How to use Technologies offered

A search for a cancer, preclinical stage, synthetic opportunity would use the selection "Therapeutics, Diagnostics" in 'Sector', 'Cancerous, neoplasmatic' in 'Disease Category', 'Drugs, Small Molecule' in 'Technology' and 'Preclinical' in 'Development Stage'.

Selection of 'Enabling Technology, Platform Technology' in 'Sector' will identify all kinds of research technologies that can be used in more areas of life sciences than pharmaceuticals only.

Each technology profile gives the name of a company or academic institute as source of the offer, and a link allowing to contact the potential licensor. In most cases a profile includes a pdf covering the available non-confidential information as well as detailed contact data.

Registered users can create non-public notifications profiles which will inform them about new 'Technologies Offered' entries fitting their needs as specified. In addition these profiles allow them to filter the available information more comfortably.

Name

University of Bonn - Arylsulfatase A-deficient mice - A model for studying metachromatic leukodystrophy

Organization name

PROvendis GmbH

Profile

Invention

Metachromatic leukodystrophy (MLD) is a lysosomal storage disorder caused by the deficiency of arylsulfatase A (ASA). This results in accumulation of sulfated glycosphingolipids, mainly 3-O-sulfogalactosylceramide (sulfatide), in the nervous system and various other organs. In patients, lipid storage causes a progressive loss of myelin leading to various neurological symptoms. The sulfatide storage in ASA-deficient mice is comparable to humans, but the mice do not mimic the myelin pathology.

Therefore, in addition to the sole transgenic ASA-deficient (tg/ASA(-/-)) knock-out mice, a second model was generated overexpressing the sulfatide-synthesizing enzyme galactose-3-O-sulfotransferase.

These mice displayed a significant increase in sulfatide storage in the brain and peripheral nerves. Mice older than one year developed severe neurological symptoms. Nerve conduction velocity was significantly reduced due to hypomyelinated and demyelinated axons of the nerves.

Thus, increasing sulfatide storage in ASA-deficient mice leads to neurological symptoms and morphological alterations that are reminiscent of human MLD.

Current Status

On behalf of the University Bonn, PROvendis offers access to the mouse models under a Material License Agreement. The two models are available in combination or separately.

Relevant Publication

Hess, B., et al. (1996) Phenotype of arylsulfatase A-deficient mice: Relationship to human metachromatic leukodystrophy. Proc. Natl. Acad. Sci. USA 93: 14821-6.

Ramakrishnan, H., et al. (2007) Increasing sulfatide synthesis in myelin-forming cells of arylsulfatase A-deficient mice causes demyelination and neurological symptoms reminiscent of human metachromatic leukodystrophy, J. Neurosci, 27(35): 9482-90.

To view the contact information, attachments and url of this profile you have to login into your account or register a new account: Login Register

Your feedback

Please click here to log in to view the complete profile.

 
 

latest entries