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MS Society Funds Research Using Zebrafish to Observe CD46 Protein and Its Role in Brain Inflammation

In an innovative research project funded by the National Multiple Sclerosis Society, Dr. Anne Astier from the University of Edinburgh, U.K., and her team will use zebrafish to track the CD46 protein and determine where and how it affects the movement of immune cells into the brain, a process believed to influence multiple sclerosis (MS).

MS is a chronic inflammatory disease, characterized by inflammation in the brain. It is a complex disease that involves multiple aspects (immunological, genetic and environmental), and although several mechanisms have been uncovered, the understanding of MS pathogenesis is far from complete.

The new project will study the role of CD46, a protein present in some immune T cells that move into the brain and attack the protective myelin sheath covering nerve fibers, leading to inflammation. CD46 controls the acquired immune response, with evidence — observed only  in test tubes so far — suggesting that in patients with MS, CD46 may not be properly activated.

Dr. Astier’s team will test if that evidence translates into a living organism. The team will also examine if vitamin D plays a role in CD46 activity and the movement of immune cells into the brain.

Zebrafish, as vertebrates, share a high degree of sequence and functional homology with humans; in addition, they have the ability to reproduce and develop quickly. Due to the conservation of cell biological and developmental processes across all vertebrates, studies in fish can provide useful insights into human disease processes.

The movement of immune cells will be studied using a fluorescent CD46 protein, which is easy to observe in translucent zebrafish.

“We’re very excited to be involved in this new research as it will be the first time we can observe this protein operating in a living organism,” said Dr. Astier in a news release. “By putting a fluorescent CD46 protein in this tiny fish — with the help of zebrafish specialist Dr Dirk Sieger — we’ll be able to observe how the protein operates. This could help us find a way to stop it functioning abnormally as observed in people with MS.”

“With over 100,000 people living with MS, it’s vital we continue to fund innovative research to understand what causes the condition,” added Dr. Sorrel Bickley, head of Biomedical Research at MS Society. “Discovering how this protein acts in people with MS — by cleverly tracking its movement in zebrafish — could lead to the development of more specific treatments for MS with fewer side effects.”

Story Source: The above story is based on materials provided by MULTIPLESCLEROSISNEWSTODAY
Note: Materials may be edited for content and length

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