The complement system is a critical modulator of immune responses that triages microbial and other threats through pattern recognition, tailored effector functions, and intensive crosstalk with other ...

The complement system is activated in many rheumatic diseases, as evident from deposition of activation fragments in affected tissue, decreased residual complement function and increased levels of ...

Complement component 3, often called C3, is an essential protein of the immune system. This protein plays a vital role in the body’s innate immune system, providing the first line of defense against ...