Clostridium difficile WHO International Programme on Chemical Safety Dendritic cells are specialized antigen presenting 9781468415254 Dendritic cells are specialized antigen presenting cells for T lymphocytes: they process and present antigens efficiently in situ They occur as crystals Clostridium difficile toxins act as glucosyltransferases to inactivate small GTP binding proteins of the Rho family which are involved in regulation of the actin cytoskeleton Clostridium difficile has been recognized as the cause of a broad spectrum of enteric disease ranging from mild antibiotic associated diarrhea to pseudomembranous colitis