This pathway may direct antigenic molecules directly to the lungs where food antigens may excite asthmatic attacks, bronchitis, or more serious and enigmatic inflammatory lung diseases. CIC's may not cause tissue injury unless access to tissue spaces is increased by leakiness of blood vessels, allowing influx of CIC's and cells. CIC's may not cause tissue injury unless vascular permeability is increased - allowing influx of CIC's and cells. The complement system modulates and amplifies the biological effects of CIC's. The main function of the complement cascade is to assemble a drilling rig made of proteins attached to a cell wall and then to drill holes in the cell wall, allowing its contents to flow out.
Complement intends to punch enough holes in a cell to kill it.
If the attacked cell is a bacteria threatening to invade your private parts, your are happy with complement activity. If these drilling rigs are punching holes in your own cell walls, you will not be so happy. This sort of complement misadventure does occur. Like most immune attack systems, complement has go and stop mechanisms. We can say that complement system modulates and amplifies the biological effects of CIC's.