|
|
||||||||
Department of Surgery, Tohoku University School of Medicine, Sendai, Japan 980-8574
Normal luminal bacteria and their products play a role in experimental colitis and inflammatory bowel disease. However, what molecules from what cells are responsible for mounting and maintaining the mucosal defense against luminal flora is still uncertain. The aim of this study was to identify epithelial gene products involved in mucosal defense and inflammation associated with ubiquitous enteric bacteria. Germ-free ICR mice were given an oral bacterial suspension prepared from conventional components (bacterial reconstitution). Small intestinal and colonic epithelial cells were isolated from bacteria-reconstituted, germ-free, and specific pathogen-free mice. Differential gene expression was investigated by differential display, Northern blot, and sequence analysis. Bacterial reconstitution resulted in acute but self-limited colitis. In epithelial cells, we observed the induction of small intestine-specific genes of the cryptdin family and colon-specific expression of serum amyloid A1 gene. This novel approach allows the identification of known and novel gene products involved in mucosal defense against luminal microorganisms and the associated inflammatory response.
germ-free mice; intestinal epithelial cells; mucosal inflammation; differential display
This article has been cited by other articles:
![]() |
S. Mukherjee, C. L. Partch, R. E. Lehotzky, C. V. Whitham, H. Chu, C. L. Bevins, K. H. Gardner, and L. V. Hooper Regulation of C-type Lectin Antimicrobial Activity by a Flexible N-terminal Prosegment J. Biol. Chem., February 20, 2009; 284(8): 4881 - 4888. [Abstract] [Full Text] [PDF] |
||||
![]() |
C. Shah, R. Hari-Dass, and J. G. Raynes Serum amyloid A is an innate immune opsonin for Gram-negative bacteria Blood, September 1, 2006; 108(5): 1751 - 1757. [Abstract] [Full Text] [PDF] |
||||
![]() |
P. D. Eckersall, F. J. Young, A. M. Nolan, C. H. Knight, C. McComb, M. M. Waterston, C. J. Hogarth, E. M. Scott, and J. L. Fitzpatrick Acute Phase Proteins in Bovine Milk in an Experimental Model of Staphylococcus aureus Subclinical Mastitis J Dairy Sci, May 1, 2006; 89(5): 1488 - 1501. [Abstract] [Full Text] [PDF] |
||||
![]() |
L. Maggio-Price, P. Treuting, W. Zeng, M. Tsang, H. Bielefeldt-Ohmann, and B. M. Iritani Helicobacter Infection Is Required for Inflammation and Colon Cancer in Smad3-Deficient Mice Cancer Res., January 15, 2006; 66(2): 828 - 838. [Abstract] [Full Text] [PDF] |
||||
![]() |
B. Stecher, A. J. Macpherson, S. Hapfelmeier, M. Kremer, T. Stallmach, and W.-D. Hardt Comparison of Salmonella enterica Serovar Typhimurium Colitis in Germfree Mice and Mice Pretreated with Streptomycin Infect. Immun., June 1, 2005; 73(6): 3228 - 3241. [Abstract] [Full Text] [PDF] |
||||
![]() |
R. Hari-Dass, C. Shah, D. J. Meyer, and J. G. Raynes Serum Amyloid A Protein Binds to Outer Membrane Protein A of Gram-negative Bacteria J. Biol. Chem., May 13, 2005; 280(19): 18562 - 18567. [Abstract] [Full Text] [PDF] |
||||
![]() |
D. M. Mutch, R. Simmering, D. Donnicola, G. Fotopoulos, J. A. Holzwarth, G. Williamson, and I. Corthesy-Theulaz Impact of commensal microbiota on murine gastrointestinal tract gene ontologies Physiol Genomics, September 16, 2004; 19(1): 22 - 31. [Abstract] [Full Text] [PDF] |
||||
![]() |
F.-F. Chu, R. S. Esworthy, P. G. Chu, J. A. Longmate, M. M. Huycke, S. Wilczynski, and J. H. Doroshow Bacteria-Induced Intestinal Cancer in Mice with Disrupted Gpx1 and Gpx2 Genes Cancer Res., February 1, 2004; 64(3): 962 - 968. [Abstract] [Full Text] [PDF] |
||||
![]() |
M. H. Myles, R. S. Livingston, B. A. Livingston, J. M. Criley, and C. L. Franklin Analysis of Gene Expression in Ceca of Helicobacter hepaticus-Infected A/JCr Mice before and after Development of Typhlitis Infect. Immun., July 1, 2003; 71(7): 3885 - 3893. [Abstract] [Full Text] [PDF] |
||||
![]() |
D KELLY and S CONWAY Genomics at work: the global gene response to enteric bacteria Gut, November 1, 2001; 49(5): 612 - 613. [Full Text] [PDF] |
||||
![]() |
L. V. Hooper and J. I. Gordon Commensal Host-Bacterial Relationships in the Gut Science, May 11, 2001; 292(5519): 1115 - 1118. [Abstract] [Full Text] |
||||
| HOME | HELP | FEEDBACK | SUBSCRIPTIONS | ARCHIVE | SEARCH | TABLE OF CONTENTS |
| Visit Other APS Journals Online |