Abstract：
:Clostridium difficile is the leading cause of hospital-acquired diarrhea, also known as C. difficile associated diarrhea. The two major toxins, toxin A and toxin B are produced by most C. difficile bacteria, but some strains, such as BI/NAP1/027 isolates, produce a third toxin called binary toxin. The precise biological role of binary toxin is not clear but it has been shown to be a cytotoxin for Vero cells. We evaluated the toxicity of these toxins in mice and hamsters and found that binary toxin causes death in both animals similar to toxins A and B. Furthermore, immunization of mice with mutant toxoids of all three toxins provided protection upon challenge with native toxins. These results support the concept that binary toxin contributes to the pathogenicity of C. difficile and provide a method for monitoring the toxicity of binary toxin components in vaccines.
journal_name
Vaccinejournal_title
Vaccineauthors
Wang S,Rustandi RR,Lancaster C,Hong LG,Thiriot DS,Xie J,Secore S,Kristopeit A,Wang SC,Heinrichs JHdoi
10.1016/j.vaccine.2015.11.026subject
Has Abstractpub_date
2016-03-04 00:00:00pages
1319-23issue
10eissn
0264-410Xissn
1873-2518pii
S0264-410X(15)01668-0journal_volume
34pub_type
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