The production of TNF-alpha and IFN-alpha cytokines by peripheral blood mononuclears in response to stimulation by TLR2/6, TLR4, TLR5, TLR9 ligands (zymosan, LPS, flagellin, and CpG-oligodeoxynucleotide, respectively) was studied in donors and patients with common variable immunodeficiency. Individual characteristics of TNF-alpha production by mononuclears were revealed in donors. Reduced stimulated production of TNF-alpha in response to stimulation with TLR4 and TLR5 ligands in vitro was detected in patients with common variable immunodeficiency.
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