We've updated our Privacy Policy to make it clearer how we use your personal data.

We use cookies to provide you with a better experience, read our Cookie Policy

Scientists Capture First-ever Video of Body’s Safety Test for T cells

Video   May 20, 2019

 

Using a new imaging technique, researchers from the University of Texas at Austin for the first time captured the process in which developing killer T-cells (purple and white) are tested by dendritic cells (yellow), and others, to see if they react to normal proteins from the body, called self-antigens. If a T-cell touches one of these cells and its receptors happen to match the self-antigen displayed, calcium levels spike within the T-cell (turning it whiter), indicating that it has failed the safety check. Left to roam the body, an autoreactive T-cell would attack the body’s own cells. Fortunately, in most cases, this calcium signal triggers the T-cell to self destruct.

The research was conducted by Lauren Ehrlich and Jessica Lancaster. Video credit: University of Texas at Austin.

 
More Information
 
 
 

Recommended Videos

Investigating the World's Lightest Solid

Video

Aerogels are the world's lightest (least dense) solids. They are also excellent thermal insulators and have been used in numerous Mars missions and the Stardust comet particle-return mission. The focus of this video is silica aerogels, though graphene aerogels are now technically the lightest.

WATCH NOW

What Can We Do to Stamp Out Strangles?

Video

How do you solve a problem like strangles? Let’s find out from the horse’s mouth!

WATCH NOW

Single-celled Organism Dies

Video

This video captures the fascinating final moments of a single-celled organism, which belongs to the genus Blepharisma. Watch as the protozoa's membrane breaks down and its organelles spill out.

WATCH NOW

 

Like what you just watched? You can find similar content on the communities below.

Analysis & Separations Immunology & Microbiology

To personalize the content you see on Technology Networks homepage, Log In or Subscribe for Free

LOGIN SUBSCRIBE FOR FREE