Cathelicidin protects against Helicobacter pylori colonization and the associated gastritis in mice
Publication in refereed journal


摘要Cathelicidin, an antimicrobial peptide of the innate immune system, has been shown to modulate microbial growth, wound healing and inflammation. However, whether cathelicidin controls Helicobacter pylori infection in vivo remains unexplored. This study sought to elucidate the role of endogenous and exogenous mouse cathelicidin (CRAMP) in the protection against H. pylori infection and the associated gastritis in mice. Results showed that genetic ablation of CRAMP in mice significantly increased the susceptibility of H. pylori colonization and the associated gastritis as compared with the wild-type control. Furthermore, replenishment with exogenous CRAMP, delivered via a bioengineered CRAMP-secreting strain of Lactococcus lactis, reduced H. pylori density in the stomach as well as the associated inflammatory cell infiltration and cytokine production. Collectively, these findings indicate that cathelicidin protects against H. pylori infection and its associated gastritis in vivo. Our study also demonstrates the feasibility of using the transformed food-grade bacteria to deliver cathelicidin, which may have potential clinical applications in the treatment of H. pylori infection in humans.
著者Zhang L, Yu J, Wong CCM, Ling TKW, Li ZJ, Chan KM, Ren SX, Shen J, Chan RLY, Lee CC, Li MSM, Cheng ASL, To KF, Gallo RL, Sung JJY, Wu WKK, Cho CH
期刊名稱Gene Therapy
詳細描述To ORKTS: doi:10.1038/gt.2012.92
頁次751 - 760
關鍵詞cathelicidin; gastritis; H. pylori; inflammation
Web of Science 學科類別Biochemistry & Molecular Biology; BIOCHEMISTRY & MOLECULAR BIOLOGY; Biotechnology & Applied Microbiology; BIOTECHNOLOGY & APPLIED MICROBIOLOGY; Genetics & Heredity; GENETICS & HEREDITY; Medicine, Research & Experimental; MEDICINE, RESEARCH & EXPERIMENTAL; Research & Experimental Medicine

上次更新時間 2021-18-09 於 00:25