A protein made by gut cells helps to destroy harmful bacteria in the intestines, according to experiments in mice 1. Roughly 50 proteins in the blood make up the complement system, which forms a ...

Researchers have discovered that SARS-CoV-2 hijacks three important host proteins that dampen the activity of the complement system, a key component of early antiviral immunity. This significantly ...

Undertaking a study of proteins found in the complement system, an important part of the immune system, of patients with long COVID, researchers have identified a blood protein ‘signature’ that may ...

Scientists discovered how macrophages, which act as the immune system's first line of defense, tailor their specific responses to various intruders through the independent and cooperative functions of ...

Our bodies response to invading pathogens through different mechanisms of the immune system. Innate immunity first detects disease and relays a defense signal to activate the second wave of immune ...

Researchers have shown that certain plant proteins resemble human signaling proteins of the immune system and can bind to their receptors. The human immune system is based on cells that communicate ...