Get a load of this!
Curtesy of Brad DeLong’s site. Brad lets us know this.
After some viewing I think that this isn’t just a series of pretty pictures. This is a real story. What we’re watching is the innards of helper T-cell activation. The lymphocyte crawling along the arteriole wall at the beginning has picked up a foreign signal, and has latched onto a macrophage through the T-cell receptors and major histocompatibility receptors. Then we dive into the cell, and the majority of the video shows the synthesis, sorting, and delivery of T-cell receptors, cytokines, and other proteins, and we finish with the now-alerted and activated lymphocyte slipping in-between the capillary wall cells on its way to trouble.
Some people know an amazing amount. Anyway, please observe the drama – perhaps going on inside you as you watch. Fortunately Ken has created a category for this post – ‘life’.