The role of transepithelial transport by M cells in microbial invasion and host defense

作者：Marian R. Neutra, Jean-Pierre Kraehenbühl · 发表于：Journal of Cell Science · 年份：1993 · DOI：10.1242/jcs.1993.supplement_17.29 · 被引用次数：25 · 研究领域：Vibrio bacteria research studies、Escherichia coli research studies、Bacteriophages and microbial interactions

Transepithelial transport of antigens by M cells in the epithelium associated with lymphoid follicles in the intestine delivers immunogens directly to organized mucosal lymphoid tissues, the inductive sites for mucosal immune responses. We have exploited M cell transport to generate and characterize specific monoclonal IgA antibodies that can prevent interaction of pathogens with epithelial surfaces. The relative protective capacities of specific monoclonal IgA antibodies have been tested in vivo by generation of hybridoma tumors that result in secretion of monoclonal IgA into the intestine. Using this method, we have established that secretion of IgA antibodies recognizing a single surface epitope on enteric pathogens can provide protection against colonization or invasion of the intestinal mucosa.