Navigation Links
'Bubble Boy' Kids Living Normally After Gene Therapy: Study
Date:8/24/2011

By Amanda Gardner
HealthDay Reporter

WEDNESDAY, Aug. 24 (HealthDay News) -- More than a dozen children with so-called "bubble boy" disease are alive and well, with functioning immune systems, nine years after undergoing gene therapy to correct their disorder, researchers report.

Most of the patients attend school with other children, something that probably would have been fatal without treatment.

"The promise of gene therapy is being fulfilled, at least for these diseases, where a number of patients are walking around in good health because they had gene therapy," said Dr. Donald Kohn, professor of microbiology, immunology and molecular genetics and pediatrics at the University of California, Los Angeles.

The disorder -- severe combined immunodeficiency (SCID) -- compromises the immune system so severely that children can't fight off normally innocuous infections. The condition is rare, and the term "bubble boy" was coined after a Texas boy with the condition lived in a germ-free plastic bubble.

Only boys inherit the gene in question, and many born with SCID die in infancy.

Two studies published Aug. 24 in Science Translational Medicine detail the results of the gene-modifying treatment. Kohn wrote a perspective piece accompanying the studies.

Traditionally, the only treatment for SCID was stem cell transplantation in which immune cells from a matching donor are transferred to the patient. But it's difficult to find matching donors and, even then, the patient's body may reject the transplanted cells.

With gene therapy, clinicians remove the patient's own bone marrow, isolate the stem cells, correct the gene and reinsert it into the patient, explained William J. Bowers, associate professor of neurology at the University of Rochester Medical Center in Rochester, N.Y.

The two current papers detail the success of gene therapy in two groups of patients: 10 boys with X-linked SCID (SCID-X1); and six with ADA-SCID, which involves a slightly different gene mutation. All were between 6 months and 39 months old.

Gene therapy successfully treated four of the six ADA-SCID patients.

All the SCID-X1 children recovered, although one developed leukemia. That boy is currently in remission, but leukemia has been a problem with previous gene therapy trials.

Last year, French researchers reported that eight of nine male infants born with SCID-X1 had recovered as a result of gene therapy. Unfortunately, almost half developed acute leukemia, one of whom died.

The virus vector used in this earlier trial inadvertently activated an oncogene, which led to the development of the leukemia, researchers said.

The latest research circumvented this problem by using a different virus vector.

"A cloud was thrown over the field several years ago and they've solved it nicely," said Dr. Darwin Prockop, director of the Texas A&M Health Science Center College of Medicine Institute for Regenerative Medicine at Scott & White in Temple, Texas. "Very probably this can be used for other genetic diseases."

"This field came on with huge promise, then hit a few bumps and now . . . we're starting to see more and more of these successes," added Bowers.

More information

The U.S. National Human Genome Research Institute has more on SCID.

SOURCES: Donald B. Kohn, M.D., professor, microbiology, immunology and molecular genetics and pediatrics, University of California, Los Angeles; William J. Bowers, Ph.D., associate professor, neurology, University of Rochester Medical Center, Rochester, N.Y.; Darwin J. Prockop, M.D., Ph.D., director, Texas A&M Health Science Center College of Medicine Institute for Regenerative Medicine at Scott & White, Temple, Texas; Aug. 24, 2011, Science Translational Medicine


'/>"/>
Copyright©2010 ScoutNews,LLC.
All rights reserved  

Related medicine news :

1. Microbubbles to light the way to sentinel lymph nodes of breast cancer patients
2. Microbubble ultrasound and breast biopsies
3. Bursting bubbles with sound offers new treatments for cancer
4. Baby Bubbler a breath of fresh air
5. Gene Therapy Might Treat Bubble Boy Disease
6. The Acorn Aqua's Lead Free Bubbler
7. The proofs in the bubbles
8. New TB vaccine enters proof-of-concept trial in people living with HIV
9. Minimal scar techniques in living donors for kidney transplant
10. Genes, Not Healthy Living, Get Most to Age 100
11. Americans No Longer Outliving Europeans: Study
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
 'Bubble Boy' Kids Living Normally After Gene Therapy: Study
(Date:4/30/2016)... Cambridge, MA (PRWEB) , ... April 30, 2016 ... ... non-profit organization, today announced RANKED Health , a program to critically evaluate ... A major goal of the program is to provide independent, unbiased and accurate ...
(Date:4/30/2016)... Indianapolis, Indiana (PRWEB) , ... April 30, 2016 , ... ... USA Wrestling as they go for gold in Rio. Under the care of ... including two golds! , In an unprecedented showing, Maximized Living is sending the largest ...
(Date:4/29/2016)... ... 29, 2016 , ... Memorial Healthcare System Graduate Medical ... (ACGME) that it has received accreditation for its residency program on Physical Medicine ... that Memorial is currently pursuing, including Pediatrics and Internal Medicine. This accreditation allows ...
(Date:4/29/2016)... CA (PRWEB) , ... April 29, 2016 , ... ... advocating optimistic healthcare awareness and author of best seller "LOVE, MEDICINE and MIRACLES") ... Radio Monday, May 2, 2016 and podcasted thereafter . Dr. Bernie Siegel, ...
(Date:4/29/2016)... ... April 29, 2016 , ... Spine Team Texas, a comprehensive ... to announce one of their physicians has been invited to be a featured speaker ... Family Practice Review conference on April 30, 2016. , Dr. R. Scott McPherson, ...
Breaking Medicine News(10 mins):
(Date:4/29/2016)... , April 29, 2016 Automation ... science laboratory due to the growing demands for productivity ... technology, contemporary automated systems are already adept of a ... slow, tedious and manual labor. Instrumentation continues to evolve, ... even conceivable just a few years ago. Originally used ...
(Date:4/28/2016)... April 28, 2016 ... George Phillips und Stephen Schmidt ... ArisGlobal®, ein führender Anbieter cloudbasierter ... heute bekannt, dass neue Führungskräfte zum Team ... sind, die vielfältige Erfahrungen mitbringen.  Dies wird ...
(Date:4/28/2016)... JERUSALEM , April 28, 2016 ... ), a clinical-stage pharmaceutical company focused on the development of ... participate in the upcoming PIONEERS 2016 conference, presented by ... 5, 2016 in New York . ... overview at the conference. Presentation Details:   ...
Breaking Medicine Technology: