Journal article

Essential role of toxin A in C. difficile 027 and reference strain supernatant-mediated disruption of Caco-2 intestinal epithelial barrier function.

PA Sutton, S Li, J Webb, K Solomon, J Brazier, YR Mahida

Clinical & Experimental Immunology | Published : 2008

Abstract

Clostridium difficile induces mucosal inflammation via secreted toxins A and B and initial interactions between the toxins and intestinal epithelial cells (which lead to loss of barrier function) are believed to be important in disease pathogenesis. Secreted toxin-specific antibodies may inhibit such interactions. Using the Caco-2 epithelial cell line, we have investigated the use of an anti-toxin A monoclonal antibody (ATAA) in providing protection against toxin A-mediated disruption of epithelial barrier function (assessed by measurement of transepithelial electrical resistance and luminal to basolateral flux of labelled dextran). In contrast to free antibody, ATAA conjugated to sepharose ..

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