Using Viruses to Tune T Cell Functionality

As we have learned more about the world of microbes, it’s become clear that it’s possible to use bacteria and viruses as treatments against disease. But although microbes often work incredibly well at protecting against infections or attacking tumours, we still don’t really know exactly how they work.

4626751694

We know that our immune systems have developed ways to keep up with the devious tricks and schemes of microbes. When our cells become infected, the immune system activates a huge cascade of pathways, one of which leads to the activation of T cells against infected targets.

For T cells, forming a tight bond with these infected target cells is thought to be incredibly important in achieving a high-grade T cell killing performance.

Now, a team of scientists from the Chinese CDC has found that the tightness of the bond between a T cell and a target cell infected with vaccinia virus (administered as a therapeutic vaccine) relies heavily on the expression of the signalling molecule, MyD88. Surprisingly, it doesn’t rely much on the affinity of the T cell receptor, or the inflammatory conditions generated by the infection.

This exciting research suggests that vaccines capable of engaging the MyD88 pathway might perform better by tuning T cells to bind more tightly and kill more effectively their intended target cells.

Image credit: NICHD via flickr

Repost from the Stojdl Lab blog.

This entry was posted in Bacteria, Cancer Immunotherapy, Disease, Health, Immunology, Microorganisms, Oncolytic Virus, Personalised Medicine, Science, Vaccines, Virology, Viruses. Bookmark the permalink.

Leave a Reply

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out /  Change )

Google photo

You are commenting using your Google account. Log Out /  Change )

Twitter picture

You are commenting using your Twitter account. Log Out /  Change )

Facebook photo

You are commenting using your Facebook account. Log Out /  Change )

Connecting to %s