Hans Jürgen Hoffmann

Human Mast Cell Sensitization with IgE Increases miRNA-210 Expression

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BACKGROUND: MicroRNAs (miRNAs) represent important post-transcriptional regulators with a dynamic expression profile during health and disease.

OBJECTIVES: We explored the miRNA profile of human mast cells (MCs) during sen-sitization with IgE, during activation through IgE, and relat ed it to prostaglandin D2 synthesis and histamine release.

METHOD: We investigated the expression pattern of 762 miRNAs during the IgE-mediated sensitization and activation of MCs cultured from CD133+ stem cells that were isolated from allergic asthmatic patients and nonatopic controls.

RESULTS: IgE-mediated sensitization increased the expression of miRNA-210 eight-fold. This increase was sustained during IgE-mediated MC activation. Furthermore, we confirmed the increase of the miRNA-132/212 cluster after MC activation. Predicted target genes of miRNA-210/132/212 were enriched in several pathways known to be involved in MC activation. Histamine release was significantly higher in MCs from allergic patients when compared to controls, and a number of miRNAs correlated with histamine release and prostaglandin D2 synthesis during MC activation.

CONCLUSION: The miRNAs and analysis presented here can help to elucidate the role of miRNAs in mediator release during MC activation. We speculate that miRNA-210 could be important in MC sensitization that leads to allergic symptoms.

Original languageEnglish
JournalInternational Archives of Allergy and Immunology
Pages (from-to)102-107
Number of pages6
Publication statusPublished - 2019

Bibliographical note

© 2019 S. Karger AG, Basel.

    Research areas

  • Allergen activation, Histamine, Human mast cells, IgE sensitization, miRNA-210, Prostaglandin D, Prostaglandin D-2, MICRORNA, MicroRNAs/genetics, Humans, Gene Expression Regulation, Gene Expression Profiling, Hypersensitivity/genetics, Immunoglobulin E/immunology, Cell Degranulation/immunology, Biomarkers, Mast Cells/immunology

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