PMID- 25743476 OWN - NLM STAT- MEDLINE DCOM- 20151112 LR - 20181202 IS - 2049-632X (Electronic) IS - 2049-632X (Print) IS - 2049-632X (Linking) VI - 73 IP - 3 DP - 2015 Apr TI - Clostridium difficile toxin B intoxicated mouse colonic epithelial CT26 cells stimulate the activation of dendritic cells. LID - ftv008 [pii] LID - 10.1093/femspd/ftv008 [doi] AB - Clostridium difficile causes antibiotic-associated diarrhea and pseudomembranous colitis mainly through two exotoxins TcdA and TcdB that target intestinal epithelial cells. Dendritic cells (DCs) play an important role in regulating intestinal inflammatory responses. In the current study, we explored the interaction of TcdB-intoxicated epithelial cells with mouse bone marrow-derived DCs. TcdB induced cell death and heat shock protein translocation in mouse intestinal epithelial CT26 cells. The intoxicated epithelial cells promoted the phagocytosis and the TNF-alpha secretion by DCs. Incubation with TcdB-intoxicated CT26 cells stimulated DC maturation. Moreover, TcdB-treated CT26 cells induced DC immigration when they were injected into mice subcutaneously. Taken together, these data demonstrate that TcdB-intoxicated intestinal epithelial cells are able to stimulate DC activation in vitro and attract DCs in vivo, indicating that epithelial cells may be able to regulate DC activation under the exposure of TcdB during C. difficile infection. CI - (c) FEMS 2015. All rights reserved. For permissions, please e-mail: journals.permissions@oup.com. FAU - Huang, Tuxiong AU - Huang T AD - School of Bioscience and Bioengineering, South China University of Technology (SCUT), Guangzhou 51006, China Department of Microbial Pathogenesis, University of Maryland Dental School, Baltimore, MD 21021, USA. FAU - Perez-Cordon, Gregorio AU - Perez-Cordon G AD - Department of Microbial Pathogenesis, University of Maryland Dental School, Baltimore, MD 21021, USA. FAU - Shi, Lianfa AU - Shi L AD - Department of Microbial Pathogenesis, University of Maryland Dental School, Baltimore, MD 21021, USA. FAU - Li, Guangchao AU - Li G AD - School of Bioscience and Bioengineering, South China University of Technology (SCUT), Guangzhou 51006, China. FAU - Sun, Xingmin AU - Sun X AD - Department of Infectious Disease and Global Health, Tufts Cummings School of Veterinary Medicine, North Grafton, MA 01536, USA. FAU - Wang, Xiaoning AU - Wang X AD - Institute of Life Science, General Hospital of the People's Liberation Army, Beijing 100853, China. FAU - Wang, Jufang AU - Wang J AD - School of Bioscience and Bioengineering, South China University of Technology (SCUT), Guangzhou 51006, China. FAU - Feng, Hanping AU - Feng H AD - Department of Microbial Pathogenesis, University of Maryland Dental School, Baltimore, MD 21021, USA hfeng@umaryland.edu. LA - eng GR - R01 AI088748/AI/NIAID NIH HHS/United States GR - R56 AI099458/AI/NIAID NIH HHS/United States GR - R01AI088748/AI/NIAID NIH HHS/United States GR - R01DK084509/DK/NIDDK NIH HHS/United States GR - U19 AI109776/AI/NIAID NIH HHS/United States GR - R01 DK084509/DK/NIDDK NIH HHS/United States GR - R56AI99458/AI/NIAID NIH HHS/United States PT - Journal Article PT - Research Support, N.I.H., Extramural DEP - 20150127 PL - United States TA - Pathog Dis JT - Pathogens and disease JID - 101595366 RN - 0 (Bacterial Proteins) RN - 0 (Bacterial Toxins) RN - 0 (Heat-Shock Proteins) RN - 0 (Tumor Necrosis Factor-alpha) RN - 0 (toxB protein, Clostridium difficile) SB - IM MH - Animals MH - Bacterial Proteins/*toxicity MH - Bacterial Toxins/*toxicity MH - *Cell Communication MH - Cell Death/drug effects MH - Cell Differentiation MH - Cell Movement MH - Dendritic Cells/*immunology/physiology MH - Epithelial Cells/*drug effects/*immunology/physiology MH - Heat-Shock Proteins/metabolism MH - Male MH - Mice, Inbred BALB C MH - Phagocytosis MH - Protein Transport MH - Tumor Necrosis Factor-alpha/metabolism PMC - PMC4435672 MID - NIHMS689777 OTO - NOTNLM OT - Clostridium difficile OT - TcdB OT - dendritic cells OT - epithelial cells OT - inflammation EDAT- 2015/03/07 06:00 MHDA- 2015/11/13 06:00 PMCR- 2016/04/01 CRDT- 2015/03/07 06:00 PHST- 2015/03/07 06:00 [entrez] PHST- 2015/03/07 06:00 [pubmed] PHST- 2015/11/13 06:00 [medline] PHST- 2016/04/01 00:00 [pmc-release] AID - ftv008 [pii] AID - 10.1093/femspd/ftv008 [doi] PST - ppublish SO - Pathog Dis. 2015 Apr;73(3):ftv008. doi: 10.1093/femspd/ftv008. Epub 2015 Jan 27.