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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 language | English |
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Journal | International Archives of Allergy and Immunology |
Volume | 179 |
Issue | 2 |
Pages (from-to) | 102-107 |
Number of pages | 6 |
ISSN | 1018-2438 |
DOIs | |
Publication status | Published - 2019 |
© 2019 S. Karger AG, Basel.
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ID: 152763761