Role for T Cells, IL-2 and IL-6 in the IL-4-dependent in Vitro Human IgE Synthesis
Overview
Affiliations
The role of T cells and monocytes, as well as that of cytokines, such as IL-1, IL-2 and IL-6, on the IL-4-dependent in vitro human IgE synthesis was investigated. Recombinant IL-4, IL-4-containing T-cell clone supernatants and different combinations of recombinant cytokines failed to induce highly purified B cells to synthesize IgE. IL-4-dependent IgE synthesis was restored by addition to purified B cells of either untreated or mitomycin C-treated autologous T lymphocytes. Addition to purified B cells of autologous monocytes did not restore the IgE response, but usually it exerted a potentiating effect on the synthesis of IgE induced by IL-4 in the presence of suboptimal concentrations of T cells. The activity of T cells apparently preceded that of IL-4 and required a physical contact with B cells. The presence in culture of IL-2 also appeared to be necessary for the T-cell and IL-4-dependent IgE synthesis. Even though not essential, IL-6 was able to potentiate IgE synthesis in most experiments, whereas IL-1 did not display any modulatory effect.
Udemgba C, Lin A Curr Opin Pediatr. 2021; 33(6):625-632.
PMID: 34354007 PMC: 8571066. DOI: 10.1097/MOP.0000000000001050.
Tracing IgE-Producing Cells in Allergic Patients.
Eckl-Dorna J, Villazala-Merino S, Campion N, Byazrova M, Filatov A, Kudlay D Cells. 2019; 8(9).
PMID: 31466324 PMC: 6769703. DOI: 10.3390/cells8090994.
IL-10 Indirectly Downregulates IL-4-Induced IgE Production by Human B Cells.
Lin A, Freeman A, Nutman T Immunohorizons. 2019; 2(11):398-406.
PMID: 31026808 PMC: 8890443. DOI: 10.4049/immunohorizons.1800076.
What is the source of serum allergen-specific IgE?.
Eckl-Dorna J, Niederberger V Curr Allergy Asthma Rep. 2013; 13(3):281-7.
PMID: 23585215 DOI: 10.1007/s11882-013-0348-x.
Kobayashi N, Nagumo H, Agematsu K Clin Exp Immunol. 2002; 129(3):446-52.
PMID: 12197885 PMC: 1906463. DOI: 10.1046/j.1365-2249.2002.01932.x.