Featured Research

from universities, journals, and other organizations

Discovery of new muscle repair gene

Date:
November 20, 2011
Source:
University of Leeds
Summary:
Scientists have discovered more about the function of muscle stem cells, thanks to next-generation DNA sequencing techniques.

An international team of researchers from Leeds, London and Berlin has discovered more about the function of muscle stem cells, thanks to next-generation DNA sequencing techniques.

The work, which was co-led from the University of Leeds' School of Medicine and the Charité, Berlin, is published this week in the journal Nature Genetics.

The researchers investigated several families whose children suffered from a progressive muscle disease. The children developed severe weakness of the body's muscles and the diaphragm -- the main breathing muscle -- making them dependent on a wheelchair and continuous mechanical ventilation. The children also had to be tube-fed because the esophagus -- a muscular tube that transports food from the mouth down into the stomach -- did not work properly.

Using state-of the-art, next generation DNA sequencing technology, the scientists initially found a defect in the MEGF10 gene for a large family living in the UK. Further work found mutations in families with a similar condition from Europe and Asia.

Their work means that accurate genetic testing and diagnosis will now be possible for this devastating condition.

The MEGF10 gene normally plays an important function in muscle stem cells. These are also called 'satellite cells', because they are attached to the outer surface of the muscle fibres, where they normally remain silent. If a muscle fibre becomes damaged, the satellite cells become active, start to divide and then fuse with the muscle fibre. MEGF10 has an important role in this fusion process because it provides the 'gluey' surface for the attachment of the satellite cell.

Since body muscles make up about 40% of our weight and are the largest organ in the body, the muscles need to be maintained during normal life. MEGF10 also has a role in this regeneration process; failure causes progressive muscle weakness in not only muscles of the body and limbs but also the muscle cells that can be found in the internal organs.

The project's joint directors, Professor Markus Schuelke from the NeuroCure Clinical Research Center and the Department of Neuropediatrics of the Charité, and Professor Colin A. Johnson from the Leeds Institute of Molecular Medicine, University Leeds, emphasized the relevance of the new methods for genomic analysis.

"These methods enable us to sequence hundreds or even thousands of genes at the same time for an affordable price. This enables clinicians and researchers to discover novel genetic defects even in single patients. This is good news for families with unsolved rare genetic disorders. Many affected patients and their parents, who often have a "diagnostic Odyssey" behind them, may now hope that the cause of their disease will be found in the near future," they said.


Story Source:

The above story is based on materials provided by University of Leeds. Note: Materials may be edited for content and length.


Journal Reference:

  1. Clare V Logan, Barbara Lucke, Caroline Pottinger, Zakia A Abdelhamed, David A Parry, Katarzyna Szymanska, Christine P Diggle, Anne van Riesen, Joanne E Morgan, Grace Markham, Ian Ellis, Adnan Y Manzur, Alexander F Markham, Mike Shires, Tim Helliwell, Mariacristina Scoto, Christoph Hübner, David T Bonthron, Graham R Taylor, Eamonn Sheridan, Francesco Muntoni, Ian M Carr, Markus Schuelke, Colin A Johnson. Mutations in MEGF10, a regulator of satellite cell myogenesis, cause early onset myopathy, areflexia, respiratory distress and dysphagia (EMARDD). Nature Genetics, 2011; 43 (12): 1189 DOI: 10.1038/ng.995

Cite This Page:

University of Leeds. "Discovery of new muscle repair gene." ScienceDaily. ScienceDaily, 20 November 2011. <www.sciencedaily.com/releases/2011/11/111120134755.htm>.
University of Leeds. (2011, November 20). Discovery of new muscle repair gene. ScienceDaily. Retrieved July 24, 2014 from www.sciencedaily.com/releases/2011/11/111120134755.htm
University of Leeds. "Discovery of new muscle repair gene." ScienceDaily. www.sciencedaily.com/releases/2011/11/111120134755.htm (accessed July 24, 2014).

Share This




More Health & Medicine News

Thursday, July 24, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Idaho Boy Helps Brother With Disabilities Complete Triathlon

Idaho Boy Helps Brother With Disabilities Complete Triathlon

Newsy (July 23, 2014) — An 8-year-old boy helped his younger brother, who has a rare genetic condition that's confined him to a wheelchair, finish a triathlon. Video provided by Newsy
Powered by NewsLook.com
Thousands Who Can't Afford Medical Care Flock to Free US Clinic

Thousands Who Can't Afford Medical Care Flock to Free US Clinic

AFP (July 23, 2014) — America may be the world’s richest country, but in terms of healthcare, the World Health Organisation ranks it 37th. Thousands turned out for a free clinic run by "Remote Area Medical" with a visit from the Governor of Virginia. Duration: 2:40 Video provided by AFP
Powered by NewsLook.com
Stone Fruit Listeria Scare Causes Sweeping Recall

Stone Fruit Listeria Scare Causes Sweeping Recall

Newsy (July 22, 2014) — The Wawona Packing Company has issued a voluntary recall on the stone fruit it distributes due to a possible Listeria outbreak. Video provided by Newsy
Powered by NewsLook.com
Huge Schizophrenia Study Finds Dozens Of New Genetic Causes

Huge Schizophrenia Study Finds Dozens Of New Genetic Causes

Newsy (July 22, 2014) — The 83 new genetic markers could open dozens of new avenues for schizophrenia treatment research. Video provided by Newsy
Powered by NewsLook.com

Search ScienceDaily

Number of stories in archives: 140,361

Find with keyword(s):
 
Enter a keyword or phrase to search ScienceDaily for related topics and research stories.

Save/Print:
Share:  

Breaking News:

More Coverage


Discovery of a New Muscle Repair Gene

Nov. 23, 2011 — Scientists have presented new findings regarding the function of muscle stem cells. Researchers investigated several families with children suffering from a progressive muscle disease. Using a ... read more
from the past week

In Other News

... from NewsDaily.com

Science News

Health News

Environment News

Technology News



Save/Print:
Share:  

Free Subscriptions


Get the latest science news with ScienceDaily's free email newsletters, updated daily and weekly. Or view hourly updated newsfeeds in your RSS reader:

Get Social & Mobile


Keep up to date with the latest news from ScienceDaily via social networks and mobile apps:

Have Feedback?


Tell us what you think of ScienceDaily -- we welcome both positive and negative comments. Have any problems using the site? Questions?
Mobile iPhone Android Web
Follow Facebook Twitter Google+
Subscribe RSS Feeds Email Newsletters
Latest Headlines Health & Medicine Mind & Brain Space & Time Matter & Energy Computers & Math Plants & Animals Earth & Climate Fossils & Ruins