Bacterial capsules and interactions with complement and phagocytes.

actively expressed in circulating neutrophils are those which are either subject to rapid turnover (i.e. those of the contractile machinery and membrane receptors) or those whose rate of biosynthesis needs to be increased during inflammation. It does not appear that mature cells actively synthesize, or upregulate during ‘priming’, those components normally present in high concentrations and/or not subject to turnover in non-activated cells (i.e. granule enzymes or the components of the NADPH oxidase). These up-regulated proteins appear to play an important role in the function of these cells during an acute inflammatory response and further work is clearly necessary to characterize these proteins and identify their biological functions.