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Nutrients 2018, 10(6), 744; https://doi.org/10.3390/nu10060744

Hepatic Mitochondrial Dysfunction and Immune Response in a Murine Model of Peanut Allergy

1
Department of Biology, University of Naples “Federico II”, 80126 Naples, Italy
2
Department of Translational Medical Science—Pediatric Section, University of Naples “Federico II”, 80131 Naples, Italy
3
European Laboratory for the Investigation of Food-Induced Diseases (ELFID), University of Naples “Federico II”, 80131 Naples, Italy
4
CEINGE Advanced Biotechnologies, University of Naples “Federico II”, 80131 Naples, Italy
5
Task Force on Microbiome Studies, University of Naples “Federico II”, 80131 Naples, Italy
These Authors contributed equally to the work.
*
Author to whom correspondence should be addressed.
Received: 27 April 2018 / Revised: 4 June 2018 / Accepted: 6 June 2018 / Published: 8 June 2018
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Abstract

Background: Evidence suggests a relevant role for liver and mitochondrial dysfunction in allergic disease. However, the role of hepatic mitochondrial function in food allergy is largely unknown. We aimed to investigate hepatic mitochondrial dysfunction in a murine model of peanut allergy. Methods: Three-week-old C3H/HeOuJ mice were sensitized by the oral route with peanut-extract (PNT). We investigated: 1. the occurrence of effective sensitization to PNT by analysing acute allergic skin response, anaphylactic symptoms score, body temperature, serum mucosal mast cell protease-1 (mMCP-1) and anti-PNT immunoglobulin E (IgE) levels; 2. hepatic involvement by analysing interleukin (IL)-4, IL-5, IL-13, IL-10 and IFN-γ mRNA expression; 3. hepatic mitochondrial oxidation rates and efficiency by polarography, and hydrogen peroxide (H2O2) yield, aconitase and superoxide dysmutase activities by spectrophotometry. Results: Sensitization to PNT was demonstrated by acute allergic skin response, anaphylactic symptoms score, body temperature decrease, serum mMCP-1 and anti-peanut IgE levels. Liver involvement was demonstrated by a significant increase of hepatic Th2 cytokines (IL-4, IL-5 and IL-13) mRNA expression. Mitochondrial dysfunction was demonstrated by lower state 3 respiration rate in the presence of succinate, decreased fatty acid oxidation in the presence of palmitoyl-carnitine, increased yield of ROS proven by the inactivation of aconitase enzyme and higher H2O2 mitochondrial release. Conclusions: We provide evidence of hepatic mitochondrial dysfunction in a murine model of peanut allergy. These data could open the way to the identification of new mitochondrial targets for innovative preventive and therapeutic strategies against food allergy. View Full-Text
Keywords: food allergy; mitochondrial function; oxidative stress; Th2 cytokines food allergy; mitochondrial function; oxidative stress; Th2 cytokines
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Trinchese, G.; Paparo, L.; Aitoro, R.; Fierro, C.; Varchetta, M.; Nocerino, R.; Mollica, M.P.; Berni Canani, R. Hepatic Mitochondrial Dysfunction and Immune Response in a Murine Model of Peanut Allergy. Nutrients 2018, 10, 744.

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