Inhibitory effects of intestinal mucus on bacterial adherence to cultured intestinal epithelial cells after surface burns.
OBJECTIVE
To investigate the relationship between intestinal mucus IgA content and mucus barrier function after surface burns.


METHODS
Detection of IgA content in mucus was performed by enzyme linked immunosorbent assay (ELISA) at different time points after burns. Bacterial adherence to cultured epithelial cells (IEC-6) in vitro using E. coli was assessed for each group.


RESULTS
The intestinal mucus barrier function declined, parallel to a decrease in IgA content after surface burn in mice. In the normal control group, mucus IgA content was 2.32 D lambda, and 2.51, 1.76, 1.49, 1.06 D lambda at 0.5 h, 1 h, 6 h and 24 h after burn, respectively. Bacterial adherence rate was 0.53 in control group, and 0.46, 0.69, 0.58, 0.81 at 0.5 h, 1 h, 6 h, 24 h after burn, respectively.


CONCLUSIONS
The decrease of intestinal mucus IgA contents is one of the reasons why intestinal mucus barrier function declines after burns.
Bai
X
X
Research Institute of Burn, Southwest Hospital, Third Military Medical University, Chongquing 400038, China.
Liu
X
X
Su
Y
Y
D000818:Animals; D001422:Bacterial Adhesion; D002056:Burns / Q000503:physiopathology*; D004797:Enzyme-Linked Immunosorbent Assay; D004847:Epithelial Cells / Q000166:cytology; D004926:Escherichia coli / Q000502:physiology; D007070:Immunoglobulin A / Q000032:analysis*; D007413:Intestinal Mucosa / Q000166:cytology / Q000276:immunology*; D051379:Mice
D007070:Immunoglobulin A