Critical Role of Antimicrobial Peptide Cathelicidin for Controlling Helicobacter pylori Survival and Infection
Critical Role of Antimicrobial Peptide Cathelicidin for Controlling Helicobacter pylori Survival and Infection
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抗菌肽 Cathelicidin 对于控制幽门螺杆菌生存和感染的关键作用
DOI:
10.4049/jimmunol.1500021
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发表时间:
2016-02
影响因子:
4.4
通讯作者:
Cho CH
中科院分区:
文献类型:
--
作者:
Zhang L;Wu WKK;Gallo RL;Fang EF;Hu W;Ling TKW;Shen J;Chan RLY;Lu L;Luo XM;Li MX;Chan KM;Yu J;Wong VWS;Ng SC;Wong SH;Chan FKL;Sung JJY;Chan MTV;Cho CH
The antimicrobial peptide cathelicidin is critical for protection against different kinds of microbial infection. This study sought to elucidate the protective action of cathelicidin against Helicobacter pylori infection and its associated gastritis. Exogenous cathelicidin was found to inhibit H. pylori growth, destroy the bacteria biofilm, and induce morphological alterations in H. pylori membrane. Additionally, knockdown of endogenous cathelicidin in human gastric epithelial HFE-145 cells markedly increased the intracellular survival of H. pylori. Consistently, cathelicidin knockout mice exhibited stronger H. pylori colonization, higher expression of proinflammatory cytokines IL-6, IL-1β, and ICAM1, and lower expression of the anti-inflammatory cytokine IL-10 in the gastric mucosa upon H. pylori infection. In wild-type mice, H. pylori infection also stimulated gastric epithelium-derived cathelicidin production. Importantly, pretreatment with bioengineered Lactococcus lactis that actively secretes cathelicidin significantly increased mucosal cathelicidin levels and reduced H. pylori infection and the associated inflammation. Moreover, cathelicidin strengthened the barrier function of gastric mucosa by stimulating mucus synthesis. Collectively, these findings indicate that cathelicidin plays a significant role as a potential natural antibiotic for H. pylori clearance and a therapeutic agent for chronic gastritis.
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DOI:
10.1148/radiology.203.2.434
发表时间:
1997-05
期刊:
--
影响因子:
--
作者:
D. Beall
通讯作者:
D. Beall
影响因子:
4
作者:
E. K. Tai;H. Wong;Emily Y M Lam;W. Wu;L. Yu;M. Koo;C. Cho
通讯作者:
E. K. Tai;H. Wong;Emily Y M Lam;W. Wu;L. Yu;M. Koo;C. Cho
影响因子:
2.8
作者:
K. Klaamas;O. Kurtenkov;S. Mensdorff-Pouilly;L. Shljapnikova;L. Miljukhina;Vadim Brjalin;A. Lipping
通讯作者:
K. Klaamas;O. Kurtenkov;S. Mensdorff-Pouilly;L. Shljapnikova;L. Miljukhina;Vadim Brjalin;A. Lipping
影响因子:
5.1
作者:
L. Zhang;J. Yu;C. Wong;Tkw Ling;ZJ Li;KM Chan;SX Ren;J. Shen;Rly Chan;CC Lee
通讯作者:
L. Zhang;J. Yu;C. Wong;Tkw Ling;ZJ Li;KM Chan;SX Ren;J. Shen;Rly Chan;CC Lee
影响因子:
3.1
作者:
Mannam, P;Jones, KF;Geller, BL
通讯作者:
Geller, BL