CAMP and cystic fibrosis: Bonfield et al reported that human primed MSCs can exhibit anti-microbial activity in a sub-lethal cystic fibrosis mouse model of chronic Pseudomonas aeruginosa infection by secreting antimicrobial peptide cathelicidin, hCAP-18/LL-37 (Bonfield et al., 2013; Sutton et al., 2016).