Cell-adhesion molecules mechanically link cell to extracellular material Second Messengers Chemical first messenger (epinephrine) binds to a surface receptor Receptor activates G protein G protein relays signal to adenylate cyclase which converts ATP and cAMP (2nd messenger) ...
3. Production of the cytokines and increased expression of adhesion molecules with the leukocyte infiltration. The leukocytes bring in more free radicals. What are reactive oxygen species? Reactive oxygen species (ROS) are highly reactive molecules containing at least one oxygen atom and one or more...