[Role of the complement C3 protein in the control of the specific immune response].

Abstract excerpt

Whereas complement system was usually considered as a member of innate defence, one of its components (C3) is now thought to facilitate acquired immunity. This role is due first to its capacity to covalently bind to antigens and secondly to the interactions of its proteolytic fragments with different receptors expressed on most cells involved in the acquired immune response. After activation in the plasma, C3 is...

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