An Updated View on the Cellular Uptake and Mode-of-Action of Clostridioides Difficile Toxins

Overview

Journal Adv Exp Med Biol

Specialties Biology
General Medicine

Date 2024 Jan 4

PMID 38175478

Authors

Panagiotis Papatheodorou

Nigel P Minton

Klaus Aktories

Holger Barth

Affiliations

Soon will be listed here.

Abstract

Research on the human gut pathogen Clostridioides (C.) difficile and its toxins continues to attract much attention as a consequence of the threat to human health posed by hypervirulent strains. Toxin A (TcdA) and Toxin B (TcdB) are the two major virulence determinants of C. difficile. Both are single-chain proteins with a similar multidomain architecture. Certain hypervirulent C. difficile strains also produce a third toxin, namely binary toxin CDT (C. difficile transferase). C. difficile toxins are the causative agents of C. difficile-associated diseases (CDADs), such as antibiotics-associated diarrhea and pseudomembranous colitis. For that reason, considerable efforts have been expended to unravel their molecular mode-of-action and the cellular mechanisms responsible for their uptake. Many of these studies have been conducted in European laboratories. Here, we provide an update on our previous review (Papatheodorou et al. Adv Exp Med Biol, 2018) on important advances in C. difficile toxins research.

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