Navigation Links
Embryonic Stem Cells Create Healthy Muscle in Mice
Date:1/20/2008

Scientific feat could lead to new treatment for muscular dystrophy, experts say

SUNDAY, Jan. 20 (HealthDay News) -- Researchers have coaxed embryonic mouse stem cells to grow into healthy muscle tissue, in a feat that creates new possibilities for the treatment of Duchenne muscular dystrophy (DMD).

DMD is the most common of nine types of muscular dystrophy, which is characterized by a lack of the protein dystrophin in voluntary muscles, such as those in the arms and legs. Dystrophin plays a key role in building and repairing muscle; without it, muscles deteriorate and lose function.

The University of Texas Southwestern Medical Center team focused on developing embryonic stem cells containing the gene Pax3, which triggers cells to grow into muscle tissue that will produce dystrophin.

"Embryonic stem cells can make every tissue in the body. We instructed these cells to make more skeletal muscle, and from a crowd of cells," explained study author Rita Perlingeiro. "We found a way to pull out only the ones destined to make muscle. These two steps combined resulted in a cell population capable of making muscle in a mouse with muscular dystrophy and, very importantly, the new muscle is stronger."

This is one of the few studies to test the ability of embryonic stem cells to grow in adult muscle tissue, the researchers added. The method they used also managed to avoid the risk of tumor formation in the mice.

One expert lauded the study, which appears in the Jan. 20 online issue of Nature Medicine, as a strong first step.

"By way of experiments done with mice, the paper offers a compelling 'proof of principle,' that embryonic stem cells can be turned into muscle-producing cells in the laboratory and used to deliver healthy muscle to people with Duchenne muscular dystrophy," said Paul Muhlrad, research program coordinator for the Muscular Dystrophy Association.

The researchers noted it was only necessary to regenerate a portion of the muscle tissue for the mice to regain some control. However, the process requires refining before it can be tried in humans, they added.

"At the present time, no one has yet demonstrated that genetic manipulation of human embryonic stem cells can be used to derive functional skeletal muscle progenitors from these cells, so it's far too early to tell whether this technique could lead to any potential clinical application," said Perlingeiro. "The main hurdle is to make sure we can indeed combine successfully these two approaches, and test these cells exhaustively in mouse models before we think about clinical trials."

Muhlrad also cautioned that this research is a long way from human use.

"While mice provide an excellent model system, experiments that work in mice don't always readily transfer to humans. Scientists would probably want to replicate the experiments in dog models of muscular dystrophy before moving on to human studies," Muhlrad said. Additionally, the mice had to take immunosuppressants to prevent their bodies from rejecting cells from another mouse. The ideal approach would be to use a body's own stem cells to avoid the issue of rejection.

More information

To learn more about the different types of muscular dystrophy, visit the Muscular Dystrophy Association.



SOURCES: Paul Muhlrad, Ph.D., research program coordinator, Muscular Dystrophy Association, Tucson, Ariz.; Rita Perlingeiro, Ph.D., assistant professor, developmental biology and molecular biology, Department of Developmental Biology, University of Texas Southwestern Medical Center at Dallas; Jan. 20, 2008, Nature Medicine online


'/>"/>
Copyright©2008 ScoutNews,LLC.
All rights reserved  

Related medicine news :

1. Human embryonic stem cell lines created that avoid immune rejection
2. UC Davis researchers find evidence of mature heart cell potential in embryonic stem cells
3. Serum carcinoembryonic antigen level can reflect adrenal adenoma
4. Study Probes Difference Between Embryonic, Adult Stem Cells
5. Stem cells in adult testes provide alternative to embryonic stem cells for organ regeneration
6. Embryonic stem cells thrive when shaken
7. Embryonic stem cells used to grow cartilage
8. Embryonic Human Stem Cells May Help Repair Heart Muscle, Lab Study Shows
9. Embryonic Stem Cells Repair Human Heart
10. Cancer stem cell marker also drives transcription in normal cells
11. Researchers Hone in on Cancer Stem Cells for Melanoma
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Embryonic Stem Cells Create Healthy Muscle in Mice
(Date:10/13/2017)... ... ... The American Board of Family Medicine's (ABFM) Board of Directors has selected Warren ... James C. Puffer upon his retirement. Dr. Newton will serve in the position of ... end of 2018. Upon assuming the role of President and CEO on January 1, ...
(Date:10/13/2017)... ... October 13, 2017 , ... Apple Rehab Shelton Lakes , ... mock evacuation of the facility as part of a disaster drill on October 3rd. ... EMS and Shelton City Emergency Manager, as well as the Connecticut Long Term ...
(Date:10/13/2017)... ... ... Yisrayl Hawkins, Pastor and Overseer at The House of Yahweh, has released a ... books in the Holy Scriptures, Revelation. The Book of Revelation paints a picture of ... have tossed it off as mere rubbish, but Yisrayl Hawkins says that is because ...
(Date:10/12/2017)... ... October 12, 2017 , ... First ... compliance program management, will showcase a range of technology and learning solutions at ... (NCAL) Convention and Expo to be held October 14–18, 2017 at the Mandalay ...
(Date:10/12/2017)... (PRWEB) , ... October 12, 2017 , ... The American ... Excellence to Carol Friedman, PhD, FACMI, during the Opening Session of AMIA’s Annual Symposium ... 8. , In honor of Morris F. Collen, a pioneer in the field of ...
Breaking Medicine News(10 mins):
(Date:10/2/2017)... , Oct. 2, 2017 Diplomat Pharmacy, Inc. ... Day Software and Consulting, LLC , and named its ... Software, based in Tennessee , will ... Day expands EnvoyHealth,s service offerings for health care partners ... "In an interoperable world, ...
(Date:10/2/2017)... -- Halo Labs announces the European launch of their new low ... MIBio 2017 in Cambridge, U.K on October ... biopharmaceutical samples with unprecedented speed and sensitivity while using far less ... Imaging. ... analysis system ...
(Date:9/28/2017)... -- Cohen Veterans Bioscience and Early Signal Foundation announce ... home sensors for real-time monitoring of patients with trauma-related ... organization focused on disruptive health solutions for rare disorders ... to record and integrate behavioral, cognitive, physiological and contextual ... ...
Breaking Medicine Technology: