At the outset, T-cells do not know which targets they should attack; they learn this from the thymus — a gland that is common among many types of animals. Sometimes, T-lymphocytes mistakenly take regular cells for harmful elements, which is the reason behind various autoimmune disorders.
The video created by researchers from UT Austin shows purple T-lymphocytes and yellow dendritic cells, which are used for ‘practice’, thanks to their antigen presentation feature.
The process was recorded on video using short-impulse lasers. This discovery might aid in the development of treatment for autoimmune disorders.