Beta-Interferon and wanted posters

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Beta-Interferon and wanted posters

Postby dignan » Mon Jul 20, 2009 3:47 pm

There is always a lot of ho-hum research about beta interferon, but this I find interesting:


The right messenger for a healthy immune response

July 20, 2009 - Researchers from the Molecular Immunology group at the Helmholtz Centre for Infection Research (HZI) in Braunschweig, Germany have now shown that Beta-Interferon also plays a crucial role during an immune response: without Beta-Interferon immune cells are unable to show "wanted posters" of pathogens to other cells. As a consequence, these cells will not recognize the pathogen and the immune response does not start properly. The group's results have now been published in the current issue of the scientific magazine Journal of Immunology.

During an infection, immune cells produce Beta-Inferferon. Interestingly, an immune response is even stronger when a low amount of Beta-Interferon has already been present before the infection occurs. Scientists call this behaviour "priming". A healthy basal level of Beta-Interferon facilitates a faster immune reaction against microbial and viral threads.

Researchers from the HZI have now managed to show why this is the case: Beta-Interferon is a key regulator and of vital importance in enabling the immune system to display fragments of pathogens, so-called antigens. Immune cells present these antigens on their surface and in this way communicate with one another: antigens are the "wanted posters" of the virus or the bacterium which has to be destroyed.

The researchers discovered the important role of Beta-Interferon in mice lacking the gene for Beta-Interferon. These mice displayed poor immune responses. "Without those knock-out mice we would not have been able to identify the impact of Beta-Interferon on the immune system," says Siegfried Weiß, leader of the Molecular Immunology group at the HZI. His research assistant, the scientist Natalia Zietara, investigated what Beta-Interferon is doing in immune cells. She found a molecular factor that is pivotal in producing the pathogen's profile and which is regulated by Beta-Interferon. The factor belongs to a group of proteins that is usually produced in conditions of stress. Without Beta-Interferon, no active stress protein - without stress protein, no wanted poster - without wanted poster, no immune response.

"We now have a far better understanding of how immune responses start, but also how diseases like autoimmune diseases may develop," says Weiß: without Beta-Interferon, the immune system may not be able to learn how to tolerate itself during the embryonic phase and that it should not fight against self-structures. "Our findings can help to develop or improve new therapeutics to combat autoimmune diseases such as multiple sclerosis or cancer."

http://www.physorg.com/news167307019.html
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Postby Lyon » Mon Jul 20, 2009 4:48 pm

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Postby dignan » Mon Jul 20, 2009 6:30 pm

Bob? Bowie?
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Postby scoobyjude » Mon Jul 20, 2009 6:47 pm

Not only Bowie...Bowie from Labyrinth! What kind of message are we to take from this Bob?!!
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Postby Lyon » Mon Jul 20, 2009 6:59 pm

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Postby scoobyjude » Mon Jul 20, 2009 7:12 pm

Ok, maybe I'm dating myself a little but I loved that movie growing up. And I read the "must speak up" quote from you on the song and it all makes sense now-Evil, Dictator Bob. :lol: I loved the music from the movie too, it's the only Bowie music that I like. Please just promise me you're not gonna be wearing tights and makeup the next time we see you...
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Postby Lyon » Tue Jul 21, 2009 1:25 am

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Postby flautenmusik » Tue Jul 21, 2009 10:40 am

funny how a thread can get completely off topic...

I LOVE David Bowie! All phases of him, starting from the 60's to now (and I am only 28!) Your avatar is really making me hot and bothered over here! :twisted:
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