f) Population doublings of hTERT expressing MRC5 fibroblasts or controls following co-culture with primed neutrophils (data are representative of 6 independent experiments); g) histograms representing distribution of individual telomere FISH intensities in MRC5 fibroblasts expressing hTERT 16 days following neutrophil co-culture. Dotted blue lines represent median telomere FISH fluorescence.; 