Immune-modulatory Properties of the Octapeptide NAP in Campylobacter jejuni Infected Mice Suffering from Acute Enterocolitis

Human infections with the food-borne zoonotic pathogen are progressively rising and constitute serious global public health and socioeconomic burdens. Hence, application of compounds with disease-alleviating properties are required to combat campylobacteriosis and post-infectious sequelae. In our pr...

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Bibliographic Details
Published in:Microorganisms (Basel) 2020-05, Vol.8 (6), p.802
Main Authors: Heimesaat, Markus M, Mousavi, Soraya, Kløve, Sigri, Genger, Claudia, Weschka, Dennis, Giladi, Eliezer, Bereswill, Stefan, Gozes, Illana
Format: Article
Language:English
Subjects:
activity-dependent neuroprotective protein (ADNP)
acute campylobacteriosis model
anti-inflammatory effects
Campylobacter
Campylobacter jejuni
Enterocolitis
Health aspects
immune-modulatory properties
NAP
Peptides
Physiological aspects
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Summary:Human infections with the food-borne zoonotic pathogen are progressively rising and constitute serious global public health and socioeconomic burdens. Hence, application of compounds with disease-alleviating properties are required to combat campylobacteriosis and post-infectious sequelae. In our preclinical intervention study applying an acute induced enterocolitis model, we surveyed the anti-pathogenic and immune-modulatory effects of the octapeptide NAP which is well-known for its neuroprotective and anti-inflammatory properties. Therefore, secondary abiotic IL-10 mice were perorally infected with and intraperitoneally treated with synthetic NAP from day 2 until day 5 post-infection. NAP-treatment did not affect gastrointestinal colonization but could alleviate clinical signs of infection that was accompanied by less pronounced apoptosis of colonic epithelial cells and enhancement of cell regenerative measures on day 6 post-infection. Moreover, NAP-treatment resulted in less distinct innate and adaptive pro-inflammatory immune responses that were not restricted to the intestinal tract but could also be observed in extra-intestinal and even systemic compartments. NAP-treatment further resulted in less frequent translocation of viable pathogens from the intestinal tract to extra-intestinal including systemic tissue sites. For the first time, we here provide evidence that NAP application constitutes a promising option to combat acute campylobacteriosis.
ISSN:2076-2607
2076-2607
DOI:10.3390/microorganisms8060802