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These results suggest that previously reported responses to smoking, which include toxin metabolism, macrophage recruitment, and squamous metaplasia, are a joint effort conducted across epithelial cell types
Here, it can be suggested also that the high frequency of changing threats in the warnings may be more effective among the smokers which will get more health information and may not develop immunity to the warnings
Based on their role, several distinct subsets of macrophages have been defined: (1) classically activated macrophages ( M1 ) which mediate antimicrobial defense via secretion of pro-inflammatory cytokines, (2) alternatively activated macrophages ( M2 ) with anti-inflammatory function, (3) regulatory macrophages ( Mregs ) which secrete large amounts of IL10, (4) tumor-associated macrophages ( TAMs ) which suppress anti-tumor immunity, and finally (5) myeloid-derived suppressor cells ( MDSCs ) as a group of immature cells linked to TAMs [125]
June 3, 2009
