Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

Cheaper, more effective treatment of type 1 Gaucher disease possible

20.10.2010
Researchers at Yale School of Medicine have found that new disease pathways involving more than one cell type leads to Type 1 Gaucher disease, a rare genetic disorder in which fatty substances called glycosphingolipids accumulate in cells, resulting in liver/spleen enlargement, osteoporosis, bone pain, and increased risk of cancer and Parkinson's disease.

The new findings could lead to less expensive and more effective ways to treat the disorder, which affects about 1 in 50,000 people in the general population. Those of Eastern and Central European (Ashkenazi) Jewish heritage are at highest risk for the disease, with 1 in 750 affected. The results are published in the October 18 issue of Proceedings of the National Academy of Sciences.

Treatment for Type 1 Gaucher disease—the type that does not cause a rare and fatal neurodegenerative childhood disease—involves expensive recombinant enzyme infusions every two weeks for life, which on average cost $200,000 per year. Gaucher disease symptoms are unpredictable, even among affected siblings. "In order to tailor treatment to individuals, we need an improved understanding of the disease mechanisms," said senior author of the study, Pramod Mistry, M.D., professor of pediatrics and internal medicine at Yale School of Medicine.

For almost 20 years, investigators around the world have tried and failed to develop mouse models of Type 1 Gaucher disease that replicate the human disease faithfully. Mistry and his team were able to develop a mouse model that replicates all of the features of the human disease.

It was previously thought that the disease affects only one cell type in the body called macrophages. "In our study we show that all cell types are involved and lipids that accumulate trigger abnormal signaling resulting in the malfunction of many cell types," said Mistry. "This helps explain aspects of the disease, such as osteoporosis, cancer risk, and risk of Parkinson's disease, all of which did not respond to macrophage-directed enzyme therapy. With this knowledge, we can look forward to developing treatments that are directed not only to macrophages, but to all cell types involved in the disease process."

Mistry and his team have just started enrolling patients in an international trial of a small molecule substrate inhibitor—in the form of a pill, which was developed by Genzyme Corporation. "Because it is a pill and will affect all cell types, we expect it to reverse all, not just part, of the disease. Also, it should be less expensive than enzyme treatment," he said.

The work of a researcher in this study was partially funded by the Yale Clinical and Translational Science Award (CTSA) grant from the National Center for Research Resources at the National Institutes of Health.

Other authors on the study include Jun Liu, Mei Yang, Timothy Nottoli, James McGrath, Dhanpat Jain, Kate Zhang, Joan Keutzer, Wei-Lein Chuang, Wajahat Z. Mehal, Hongyu Zhao, Aiping Lin, Shrikant Mane, Xuan Liu, Yuan Z. Peng, Jian H. Li, Manasi Argawal, Ling-Ling Zhu, Harry C. Blair, Lisa J. Robinson, Jameel Iqbal, Li Sun and Mone Zaidi.

Citation: PNAS doi/10.1073/pnas

Karen N. Peart | EurekAlert!
Further information:
http://www.yale.edu

More articles from Health and Medicine:

nachricht Nanoparticles as a Solution against Antibiotic Resistance?
15.12.2017 | Friedrich-Schiller-Universität Jena

nachricht Plasmonic biosensors enable development of new easy-to-use health tests
14.12.2017 | Aalto University

All articles from Health and Medicine >>>

The most recent press releases about innovation >>>

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

Im Focus: First-of-its-kind chemical oscillator offers new level of molecular control

DNA molecules that follow specific instructions could offer more precise molecular control of synthetic chemical systems, a discovery that opens the door for engineers to create molecular machines with new and complex behaviors.

Researchers have created chemical amplifiers and a chemical oscillator using a systematic method that has the potential to embed sophisticated circuit...

Im Focus: Long-lived storage of a photonic qubit for worldwide teleportation

MPQ scientists achieve long storage times for photonic quantum bits which break the lower bound for direct teleportation in a global quantum network.

Concerning the development of quantum memories for the realization of global quantum networks, scientists of the Quantum Dynamics Division led by Professor...

Im Focus: Electromagnetic water cloak eliminates drag and wake

Detailed calculations show water cloaks are feasible with today's technology

Researchers have developed a water cloaking concept based on electromagnetic forces that could eliminate an object's wake, greatly reducing its drag while...

Im Focus: Scientists channel graphene to understand filtration and ion transport into cells

Tiny pores at a cell's entryway act as miniature bouncers, letting in some electrically charged atoms--ions--but blocking others. Operating as exquisitely sensitive filters, these "ion channels" play a critical role in biological functions such as muscle contraction and the firing of brain cells.

To rapidly transport the right ions through the cell membrane, the tiny channels rely on a complex interplay between the ions and surrounding molecules,...

Im Focus: Towards data storage at the single molecule level

The miniaturization of the current technology of storage media is hindered by fundamental limits of quantum mechanics. A new approach consists in using so-called spin-crossover molecules as the smallest possible storage unit. Similar to normal hard drives, these special molecules can save information via their magnetic state. A research team from Kiel University has now managed to successfully place a new class of spin-crossover molecules onto a surface and to improve the molecule’s storage capacity. The storage density of conventional hard drives could therefore theoretically be increased by more than one hundred fold. The study has been published in the scientific journal Nano Letters.

Over the past few years, the building blocks of storage media have gotten ever smaller. But further miniaturization of the current technology is hindered by...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

Event News

See, understand and experience the work of the future

11.12.2017 | Event News

Innovative strategies to tackle parasitic worms

08.12.2017 | Event News

AKL’18: The opportunities and challenges of digitalization in the laser industry

07.12.2017 | Event News

 
Latest News

Engineers program tiny robots to move, think like insects

15.12.2017 | Power and Electrical Engineering

One in 5 materials chemistry papers may be wrong, study suggests

15.12.2017 | Materials Sciences

New antbird species discovered in Peru by LSU ornithologists

15.12.2017 | Life Sciences

VideoLinks
B2B-VideoLinks
More VideoLinks >>>