Medically reviewed by Steffini Stalos, DO Key Takeaways CD4 T helper cells help the body fight infections by signaling other ...

Researchers at the Medical University of Vienna have taken a closer look at a previously largely unknown component of the immune system: the protein molecule TRAT1 (T Cell Receptor Associated ...

As people age, their immune system function declines. T cell populations become smaller and can't react to pathogens as ...

Interleukin-9 (IL-9) is a multifunctional cytokine that plays a critical role in regulating immune responses, allergic inflammation and host defence mechanisms. T helper 9 (TH9) cells, a specialised ...

The brain and spinal cord were once thought to enjoy immune privilege, meaning they were believed to be largely insulated from immune activity elsewhere in the body. In recent years, however, ...