischer and Prof David Heery will explore histone acetyl transferase (HAT) inhibitors in asthma and COPD. This study will investigate a bank of plant extracts at the University of Strathclyde, seeking compounds that could combat the intercellular processes that result in the symptoms of asthma and COPD — inflammation of the airways which can lead to coughing, breathlessness and increased chest infections.

Though they are different diseases, asthma and COPD affect the human body in a similar way. In asthma, allergens irritate the lungs, in COPD, this is done by cigarette smoke. This irritation inflames the sufferer’s airways, which the muscles then close, creating a narrowing effect.

Research done at the University over the past 15 years has found that the muscle layer in the airway is more complex than has traditionally been thought. As well as going into spasm during asthma and COPD attacks the muscle layer produces a wide range of mediators and cytokines — proteins that act as chemical signallers when it comes into contact with allergens or cigarette smoke. In asthma and COPD sufferers, these proteins are produced by stimulation of airway muscle cell walls in the lungs, releasing intracellular signalling proteins called ‘transcription factors’ which alter the DNA of the cell and activate messenger RNA. It is these ‘transcription factors’ which activate the inflammation by causing release of mediators and cytokines.

The activation status of these transcription factors is determined by the balance between two competing groups of enzymes called histone acetyl transferase (HATs) and histone deacetylases (HDACs). In asthma and COPD sufferers the balance is altered so that the HATs are activated and HDACs suppressed with the result that inflammation is switched on. The investigators at the University think that if the balance could be restored by inactivating HATs then the mediators and cytokines will be switched off and inflammation dampened down.

By exploring plant extracts that may reduce the activation of HATs within airway cells, the researchers may isolate compounds that could be used to suppress inflammation in respiratory disease. Any drug successfully synthesised from such compounds could potentially revolutionise the treatment of respiratory disease. There is also the potential to treat other inflammatory diseases, such as rheumatoid arthritis and Inflammatory Bowel Disease.

Professor Alan Knox, of the Division of Respiratory Medicine at the University, said: “The majority of people with asthma have access to reasonably good anti-inflammatory treatments that can keep their conditions under control. But up to 20 per cent of sufferers don’t respond well to the treatments currently available. And when it comes to COPD, anti-inflammatory drugs aren’t very effective.

“By tracking the process which triggers the inflammation and then identifying the compounds that inhibit or activate these crucial enzymes, we could put into motion the development of a drug which could have a huge impact on the lives of those suffering from respiratory and other inflammatory diseases.”

Emma Thorne | alfa
Further information:
http://www.nottingham.ac.uk

Further reports about: COPD HAT Respiratory Treatment compounds inflammation inflammatory sufferers

More articles from Life Sciences:

nachricht Cancer diagnosis: no more needles?
25.05.2018 | Christian-Albrechts-Universität zu Kiel

nachricht Less is more? Gene switch for healthy aging found
25.05.2018 | Leibniz-Institut für Alternsforschung - Fritz-Lipmann-Institut e.V. (FLI)

All articles from Life Sciences >>>

The most recent press releases about innovation >>>

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

Im Focus: Powerful IT security for the car of the future – research alliance develops new approaches

The more electronics steer, accelerate and brake cars, the more important it is to protect them against cyber-attacks. That is why 15 partners from industry and academia will work together over the next three years on new approaches to IT security in self-driving cars. The joint project goes by the name Security For Connected, Autonomous Cars (SecForCARs) and has funding of €7.2 million from the German Federal Ministry of Education and Research. Infineon is leading the project.

Vehicles already offer diverse communication interfaces and more and more automated functions, such as distance and lane-keeping assist systems. At the same...

Im Focus: Molecular switch will facilitate the development of pioneering electro-optical devices

A research team led by physicists at the Technical University of Munich (TUM) has developed molecular nanoswitches that can be toggled between two structurally different states using an applied voltage. They can serve as the basis for a pioneering class of devices that could replace silicon-based components with organic molecules.

The development of new electronic technologies drives the incessant reduction of functional component sizes. In the context of an international collaborative...

Im Focus: LZH showcases laser material processing of tomorrow at the LASYS 2018

At the LASYS 2018, from June 5th to 7th, the Laser Zentrum Hannover e.V. (LZH) will be showcasing processes for the laser material processing of tomorrow in hall 4 at stand 4E75. With blown bomb shells the LZH will present first results of a research project on civil security.

At this year's LASYS, the LZH will exhibit light-based processes such as cutting, welding, ablation and structuring as well as additive manufacturing for...

Im Focus: Self-illuminating pixels for a new display generation

There are videos on the internet that can make one marvel at technology. For example, a smartphone is casually bent around the arm or a thin-film display is rolled in all directions and with almost every diameter. From the user's point of view, this looks fantastic. From a professional point of view, however, the question arises: Is that already possible?

At Display Week 2018, scientists from the Fraunhofer Institute for Applied Polymer Research IAP will be demonstrating today’s technological possibilities and...

Im Focus: Explanation for puzzling quantum oscillations has been found

So-called quantum many-body scars allow quantum systems to stay out of equilibrium much longer, explaining experiment | Study published in Nature Physics

Recently, researchers from Harvard and MIT succeeded in trapping a record 53 atoms and individually controlling their quantum state, realizing what is called a...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

VideoLinks
Industry & Economy
Event News

In focus: Climate adapted plants

25.05.2018 | Event News

Save the date: Forum European Neuroscience – 07-11 July 2018 in Berlin, Germany

02.05.2018 | Event News

Invitation to the upcoming "Current Topics in Bioinformatics: Big Data in Genomics and Medicine"

13.04.2018 | Event News

 
Latest News

In focus: Climate adapted plants

25.05.2018 | Event News

Flow probes from the 3D printer

25.05.2018 | Machine Engineering

Less is more? Gene switch for healthy aging found

25.05.2018 | Life Sciences

VideoLinks
Science & Research
Overview of more VideoLinks >>>