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Difficile Toxins A major nosocomial pathogen, Clostridium difficile causes antibiotic-associated colitis and intestinal Inflammatory disease, together called CDI. How does C Difficile Toxin cause diarrhea? By releasing two large protein enterotoxins, C difficile Toxin A (TcdA) and C difficile Toxin B (TcdB), Clostridium difficile mediates inflammatory diarrhea and compromises intestinal epithelial cells. Either toxin when administered to cultured cells disrupts the cytoskeleton and sets off capsase-dependent apoptosis, although, C difficile Toxin B is many times more potent than C difficile Toxin A. Both toxins also activate intestinal epithelial and immune cells to produce cytokines and chemokines, likely contributing to the complications associated with severe CDI. Intracellular targets of TcdA and TcdB are RhoGTPases which regulate many host cell processes including establishing an epithelial barrier and the migration and signaling of immune cells. When the Rho proteins are glycosylated by C difficile Toxins A or B, signaling is disrupted leading to the intestinal damage and inflamation characteristic of CDI. List Labs C. Difficile Toxins have been involved with the research and development of diagnostics. Our Citations include information referencing the use of difficile toxins in research. Our Support Portal provides technical information on our difficile toxin products. Visit our blog to learn more about C. Difficile Toxins A and B Support Development of Diagnostics. Anti-Clostridium difficile Binary Toxin B Subunit (Chicken lgY) Anti-Clostridium difficile Binary Toxin B Subunit (Chicken lgY) #758A Anti-Clostridium difficile Toxin A (Chicken lgY) Anti-Clostridium difficile Toxin A (Chicken lgY) #753A Anti-Clostridium difficile Toxin B (Chicken lgY) Anti-Clostridium difficile Toxin B (Chicken lgY) #754A Anti-Toxin A from Clostridium difficile (Goat) Anti-Toxin A from Clostridium difficile (Goat) #752 Binary Toxin from Clostridium difficile, A Subunit Binary Toxin from Clostridium difficile, A Subunit #157A Binary Toxin from Clostridium difficile, B Subunit Binary Toxin from Clostridium difficile, B Subunit #158A Biotinylated Anti-Clostridium difficile Binary Toxin B Subunit (Chicken lgY) Biotinylated Anti-Clostridium difficile Binary Toxin B Subunit (Chicken lgY) #759A Glutamate Dehydrogenase (GDH) from Clostridium difficile Glutamate Dehydrogenase (GDH) from Clostridium difficile #159A Toxin A from Clostridium difficile Toxin A from Clostridium difficile #152C Toxin A Toxoid from Clostridium difficile Toxin A Toxoid from Clostridium difficile #153 Toxin B from Clostridium difficile Toxin B from Clostridium difficile #155A, #155B, #155L (liquid) Toxin B Toxoid from Clostridium difficile Toxin B Toxoid from Clostridium difficile #154A