home   genetic news   bioinformatics   biotechnology   literature   journals   ethics   positions   events   sitemap
 
  HUM-MOLGEN -> Genetic News | search  
 

Cobra Venom Factor Delays Onset Of Scrapie

 
  April, 6 2001 0:29
your information resource in human molecular genetics
 
     
The present consensus is that the most likely route of infection of bovine spongiform encephalopathy (BSE) and new-variant Creutzfeldt-Jakob disease (vCJD) has been through the food chain-eating products contaminated with abnormal prion protein. The infectious prion then replicates in lymph tissues before moving through the nerves to the spinal cord or brain stem. Thus, anything that could impair replication of abnormal prions in the lymph nodes would delay the onset of clinical signs of this type of disease. Two papers in the April issue of Nature Medicine (Vol. 7, No. 4, 01 Apr 2001) report on a way that this could be achieved.

Neil Mabbott and colleagues at the Neuropathogenesis Unit in Edinburgh, Scotland, and Adriano Aguzzi's team at University of Zurich have discovered that depleting components of one part of the immune system called the complement system significantly delays the onset of disease symptoms in mice injected with scrapie.

The scientists treated mice with cobra venom factor (CVF), which is known to deplete levels of a complement molecule called C3 for five days. They then injected mice either intraperitoneally (i.p.) or intracerebrally with the infectious scrapie agent. For mice that had been infected i.p., the researchers discovered that those treated with CVF took longer to develop clinical symptoms of the disease than non-treated animals and that the early accumulation of abnormal prions in the spleen was reduced. The course of disease progression was the same in all animals that were infected by durect injection into the brain.

Franco Cardone and Maurizio Pocchiari from the Istituto Superiore di Sante in Italy discuss the experiments in an accompanying News & Views article.

Contact

Dr. Neil A. Mabbott
Neuropathogenesis Unit,
Institute for Animal Health,
Edinburgh, UK
Tel: + 11 44 131 667 5204
Fax: + 11 44 131 668 3872
Email: neil.mabbott@bbsrc.ac.uk

Dr. Maurizio Pocchiari
Laboratory Superiore di Sanita
Rome, Italy
Email: pocchia@iss.it

(C) Nature Medicine press release.


Message posted by: Trevor M. D'Souza

print this article mail this article
Bookmark and Share this page (what is this?)

Social bookmarking allows users to save and categorise a personal collection of bookmarks and share them with others. This is different to using your own browser bookmarks which are available using the menus within your web browser.

Use the links below to share this article on the social bookmarking site of your choice.

Read more about social bookmarking at Wikipedia - Social Bookmarking

Latest News
Variants Associated with Pediatric Allergic Disorder

Mutations in PHF6 Found in T-Cell Leukemia

Genetic Risk Variant for Urinary Bladder Cancer

Antibody Has Therapeutic Effect on Mice with ALS

Regulating P53 Activity in Cancer Cells

Anti-RNA Therapy Counters Breast Cancer Spread

Mitochondrial DNA Diversity

The Power of RNA Sequencing

‘Pro-Ageing' Therapy for Cancer?

Niche Genetics Influence Leukaemia

Molecular Biology: Clinical Promise for RNA Interference

Chemoprevention Cocktail for Colon Cancer

more news ...

Generated by News Editor 2.0 by Kai Garlipp
WWW: Kai Garlipp, Frank S. Zollmann.
7.0 © 1995-2016 HUM-MOLGEN. All rights reserved. Liability, Copyright and Imprint.