Evidence of Clostridium perfringens epsilon toxin associated with multiple sclerosis

Sariqa Wagley (1) , Monika Bokori-Brown (1) , Helen Morcrette (1) , Andrea Malaspina (2) , Caroline D’arcy (3) , Sharmilee Gnanapavan (2) , Nicholas Lewis (4) , Michel R. Popoff (5) , Dominika Raciborska (2) , Richard Nicholas (6) , Ben Turner (7) , Richard Titball (1)

1 College of Life and Environmental Sciences [Exeter]
2 QMUL - Queen Mary University of London
3 West London Neuroscience Centre [Charing Cross Hospital, London]
4 MS sciences limited
5 Bactéries anaérobies et Toxines
6 Division of Brain Sciences [London]
7 Barts Health NHS Trust [London, UK]

BACKGROUND: It was recently reported that, using Western blotting, some multiple sclerosis (MS) patients in the United States had antibodies against epsilon toxin (Etx) from Clostridium perfringens, suggesting that the toxin may play a role in the disease. OBJECTIVE: We investigated for serum antibodies against Etx in UK patients with clinically definite multiple sclerosis (CDMS) or presenting with clinically isolated syndrome (CIS) or optic neuritis (ON) and in age- and gender-matched controls. METHODS: We tested sera from CDMS, CIS or ON patients or controls by Western blotting. We also tested CDMS sera for reactivity with linear overlapping peptides spanning the amino acid sequence (Pepscan) of Etx. RESULTS: Using Western blotting, 24% of sera in the combined CDMS, CIS and ON groups ( n = 125) reacted with Etx. In the control group ( n = 125), 10% of the samples reacted. Using Pepscan, 33% of sera tested reacted with at least one peptide, whereas in the control group only 16% of sera reacted. Out of 61 samples, 21 (43%) were positive to one or other testing methodology. Three samples were positive by Western blotting and Pepscan. CONCLUSION: Our results broadly support the previous findings and the role of Etx in the aetiology of MS warrants further investigation.

Mots clés: multiple sclerosis; Clostridium perfringens; epsilon toxin

Domaines: Sciences du Vivant [q-bio]; Microbiologie et Parasitologie; Bactériologie; Biologie cellulaire; Organisation et fonctions cellulaires [q-bio.SC]; Interactions cellulaires [q-bio.CB]

Sariqa Wagley, Monika Bokori-Brown, Helen Morcrette, Andrea Malaspina, Caroline D’arcy, et al.. Evidence of Clostridium perfringens epsilon toxin associated with multiple sclerosis. Multiple Sclerosis Journal, 2018, 25 (5), pp.653-660. ⟨10.1177/1352458518767327⟩. ⟨pasteur-02453931⟩