Inhibition of pathologic immunoglobulin E in food allergy by EBF-2 and active compound berberine associated with immunometabolism regulation

Autor: Nan Yang, Anish R. Maskey, Kamal Srivastava, Monica Kim, Zixi Wang, Ibrahim Musa, Yanmei Shi, Yixuan Gong, Ozkan Fidan, Julie Wang, David Dunkin, Danna Chung, Jixun Zhan, Mingsan Miao, Hugh A. Sampson, Xiu-Min Li
Jazyk: angličtina
Rok vydání: 2023
Předmět:
Zdroj: Frontiers in Immunology, Vol 14 (2023)
Druh dokumentu: article
ISSN: 1664-3224
DOI: 10.3389/fimmu.2023.1081121
Popis: IntroductionFood allergy is a significant public health problem with limited treatment options. As Food Allergy Herbal Formula 2 (FAHF-2) showed potential as a food allergy treatment, we further developed a purified version named EBF-2 and identified active compounds. We investigated the mechanisms of EBF-2 on IgE-mediated peanut (PN) allergy and its active compound, berberine, on IgE production.MethodsIgE plasma cell line U266 cells were cultured with EBF-2 and FAHF-2, and their effects on IgE production were compared. EBF-2 was evaluated in a murine PN allergy model for its effect on PN-specific IgE production, number of IgE+ plasma cells, and PN anaphylaxis. Effects of berberine on IgE production, the expression of transcription factors, and mitochondrial glucose metabolism in U266 cells were evaluated.ResultsEBF-2 dose-dependently suppressed IgE production and was over 16 times more potent than FAHF-2 in IgE suppression in U266 cells. EBF-2 significantly suppressed PN-specific IgE production (70%, p
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