NOW:53208:USA01012
http://widgets.journalinteractive.com/cache/JIResponseCacher.ashx?duration=5&url=http%3A%2F%2Fdata.wp.myweather.net%2FeWxII%2F%3Fdata%3D*USA01012
59°
H 81° L 59°
Clear | 9MPH

Enzyme Replacement Therapy Shows Promising Results in X-Linked Myotubular Myopathy

Jan. 24, 2013

A collaborative research team including a Medical College of Wisconsin (MCW) pediatric neuropathologist successfully mitigated some of the effects of a muscular disease by using a new targeted enzyme replacement therapy strategy from 4s3 Bioscience.

The findings are published in the January edition of Human and Molecular Genetics http://hmg.oxfordjournals.org/content/early/2013/01/09/hmg.ddt003.full.pdf+html.

X-linked myotubular myopathy (XLMTM) is a severe muscle disease caused by an absence of a protein called myotubularin. There is currently no treatment for this disorder, and most patients die in infancy or childhood. The overall incidence of myotubular myopathy is 1 in 50,000 live male births.

Michael W. Lawlor, MD, PhD, assistant professor of pathology at MCW, researcher at the Children’s Hospital of Wisconsin Research Institute, and director of the pediatric pathology neuromuscular laboratory in MCW’s division of pediatric pathology, coordinated a study at Boston Children’s Hospital and MCW that used targeted enzyme replacement therapy to deliver myotubularin to muscles of mice with XLMTM. After two weeks of treatment, the mice showed marked improvement in muscle function and pathology.

“These promising findings suggest that even low levels of myotubularin protein replacement can not only improve weakness in patients, but also at least partially reverse the structural abnormalities seen in XLMTM,” said Dr. Lawlor. “The next step is to determine appropriate dosage, and toxicity, before we venture into human trials,” he continued.

The study was supported by the National Institutes of Health, the Muscular Dystrophy Association, the Joshua Frase Foundation, and the Lee and Penny Anderson Family Foundation.

Co-authors of the study are Dustin Armstrong and Michael O’Callaghan from 4s3 Bioscience, Inc.; Marissa Viola, Cynthia P. Hsu, and Alan H. Beggs from Boston Children’s Hospital and Harvard Medical School; Jeffrey J. Widrick from Spaulding Rehabilitation Hospital; Hui Meng from MCW; Robert W. Grange from Virginia Tech; Martin Childers from Wake Forest University; Christopher R. Pierson from Nationwide Children’s Hospital; and Anna Buj-Bello from INSERM.

The efforts of Drs. Armstrong, Beggs, and Lawlor began while Dr. Lawlor was working for Dr. Beggs at Boston Children’s Hospital, and this collaborative effort has continued at Dr. Lawlor’s lab at MCW. As studies progress, Dr. Lawlor will continue to perform pathological analyses on research tissue from preclinical studies with the 4s3 Bioscience replacement enzyme and assist in further elucidating the pathophysiology of XLMTM. This work by Dr. Lawlor’s laboratory utilizes resources partially supported and available through the Children’s Research Institute’s Imaging Core Facility.

This site uses Facebook comments to make it easier for you to contribute. If you see a comment you would like to flag for spam or abuse, click the "x" in the upper right of it. By posting, you agree to our Terms of Use.

Suburban News Roundup

E-mail Newsletter

Your link to the biggest stories in the suburbs delivered Thursday mornings.


Enter your e-mail address above and click "Sign Up Now!" to begin receiving your e-mail newsletter
Get the Newsletter!

Login or Register to manage all your newsletter preferences.

Community Watch

» Wauwatosa School District creates new mobile app 7/25

» Tosa responds to concerns about radiation from water meters 7/25

» Menomonee River 14-year-old drowning victim identified 7/21

» Boy drowns in the Menomonee River at Hoyt Park Updated:  7/19

» Former priest accused of theft again fails to appear in court 7/14

» Police connect teens to recent Milwaukee, Wauwatosa carjackings 7/12

» Briggs & Stratton closing Georgia site, will add 370 jobs in Wauwatosa Updated:  7/10

» Section of I-94 to close entirely July 18-21 7/10

» Wauwatosa man killed in crash that snarled Highway 41 traffic 7/10

» Hundreds in Tosa without power 7/1

» Wauwatosa detective sentenced for drug theft 6/24

» Milwaukee suburbs Fourth of July 2014 celebrations 6/20

» Social media photos of the June 18 storms around Southeast Wisconsin 6/18

» Sewage backups may occur with Wauwatosa sewer at full capacity 6/18

» Corner Bakery coming to Mayfair Collection in Wauwatosa 6/11

» Gunfire leads to police chase in Milwaukee, Wauwatosa 6/11

» Wauwatosa Catholic authorized to become International Baccalaureate World School 6/4

» Waukesha YMCA plans to purchase Wauwatosa site 6/4

» New Milwaukee Bucks owners visit Cranky Al's in Wauwatosa 5/29

» Picnic Basket sandwich shop opens in Wauwatosa 5/22

» State to spend $13.5 million on transit to settle Zoo Interchange suit 5/19

» Gem, mineral and fossil show coming this weekend 5/16

» Malt Shoppe plans to focus on beer, fill growlers in Wauwatosa 5/6

» Mayfair mall gets ready for Nordstrom 5/6

» Thai-namite restaurant looks to move to East Tosa 5/2

View All Posts Got a tip? Welcome rss
Deal Watch - Milwaukee

Milwaukee's Best Discounts & Deals

Local Business Directory

CONNECT